David R. Horn
CIK 1834217 · PRESIDENT & CFO · last filed 2026-05-21
David R. Horn is a PRESIDENT & CFO who has filed 28 SEC Form 4 insider transactions across 1 company since 2020. The most recent filing shows the insider sold $12.4K of SEER on May 21, 2026. Across all open-market trades the lifetime net is −$3.0M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.1M across reported positions.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
$1.06M
1
28
-$2.96M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| SEER | PRESIDENT & CFO | 493,959 | $2.15 | $1.06M | -$2.96M | 28 | 2026-05-21 |
Recent Filings
28 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-21 | SEER | Sell (S) | −7,303 | -$12.4K | EDGAR |
| 2026-02-19 | SEER | Sell (S) | −7,743 | -$15.4K | EDGAR |
| 2026-02-05 | SEER | Grant (A) | +79,000 | $0 | EDGAR |
| 2025-11-21 | SEER | Sell (S) | −6,797 | -$13.4K | EDGAR |
| 2025-08-21 | SEER | Sell (S) | −6,827 | -$14.0K | EDGAR |
| 2025-05-22 | SEER | Sell (S) | −6,760 | -$14.0K | EDGAR |
| 2025-02-20 | SEER | Tax (F) | −26,572 | -$61.1K | EDGAR |
| 2025-02-05 | SEER | Sell (S) | −3,550 | -$7.9K | EDGAR |
| 2024-10-07 | SEER | Mixed | — | $0 | EDGAR |
| 2024-02-23 | SEER | Mixed | +152,354 | -$20.0K | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.