e424b5
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Filed Pursuant to Rule 424(b)(5)
Registration No. 333-158354
 
PROSPECTUS SUPPLEMENT
(To the Prospectus Dated April 1, 2009)
 
2,855,659 Shares
 
(INSULET LOGO)
 
Common Stock
 
We are offering 2,855,659 shares of our common stock to certain institutional accredited investors who are lenders under our Facility Agreement dated March 13, 2009, as amended.
 
Our common stock is listed on The NASDAQ Global Market under the symbol “PODD.” On September 29, 2009, the last reported sale price of our common stock on The NASDAQ Global Market was $11.17.
 
Investing in our securities involves a high degree of risk. See “Risk Factors” beginning on page S-4 of this prospectus supplement.
 
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities, or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
 
                 
    Per Share     Total  
 
Offering price
  $ 9.63     $ 27,500,000  
Proceeds, before expenses, to us
  $ 9.63     $ 27,500,000  
 
Delivery of the shares is expected to be made on or about September 30, 2009, against payment for such shares to be received by us on the same date.
 
The date of this prospectus supplement is September 30, 2009.


 

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Prospectus Supplement
 
         
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Accompanying Prospectus
 
         
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ABOUT THIS PROSPECTUS SUPPLEMENT
 
This document is in two parts. The first part is the prospectus supplement, which describes the specific terms of the securities we are offering and also adds to and updates information contained in the accompanying prospectus and the documents incorporated by reference into the accompanying prospectus. The second part, the accompanying prospectus, including the documents incorporated by reference, provides more general information. Generally, when we refer to this prospectus, we are referring to both parts of this document combined. To the extent there is a conflict between the information contained in this prospectus supplement, on the one hand, and the information contained in the accompanying prospectus or in any document incorporated by reference that was filed with the Securities and Exchange Commission, or the SEC, before the date of this prospectus supplement, on the other hand, you should rely on the information in this prospectus supplement. If any statement in one of these documents is inconsistent with a statement in another document having a later date — for example, a document incorporated by reference in the accompanying prospectus — the statement in the document having the later date modifies or supersedes the earlier statement.
 
You should rely only on the information contained or incorporated by reference in this prospectus supplement and the accompanying prospectus. We have not authorized anyone to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We are not making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. Persons outside the United States who come into possession of this prospectus supplement must inform themselves about, and observe any restrictions relating to, the offering of the common stock and the distribution of this prospectus supplement outside the United States. You should assume that the information appearing in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference in this prospectus supplement and the accompanying prospectus is accurate only as of the respective dates of those documents. Our business, financial condition, results of operations and prospects may have changed since those dates. You should read this prospectus supplement, the accompanying prospectus and the documents incorporated by reference in this prospectus supplement and the accompanying prospectus when making your investment decision. You should also read and consider the information in the documents we have referred you to in the section of this prospectus supplement entitled “Where You Can Find More Information.”


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PROSPECTUS SUPPLEMENT SUMMARY
 
This summary highlights certain information about us, this offering and information appearing elsewhere in this prospectus supplement, in the accompanying prospectus and in the documents we incorporate by reference. This summary is not complete and does not contain all of the information that you should consider before investing in our securities. To fully understand this offering and its consequences to you, you should read this entire prospectus supplement and the accompanying prospectus carefully, including the factors described under the headings “Risk Factors” in this prospectus supplement on page S-4, and the financial statements and other information incorporated by reference in this prospectus supplement and the accompanying prospectus when making an investment decision. Unless the context otherwise requires, all references to “we,” “us,” “our company” or “the Company” in this prospectus supplement refers to Insulet Corporation, a Delaware corporation, and its wholly-owned subsidiary.
 
About Insulet Corporation
 
We are a medical device company that develops, manufactures and markets an innovative, discreet and easy-to-use insulin infusion system for people with insulin-dependent diabetes. Our proprietary OmniPod Insulin Management System, or OmniPod System, which consists of our OmniPod disposable insulin infusion device and our handheld, wireless Personal Diabetes Manager, is the only commercially-available insulin infusion system of its kind. Conventional insulin pumps require people with insulin-dependent diabetes to learn to use, manage and wear a number of cumbersome components, including up to 42 inches of tubing. In contrast, the OmniPod System features only two discreet, easy-to-use devices that eliminate the need for a bulky pump, tubing and separate blood glucose meter, provide for virtually pain-free automated cannula insertion, communicate wirelessly and integrate a blood glucose meter. We believe that the OmniPod System’s unique proprietary design offers significant lifestyle benefits to people with insulin-dependent diabetes.
 
The U.S. Food and Drug Administration, or FDA, approved the OmniPod System in January 2005 and we began commercial sale of the OmniPod System in the United States in October 2005. Since the commercial launch of the OmniPod system, we have progressively expanded our marketing efforts from an initial focus in the Eastern United States, to providing availability of the OmniPod System in the entire United States. We focus our sales and marketing efforts towards key diabetes practitioners, academic centers and clinics specializing in the treatment of diabetic patients, as well as individual diabetic patients.
 
Insulet Corporation is a Delaware corporation formed in 2000. Our principal executive offices are located at 9 Oak Park Drive, Bedford, Massachusetts 01730 and our telephone number is (781) 457-5000. Our website is http://www.insulet.com. We do not incorporate the information on, or accessible through, our website into this prospectus, and you should not consider it part of this prospectus.
 
Amendment to Facility Agreement dated March 13, 2009
 
On September 25, 2009, we entered into an amendment of our credit facility agreement (the “Facility Amendment”) with Deerfield Private Design Fund, L.P. (“DPDF”), Deerfield Private Design International, L.P. (“DPDI”), Deerfield Partners, L.P. (“DP”) and Deerfield International Limited (collectively with DPDF, DPDI and DP, the “Deerfield Parties”). Subject to the terms and conditions of the original facility agreement, the Deerfield Parties had agreed to loan us up to $60,000,000. We received the initial disbursement of $27,500,000 on March 31, 2009. In connection with the Facility Amendment, we will repay the principal amount of $27,500,000 of currently outstanding debt. In addition, we are issuing 2,855,659 shares to the Deerfield Parties at a price of $9.63 per share, which represents a 6% discount from our closing price of $10.28 as of September 25, 2009. As part of the Facility Amendment, the Deerfield Parties have agreed to eliminate all future performance-related milestones associated with the remaining $32,500,000 available on the credit facility and reduce the annual interest rate on any borrowed funds to 8.5% from 9.75%. In addition, the Deerfield Parties will forego the remaining 1,500,000 additional warrants that would have been issued upon future draws. We will immediately draw down the remaining $32,500,000 available on the credit facility at closing. The borrowed funds remain payable in September 2012.


