Tyson Eliot Marshall
CIK 1666669 · GENERAL COUNSEL & CORP. SEC. · last filed 2026-04-09
Tyson Eliot Marshall is a GENERAL COUNSEL & CORP. SEC. who has filed 16 SEC Form 4 insider transactions across 2 companies since 2016. The most recent filing, for ATEC, was dated Apr 9, 2026. Across all open-market trades the lifetime net is −$4.2M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $4.8M 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.
$4.76M
2
16
-$4.23M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| ATEC | GENERAL COUNSEL & CORP. SEC. | 574,459 | $8.28 | $4.76M | -$4.23M | 15 | 2026-04-09 |
| MAD CATZ INTERACTIVE INC (MCZ) Delisted | General Counsel | — | — | — | $0 | 1 | 2016-09-09 |
Recent Filings
16 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-04-09 | ATEC | Mixed | +79,107 | $25 | EDGAR |
| 2026-03-09 | ATEC | Sell (S) | −88,835 | -$1.11M | EDGAR |
| 2026-02-27 | ATEC | Grant (A) | +302,852 | $0 | EDGAR |
| 2025-12-09 | ATEC | Sell (S) | −22,889 | -$491.5K | EDGAR |
| 2025-11-21 | ATEC | Sell (S) | −70,000 | -$1.37M | EDGAR |
| 2025-08-05 | ATEC | Sell (S) | −30,970 | -$424.2K | EDGAR |
| 2025-07-14 | ATEC | Sell (S) | −1,500 | -$18.0K | EDGAR |
| 2025-04-03 | ATEC | Grant (A) | +19,848 | $0 | EDGAR |
| 2025-03-07 | ATEC | Tax (F) | −27,805 | -$318.1K | EDGAR |
| 2025-01-31 | ATEC | Grant (A) | +233,120 | $0 | EDGAR |