Long Daniel D.
SEC insider (Form 3/4/5 filer). CIK 0002040349. SVP, Drug Discovery at Septerna, Inc. (SEPN). 16 reported Form 4/5 transactions since Sep 2024; latest on Sep 1, 2026. Located in SOUTH SAN FRANCISCO, CA.
Companies Long Daniel D. has filed insider reports for
- Septerna, Inc. (SEPN): Officer, SVP, Drug Discovery
Long Daniel D.
CIK: 0002040349
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)8 (50.0%)
Position reduction
Option Exercises (M)6 (37.5%)
Derivative conversions
Awards (A)2 (12.5%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
SEPN
Septerna, Inc.
Officer
Discretionary Trading P&L
Holdings
Transaction History (16 total)
- Sep 1, 2026SEPN
Septerna, Inc.
ExerciseDirect3.3K shares at avg. $2.76$9K - Sep 1, 2026SEPN
Septerna, Inc.
SaleDirect3.3K shares at avg. $37.83$126K - Aug 3, 2026SEPN
Septerna, Inc.
SaleDirect1K shares at avg. $33.98$34K - Aug 3, 2026SEPN
Septerna, Inc.
SaleDirect2.3K shares at avg. $34.68$81K - Aug 3, 2026SEPN
Septerna, Inc.
ExerciseDirect1.8K shares at avg. $2.76$5K - Aug 3, 2026SEPN
Septerna, Inc.
ExerciseDirect1.5K shares at avg. $2.76$4K - Jul 1, 2026SEPN
Septerna, Inc.
SaleDirect1.2K shares at avg. $34.81$43K - Jul 1, 2026SEPN
Septerna, Inc.
ExerciseDirect3.3K shares at avg. $2.76$9K - Jul 1, 2026SEPN
Septerna, Inc.
SaleDirect2.1K shares at avg. $34.10$72K - Jun 22, 2026SEPN
Septerna, Inc.
ExerciseDirect10.5K shares at avg. $2.76$29K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 1, 2026 | SEPN Septerna, Inc. | Exercise | 3,333 | $2.76 | $9,199 | Direct |
| Sep 1, 2026 | SEPN Septerna, Inc. | Sale | 3,333 | $37.83 | $126,078 | Direct |
| Aug 3, 2026 | SEPN Septerna, Inc. | Sale | 1,000 | $33.98 | $33,976 | Direct |
| Aug 3, 2026 | SEPN Septerna, Inc. | Sale | 2,334 | $34.68 | $80,944 | Direct |
| Aug 3, 2026 | SEPN Septerna, Inc. | Exercise | 1,816 | $2.76 | $5,012 | Direct |
| Aug 3, 2026 | SEPN Septerna, Inc. | Exercise | 1,518 | $2.76 | $4,190 | Direct |
| Jul 1, 2026 | SEPN Septerna, Inc. | Sale | 1,233 | $34.81 | $42,926 | Direct |
| Jul 1, 2026 | SEPN Septerna, Inc. | Exercise | 3,333 | $2.76 | $9,199 | Direct |
| Jul 1, 2026 | SEPN Septerna, Inc. | Sale | 2,100 | $34.10 | $71,602 | Direct |
| Jun 22, 2026 | SEPN Septerna, Inc. | Exercise | 10,529 | $2.76 | $29,060 | Direct |
1-10 of 16 transactions