QuidelOrtho Form 4 QUIDEL / CHARLES P SLACIK ownership change

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

SLACIK CHARLES P

(Last) (First) (Middle)

9975 SUMMERS RIDGE ROAD

(Street)

SAN DIEGO CA 92121

(City) (State) (Zip)

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)

3. Date of Earliest Transaction (Month/Day/Year)
05/12/2021

4. If Amendment, Date of 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

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	05/12/2021		M		1,040(1)	A	$0.00	12,255	D
Common Stock	05/12/2021		M		191(1)	A	$0.00	12,446	D
Common Stock	05/12/2021		M		19(1)	A	$0.00	12,465	D
Common Stock	05/13/2021		S		1,000	D	$113.258(2)	11,465	D
Common Stock	05/14/2021		M		612(1)	A	$0.00(1)	12,077	D
Common Stock	05/14/2021		M		122(1)	A	$0.00(1)	12,199	D

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 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: 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	(3)	05/12/2021		M			1,040	05/12/2021	05/12/2021	Common Stock	1,040	$0.00	0	D
Restricted Stock Units (Converted)	(3)	05/12/2021		M			191	(4)	(4)	Common Stock	191	$0.00	0	D
Restricted Stock Units (Premium)	(3)	05/12/2021		M			19	(4)	(4)	Common Stock	19	$0.00	0	D
Restricted Stock Units (Converted)	(3)	05/14/2021		M			612	(4)	(4)	Common Stock	612	$0.00	0	D
Restricted Stock Units (Premium)	(3)	05/14/2021		M			122	(4)	(4)	Common Stock	122	$0.00	0	D

Explanation of Responses:

1. Reflects release of restricted stock units that were previously reported on Form 4.

2. The weighted average sale price for these transactions was $113.258 per share, with a range of $112.62 to $120.00. Upon request, the Reporting Person hereby undertakes to provide to staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder, the full information regarding the number of shares sold at each separate price.

3. Restricted stock units convert into common stock on a one-for-one basis.

4. Shares vested and released on the transaction date pursuant to Issuer's deferred compensation plan.

Remarks:

	Robert J. Bujarski, attorney-in-fact for Charles P. Slacik	05/14/2021
	** 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).
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