GEORGE YANCOPOULOS - 11 Dec 2023 Form 4 Insider Report for REGENERON PHARMACEUTICALS, INC. (REGN)

Signature
/s/**George D. Yancopoulos
Issuer symbol
REGN
Transactions as of
11 Dec 2023
Net transactions value
-$10,838,960
Form type
4
Filing time
13 Dec 2023, 16:05:43 UTC
Previous filing
27 Mar 2023
Next filing
04 Jan 2024

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction REGN Common Stock Options Exercise +25,155 +3.4% 765,327 11 Dec 2023 Direct F1
transaction REGN Common Stock Tax liability $10,838,960 -12,841 -1.7% $844.09 752,486 11 Dec 2023 Direct
holding REGN Common Stock 5,889 11 Dec 2023 By 401(k) Plan
holding REGN Common Stock 196,848 11 Dec 2023 By Trust for Chldn. F2
holding REGN Common Stock 121,071 11 Dec 2023 by 2022 GRAT I
holding REGN Common Stock 158,410 11 Dec 2023 by 2022 GRAT II

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 2019 Performance Stock Units Options Exercise -25,155 -100% 0 11 Dec 2023 Common Stock 25,155 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On December 11, 2019, the reporting person was granted performance-based restricted stock units ("PSUs") representing the contingent right to receive shares of the issuer's common stock based upon the achievement of certain performance metrics related to total shareholder return ("TSR") over the applicable vesting period. On December 11, 2023, 25,155 PSUs (or the maximum number of PSUs eligible for vesting) vested in full and were automatically settled into an equal number of shares of the issuer's common stock based upon achievement of 75% cumulative TSR over the four-year performance period then ended.
F2 As investment trustee of trusts for the benefit of the reporting person's children.