MARK WEINSWIG
CIK 1265677 · Chief Financial Officer · last filed 2026-05-05
MARK WEINSWIG is a Chief Financial Officer who has filed 172 SEC Form 4 insider transactions across 8 companies since 2008. The most recent filing, for TBCH, was dated May 5, 2026. Across all open-market trades the lifetime net is −$1.4M, making them a net seller over the disclosed history. Current disclosed insider exposure totals $312.4K 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.
$312.4K
8
172
-$1.38M
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| TBCH | Chief Financial Officer | 23,045 | $13.29 | $306.3K | $0 | 4 | 2026-05-05 |
| Ouster, Inc. (OUST.WS.A) Delisted | Chief Financial Officer | 173,960 | $0.03 | $5.2K | -$947.6K | 19 | 2024-12-16 |
| Velodyne Lidar, Inc. (VLDRW) Delisted | Chief Financial Officer | 963,286 | $0.32 | $308.3K | $0 | 2 | 2023-02-13 |
| Avinger Inc (AVGR) Delisted | Chief Financial Officer | 80,382 | $0.47 | $38.1K | -$3.2K | 49 | 2021-09-20 |
| AQMS | Chief Financial Officer | 2,219 | $2.75 | $6.1K | $0 | 12 | 2018-02-23 |
| EMCORE CORP (RT) Delisted | Chief Financial Officer | 112,834 | — | — | -$429.6K | 71 | 2016-02-18 |
| AVANEX CORP (AVNX) Delisted | VP Finance and Interim CFO | 0 | — | — | $0 | 14 | 2009-04-27 |
| AVANEX CORP (AVNXD) Delisted | VP Finance and Interim CFO | 6,766 | — | — | $0 | 1 | 2008-08-20 |
Recent Filings
172 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-05-05 | TBCH | Mixed | +4,284 | -$27.0K | EDGAR |
| 2026-04-03 | TBCH | Grant (A) | — | $0 | EDGAR |
| 2026-02-04 | TBCH | Mixed | +16,357 | -$125.6K | EDGAR |
| 2025-02-04 | TBCH | Grant (A) | — | $0 | EDGAR |
| 2024-12-16 | Ouster, Inc. (OUST.WS.A) Delisted | Sell (S) | −19,712 | -$191.0K | EDGAR |
| 2024-12-03 | Ouster, Inc. (OUST.WS.A) Delisted | Sell (S) | −518 | -$5.0K | EDGAR |
| 2024-11-22 | Ouster, Inc. (OUST.WS.A) Delisted | Sell (S) | −35,857 | -$313.7K | EDGAR |
| 2024-09-16 | Ouster, Inc. (OUST.WS.A) Delisted | Sell (S) | −2,540 | -$15.7K | EDGAR |
| 2024-08-30 | Ouster, Inc. (OUST.WS.A) Delisted | Sell (S) | −519 | -$3.8K | EDGAR |
| 2024-06-13 | Ouster, Inc. (OUST.WS.A) Delisted | Sell (S) | −2,535 | -$28.2K | EDGAR |