Mary Kay Fenton
CIK 1378589 · Chief Financial Officer · last filed 2026-02-23
Mary Kay Fenton is a Chief Financial Officer who has filed 32 SEC Form 4 insider transactions across 5 companies since 2007. The most recent filing shows the insider sold $59.9K of CGEM on Feb 23, 2026. Across all open-market trades the lifetime net is −$972.1K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $1.7M 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.
$1.73M
5
32
-$972.1K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CGEM | Chief Financial Officer | 126,380 | $13.70 | $1.73M | -$59.9K | 5 | 2026-02-23 |
| Tourmaline Bio, Inc. (TALS) Delisted | Chief Financial Officer | 68,054 | $27.20 | $1.85M | $0 | 4 | 2023-07-06 |
| Oncorus, Inc. (ONCR) Delisted | Director | — | $0.12 | — | $0 | 2 | 2022-06-24 |
| ACHILLION PHARMACEUTICALS INC (ACHN) Delisted | Chief Financial Officer | 2,500 | — | — | -$912.2K | 17 | 2018-02-13 |
| ACHILLION PHARMACEUTICALS INC (TPTX) Delisted | Vice President and CFO | 21,375 | $76.01 | $1.62M | $0 | 4 | 2008-12-17 |
Recent Filings
32 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-02-23 | CGEM | Sell (S) | −4,398 | -$59.9K | EDGAR |
| 2026-02-19 | CGEM | Grant (A) | +68,750 | $0 | EDGAR |
| 2026-01-05 | CGEM | Grant (A) | +27 | $175 | EDGAR |
| 2025-02-21 | CGEM | Grant (A) | +60,000 | $0 | EDGAR |
| 2024-04-30 | CGEM | Grant (A) | — | $0 | EDGAR |
| 2023-07-06 | Tourmaline Bio, Inc. (TALS) Delisted | Tax (F) | −12,946 | -$39.9K | EDGAR |
| 2023-02-03 | Tourmaline Bio, Inc. (TALS) Delisted | Grant (A) | — | $0 | EDGAR |
| 2022-09-13 | Tourmaline Bio, Inc. (TALS) Delisted | Grant (A) | +80,000 | $0 | EDGAR |
| 2022-06-24 | Oncorus, Inc. (ONCR) Delisted | Grant (A) | — | $0 | EDGAR |
| 2022-02-02 | Tourmaline Bio, Inc. (TALS) Delisted | Grant (A) | +1,000 | $13.0K | EDGAR |