STUART KUPINSKY
CIK 1289593 · EVP, CLO & Corp Sec · last filed 2026-02-19
STUART KUPINSKY is an EVP, CLO & Corp Sec who has filed 21 SEC Form 4 insider transactions across 2 companies since 2007. The most recent filing shows the insider sold $191.1K of MRCY on Feb 19, 2026. Across all open-market trades the lifetime net is −$769.0K, making them a net seller over the disclosed history. Current disclosed insider exposure totals $8.3M 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.
$8.31M
2
21
-$769.0K
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| MRCY | EVP, CLO & Corp Sec | 69,092 | $120.30 | $8.31M | -$453.2K | 7 | 2026-02-19 |
| TEKELEC (TKLC) Delisted | Senior V.P. (See Remarks) | 0 | — | — | -$315.8K | 14 | 2012-01-30 |
Recent Filings
21 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-02-19 | MRCY | Sell (S) | −2,287 | -$191.1K | EDGAR |
| 2025-08-20 | MRCY | Sell (S) | −2,402 | -$157.3K | EDGAR |
| 2025-08-19 | MRCY | Grant (A) | +9,865 | $0 | EDGAR |
| 2025-02-19 | MRCY | Sell (S) | −2,377 | -$104.9K | EDGAR |
| 2024-09-18 | MRCY | Grant (A) | +15,657 | $0 | EDGAR |
| 2024-08-19 | MRCY | Grant (A) | +15,657 | $0 | EDGAR |
| 2024-02-20 | MRCY | Grant (A) | +49,554 | $0 | EDGAR |
| 2012-01-30 | TEKELEC (TKLC) Delisted | Disp (D) | −29,545 | -$325.0K | EDGAR |
| 2011-05-17 | TEKELEC (TKLC) Delisted | Mixed | +7,261 | -$29.6K | EDGAR |
| 2011-03-01 | TEKELEC (TKLC) Delisted | Mixed | +7,960 | -$33.0K | EDGAR |