STOCK TITAN

Regeneron (REGN) director Zoghbi exercises 800 options and sells 800 shares

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

REGENERON PHARMACEUTICALS, INC. director Huda Y. Zoghbi reported an option exercise-and-sale on August 10, 2026. She exercised 800 Non‑Qualified Stock Options for 800 shares of Common Stock at an exercise price of $376.6900 per share, fully exhausting this option grant, and then sold the 800 acquired shares. All transactions were made under a Rule 10b5‑1(c) trading plan adopted on November 20, 2025.

Positive

  • None.

Negative

  • None.
Insider Zoghbi Huda Y
Role Director
Sold 800 shs ($640K)
Approx. gross sale proceeds $640K
Approx. exercise cost $301K
Approx. pre-tax spread $339K
Type Security Shares Price Value
Exercise Non-Qualified Stock Option (right to buy) F1, F2 800 $0.00 $0.00
Exercise Common Stock F1 800 $376.69 $301K
Sale Common Stock F1 800 $800.00 $640K
Holdings After Transaction: Non-Qualified Stock Option (right to buy) — 0 shares (Direct); Common Stock — 1,703 shares (Direct)
Footnotes (2)
  1. F1. Disposition/acquisition made pursuant to a plan intended to comply with Rule 10b5-1(c) adopted on November 20, 2025.
  2. F2. The stock option vested in three equal annual installments, commencing one year after the date of grant.
Options exercised 800 shares Non-Qualified Stock Options exercised into Common Stock on August 10, 2026
Exercise price $376.6900 per share Exercise price of Non-Qualified Stock Option grant
Shares sold 800 shares Common Stock sale on August 10, 2026 following option exercise
Options remaining from grant 0.0000 Non-Qualified Stock Option position after the reported exercise
Option expiration date 2027-01-03 Expiration date of the exercised Non-Qualified Stock Option grant
10b5-1 plan adoption date November 20, 2025 Rule 10b5-1(c) trading plan governing the reported transactions
Non-Qualified Stock Option financial
"Security titled "Non-Qualified Stock Option (right to buy)" was exercised for 800 shares"
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.
Rule 10b5-1(c) regulatory
"Disposition/acquisition made pursuant to a plan intended to comply with Rule 10b5-1(c)"
Rule 10b5-1(c) is an SEC guideline that lets company insiders set up a written, pre-planned schedule to buy or sell their company stock when they are not in possession of material, nonpublic information. For investors, it matters because such plans can reduce the appearance of insider trading by separating decisions from inside knowledge—like putting your trades on autopilot—while also requiring scrutiny since pre-planned trades can still affect market confidence and share value.
Exercise or conversion of derivative security financial
"Transaction code M described as "Exercise or conversion of derivative security""

FAQ

What insider transaction did REGN director Huda Y. Zoghbi report on August 10, 2026?

On August 10, 2026, director Huda Y. Zoghbi exercised 800 stock options for 800 shares of Regeneron Common Stock and sold 800 shares in a related transaction reported on Form 4.

At what price were Huda Y. Zoghbi’s REGN options exercised on August 10, 2026?

The Non‑Qualified Stock Options were exercised at an exercise price of $376.6900 per share. This exercise converted 800 options into 800 shares of Common Stock before a same‑day sale of those shares was reported.

Were Huda Y. Zoghbi’s August 2026 REGN trades made under a Rule 10b5-1 plan?

Yes. The filing states the disposition and acquisition were made pursuant to a Rule 10b5‑1(c) trading plan adopted on November 20, 2025, indicating the transactions were pre‑planned.

How many Regeneron shares did Huda Y. Zoghbi sell according to this Form 4?

The Form 4 reports that Huda Y. Zoghbi sold 800 shares of Regeneron Common Stock on August 10, 2026, following the exercise of an equal number of Non‑Qualified Stock Options into Common Stock.

What happened to Huda Y. Zoghbi’s Regeneron stock option grant after the August 2026 exercise?

After exercising 800 Non‑Qualified Stock Options, the filing shows 0.0000 options remaining from that grant. The option, which vested in three equal annual installments, had an expiration date of January 3, 2027.

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).
X
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*
Zoghbi Huda Y

(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)
XDirector10% Owner
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/10/2026
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 Stock08/10/2026M(1)800A$376.692,503D
Common Stock08/10/2026S(1)800D$8001,703D
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)$376.6908/10/2026M(1)800 (2)01/03/2027Common Stock800$0.00D
Explanation of Responses:
1. Disposition/acquisition made pursuant to a plan intended to comply with Rule 10b5-1(c) adopted on November 20, 2025.
2. The stock option vested in three equal annual installments, commencing one year after the date of grant.
/s/ Huda Y. Zoghbi08/12/2026
** 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)