Who
David R. Horn
President & CFO
Company insider
Files Form 4 as: President & CFO, Seer; Director, Edap Tms Sa.
In numbers
- Trades disclosed
- 80
- Buys
- 1
- Sells
- 22
- Bought
- $95K
- Sold
- $3.0M
- Companies
- 2
- Companies where not an officer
- 1
- First trade
- 3 Dec 2020
- Last trade
- 18 Aug 2026
- Last filed
- 19 Aug 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 18 Aug 2026filed 19 Aug 2026 | SEER SeerLife-science tools | SEC FORM 4 Sold | $15K7,309 at $2.03 | filing |
| 18 Aug 2026filed 19 Aug 2026 | SEER SeerLife-science tools | SEC FORM 4 Sold | $15K7,309 at $2.03 | filing |
| 14 Aug 2026filed 17 Aug 2026 | Edap Tms SaMedical Devices | SEC FORM 4 Bought | $48K10,000 at $4.75 | filing |
| 14 Aug 2026filed 17 Aug 2026 | FOCL Edap TmsMedical Devices | SEC FORM 4 Bought | $48K10,000 at $4.75 | filing |
| 20 May 2026filed 21 May 2026 | SEER SeerLife-science tools | SEC FORM 4 Sold | $12K7,303 at $1.69 | filing |
| 20 May 2026filed 21 May 2026 | SEER SeerLife-science tools | SEC FORM 4 Sold | $12K7,303 at $1.69 | filing |
| 18 Feb 2026filed 19 Feb 2026 | SEER SeerLife-science tools | SEC FORM 4 Sold | $15K7,743 at $1.99 | filing |
| 18 Feb 2026filed 19 Feb 2026 | SEER SeerLife-science tools | SEC FORM 4 Sold | $15K7,743 at $1.99 | filing |
| 3 Feb 2026filed 5 Feb 2026 | SEER SeerLife-science tools | SEC FORM 4 Code A | —79,000 at $0.00 | filing |
| 3 Feb 2026filed 5 Feb 2026 | SEER Seeroption or derivative · Life-science tools | SEC FORM 4 Code A | —119,000 at $0.00 | filing |
| 3 Feb 2026filed 5 Feb 2026 | SEER Seeroption or derivative · Life-science tools | SEC FORM 4 Code A | —119,000 at $0.00 | filing |
| 3 Feb 2026filed 5 Feb 2026 | SEER SeerLife-science tools | SEC FORM 4 Code A | —79,000 at $0.00 | filing |
| 19 Nov 2025filed 21 Nov 2025 | SEER SeerLife-science tools | SEC FORM 4 Sold | $13K6,797 at $1.97 | filing |
| 20 Aug 2025filed 21 Aug 2025 | SEER SeerLife-science tools | SEC FORM 4 Sold | $14K6,827 at $2.04 | filing |
| 20 May 2025filed 22 May 2025 | SEER SeerLife-science tools | SEC FORM 4 Sold | $14K6,760 at $2.08 | filing |
| 18 Feb 2025filed 20 Feb 2025 | SEER SeerLife-science tools | SEC FORM 4 Code F | $61K26,572 at $2.30 | filing |
| 4 Feb 2025filed 5 Feb 2025 | SEER SeerLife-science tools | SEC FORM 4 Sold | $7,9523,550 at $2.24 | filing |
| 4 Oct 2024filed 7 Oct 2024 | SEER Seeroption or derivative · Life-science tools | SEC FORM 4 Code D | —566,460 | filing |
| 4 Oct 2024filed 7 Oct 2024 | SEER Seeroption or derivative · Life-science tools | SEC FORM 4 Code A | —566,460 | filing |
| 4 Oct 2024filed 7 Oct 2024 | SEER Seeroption or derivative · Life-science tools | SEC FORM 4 Code D | —140,662 | filing |
News
Seer (NASDAQ:SEER) versus BioLife Solutions (NASDAQ:BLFS) Head to Head AnalysisSEER · dailypolitical.com · 25 Oct 2026
0 headlines in the last 90 days name David R. Horn; 1 article from the last 14 days about the 2 companies they traded most, at most three about any one of them.