Long Daniel D. — SEC Form 4 filings
SEC reporting owner CIK 2040349. 7 Form 4 filings on record with FilingPulse; latest filed 2026-09-03.
Transaction summary — filings shown
Covers all 7 filings on record, filed 2025-08-11 to 2026-09-03. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): none reported.
- Open-market sales (code S, non-derivative): 8 legs across 5 filings — 28,501 shares, $951,331 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 14.
- Largest priced transaction: sale of 8,000 shares @ $35.10 ($280,801) in Septerna, Inc., filed 2026-06-24.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Septerna, Inc. (SEPN) | SVP, Drug Discovery | 7 | — | 8 legs · 28,501 sh · $951,331 | 14 |
Form 4 filings — Long Daniel D.
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-09-03 | 4 | Septerna, Inc. (SEPN) | Option exercise (M): 3,333 @ $2.76 · Sale (S): 3,333 @ $37.83 · Option exercise (M): 3,333 (derivative) @ $0 | EDGAR |
| 2026-08-05 | 4 | Septerna, Inc. (SEPN) | Option exercise (M): 1,816 @ $2.76 · Option exercise (M): 1,518 @ $2.76 · Sale (S): 1,000 @ $33.98 · Sale (S): 2,334 @ $34.68 · Option exercise (M): 1,816 (derivative) @ $0 · Option exercise (M): 1,518 (derivative) @ $0 | EDGAR |
| 2026-07-02 | 4 | Septerna, Inc. (SEPN) | Option exercise (M): 3,333 @ $2.76 · Sale (S): 2,100 @ $34.10 · Sale (S): 1,233 @ $34.81 · Option exercise (M): 3,333 (derivative) @ $0 | EDGAR |
| 2026-06-24 | 4 | Septerna, Inc. (SEPN) | Option exercise (M): 10,529 @ $2.76 · Option exercise (M): 4,471 @ $11.70 · Sale (S): 8,000 @ $35.10 · Sale (S): 7,000 @ $35.97 · Option exercise (M): 10,529 (derivative) @ $0 · Option exercise (M): 4,471 (derivative) @ $0 | EDGAR |
| 2026-02-10 | 4 | Septerna, Inc. (SEPN) | Grant/award (A): 80,000 (derivative) @ $0 | EDGAR |
| 2025-11-13 | 4 | Septerna, Inc. (SEPN) | Sale (S): 3,501 @ $18.06 | EDGAR |
| 2025-08-11 | 4 | Septerna, Inc. (SEPN) | Grant/award (A): 30,000 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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