# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001193125-26-098507
Filing Date
2026-03-09
Accepted
2026-03-09 16:11:30
Documents
107
Period of Report
2025-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | sepn-20251231.htm iXBRL | 10-K | 3991068
2 | EX-4.3 | sepn-ex4_3.htm | EX-4.3 | 53864
3 | EX-10.20 | sepn-ex10_20.htm | EX-10.20 | 80215
4 | EX-23.1 | sepn-ex23_1.htm iXBRL | EX-23.1 | 8605
5 | EX-31.1 | sepn-ex31_1.htm | EX-31.1 | 18148
6 | EX-31.2 | sepn-ex31_2.htm | EX-31.2 | 17936
7 | EX-32.1 | sepn-ex32_1.htm | EX-32.1 | 17089
8 | GRAPHIC | img170310032_0.jpg | GRAPHIC | 72466
9 | GRAPHIC | img170310032_1.jpg | GRAPHIC | 58043
10 | GRAPHIC | img170310032_2.jpg | GRAPHIC | 112399
11 | GRAPHIC | img170310032_3.jpg | GRAPHIC | 100330
12 | GRAPHIC | img170310032_4.jpg | GRAPHIC | 58487
13 | GRAPHIC | img170310032_5.jpg | GRAPHIC | 46763
14 | GRAPHIC | img170310032_6.jpg | GRAPHIC | 36823
15 | GRAPHIC | img170310032_7.jpg | GRAPHIC | 19699
16 | GRAPHIC | img170310032_8.jpg | GRAPHIC | 169074
17 | GRAPHIC | img170310032_9.jpg | GRAPHIC | 73054
18 | GRAPHIC | img170310032_10.jpg | GRAPHIC | 50750
19 | GRAPHIC | img170310032_11.jpg | GRAPHIC | 133676
20 | GRAPHIC | img170310032_12.jpg | GRAPHIC | 112399
| Complete submission text file | 0001193125-26-098507.txt |  | 17557564

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
21 | XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT | sepn-20251231.xsd | EX-101.SCH | 1847106
109 | EXTRACTED XBRL INSTANCE DOCUMENT | sepn-20251231_htm.xml | XML | 2643833

Mailing Address 250 EAST GRAND AVENUE, SUITE 65 SOUTH SAN FRANCISCO CA 94080
Business Address 250 EAST GRAND AVENUE, SUITE 65 SOUTH SAN FRANCISCO CA 94080 650-338-3533
Septerna, Inc. (Filer) CIK: 0001984086 (see all company filings)

EIN.: 843891440 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 001-42382 | Film No.: 26735053
SIC: 2834 Pharmaceutical Preparations
(CF Office: 03 Life Sciences)