Horn David R.
SEC insider (Form 3/4/5 filer). CIK 0001834217. PRESIDENT & CFO at Seer, Inc. (SEER) and 1 other issuer. 26 reported Form 4/5 transactions since Sep 2024; latest on Aug 18, 2026. Located in LOS ALTOS,, CA.
Companies Horn David R. has filed insider reports for
- Seer, Inc. (SEER): Officer, PRESIDENT & CFO
- EDAP TMS SA (EDAP): Director
Horn David R.
CIK: 0001834217
Transaction Breakdown
Open Market Buys (P)1 (3.8%)
High conviction signal
Open Market Sales (S)7 (26.9%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)9 (34.6%)
Compensation grants
Other (G, F, J, C, D, …)9 (34.6%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (26 total)
- Aug 18, 2026SEER
Seer, Inc.
SaleDirect7.3K shares at avg. $2.03$15K - Aug 14, 2026EDAP
EDAP TMS SA
PurchaseDirect10K shares at avg. $4.75$48K - May 20, 2026SEER
Seer, Inc.
SaleDirect7.3K shares at avg. $1.69$12K - Feb 18, 2026SEER
Seer, Inc.
SaleDirect7.7K shares at avg. $1.99$15K - Feb 3, 2026SEER
Seer, Inc.
AwardDirect79K shares- - Nov 19, 2025SEER
Seer, Inc.
SaleDirect6.8K shares at avg. $1.97$13K - Aug 20, 2025SEER
Seer, Inc.
SaleDirect6.8K shares at avg. $2.04$14K - May 20, 2025SEER
Seer, Inc.
SaleDirect6.8K shares at avg. $2.08$14K - Feb 18, 2025SEER
Seer, Inc.
Tax PaymentDirect26.6K shares at avg. $2.30$61K - Feb 4, 2025SEER
Seer, Inc.
SaleDirect3.6K shares at avg. $2.24$8K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Aug 18, 2026 |  SEER Seer, Inc. | Sale | 7,309 | $2.03 | $14,809 | Direct |
| Aug 14, 2026 |  EDAP EDAP TMS SA | Purchase | 10,000 | $4.75 | $47,500 | Direct |
| May 20, 2026 | SEER Seer, Inc. | Sale | 7,303 | $1.69 | $12,352 | Direct |
| Feb 18, 2026 | SEER Seer, Inc. | Sale | 7,743 | $1.99 | $15,447 | Direct |
| Feb 3, 2026 | SEER Seer, Inc. | Award | 79,000 | - | $0 | Direct |
| Nov 19, 2025 | SEER Seer, Inc. | Sale | 6,797 | $1.97 | $13,400 | Direct |
| Aug 20, 2025 | SEER Seer, Inc. | Sale | 6,827 | $2.04 | $13,955 | Direct |
| May 20, 2025 | SEER Seer, Inc. | Sale | 6,760 | $2.08 | $14,028 | Direct |
| Feb 18, 2025 | SEER Seer, Inc. | Tax Payment | 26,572 | $2.30 | $61,116 | Direct |
| Feb 4, 2025 | SEER Seer, Inc. | Sale | 3,550 | $2.24 | $7,940 | Direct |
1-10 of 26 transactions