Jason Pitofsky - 05 Dec 2025 Form 4 Insider Report for REGENERON PHARMACEUTICALS, INC. (REGN)

Signature
/s/ Jason Pitofsky
Issuer symbol
REGN
Transactions as of
05 Dec 2025
Net transactions value
-$705,098
Form type
4
Filing time
09 Dec 2025, 17:38:25 UTC
Previous filing
10 Nov 2025
Next filing
11 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Pitofsky Jason VP Controller 777 OLD SAW MILL RIVER ROAD, TARRYTOWN /s/ Jason Pitofsky 09 Dec 2025 0002009236

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction REGN Common Stock Award $0 +2,064 +49% $0.000000 6,297 05 Dec 2025 Direct F1
transaction REGN Common Stock Tax liability $705,098 -989 -16% $712.94 5,308 08 Dec 2025 Direct
holding REGN Common Stock 31 05 Dec 2025 By 401(k) Plan
holding REGN Common Stock 179 05 Dec 2025 by Spouse

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 +2,261 $0.000000 2,261 05 Dec 2025 Common Stock 2,261 $726.71 Direct F2
* 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 5, 2027 and 50% on December 5, 2029.
F2 The stock option award vests in four equal annual installments, commencing one year after the date of grant.