Daniel D. Long - 07 Aug 2025 Form 4 Insider Report for Septerna, Inc. (SEPN)

Reporting relationship: SVP, Drug Discovery
Issuer ticker: SEPN
Reported as of: 07 Aug 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 11 Aug 2025, 19:03:34 UTC
Prior SEC filing: 24 Oct 2024
Next SEC filing: 13 Nov 2025
Source filing: View source filing
Reporting owner signature: /s/ Ran Xiao, Attorney-in-Fact

Key filing fact

Daniel D. Long filed Form 4 for Septerna, Inc. (SEPN) on 11 Aug 2025.

Key facts

This page summarizes Daniel D. Long's Form 4 filing for Septerna, Inc. (SEPN).
1 reported transaction and 1 derivative row are listed below.
Accepted by SEC: 11 Aug 2025, 19:03.

Change

Previous filing in this sequence was filed on 24 Oct 2024.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002040349 Primary reporting owner

Long Daniel D.

Relationship: SVP, Drug Discovery
Address: C/O SEPTERNA, INC., 250 EAST GRAND AVENUE, SOUTH SAN FRANCISCO
Signature: /s/ Ran Xiao, Attorney-in-Fact
Signature date: 11 Aug 2025

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

SEPN transaction Derivative

Stock Option (Right to Buy)

Award

Transaction value: $0
Shares: +30,000
Change %
Price: $0.000000
Shares after: 30,000
Date: 07 Aug 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 30,000
Exercise price: $11.70
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

1/48th of the shares subject to such option shall vest and become exercisable in substantially equal monthly installments on each monthly anniversary of August 1, 2025, subject to the Reporting Person's continuous service to the Issuer on each such date.