Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
Herdiech Edward K.
  2. Issuer Name and Ticker or Trading Symbol
LogMeIn, Inc. [LOGM]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Chief Financial Officer
(Last)
(First)
(Middle)
C/O LOGMEIN, INC., 320 SUMMER STREET
3. Date of Earliest Transaction (Month/Day/Year)
05/21/2018
(Street)

BOSTON, MA 02210
4. If Amendment, Date Original Filed(Month/Day/Year)
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)
7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 05/21/2018 05/21/2018 M   926 A (1) 5,317 D  
Common Stock 05/21/2018 05/21/2018 M   16,665 A (2) 21,982 D  
Common Stock 05/22/2018 05/22/2018 S   15,191 (3) D $ 110.6988 (4) 6,791 D  
Common Stock 05/22/2018 05/22/2018 S   2,400 (3) D $ 111.3154 (5) 4,391 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)
6. Date Exercisable and Expiration Date
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)
10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)
11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Restricted Stock Units (1) 05/21/2018 05/21/2018 F     741   (6)   (6) Common Stock 741 (7) 926 D  
Restricted Stock Units (1) 05/21/2018 05/21/2018 M     926   (6)   (6) Common Stock 926 (8) 0 D  
Performance RSUs (2) 05/21/2018 05/21/2018 F     13,335   (9)   (9) Common Stock 13,335 (7) 16,665 D  
Performance RSUs (2) 05/21/2018 05/21/2018 M     16,665   (9)   (9) Common Stock 16,665 (8) 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Herdiech Edward K.
C/O LOGMEIN, INC.
320 SUMMER STREET
BOSTON, MA 02210
      Chief Financial Officer  

Signatures

 Michael J. Donahue, Attorney-in-fact   05/23/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
(2) Each Performance RSU represents a contingent right to receive one share of the Issuer's common stock.
(3) Sales made pursuant to a 10(b)5-1 plan adopted by the Reporting Person in accordance with Rule 10(b)5-1 of the Securities Exchange Act of 1934, as amended.
(4) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $110.25 to $111.20, inclusive. Upon the request of any security holder of the Issuer, or the staff of the Securities and Exchange Commission, full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4 shall be provided.
(5) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $111.25 to $111.40, inclusive. Upon the request of any security holder of the Issuer, or the staff of the Securities and Exchange Commission, full information regarding the number of shares sold at each separate price within the ranges set forth in this Form 4 shall be provided.
(6) The restricted stock units vested in three equal installments over a three-year period commencing on the first anniversary of the date of grant so that 100% of the restricted stock units vested as of May 21, 2018. These restricted stock units also provided for accelerated vesting in the event that the Reporting Person's employment was terminated in connection with an acquisition of the Issuer.
(7) The shares of common stock underlying the restricted stock units reported as disposed herein were retained (but not issued) by the Issuer in satisfaction of tax withholding obligations associated with the vesting of such units.
(8) The restricted stock units reported as disposed herein were settled for shares of the Issuer's common stock.
(9) The vesting of these performance-based RSUs was tied to the Issuer's achievement of a total shareholder return, or TSR, performance goal, which was measured over a three-year performance period from May 1, 2015 to May 1, 2018, versus the TSR realized for the same period by the Russell 2000 Index. Based on the Issuer's TSR performance during this period, the shares awarded to the Reporting Person vested at 200% of the target amount.

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