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 * Dammeyer Rodney F   2. Issuer Name and Ticker or Trading Symbol QUIDEL CORP /DE/ [QDEL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 12544 HIGH BLUFF DRIVE, SUITE 200 3. Date of Earliest Transaction (Month/Day/Year) 05/04/2015 (Street) SAN DIEGO, CA 92130 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 05/04/2015   M   417 (1) A $ 0 4,323 (2) D   Common Stock 05/04/2015   G   4,323 (2) D $ 0 0 D   Common Stock 05/04/2015   G   4,323 (2) A $ 0 39,015 I By Family Trust

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 (Converted)

(3)

05/05/2015

A

2,412

(4)

(5)

Common Stock

2,412

$ 0

2,412

D

Restricted Stock Units (Premium)

(3)

05/05/2015

A

482

05/05/2016

(5)

Common Stock

482

$ 0

482

D

Restricted Stock Units (Equity Grant)

(3)

05/05/2015

A

962

05/05/2016

(6)

Common Stock

962

$ 0

962

D

Non-Qualified Stock Option

$ 22.86

05/05/2015

A

7,021

05/05/2016

05/05/2025

Common Stock

7,021

$ 0

7,021

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Dammeyer Rodney F 12544 HIGH BLUFF DRIVE, SUITE 200 SAN DIEGO, CA 92130	X

Signatures

Robert J. Bujarski, attorney-in-fact for Rodney F. Dammeyer		05/06/2015
**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)	Reflects vesting of prior restricted units, which were previously reported on a Form 4.
(2)	These shares were gifted by the Reporting Person to the Reporting Person's Dammeyer Family Trust. The Reporting Person disclaims all beneficial ownership of the shares owned by the Dammeyer Family Trust, except to the extent of his pecuniary interest, if any, and the inclusion of these shares in this report should not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose.
(3)	Each restricted stock unit represents the right to receive one share of Quidel Corporation common stock.
(4)	The restricted stock units vest on the date of grant, May 5, 2015.
(5)	The restricted stock units were received in lieu of cash payments to the reporting person for certain retainer and Board of Director service-related fees under a deferred compensation program applicable to participating non-employee directors.
(6)	The restricted stock units vest upon the earlier of (i) immediately prior to the annual meeting of Quidel Corporation's stockholders in 2016 or (b) on the first anniversary of the grant date or May 5, 2016. The restricted stock units vest upon the earlier of (i) immediately prior to the annual meeting of Quidel Corporation's stockholders in 2016 or (b) on the first anniversary of the grant date or May 5, 2016.

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