[Form 4] Septerna, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Director Alan Ezekowitz of Septerna received a stock option grant on June 17, 2025, representing a significant insider transaction. Key details include:

• Granted 16,623 stock options to purchase common stock at an exercise price of $10.24 per share
• Options will vest in full upon the earlier of:
  • June 17, 2026
  • The company's next annual stockholders meeting
• Options expire on June 16, 2035
• Vesting is contingent on continued service with the company

This equity compensation grant aligns with standard director compensation practices and serves to align the director's interests with those of shareholders. The filing was executed by Jeffrey Finer as attorney-in-fact on June 20, 2025.

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^*

Ezekowitz Alan

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
06/17/2025

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)	$10.24	06/17/2025		A		16,623		(1)	06/16/2035	Common Stock	16,623	$0	16,623	D

Explanation of Responses:

1. The shares underlying the stock option will vest in full upon the earlier of (i) June 17, 2026 or (ii) the Issuer's next annual meeting of stockholders, subject to the Reporting Person's continued service to the Issuer through such vesting date.

	/s/ Jeffrey Finer, Attorney-in-Fact	06/20/2025
	** 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.

FAQ

How many stock options did SEPN director Alan Ezekowitz receive on June 17, 2025?

Alan Ezekowitz received 16,623 stock options (Right to Buy) of SEPN common stock with an exercise price of $10.24 per share on June 17, 2025.

What is the vesting schedule for SEPN director Ezekowitz's stock options granted in June 2025?

The stock options will vest in full upon the earlier of (i) June 17, 2026 or (ii) SEPN's next annual meeting of stockholders, subject to Ezekowitz's continued service to the company through the vesting date.

When do Alan Ezekowitz's SEPN stock options expire?

The stock options granted to Alan Ezekowitz expire on June 16, 2035, ten years after the grant date.

What is Alan Ezekowitz's role at SEPN according to the Form 4 filing?

According to the Form 4 filing, Alan Ezekowitz serves as a Director of Septerna, Inc. (SEPN). This is indicated by the 'X' marked in the Director box under the relationship section.

What was the exercise price of SEPN stock options granted to Ezekowitz in June 2025?

The exercise price (conversion price) of the stock options granted to Alan Ezekowitz was $10.24 per share.