Statement of Changes in Beneficial Ownership (4)

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	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * POLAN MARY LAKE PH D	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 (MM/DD/YYYY) 5/17/2016
(Street) SAN DIEGO, CA 92130 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _ X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		7. Title and Amount of Securities Underlying Derivative Security (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)	(1)	5/17/2016		A		2550   (2)		(2) (3)	(2) (3)	Common Stock	2550	$0.00	2550	D
Restricted Stock Units (Premium)	(1)	5/17/2016		A		765   (2)		(2) (4)	(2) (4)	Common Stock	765	$0.00	765	D
Restricted Stock Units (Equity Grant)	(1)	5/17/2016		A		962		(4)	(4)	Common Stock	962	$0.00	962	D
Non-Qualified Stock Option	$15.74	5/17/2016		A		7021		5/17/2017	5/17/2026	Common Stock	7021	$0.00	7021	D

Explanation of Responses:
( 1)	Each restricted stock unit represents the right to receive one share of Quidel Corporation common stock.
( 2)	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. Vested restricted stock units may be deferred, in which case, payment will occur according to the elected deferral schedule.
( 3)	The restricted stock units vest on the date of grant, May 17, 2016.
( 4)	The restricted stock units vest on May 17, 2017.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
POLAN MARY LAKE PH D 12544 HIGH BLUFF DRIVE, SUITE 200 SAN DIEGO, CA 92130	X

Signatures
Robert J. Bujarski, attorney-in-fact for Mary Lake Polan, Ph.D.		5/19/2016
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	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).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.