George L. Sing - Dec 31, 2024 Form 4 Insider Report for REGENERON PHARMACEUTICALS, INC. (REGN)

Role: Director
Signature: /s/ George L. Sing
Stock symbol: REGN
Transactions as of: Dec 31, 2024
Transactions value $: $141
Form type: 4
Date filed: 1/3/2025, 04:02 PM
Previous filing: Sep 5, 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	REGN	Common Stock	Options Exercise	$1.38M	+3.34K	+12.71%	$413.33	29.6K	Dec 31, 2024	Direct
transaction	REGN	Common Stock	Tax liability	-$1.38M	-1.95K	-6.58%	$708.19	27.7K	Dec 31, 2024	Direct
transaction	REGN	Common Stock	Award	$0	+166	+0.6%	$0.00	27.8K	Jan 2, 2025	Direct	F1
holding	REGN	Common Stock						750	Dec 31, 2024	by Spouse
holding	REGN	Common Stock						400	Dec 31, 2024	by Spouse/Cust Son
holding	REGN	Common Stock						1K	Dec 31, 2024	by Trust for Son

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	-3.34K	-100%	$0.00	0	Dec 31, 2024	Common Stock	3.34K	$413.33	Direct	F2
transaction	REGN	Non-Qualified Stock Option (right to buy)	Award	$0	+1.96K		$0.00	1.96K	Jan 2, 2025	Common Stock	1.96K	$719.37	Direct	F3

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

Explanation of Responses:

Id	Content
F1	Reflects an acquisition of time-based vesting restricted stock units each representing a contingent right to receive one share of the Issuer's common stock.
F2	The stock option vested in three equal annual installments, commencing one year after the date of grant.
F3	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 has passed from the date of grant shall then become exercisable, and the remainder shall become exercisable on the first anniversary of the date of grant.