Christopher R. Fenimore - Dec 8, 2023 Form 4 Insider Report for REGENERON PHARMACEUTICALS, INC. (REGN)

Role: SVP Controller
Signature: /s/**Christopher R. Fenimore
Stock symbol: REGN
Transactions as of: Dec 8, 2023
Transactions value $: -$1,696,479
Form type: 4
Date filed: 12/12/2023, 04:01 PM
Previous filing: Aug 25, 2023
Next filing: Dec 14, 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	REGN	Common Stock	Tax liability	-$400K	-474	-2.26%	$843.79	20.5K	Dec 8, 2023	Direct
transaction	REGN	Common Stock	Award	$0	+2.37K	+11.58%	$0.00	22.8K	Dec 8, 2023	Direct	F1
transaction	REGN	Common Stock	Tax liability	-$1.08M	-1.28K	-5.59%	$844.09	21.6K	Dec 11, 2023	Direct
transaction	REGN	Common Stock	Tax liability	-$219K	-260	-1.21%	$844.09	21.3K	Dec 11, 2023	Direct
holding	REGN	Common Stock						1.47K	Dec 8, 2023	2021 GRAT
holding	REGN	Common Stock						4.27K	Dec 8, 2023	2022 GRAT
holding	REGN	Common Stock						1.5K	Dec 8, 2023	By 401(k) Plan
holding	REGN	Common Stock						1.9K	Dec 8, 2023	By Trust	F2
holding	REGN	Common Stock						461	Dec 8, 2023	by Trust for Daugh
holding	REGN	Common Stock						460	Dec 8, 2023	by Trust for Son

Showing 1 to 10 of 10 entries

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)	Award	$0	+8.5K		$0.00	8.5K	Dec 8, 2023	Common Stock	8.5K	$843.79	Direct	F3

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

Explanation of Responses:

Id	Content
F1	Award of Restricted Stock under the Second Amended and Restated 2014 Long-Term Incentive Plan that vests 50% on December 8, 2025 and 50% on December 8, 2027.
F2	These shares are held in a trust for the benefit of the reporting person's spouse. The reporting person and the reporting person's spouse are trustees of the trust.
F3	The stock option award vests in four equal annual installments, commencing one year after the date of grant.