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The Offering
 
Common stock we are offering: 2,855,659 shares
 
Common stock to be outstanding after this offering: 30,779,038 shares
 
Use of proceeds: We expect to receive net proceeds from this offering of approximately $27.5 million. We intend to use the net proceeds from this offering for the repayment of our outstanding indebtedness under our Facility Agreement dated March 13, 2009. See “Use of Proceeds” on page S-4.
 
Risk factors: See “Risk Factors” on page S-4 for a discussion of factors you should consider carefully when making an investment decision.
 
NASDAQ Global Market symbol: PODD
 
The number of shares of common stock to be outstanding after this offering is based on 27,923,379 shares outstanding as of September 29, 2009 and excludes:
 
  •  3,681,910 shares of common stock issuable upon the exercise of outstanding stock options as of September 29, 2009 at a weighted average exercise price per share of $8.39;
 
  •  3,812,752 shares of common stock issuable upon the exercise of warrants outstanding as of September 29, 2009 at a weighted average exercise price per share of $3.24; and
 
  •  an aggregate of up to 4,785,107 shares of common stock reserved for future issuance under our 2007 Stock Option and Incentive Plan, 2000 Stock Option and Incentive Plan and 2007 Employee Stock Purchase Plan.


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CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS
 
This prospectus supplement contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements regarding our or our management’s expectations, hopes, beliefs, intentions or strategies regarding the future. We may, in some cases, use words such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “project,” “should,” “will,” “would” or other words that convey uncertainty of future events or outcomes to identify these forward-looking statements. We intend these forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995 and are including this statement for purposes of complying with those safe harbor provisions. Forward-looking statements in this prospectus supplement may include, for example, statements about:
 
  •  our estimates regarding revenues, expenses, capital requirements and needs for additional financing;
 
  •  our manufacturing capacity in future periods;
 
  •  our ability to reduce the per unit production cost of the OmniPod;
 
  •  our ability to raise additional funds in the future;
 
  •  our research, development, commercialization, and other activities and projected expenditures;
 
  •  our ability to obtain regulatory approvals for any future products;
 
  •  our intellectual property position;
 
  •  our cash needs;
 
  •  our plans to pursue the use of the OmniPod System technology for the delivery of drugs other than insulin;
 
  •  the implementation of our business strategies, including our manufacturing strategies and the expansion of our sales and marketing efforts across the United States and internationally; and
 
  •  our financial performance.
 
The forward-looking statements contained in this prospectus supplement are based on current expectations and beliefs concerning future developments and their potential effects on us. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties include, but are not limited to, those factors described in the section entitled “Risk Factors.” Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove incorrect, actual results may vary in material respects from those projected in these forward-looking statements. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.


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RISK FACTORS
 
You should carefully consider the factors discussed in Part I, Item 1A. “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2008, which could materially affect our business, financial condition or future results, before making an investment decision in our company. These risks are not the only risks we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results and, thus, the value of an investment in our company.
 
USE OF PROCEEDS
 
We expect to receive net proceeds from this offering of approximately $27.5 million. We intend to use the net proceeds from this offering for the repayment of the principal amount of our outstanding indebtedness under our Facility Agreement dated March 13, 2009 (the “Facility Agreement”), which was amended on September 25, 2009. As of September 25, 2009, the principal amount of our outstanding indebtedness under this debt facility was $27.5 million, which we used for working capital purposes. All principal amounts outstanding under the Facility Agreement are payable in September 2012. Prior to the amendment of the Facility Agreement on September 25, 2009, our indebtedness under the Facility Agreement accrued interest at a rate of 9.75% per annum, and any undrawn amounts under the Facility Agreement accrued interest at a rate of 2.75% per annum. See the section entitled “Prospectus Supplement Summary — Amendment to Facility Agreement dated March 13, 2009” for a description of the amendment to our Facility Agreement.
 
PLAN OF DISTRIBUTION
 
We are selling 2,855,659 shares of our common stock under this prospectus supplement directly to certain institutional accredited investors who are lenders under our Facility Agreement dated March 13, 2009, as amended, at a price of $9.63 per share. We currently anticipate that the closing of the sale of our common stock under this prospectus supplement will take place on or about September 30, 2009. On the closing date, we will issue the shares of common stock to the investors and we will receive funds in the amount of the aggregate purchase price.
 
We have entered into a Securities Purchase Agreement, dated as of September 25, 2009, with the investors relating to the sale of our common stock offered under this prospectus supplement. A copy of the form of Securities Purchase Agreement was included as Exhibit 10.1 to our Current Report on Form 8-K dated September 25, 2009.
 
Our common stock is traded on The NASDAQ Global Market under the symbol “PODD” and the shares of common stock sold in this offering will be listed on The NASDAQ Global Market. The transfer agent for our common stock is Computershare Trust Company, N.A.
 
WHERE YOU CAN FIND MORE INFORMATION
 
We are subject to the informational requirements of the Exchange Act, and we are required to file reports and proxy statements and other information with the Securities and Exchange Commission. You may read and copy these reports, proxy statements and information at the Securities and Exchange Commission’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the Securities and Exchange Commission at 1-800-SEC-0330. The Securities and Exchange Commission maintains a web site that contains reports, proxy and information statements and other information regarding registrants, including Insulet Corporation, that file electronically with the Securities and Exchange Commission. You may access the Securities and Exchange Commission’s web site at http://www.sec.gov.
 
LEGAL MATTERS
 
The validity of the issuance of the shares of common stock offered hereby will be passed upon by our counsel, Goodwin Procter LLP, Boston, Massachusetts.


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PROSPECTUS
 
$150,000,000
 
(INSULET CORPORATION LOGO)
 
Common Stock
Preferred Stock
Warrants
Units
 
 
From time to time, we may offer and sell up to $150,000,000 of any combination of the securities described in this prospectus, either individually or in units. We will provide specific terms of these offerings and securities in one or more supplements to this prospectus. We may also authorize one or more free writing prospectuses to be provided to you in connection with these offerings. The prospectus supplement and any related free writing prospectus may also add, update or change information contained in this prospectus. You should read this prospectus, the applicable prospectus supplement and any related free writing prospectus carefully before buying any of the securities being offered.
 
This prospectus may not be used to consummate a sale of any securities unless accompanied by a prospectus supplement.
 
Our common stock is listed on The NASDAQ Global Market under the symbol “PODD.” On March 31, 2009, the last reported sale price of our common stock on The NASDAQ Global Market was $4.10. The applicable prospectus supplement will contain information, where applicable, as to any other listing, if any, on The NASDAQ Global Market or any securities market or other exchange of the securities covered by the applicable prospectus supplement.
 
