Horn David R.
Director · Officer · SEER, EDAP
As of 2026-09-16, Horn David R. has 11 Form 4 transactions on record across 2 companies — 7 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market sales filed in August in multiple years since 2025 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-18 | SEER | Sale | 7,309 @ $2.03 | $15K | −1.5% of holding | 486,650 | Form 4 |
| 2026-08-14 | EDAP | Purchase | 10,000 @ $4.75 | $48K | ownership Δ n/a | 10,000 | Form 4 |
| 2026-05-20 | SEER | Sale | 7,303 @ $1.69 | $12K | −1.5% of holding | 493,959 | Form 4 |
| 2026-02-18 | SEER | Sale | 7,743 @ $1.99 | $15K | −1.5% of holding | 501,262 | Form 4 |
| 2025-11-19 | SEER | Sale | 6,797 @ $1.97 | $13K | −1.5% of holding | 436,802 | Form 4 |
| 2025-08-20 | SEER | Sale | 6,827 @ $2.04 | $14K | −1.5% of holding | 436,802 | Form 4 |
| 2025-05-20 | SEER | Sale | 6,760 @ $2.08 | $14K | −1.5% of holding | 443,629 | Form 4 |
| 2025-02-04 | SEER | Sale | 3,550 @ $2.24 | $8K | −0.7% of holding | 476,961 | Form 4 |
3 award / exercise / gift records — not counted as purchases
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.