Werner Kroll - Jul 1, 2021 Form 4 Insider Report for QUIDEL CORP /DE/ (QDEL)

Role: SVP, R&D
Signature: Phillip S. Askim, attorney-in-fact for Werner Kroll
Stock symbol: QDEL
Transactions as of: Jul 1, 2021
Transactions value $: -$65,072
Form type: 4
Date filed: 7/2/2021, 06:08 PM
Previous filing: Jun 1, 2021
Next filing: Jul 30, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	QDEL	Common Stock	Options Exercise	$0	+982	+9.58%	$0.00	11.2K	Jul 1, 2021	Direct	F1
transaction	QDEL	Common Stock	Tax liability	-$65.1K	-506	-4.51%	$128.60^*	10.7K	Jul 1, 2021	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	Options Exercise	$0	-982	-50%	$0.00	982	Jul 1, 2021	Common Stock	982		Direct	F3, F4

* 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 share upon release of restricted stock units.
F3	Restricted stock units convert into common stock on a one-for-one basis.
F4	Award of time-based restricted stock with the following vesting: 982 shares vested on the first anniversary date of the grant date, July 1, 2021; 981 shares will vest on the second anniversary date of the grant date, July 1, 2022; 981 shares will vest on the third anniversary date of the grant date, July 1, 2023.