Investing in our securities involves a high degree of risk. You should review carefully the risks and uncertainties described under the heading “Risk Factors” contained in the applicable prospectus supplement and any related free writing prospectus, and under similar headings in the other documents that are incorporated by reference into this prospectus.
 
The securities may be sold directly by us to investors, through agents designated from time to time or to or through underwriters or dealers, on a continuous or delayed basis. For additional information on the methods of sale, you should refer to the section entitled “Plan of Distribution” in this prospectus. If any agents or underwriters are involved in the sale of any securities with respect to which this prospectus is being delivered, the names of such agents or underwriters and any applicable fees, commissions, discounts and over-allotment options will be set forth in a prospectus supplement. The price to the public of such securities and the net proceeds that we expect to receive from such sale will also be set forth in a prospectus supplement.
 
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities, or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
 
 
The date of this prospectus is April 1, 2009


 

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You should rely only on the information contained or incorporated by reference in this prospectus and any applicable prospectus supplements. We have not authorized anyone to provide you with information different from that contained in this prospectus. Offers to sell, and offers to buy, the shares of common stock are valid only in jurisdictions where offers and sales are permitted. The information contained in this prospectus is accurate only as to the date of this prospectus, regardless of the time of delivery of the prospectus or of any sale of the common stock.


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ABOUT THIS PROSPECTUS
 
This prospectus is part of a registration statement on Form S-3 that we filed with the Securities and Exchange Commission utilizing a “shelf” registration process. Under this shelf registration process, we may from time to time offer and sell common stock, preferred stock, warrants or units, or any combination of these securities, in one or more offerings up to a total dollar amount of $150,000,000. This prospectus provides you with a general description of the securities we may offer. Each time we offer any securities under this prospectus, we will provide a prospectus supplement that will contain more specific information about the terms of those securities. We may also authorize one or more free writing prospectuses to be provided to you that may contain material information relating to these offerings. This prospectus, together with applicable prospectus supplements and any related free writing prospectuses, includes all material information relating to these offerings. We may also add, update or change in the prospectus supplement (and in any related free writing prospectus that we may authorize to be provided to you) any of the information contained in this prospectus or in the documents that we have incorporated by reference into this prospectus. We urge you to read carefully this prospectus, any applicable prospectus supplement and any related free writing prospectus, together with the information incorporated herein by reference as described under the heading “Where You Can Find Additional Information,” before buying any of the securities being offered.
 
This prospectus may not be used to consummate a sale of securities unless it is accompanied by a prospectus supplement.
 
You should rely only on the information we have provided or incorporated by reference in this prospectus, any applicable prospectus supplement and any related free writing prospectus that we may authorize to be provided to you. We have not authorized anyone to provide you with different information. No dealer, salesperson or other person is authorized to give any information or to represent anything not contained in this prospectus, any applicable prospectus supplement or any related free writing prospectus that we may authorize to be provided to you. You must not rely on any unauthorized information or representation. This prospectus is an offer to sell only the securities offered hereby, but only under circumstances and in jurisdictions where it is lawful to do so. You should assume that the information in this prospectus, any applicable prospectus supplement or any related free writing prospectus is accurate only as of the date on the front of the document and that any information we have incorporated by reference is accurate only as of the date of the document incorporated by reference, regardless of the time of delivery of this prospectus, any applicable prospectus supplement or any related free writing prospectus, or any sale of a security.
 
This prospectus contains summaries of certain provisions contained in some of the documents described herein, but reference is made to the actual documents for complete information. All of the summaries are qualified in their entirety by the actual documents. Copies of some of the documents referred to herein have been filed, will be filed or will be incorporated by reference as exhibits to the registration statement of which this prospectus is a part, and you may obtain copies of those documents as described below under “Where You Can Find Additional Information.”
 
ABOUT INSULET CORPORATION
 
We are a medical device company that develops, manufactures and markets an innovative, discreet and easy-to-use insulin infusion system for people with insulin-dependent diabetes. Our proprietary OmniPod Insulin Management System, or OmniPod System, which consists of our OmniPod disposable insulin infusion device and our handheld, wireless Personal Diabetes Manager, is the only commercially-available insulin infusion system of its kind. Conventional insulin pumps require people with insulin-dependent diabetes to learn to use, manage and wear a number of cumbersome components, including up to 42 inches of tubing. In contrast, the OmniPod System features only two discreet, easy-to-use devices that eliminate the need for a bulky pump, tubing and separate blood glucose meter, provide for virtually pain-free automated cannula insertion, communicate wirelessly and integrate a blood glucose meter. We believe that the OmniPod System’s unique proprietary design offers significant lifestyle benefits to people with insulin-dependent diabetes.
 
The U.S. Food and Drug Administration, or FDA, approved the OmniPod System in January 2005 and we began commercial sale of the OmniPod System in the United States in October 2005. Since the commercial launch of the OmniPod system, we have progressively expanded our marketing efforts from an initial focus in


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the Eastern United States, to providing availability of the OmniPod System in the entire United States. We focus our sales and marketing efforts towards key diabetes practitioners, academic centers and clinics specializing in the treatment of diabetic patients, as well as individual diabetic patients.
 
Insulet Corporation is a Delaware corporation formed in 2000. Our principal executive offices are located at 9 Oak Park Drive, Bedford, Massachusetts 01730 and our telephone number is (781) 457-5000. Our website is http://www.insulet.com. We do not incorporate the information on, or accessible through, our website into this prospectus, and you should not consider it part of this prospectus.
 
RISK FACTORS
 
Investing in our securities involves significant risks. Please see the risk factors under the heading “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2008 on file with the SEC, which are incorporated by reference in this prospectus. Before making an investment decision, you should carefully consider these risks as well as other information we include or incorporate by reference in this prospectus and any prospectus supplement. The risks and uncertainties we have described are not the only ones facing our company. Additional risks and uncertainties not presently known to us or that we currently deem immaterial may also affect our business operations.
 
CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS
 
This prospectus, any prospectus supplement and the documents we incorporate by reference in this prospectus contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including, without limitation, statements regarding our or our management’s expectations, hopes, beliefs, intentions or strategies regarding the future. We may, in some cases, use words such as “anticipate,” “believe,” “could,” “estimate,” “expect,” “intend,” “may,” “plan,” “project,” “should,” “will,” “would” or other words that convey uncertainty of future events or outcomes to identify these forward-looking statements. We intend these forward-looking statements to be covered by the safe harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995 and are including this statement for purposes of complying with those safe harbor provisions. Forward-looking statements in this prospectus may include, for example, statements about:
 
  •  our estimates regarding revenues, expenses, capital requirements and needs for additional financing;
 
  •  our manufacturing capacity in future periods;
 
  •  our ability to reduce the per unit production cost of the OmniPod;
 
  •  our ability to raise additional funds in the future;
 
  •  our research, development, commercialization, and other activities and projected expenditures;
 
  •  our ability to obtain regulatory approvals for any future products;
 
  •  our intellectual property position;
 
  •  our cash needs;
 
  •  our plans to pursue the use of the OmniPod System technology for the delivery of drugs other than insulin;
 
  •  the implementation of our business strategies, including our manufacturing strategies and the expansion of our sales and marketing efforts across the United States and internationally; and
 
  •  our financial performance.
 
The forward-looking statements contained in this prospectus are based on current expectations and beliefs concerning future developments and their potential effects on us. There can be no assurance that future developments affecting us will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond our control) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by these forward-looking statements. These risks and uncertainties include, but are not limited to, those factors described in the documents that we incorporate by reference in this prospectus, including the Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K we file with the SEC. Should one or more of these risks or uncertainties materialize, or should any of our assumptions prove incorrect, actual results may


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vary in material respects from those projected in these forward-looking statements. We undertake no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.
 
RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED DIVIDENDS
 
The following table sets forth the ratio of earnings to combined fixed charges and preferred dividends for the periods indicated below (in thousands). We have had no preferred shares outstanding since May 2007 and have not paid any dividends on preferred shares during the periods indicated.
 
                                         
    2004     2005     2006     2007     2008  
 
Deficiency of earnings to cover fixed charges
    (13,885 )     (21,636 )     (36,172 )     (54,249 )     (93,154 )
Ratio of earnings to fixed charges
    (1 )     (1 )     (1 )     (1 )     (1 )
 
 
(1) For purposes of computing this ratio of earnings to fixed charges, fixed charges consist of interest expense on long-term debt and capital leases, amortization of deferred financing costs and that portion of rental expense deemed to be representative of interest. Earnings consist of loss before income taxes plus fixed charges. Earnings were insufficient to cover fixed charges by $13.9 million in 2004, $21.6 million in 2005, $36.2 million in 2006, $54.2 million in 2007 and $93.2 million in 2008.
 
USE OF PROCEEDS
 
We will retain broad discretion over the use of the net proceeds from the sale of our securities offered hereby. Unless otherwise provided in the applicable prospectus supplement, we currently intend to use the net proceeds from the sale of the securities under this prospectus for general corporate purposes, including the expansion of our sales and marketing activities, funding of research and development and general and administrative expenses. We will set forth in a prospectus supplement relating to a specific offering our intended use for the net proceeds received from the sale of securities in that offering. Pending the application of the net proceeds, we intend to invest the net proceeds in short-term, investment-grade, interest-bearing securities. We cannot predict whether these investment will yield a favorable return.
 
THE SECURITIES WE MAY OFFER
 
The descriptions of the securities contained in this prospectus, together with the applicable prospectus supplements, summarize the material terms and provisions of the various types of securities that we may offer. We will describe in the applicable prospectus supplement relating to any securities the particular terms of the securities offered by that prospectus supplement. If we indicate in the applicable prospectus supplement, the terms of the securities may differ from the terms we have summarized below. We will also include in the prospectus supplement information, where applicable, about material U.S. federal income tax considerations relating to the securities, and the securities exchange, if any, on which the securities will be listed.
 
We may sell from time to time, in one or more offerings:
 
  •  common stock;
 
  •  preferred stock;
 
  •  warrants;
 
  •  units; and
 
  •  any combination of the foregoing securities.
 
In this prospectus, we will refer to the common stock, preferred stock, warrants and units collectively as “securities.” The total dollar amount of all securities that we may issue under this prospectus will not exceed $150,000,000.
 
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DESCRIPTION OF CAPITAL STOCK
 
The following description of our common stock and preferred stock, together with the additional information we include in any applicable prospectus supplements, summarizes the material terms and provisions of the common stock and preferred stock that we may offer under this prospectus. The following description of our capital stock does not purport to be complete and is subject to, and qualified in its entirety by, our Eighth Amended and Restated Certificate of Incorporation and our Amended and Restated By-Laws, which are exhibits to the registration statement of which this prospectus forms a part, and by applicable law. We refer in this section to our Eighth Amended and Restated Certificate of Incorporation as our certificate of incorporation, and we refer to our Amended and Restated By-Laws as our by-laws. The terms of our common stock and preferred stock may also be affected by Delaware law.
 
Authorized Capital Stock
 
Our authorized capital stock consists of 100,000,000 shares of our common stock, $0.001 par value per share, and 5,000,000 shares of undesignated preferred stock, $0.001 par value per share. As of March 20, 2009, we had 27,838,966 shares of common stock outstanding and no shares of preferred stock outstanding.
 
Common Stock
 
Voting
 
Holders of our common stock are entitled to one vote per share on matters to be voted on by stockholders and also are entitled to receive such dividends, if any, as may be declared from time to time by our board of directors in its discretion out of funds legally available therefor. Holders of our common stock have exclusive voting rights for the election of our directors and all other matters requiring stockholder action, except with respect to amendments to our certificate of incorporation that alter or change the powers, preferences, rights or other terms of any outstanding preferred stock if the holders of such affected series of preferred stock are entitled to vote on such an amendment.
 
Dividends
 
Holders of common stock are entitled to share ratably in any dividends declared by our board of directors, subject to any preferential dividend rights of any outstanding preferred stock. Dividends consisting of shares of common stock may be paid to holders of shares of common stock. We have never declared or paid cash dividends on our capital stock. We do not intend to pay cash dividends in the foreseeable future.
 
Liquidation and Dissolution
 
Upon our liquidation or dissolution, the holders of our common stock will be entitled to receive pro rata all assets remaining available for distribution to stockholders after payment of all liabilities and provision for the liquidation of any shares of preferred stock at the time outstanding.
 
Other Rights and Restrictions
 
Our common stock has no preemptive or other subscription rights, and there are no conversion rights or redemption or sinking fund provisions with respect to such stock. Our common stock is not subject to redemption by us. Our certificate of incorporation and bylaws do not restrict the ability of a holder of common stock to transfer the stockholder’s shares of common stock. When we issue shares of common stock under this prospectus, the shares will be fully paid and non-assessable and will not have, or be subject to, any preemptive or similar rights.
 
Listing
 
Our common stock is listed on The NASDAQ Global Market under the symbol “PODD.” On March 31, 2009, the last reported sale price for our common stock on The NASDAQ Global Market was $4.10 per share. As of March 20, 2009 we had approximately 49 stockholders of record.


