Septerna CLO granted 165,000 stock options

Septerna, Inc. reported that its Chief Legal Officer, Mark Andrew Wilson, received a grant of stock options on February 6, 2026.

Rhea-AI Filing Summary

Septerna, Inc. reported that its Chief Legal Officer, Mark Andrew Wilson, received a grant of stock options on February 6, 2026. The grant covers 165,000 stock options, each allowing the purchase of one share of Septerna common stock at an exercise price of $25.41 per share.

According to the vesting terms, 25% of the shares underlying the option will vest on January 5, 2027, with the remaining 75% vesting in thirty-six substantially equal monthly installments after that date, contingent on his continued service with the company.

Insider Trade Summary

Grant/Award: 165,000 shares

Grant/Award 1 txn

Insider Wilson Mark Andrew

Role Chief Legal Officer

Type	Security	Shares	Price	Value
Grant/Award	Stock Option (Right to Buy)	165,000	$0.00	$0.00

Holdings After Transaction: Stock Option (Right to Buy) — 165,000 contracts (Direct)

Footnotes (1)

1. F1. 25% of the shares underlying this option will vest on January 5, 2027, and the remaining 75% of the shares underlying this option will vest in thirty-six substantially equal monthly installments thereafter, subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did Septerna (SEPN) disclose for Mark Andrew Wilson?

Septerna disclosed that Chief Legal Officer Mark Andrew Wilson received a grant of 165,000 stock options on February 6, 2026. Each option allows him to buy one share of Septerna common stock at an exercise price of $25.41 per share, subject to vesting.

What is the size of the stock option grant to Septerna (SEPN) Chief Legal Officer?

The Chief Legal Officer of Septerna received a stock option grant covering 165,000 options. Each option is a right to buy one share of common stock at an exercise price of $25.41, with all 165,000 options reported as beneficially owned after the grant.

What are the vesting terms of the Feb. 6, 2026 stock options at Septerna (SEPN)?

The stock options granted on February 6, 2026 vest over time. 25% of the underlying shares vest on January 5, 2027, and the remaining 75% vest in thirty-six substantially equal monthly installments, conditioned on continued service with Septerna.

At what exercise price were the Septerna (SEPN) options granted to the Chief Legal Officer?

The options granted to Septerna’s Chief Legal Officer carry an exercise price of $25.41 per share. This means each of the 165,000 options gives the right to purchase one share of Septerna common stock at $25.41, once vested and exercisable.

How many derivative securities does the Septerna (SEPN) Chief Legal Officer hold after this Form 4 transaction?

After the reported transaction, the Chief Legal Officer beneficially owns 165,000 derivative securities in the form of stock options. These options represent rights to acquire Septerna common shares at the stated exercise price, subject to the vesting schedule described in the filing.

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

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Accepted by SEC EDGAR 02/10/2026 - 07:01 PM EST Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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^*

Wilson Mark Andrew

(Last) (First) (Middle)

C/O SEPTERNA, INC.

250 EAST GRAND AVENUE

(Street)

SOUTH SAN FRANCISCO CA 94080

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Septerna, Inc. [ SEPN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chief Legal Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/06/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	$25.41	02/06/2026		A		165,000		(1)	02/05/2036	Common Stock	165,000	$0	165,000	D

Explanation of Responses:

1. 25% of the shares underlying this option will vest on January 5, 2027, and the remaining 75% of the shares underlying this option will vest in thirty-six substantially equal monthly installments thereafter, subject to the Reporting Person's continuous service to the Issuer on each such vesting date.

	/s/ Mark A. Wilson	02/10/2026
	** Signature of Reporting Person	Date
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.