Christopher R. Fenimore - 20 Aug 2021 Form 4/A - Amendment Insider Report for REGENERON PHARMACEUTICALS, INC. (REGN)

Role: SVP Controller
Signature: /s/ Christopher R. Fenimore
Issuer symbol: REGN
Transactions as of: 20 Aug 2021
Transactions value $: -$5,796,827
Form type: 4/A - Amendment
Filing time: 25 Aug 2021, 16:06:40
Date Of Original Report: 24 Aug 2021
Next filing: 10 Dec 2021
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	-$5.8M	-8.72K	-31.43%	$664.85	19K	20 Aug 2021	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	The amount of securities shown following the reported transaction gives effect to the other transactions reported by the Reporting Person in the Original Form 4.

Remarks:

This Form 4/A amends the Form 4 filed by the Reporting Person on August 24, 2021 (the "Original Form 4") by adding a transaction inadvertently omitted from the Original Form 4.