Horn David R. (CIK 1834217) reported 8 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-21). Recent activity: Sell SEER (7,303 shares), Sell SEER (7,743 shares), Buy SEER (79,000 shares), Sell SEER (6,797 shares), Sell SEER (6,827 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-21 | Seer, Inc. (SEER) | PRESIDENT & CFO | Sell | 7,303 | $12,352 |
| 2026-02-19 | Seer, Inc. (SEER) | PRESIDENT & CFO | Sell | 7,743 | $15,409 |
| 2026-02-05 | Seer, Inc. (SEER) | PRESIDENT & CFO | Buy | 79,000 | $0 |
| 2025-11-21 | Seer, Inc. (SEER) | PRESIDENT & CFO | Sell | 6,797 | $13,390 |
| 2025-08-21 | Seer, Inc. (SEER) | PRESIDENT & CFO | Sell | 6,827 | $13,927 |
| 2025-05-22 | Seer, Inc. (SEER) | PRESIDENT & CFO | Sell | 6,760 | $14,061 |
| 2025-02-20 | Seer, Inc. (SEER) | PRESIDENT & CFO | Sell | 26,572 | $61,116 |
| 2025-02-05 | Seer, Inc. (SEER) | PRESIDENT & CFO | Sell | 3,550 | $7,952 |
Source: SEC Form 4 filings · as of 2026-05-21