Michael H. Davidson
CIK 1573785 · Chief Executive Officer · last filed 2026-03-02
Michael H. Davidson is a Chief Executive Officer who has filed 24 SEC Form 4 insider transactions across 6 companies since 2020. The most recent filing, for NAMSW, was dated Mar 2, 2026. Across all open-market trades the lifetime net is −$25.1M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $9.2M 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.
$9.18M
6
24
-$25.06M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| NAMSW | Chief Executive Officer | 459,859 | $18.80 | $8.65M | -$25.16M | 9 | 2026-03-02 |
| TENX | Director | 2,881 | $11.48 | $33.1K | $0 | 5 | 2026-01-13 |
| BIOA | Director | — | $18.04 | — | $0 | 2 | 2025-06-09 |
| SLN | Director | — | $6.69 | — | $0 | 1 | 2025-01-06 |
| THC | Director | 2,881 | $174.66 | $503.2K | $0 | 1 | 2024-08-08 |
| LISATA THERAPEUTICS, INC. (CLBS) Delisted | Director | 209,753 | $6.40 | $1.34M | $99.9K | 4 | 2022-01-12 |
Recent Filings
24 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-03-02 | NAMSW | Mixed | — | -$14.75M | EDGAR |
| 2026-02-26 | NAMSW | Mixed | — | -$10.58M | EDGAR |
| 2026-01-13 | TENX | Grant (A) | — | $0 | EDGAR |
| 2026-01-09 | NAMSW | Mixed | +69,418 | $0 | EDGAR |
| 2025-07-03 | TENX | Grant (A) | — | $0 | EDGAR |
| 2025-06-09 | BIOA | Grant (A) | — | $0 | EDGAR |
| 2025-03-28 | NAMSW | Mixed | +57,128 | $0 | EDGAR |
| 2025-01-07 | NAMSW | Grant (A) | +123,529 | $0 | EDGAR |
| 2025-01-06 | SLN | Grant (A) | — | $0 | EDGAR |
| 2024-12-12 | TENX | Grant (A) | — | $0 | EDGAR |