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Transfer Agent and Registrar
 
The transfer agent and registrar for our common stock is Computershare Trust Company, N.A.
 
Preferred Stock
 
Our certificate of incorporation provides that our board of directors has the authority, without further action by the stockholders, to issue up to 5,000,000 shares of preferred stock, of which 40,000 are authorized for issuance of Series A Junior Participating Cumulative Preferred Stock, none of which are outstanding. Our board of directors may issue preferred stock in one ore more series and has the authority to fix the rights, preferences, privileges and restrictions of this preferred stock, including dividend rights, conversion rights, voting rights, terms of redemption, liquidation preferences, sinking fund terms and the number of shares constituting any series or the designation of a series, without further vote or action by the stockholders. The ability of our board of directors to issue preferred stock without stockholder approval could have the effect of delaying, deferring or preventing a change of control of us or the removal of existing management.
 
If we decide to issue any preferred stock pursuant to this prospectus, we will describe in a prospectus supplement the terms of the preferred stock, including, if applicable, the following:
 
  •  the title of the series and stated value;
 
  •  the number of shares of the series of preferred stock offered, the liquidation preference per share, if applicable, and the offering price;
 
  •  the applicable dividend rate(s) or amount(s), period(s) and payment date(s) or method(s) of calculation thereof;
 
  •  the date from which dividends on the preferred stock will accumulate, if applicable;
 
  •  any procedures for auction and remarketing;
 
  •  any provisions for a sinking fund;
 
  •  any applicable provision for redemption and the price or prices, terms and conditions on which preferred stock may be redeemed;
 
  •  any securities exchange listing;
 
  •  any voting rights and powers;
 
  •  whether interests in the preferred stock will be represented by depository shares;
 
  •  the terms and conditions, if applicable, of conversion into shares of our common stock, including the conversion price or rate or manner of calculation thereof;
 
  •  a discussion of any material U.S. federal income tax considerations;
 
  •  the relative ranking and preference as to dividend rights and rights upon our liquidation, dissolution or the winding up of our affairs;
 
  •  any limitations on issuance of any series of preferred stock ranking senior to or on a parity with such series of preferred stock as to dividend rights and rights upon our liquidation, dissolution or the winding up of our affairs; and
 
  •  any other specific terms, preferences, rights, limitations or restrictions of such series of preferred stock.
 
Certain Anti-Takeover Provisions of Delaware Law and our Certificate of Incorporation and Bylaws
 
We are subject to the provisions of Section 203 of the Delaware General Corporation Law, which generally has an anti-takeover effect for transactions not approved in advance by our board of directors, including discouraging attempts that might result in a premium over the market price for the shares of our common stock held by stockholders. In general, Section 203 prohibits a publicly held Delaware corporation


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from engaging in a “business combination” with an “interested stockholder” for a three-year period following the time that such stockholder becomes an interested stockholder, unless the business combination is approved in a prescribed manner. A “business combination” includes, among other things, a merger, asset or stock sale or other transaction resulting in a financial benefit to the interested stockholder. An “interested stockholder” is a person who, together with affiliates and associates, owns, or did own within three years prior to the determination of interested stockholder status, 15% or more of the corporation’s voting stock. Under Section 203, a business combination between a corporation and an interested stockholder is prohibited unless it satisfies one of the following conditions:
 
  •  before the stockholder became interested, the board of directors approved either the business combination or the transaction which resulted in the stockholder becoming an interested stockholder; or
 
  •  upon consummation of the transaction which resulted in the stockholder becoming an interested stockholder, the interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding for purposes of determining the voting stock outstanding, shares owned by:
 
  •  persons who are directors and also officers, and
 
  •  employee stock plans, in some instances; or
 
  •  at or after the time the stockholder became interested, the business combination was approved by the board of directors of the corporation and authorized at an annual or special meeting of the stockholders by the affirmative vote of at least two-thirds of the outstanding voting stock which is not owned by the interested stockholder.
 
Staggered Board of Directors
 
Our certificate of incorporation and by-laws provide that our board of directors be classified into three classes of directors of approximately equal size. As a result, in most circumstances, a person can gain control of our board only by successfully engaging in a proxy contest at two or more annual meetings.
 
Stockholder Action; Special Meeting of Stockholders
 
Our certificate of incorporation provides that our stockholders may not take any action by written consent, but only may take action at duly called annual or special meetings of stockholders. Our by-laws further provide that special meetings of our stockholders may be only called by our board of directors with a majority vote of our board of directors.
 
Stockholder Rights Plan; Series A Junior Participating Cumulative Preferred Stock
 
On November 14, 2008, our board of directors adopted a Stockholder Rights Plan, pursuant to which all stockholders of record as of the close of business on November 15, 2008 received rights to purchase shares of a newly-created series of preferred stock. Each right entitles the registered holder to purchase from us one ten-thousandth of a share of Series A Junior Participating Cumulative Preferred Stock, par value $0.001 per share, of the Company at an exercise price of $35.00 per right, subject to adjustment. Initially each right is attached to and trade with our common stock and is not currently exercisable. Each right will separate and become exercisable upon the earlier of (i) the close of business on the tenth calendar day following the first public announcement that a person or group of affiliated or associated persons has acquired beneficial ownership of 15% or more of the outstanding shares of our common stock (which includes for this purpose stock subject to a derivative transaction or an acquired derivative security), other than as a result of repurchases of stock by us or certain inadvertent actions by a shareholder or (ii) the close of business on the tenth business day (or such later day as our board of directors may determine) following the commencement of a tender offer or exchange offer that could result upon its consummation in a person or group becoming the beneficial owner of 15% or more of the outstanding shares of our common stock.


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If a person or group acquires 15% or more of our outstanding common stock, all right holders, except such person or group, will be entitled to acquire our common stock at a discount. In the event that we (i) consolidate with, or merge with and into, any other person, and we are not the continuing or surviving corporation, (ii) any person consolidates with us, or merges with and into us and we are the continuing or surviving corporation of such merger and, in connection with such merger, all or part of the shares of our common stock are changed into or exchanged for stock or other securities of any other person or cash or any other property or (iii) 50% or more of our assets or earning power is sold, mortgaged or otherwise transferred, each holder of a right will thereafter have the right to receive, upon exercise, common stock of the acquiring company having a market value equal to two times the exercise price of the right.
 
Until a right is exercised, the holder will have no rights as a stockholder of the Company (beyond those as an existing stockholder), including the right to vote or to receive dividends. While the distribution of the rights will not be taxable to stockholders or to us, stockholders may, depending upon the circumstances, recognize taxable income in the event that the rights become exercisable for units, other securities of ours, other consideration or for common stock of an acquiring company.
 
