Updated Jul 16, 2026 · Last SEC filing 2026-07-02
Septerna, Inc. (SEPN) has filed 15 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-02. 2 Form 8-K material event filings were reported by SEPN in the last 90 days. 6 Form 144 notices of proposed sale were filed for SEPN stock. InsiderAlpha tracks every SEPN SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.
| SEC CIK | 0001984086 |
|---|
| Form 4 filings (90d) | 15 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Form 144 notices (90d) | 6 |
| Latest Form 4 filing | 2026-07-02 |
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| Long Daniel D. | SVP, Drug Discovery | S — Open-market sale | 2.1K | $34.10 | $72K | SEC | |
| Long Daniel D. | SVP, Drug Discovery | S — Open-market sale | 1.2K | $34.81 | $43K | SEC | |
| Long Daniel D. | SVP, Drug Discovery | M — Option exercise | 3.3K | $2.76 | $9K | SEC | |
| Shaikhly Samira | Chief People Officer | S — Open-market sale | 2.2K | $35.18 | $77K | SEC | |
| Shaikhly Samira | Chief People Officer | M — Option exercise | 2.2K | $6.81 | $15K | SEC | |
| Long Daniel D. | SVP, Drug Discovery | S — Open-market sale | 8.0K | $35.10 | $281K | SEC | |
| Long Daniel D. | SVP, Drug Discovery | S — Open-market sale | 7.0K | $35.97 | $252K | SEC | |
| Long Daniel D. | SVP, Drug Discovery | M — Option exercise | 10.5K | $2.76 | $29K | SEC | |
| Long Daniel D. | SVP, Drug Discovery | M — Option exercise | 4.5K | $11.70 | $52K | SEC | |
| Shaikhly Samira | Chief People Officer | S — Open-market sale | 6.2K | $35.08 | $219K | SEC | |
| Shaikhly Samira | Chief People Officer | M — Option exercise | 6.2K | $11.70 | $73K | SEC | |
| Shaikhly Samira | Chief People Officer | M — Option exercise | 943 | $2.76 | $3K | SEC | |
| Shaikhly Samira | Chief People Officer | M — Option exercise | 637 | $2.76 | $2K | SEC | |
| Shaikhly Samira | Chief People Officer | M — Option exercise | 4.4K | $1.55 | $7K | SEC | |
| Shaikhly Samira | Chief People Officer | S — Open-market sale | 1.3K | $28.79 | $39K | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for Septerna, Inc. (SEPN). Updated in real time as new filings are submitted to the SEC.
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| Shaikhly Samira | 18 | $1.00M |
| Long Daniel D. | 10 | $738K |
| Bhatt Elizabeth | 5 | $125K |
| Bassan Abraham | 1 | — |
| Gottesdiener Keith Michael | 1 | — |
Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in SEPN insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
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