Randall J. Steward - Jan 31, 2022 Form 4 Insider Report for QUIDEL CORP /DE/ (QDEL)

Role: Chief Financial Officer
Signature: Robert J. Bujarski, attorney-in-fact for Randall J. Steward
Stock symbol: QDEL
Transactions as of: Jan 31, 2022
Transactions value $: -$60,369
Form type: 4
Date filed: 2/2/2022, 08:58 PM
Previous filing: Jan 19, 2022
Next filing: Feb 7, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	QDEL	Common Stock	Award	$0	+1.71K	+9.02%	$0.00	20.6K	Feb 1, 2022	Direct	F1
transaction	QDEL	Common Stock	Tax liability	-$60.4K	-590	-2.86%	$102.32	20K	Feb 1, 2022	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	QDEL	Restricted Stock Units	Award	$0	+14.5K		$0.00	14.5K	Jan 31, 2022	Common Stock	14.5K		Direct	F3, F4
transaction	QDEL	Restricted Stock Units (Converted)	Award	$0	+1.13K		$0.00	1.13K	Jan 31, 2022	Common Stock	1.13K		Direct	F3, F5, F6
transaction	QDEL	Restricted Stock Units (Premium)	Award	$0	+226		$0.00	226	Jan 31, 2022	Common Stock	226		Direct	F3, F5, F7
transaction	QDEL	Restricted Stock Units	Options Exercise	$0	-1.71K	-33.33%	$0.00	3.41K	Feb 1, 2022	Common Stock	1.71K		Direct	F3, F8

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Reflects release of restricted stock units that were previously reported on a Form 4.
F2	Disposition of shares, as set forth above, was in connection with the Issuer's withholding of common shares to satisfy tax withholding obligations related to the issuance of common shares upon release of restricted stock units.
F3	Each restricted stock unit represents the right to receive one (1) share of Quidel Corporation common stock.
F4	4,837 shares vest on the first anniversary date of the grant date, January 31, 2023; 4,837 shares vest on the second anniversary date of the grant date, January 31, 2024; and 4,838 shares vest on the third anniversary date of the grant date, January 31, 2025.
F5	The restricted stock units were received in lieu of cash payments to the reporting person under a deferred compensation program applicable to participating employees. Vested restricted stock units may be deferred, in which case, payment will occur according to the elected deferral schedule.
F6	The restricted stock units vest on January 31, 2022.
F7	The restricted stock units vest on January 31, 2023.
F8	One-third of the shares subject to the original grant vest annually over a three-year period, commencing on the first anniversary date of the grant date.