Our board of directors may terminate the Stockholder Rights Plan at any time, amend the Stockholder Rights Plan without the approval of any holders of the rights or redeem the rights prior to the time a person or group acquires 15% or more of our common stock. The rights are protected by customary anti-dilution provisions and will expire on November 15, 2018. The rights have certain anti-takeover effects and will cause substantial dilution to a person or group that attempts to acquire us on terms not approved by our board of directors.
 
Advance Notice Requirements for Stockholder Proposals and Director Nominations
 
Our by-laws provide that stockholders seeking to bring business before our annual meeting of stockholders, or to nominate candidates for election as directors at our annual meeting of stockholders, must provide timely notice of their intent in writing. To be timely, a stockholder’s notice needs to be delivered to our principal executive offices not later than the close of business on the 90th day nor earlier than the close of business on the 120th day prior to the first anniversary of the preceding year’s annual meeting of stockholders. For the first annual meeting of stockholders after the closing of our initial public offering, a stockholder’s notice shall be timely if delivered to our principal executive offices not later than the 90th day prior to the scheduled date of the annual meeting of stockholders or the 10th day following the day on which public announcement of the date of our annual meeting of stockholders is first made or sent by us. Our by-laws will also specify certain requirements as to the form and content of a stockholders’ meeting. These provisions may preclude our stockholders from bringing matters before our annual meeting of stockholders or from making nominations for directors at our annual meeting of stockholders.
 
Authorized But Unissued Shares
 
Our authorized but unissued shares of common stock and preferred stock are available for future issuances without stockholder approval and could be utilized for a variety of corporate purposes, including future offerings to raise additional capital, corporate acquisitions, employee benefit plans and stockholder rights plans. The existence of authorized but unissued and unreserved common stock and preferred stock could render more difficult or discourage an attempt to obtain control of us by means of a proxy contest, tender offer, merger or otherwise.
 
Removal of Directors
 
Our certificate of incorporation provides that a director on our board of directors may be removed from office only with cause and only by the affirmative vote of the holders of 75% or more of the shares then entitled to vote at an election of our directors.


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DESCRIPTION OF WARRANTS
 
The following description, together with the additional information we may include in any applicable prospectus supplements, summarizes the material terms and provisions of the warrants that we may offer under this prospectus and the related warrant agreements and warrant certificates. While the terms summarized below will apply generally to any warrants that we may offer, we will describe the particular terms of any series of warrants in more detail in the applicable prospectus supplement. If we indicate in the prospectus supplement, the terms of any warrants offered under that prospectus supplement may differ from the terms described below.
 
We will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from reports that we file with the SEC, the form of warrant agreement, including a form of warrant certificate, that describes the terms of the particular warrants we are offering before the issuance of the related warrants. The following summaries of material provisions of the warrants and the warrant agreements are subject to, and qualified in their entirety by reference to, all the provisions of the warrant agreement and warrant certificate applicable to the warrants that we may offer under this prospectus. We urge you to read the applicable prospectus supplements related to the warrants that we may offer under this prospectus, as well as any related free writing prospectuses, and the complete warrant agreements and warrant certificates that contain the terms of the warrants.
 
General
 
We may issue warrants for the purchase of common stock or preferred stock in one or more series. We may issue warrants independently or together with common stock and preferred stock, and the warrants may be attached to or separate from these securities.
 
We will evidence each series of warrants by warrant certificates that we will issue under a separate agreement. We may enter into a warrant agreement with a warrant agent. We will indicate the name and address and other information regarding the warrant agent in the applicable prospectus supplement relating to a particular series of warrants.
 
If we decide to issue warrants pursuant to this prospectus, we will specify in a prospectus supplement the terms of the series of warrants, including, if applicable, the following:
 
  •  the offering price and aggregate number of warrants offered;
 
  •  the designation and terms of the securities with which the warrants are issued and the number of warrants issued with each such security or each principal amount of such security;
 
  •  the date on and after which the warrants and the related securities will be separately transferable;
 
  •  in the case of warrants to purchase common stock, the number of shares of common stock purchasable upon the exercise of one warrant and the price at which these shares may be purchased upon such exercise;
 
  •  the effect of any merger, consolidation, sale or other disposition of our business on the warrant agreement and the warrants;
 
  •  the terms of any rights to redeem or call the warrants;
 
  •  any provisions for changes to or adjustments in the exercise price or number of securities issuable upon exercise of the warrants;
 
  •  the dates on which the right to exercise the warrants will commence and expire;
 
  •  the manner in which the warrant agreement and warrants may be modified;
 
  •  a discussion of any material U.S. federal income tax considerations of holding or exercising the warrants;
 
  •  the terms of the securities issuable upon exercise of the warrants; and


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  •  any other specific terms, preferences, rights or limitations of or restrictions on the warrants.
 
Before exercising their warrants, holders of warrants will not have any of the rights of holders of the securities purchasable upon such exercise, including, in the case of warrants to purchase common stock or preferred stock, the right to receive dividends, if any, or payments upon our liquidation, dissolution or winding up or to exercise voting rights, if any.
 
Exercise of Warrants
 
Each warrant will entitle the holder to purchase shares of our common stock at the exercise price that we describe in the applicable prospectus supplement. Holders of the warrants may exercise the warrants at any time up to the specified time on the expiration date that we set forth in the applicable prospectus supplement. After the close of business on the expiration date, unexercised warrants will become void.
 
Holders of the warrants may exercise the warrants by delivering the warrant certificate representing the warrants to be exercised together with specified information, and paying the required amount to the warrant agent in immediately available funds, as provided in the applicable prospectus supplement. If we so indicate in the applicable prospectus supplement, the warrants may also provide that they may be exercised on a “cashless” or net basis. We will set forth on the reverse side of the warrant certificate and in the applicable prospectus supplement the information that the holder of the warrant will be required to deliver to the warrant agent.
 
Upon receipt of the required payment and the warrant certificate properly completed and duly executed at the corporate trust office of the warrant agent or any other office indicated in the applicable prospectus supplement, we will issue and deliver the common stock purchasable upon such exercise. If fewer than all of the warrants represented by the warrant certificate are exercised, then we will issue a new warrant certificate for the remaining amount of warrants. If we so indicate in the applicable prospectus supplement, holders of the warrants may surrender shares of common stock as all or part of the exercise price for warrants.
 
