STOCK TITAN

Regeneron Pharmaceuticals (REGN) CFO exercises stock options

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

REGENERON PHARMACEUTICALS, INC. (REGN) reported that EVP Finance and CFO Christopher R. Fenimore exercised a non-qualified stock option for 6,283 shares of common stock on 2026-08-18 at an exercise price of $381.92 per share. The stock option award vested in four equal annual installments. In connection with the exercise, 4,599 shares of common stock were delivered or withheld at $813.47 per share for payment of the exercise price or tax liability. Following the transaction, Fenimore had 6,000 stock options remaining from this grant and held additional shares indirectly through a 401(k) plan and several trusts.

Positive

  • None.

Negative

  • None.
Insider Fenimore Christopher R.
Role EVP Finance CFO
Type Security Shares Price Value
Exercise Non-Qualified Stock Option (right to buy) F2 6,283 $0.00 $0.00
Exercise Common Stock 6,283 $381.92 $2.40M
Exercise Price or Tax Liability Common Stock 4,599 $813.47 $3.74M
holding Common Stock -- -- --
holding Common Stock F1 -- -- --
holding Common Stock -- -- --
holding Common Stock -- -- --
Holdings After Transaction: Non-Qualified Stock Option (right to buy) — 6,000 shares (Direct); Common Stock — 19,984 shares (Direct); Common Stock — 1,574 shares (Indirect, By 401(k) Plan); Common Stock — 1,897 shares (Indirect, By Trust); Common Stock — 25 shares (Indirect, by Trust for Daugh); Common Stock — 25 shares (Indirect, by Trust for Son)
Footnotes (2)
  1. F1. 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.
  2. F2. The stock option award vested in four equal annual installments, commencing one year after the date of grant.
Options exercised 6,283 shares Non-qualified stock option exercise on 2026-08-18
Option exercise price $381.92 per share Exercise price of non-qualified stock option
Shares delivered/withheld for exercise price or tax liability 4,599 shares Code F transaction on 2026-08-18 at $813.47 per share
Share price used for tax/exercise withholding $813.47 per share Price for shares delivered or withheld under code F
Remaining options from this award 6,000 options Non-qualified stock options following exercise, expiring 2026-12-16
Indirect shares by 401(k) plan 1,574 shares Indirect ownership reported as of 2026-08-18
Indirect shares by spouse’s trust 1,897 shares Held in a trust for benefit of spouse
Indirect shares by children’s trusts 25 shares each Two trusts, one for a daughter and one for a son
Non-Qualified Stock Option financial
"security_title: "Non-Qualified Stock Option (right to buy)""
A non-qualified stock option (NSO) is a contract that lets an employee or service provider buy company shares at a fixed price for a set period, like a voucher to purchase stock later at today’s price. It matters to investors because exercising NSOs creates ordinary income for the holder and can increase share count, affecting a company’s earnings and ownership mix; think of it as a future sale that can dilute existing shareholders and has immediate tax consequences for the recipient.
exercise or conversion of derivative security financial
"transaction_code_description: "Exercise or conversion of derivative security""
Payment of exercise price or tax liability financial
"transaction_code_description: "Payment of exercise price or tax liability by delivering or withholding""
indirect ownership financial
"ownership_type: "indirect" with nature of ownership by 401(k) plan and trusts"
trust financial
"These shares are held in a trust for the benefit of the reporting person's spouse"
A trust is a legal setup in which one party (the trustee) holds and manages assets—like cash, stocks or property—on behalf of other people (beneficiaries) according to instructions from the person who created it (the grantor). Think of it as a locked box with a keyholder who must follow written rules; for investors it matters because trusts influence who controls and benefits from assets, affect taxes and succession, and can change how quickly or transparently shares are bought, sold or voted.

FAQ

What did REGN executive Christopher R. Fenimore report in this Form 4?

Christopher R. Fenimore, EVP Finance and CFO of REGN, reported exercising a non-qualified stock option for 6,283 shares of common stock on 2026-08-18 and a related disposition of 4,599 shares delivered or withheld to pay the exercise price or tax liability.

How many Regeneron (REGN) options did the CFO exercise and at what price?

Fenimore exercised a non-qualified stock option covering 6,283 shares of Regeneron common stock at an exercise price of $381.92 per share. The award vested in four equal annual installments starting one year after the grant date.

How many REGN shares were withheld or delivered for taxes or exercise costs?

In connection with the option exercise, 4,599 shares of Regeneron common stock were delivered or withheld at $813.47 per share for payment of the exercise price or tax liability, as indicated by transaction code F.

What derivative position remains for the REGN CFO after this transaction?

After the reported option exercise, Fenimore had 6,000 non-qualified stock options remaining from this award, with an exercise price of $381.92 per share and an expiration date of 2026-12-16.

What indirect REGN share holdings does the CFO report?

Fenimore reports indirect ownership of Regeneron common stock including 1,574 shares by a 401(k) plan, 1,897 shares held in a trust for the benefit of his spouse, and 25 shares each in trusts for a daughter and a son.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google
Learn about SEC filing dates
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Fenimore Christopher R.

(Last)(First)(Middle)
777 OLD SAW MILL RIVER ROAD

(Street)
TARRYTOWN NEW YORK 10591

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
REGENERON PHARMACEUTICALS, INC. [ REGN ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
EVP Finance CFO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/18/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Common Stock08/18/2026M6,283A$381.9224,583D
Common Stock08/18/2026F4,599D$813.4719,984D
Common Stock1,574IBy 401(k) Plan
Common Stock1,897IBy Trust(1)
Common Stock25Iby Trust for Daugh
Common Stock25Iby Trust for Son
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Non-Qualified Stock Option (right to buy)$381.9208/18/2026M6,283 (2)12/16/2026Common Stock6,283$0.06,000D
Explanation of Responses:
1. 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.
2. The stock option award vested in four equal annual installments, commencing one year after the date of grant.
/s/ Christopher R. Fenimore08/20/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)