Marc Tessier-Lavigne - Dec 9, 2021 Form 4 Insider Report for REGENERON PHARMACEUTICALS, INC. (REGN)

Role: Director
Signature: /s/**Marc Tessier-Lavigne
Stock symbol: REGN
Transactions as of: Dec 9, 2021
Transactions value $: -$1,110,982
Form type: 4
Date filed: 12/10/2021, 04:41 PM
Previous filing: Sep 15, 2021
Next filing: Dec 30, 2021

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	REGN	Common Stock	Options Exercise	$1.41M	+3.78K	+182.1%	$371.40	5.86K	Dec 9, 2021	Direct	F1
transaction	REGN	Common Stock	Sale	-$2.52M	-3.78K	-64.55%	$665.00	2.08K	Dec 9, 2021	Direct	F1

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	REGN	Non-Qualified Stock Option (right to buy)	Options Exercise	$0	-3.78K	-100%	$0.00^*	0	Dec 9, 2021	Common Stock	3.78K	$371.40	Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	Disposition/acquisition made pursuant to a plan intended to comply with Rule 10b5-1(c).
F2	On the date of the Issuer's first annual meeting of shareholders following the date of grant, a portion of these stock options equal to the portion of one year that had passed from the date of grant became exercisable, and the remainder became exercisable on the first anniversary of the date of grant.