Enforceability of Rights by Holders of Warrants
 
Each warrant agent will act solely as our agent under the applicable warrant agreement and will not assume any obligation or relationship of agency or trust with any holder of any warrant. A single bank or trust company may act as warrant agent for more than one issue of warrants. A warrant agent will have no duty or responsibility in case of any default by us under the applicable warrant agreement or warrant, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon us. Any holder of a warrant may, without the consent of the related warrant agent or the holder of any other warrant, enforce by appropriate legal action its right to exercise, and receive the securities purchasable upon exercise of, its warrants.
 
DESCRIPTION OF UNITS
 
The following description, together with the additional information that we include in any applicable prospectus supplements and in any related free writing prospectuses, summarizes the material terms and provisions of the units that we may offer under this prospectus. While the terms we have summarized below will apply generally to any units that we may offer under this prospectus, we will describe the particular terms of any series of units in more detail in the applicable prospectus supplement. The terms of any units offered under a prospectus supplement may differ from the terms described below.
 
We will file as exhibits to the registration statement of which this prospectus is a part, or will incorporate by reference from reports that we file with the SEC, the form of unit agreement that describes the terms of the series of units we are offering, and any supplemental agreements, before the issuance of the related series of units. The following summaries of material terms and provisions of the units are subject to, and qualified in their entirety by reference to, all the provisions of the unit agreement and any supplemental agreements applicable to a particular series of units. We urge you to read the applicable prospectus supplements related to the particular series of units that we may offer under this prospectus, as well as any related free writing


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prospectuses and the complete unit agreement and any supplemental agreements that contain the terms of the units.
 
General
 
We may issue units comprised of shares of common stock, shares of preferred stock and warrants in any combination. Each unit will be issued so that the holder of the unit is also the holder of each security included in the unit. Thus, the holder of a unit will have the rights and obligations of a holder of each included security. The unit agreement under which a unit is issued may provide that the securities included in the unit may not be held or transferred separately, at any time or at any time before a specified date.
 
We will describe in the applicable prospectus supplement the terms of the series of units, including:
 
  •  the designation and terms of the units, including whether and under what circumstances the securities comprising the units may be held or transferred separately;
 
  •  any provisions of the governing unit agreement that differ from those described below; and
 
  •  any provisions for the issuance, payment, settlement, transfer or exchange of the units or of the securities comprising the units.
 
The provisions described in this section, as well as those described under “Description of Capital Stock” and “Description of Warrants,” will apply to each unit and to the common stock, preferred stock and warrant included in each unit, respectively.
 
Issuance in Series
 
We may issue units in such amounts and in such numerous distinct series as we determine.
 
Enforceability of Rights by Holders of Units
 
Each unit agent will act solely as our agent under the applicable unit agreement and will not assume any obligation or relationship of agency or trust with any holder of any unit. A single bank or trust company may act as unit agent for more than one series of units. A unit agent will have no duty or responsibility in case of any default by us under the applicable unit agreement or unit, including any duty or responsibility to initiate any proceedings at law or otherwise, or to make any demand upon us. Any holder of a unit may, without the consent of the related unit agent or the holder of any other unit, enforce by appropriate legal action its rights as holder under any security included in the unit.
 
Title
 
We, the unit agent and any of its agents, may treat the registered holder of any unit certificate as an absolute owner of the units evidenced by that certificate for any purpose and as the person entitled to exercise the rights attaching to the units so requested, despite any notice to the contrary.


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PLAN OF DISTRIBUTION
 
We may sell the securities being offered hereby in one or more of the following methods from time to time:
 
  •  a block trade (which may involve crosses) in which the broker or dealer so engaged will attempt to sell the securities as agent but may position and resell a portion of the block as principal to facilitate the transaction;
 
  •  purchases by a broker or dealer as principal and resale by such broker or dealer for its own account pursuant to this prospectus;
 
  •  exchange distributions and/or secondary distributions;
 
  •  ordinary brokerage transactions and transactions in which the broker solicits purchasers;
 
  •  to one or more underwriters for resale to the public or to investors;
 
  •  in “at the market offerings,” within the meaning of Rule 415(a)(4) of the Securities Act, to or through a market maker or into an existing trading market, on an exchange or otherwise;
 
  •  transactions not involving market makers or established trading markets, including direct sales or privately negotiated transactions;
 
  •  transactions in options, swaps or other derivatives that may or may not be listed on an exchange; or
 
  •  through a combination of any of the foregoing.
 
The securities that we distribute by any of these methods may be sold, in one or more transactions, at:
 
  •  a fixed price or prices, which may be changed;
 
  •  market prices prevailing at the time of sale;
 
  •  prices related to prevailing market prices; or
 
  •  negotiated prices.
 
We will set forth in a prospectus supplement the terms of the offering of securities, including:
 
  •  the name or names of any agents or underwriters;
 
  •  the purchase price of the securities being offered and the proceeds we will receive from the sale;
 
  •  any over-allotment options under which underwriters may purchase additional securities from us;
 
  •  any agency fees or underwriting discounts and other items constituting agents’ or underwriters’ compensation;
 
  •  the public offering price;
 
  •  any discounts or concessions allowed or reallowed or paid to dealers; and
 
  •  any securities exchanges or markets on which such securities may be listed.
 
If underwriters are used in the sale, they will acquire the securities for their own account and may resell the securities from time to time in one or more transactions at a fixed public offering price or at varying prices determined at the time of sale. The obligations of the underwriters to purchase the securities will be subject to the conditions set forth in the applicable underwriting agreement. We may offer the securities to the public through underwriting syndicates represented by managing underwriters or by underwriters without a syndicate. Subject to certain conditions, the underwriters will be obligated to purchase all of the securities offered by the prospectus supplement, other than securities covered by any over-allotment option. Any public offering price and any discounts or concessions allowed or reallowed or paid to dealers may change from time to time. We may use underwriters with whom we have a material relationship. We will describe in the prospectus supplement the nature of any such relationship, naming the applicable underwriter.


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We may sell securities directly or through agents we designate from time to time. We will name any agent involved in the offering and sale of securities and we will describe any commissions we will pay the agent in the prospectus supplement. Unless the prospectus supplement states otherwise, our agent will act on a best-efforts basis for the period of its appointment.
 
We may also sell securities directly to one or more purchasers without using underwriters or agents.
 
Underwriters, dealers and agents that participate in the distribution of the securities may be underwriters as defined in the Securities Act and any discounts or commissions they receive from us and any profit on their resale of the securities may be treated as underwriting discounts and commissions under the Securities Act. We will identify in the applicable prospectus supplement any underwriters, dealers or agents and will describe their compensation. We may have agreements with the underwriters, dealers and agents to indemnify them against specified civil liabilities, including liabilities under the Securities Act. Underwriters, dealers and agents may engage in transactions with or perform services for us in the ordinary course of their businesses.
 
The warrants and the units that we may offer will be new issues of securities with no established trading market. Any underwriters may make a market in these securities, but will not be obligated to do so and may discontinue any market making at any time without notice. We cannot guarantee the liquidity of the trading markets for any securities.
 
Unless otherwise specified in the applicable prospectus supplement, each class or series of securities will be a new issue with no established trading market, other than our common stock, which is listed on The NASDAQ Global Market. We may elect to list any other class or series of securities on any exchange, but we are not obligated to do so. It is possible that one or more underwriters may make a market in a class or series of securities, but the underwriters will not be obligated to do so and may discontinue any market making at any time without notice. We cannot give any assurance as to the liquidity of the trading market for any of the securities.
 
In connection with an offering, an underwriter may purchase and sell securities in the open market. These transactions may include short sales, stabilizing transactions and purchases to cover positions created by short sales. Short sales involve the sale by the underwriters of a greater number of securities than they are required to purchase in the offering. “Covered” short sales are sales made in an amount not greater than the underwriters’ option to purchase additional securities, if any, from us in the offering. If the underwriters have an over-allotment option to purchase additional securities from us, the underwriters may close out any covered short position by either exercising their over-allotment option or purchasing securities in the open market. In determining the source of securities to close out the covered short position, the underwriters may consider, among other things, the price of securities available for purchase in the open market as compared to the price at which they may purchase securities through the over-allotment option. “Naked” short sales are any sales in excess of such option or where the underwriters do not have an over-allotment option. The underwriters must close out any naked short position by purchasing securities in the open market. A naked short position is more likely to be created if the underwriters are concerned that there may be downward pressure on the price of the securities in the open market after pricing that could adversely affect investors who purchase in the offering.
 
Accordingly, to cover these short sales positions or to otherwise stabilize or maintain the price of the securities, the underwriters may bid for or purchase securities in the open market and may impose penalty bids. If penalty bids are imposed, selling concessions allowed to syndicate members or other broker-dealers participating in the offering are reclaimed if securities previously distributed in the offering are repurchased, whether in connection with stabilization transactions or otherwise. The effect of these transactions may be to stabilize or maintain the market price of the securities at a level above that which might otherwise prevail in the open market. The impositions of a penalty bid may also affect the price of the securities to the extent that it discourages resale of the securities. The magnitude or effect of any stabilization or other transactions is uncertain. These transactions may be effected on The NASDAQ Global Market or otherwise and, if commenced, may be discontinued at any time.
 
In compliance with guidelines of the Financial Industry Regulatory Authority, or FINRA, the maximum consideration or discount to be received by any FINRA member or independent broker dealer may not exceed 8% of the aggregate amount of the securities offered pursuant to this prospectus and any applicable prospectus supplement.


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INCORPORATION OF DOCUMENTS BY REFERENCE
 
The Securities and Exchange Commission allows us to incorporate by reference the information that we file with them. Incorporation by reference means that we can disclose important information to you by referring you to other documents that are legally considered to be part of this prospectus and later information that we file with the Securities and Exchange Commission will automatically update and supersede the information in this prospectus, any supplement and the documents listed below. Our Securities and Exchange Commission file number is 000-1145197. We incorporate by reference the specific documents listed below.
 
  •  Annual Report on Form 10-K for the year ended December 31, 2008, which was filed on March 16, 2009;
 
  •  The description of our common stock contained in the Registration Statement on Form 8-A, which was filed on May 11, 2007, and all amendments and reports updating such description; and
 
  •  The description of our preferred stock purchase rights contained in the Registration Statement on Form 8-A, which was filed on November 20, 2008, and all amendments and reports updating such description.
 
All documents filed by us under Section 13(a), 13(c), 14 or 15(d) of the Exchange Act on or after the date of this prospectus until the date on which the registration statement containing this prospectus has been withdrawn shall also be deemed to be incorporated by reference in this prospectus and to be a part of this prospectus from the date of filing of those documents. Any statement contained in this prospectus or in a previously filed document incorporated or deemed to be incorporated by reference in this prospectus shall be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained in this prospectus or in any other subsequently filed document that also is or was deemed to be incorporated by reference in this prospectus modifies or supersedes that statement. Any statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus.
 
The information relating to us contained in this prospectus should be read together with the information in the documents incorporated by reference.
 
Upon oral or written request and at no cost to the requester, we will provide to any person, including a beneficial owner, to whom a prospectus is delivered, a copy of any or all of the information that has been incorporated by reference in this prospectus but not delivered with this prospectus. All requests should be made to: Insulet Corporation, 9 Oak Park Drive, Bedford, Massachusetts 01730, Attn: Secretary. Telephone requests may be directed to the Secretary at (781) 457-5000. You should rely only on the information incorporated by reference or provided in this prospectus. We have not authorized anyone to provide you with different information. You should not assume that the information in this prospectus or the documents incorporated by reference is accurate as of any date other than the date on the front of this prospectus or those documents.


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WHERE YOU CAN FIND MORE INFORMATION
 
We are subject to the informational requirements of the Exchange Act, and we are required to file reports and proxy statements and other information with the Securities and Exchange Commission. You may read and copy these reports, proxy statements and information at the Securities and Exchange Commission’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549. You may obtain information on the operation of the Public Reference Room by calling the Securities and Exchange Commission at 1-800-SEC-0330. The Securities and Exchange Commission maintains a web site that contains reports, proxy and information statements and other information regarding registrants, including Insulet Corporation, that file electronically with the Securities and Exchange Commission. You may access the Securities and Exchange Commission’s web site at http://www.sec.gov.
 
This prospectus is part of a registration statement that we filed with the SEC. The registration statement contains more information than this prospectus regarding us and the securities, including exhibits and schedules. You can obtain a copy of the registration statement from the SEC at any address listed above or from the SEC’s web site.
 
EXPERTS
 
Ernst & Young LLP, independent registered public accounting firm, has audited our consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2008, and the effectiveness of our internal control over financial reporting as of December 31, 2008, as set forth in their reports, which are incorporated by reference in this prospectus. Our financial statements are incorporated by reference in reliance on Ernst & Young LLP’s report, given on their authority as experts in accounting and auditing.
 
LEGAL MATTERS
 
Goodwin Procter LLP, Boston, Massachusetts has passed upon the validity of the securities offered by this prospectus. Any underwriters will also be advised about the validity of the securities and other legal matters by their own counsel, which will be named in the prospectus supplement.


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2,855,659 Shares
 
(INSULET LOGO)
 
Common Stock
 
September 30, 2009