Stuart Kupinsky, EVP, CLO and corporate secretary at Mercury Systems Inc. ($MRCY), sold common shares on the open market three times in the past year for a total of about $348,000. His most recent MRCY insider sale occurred on February 17, 2026. These transactions rank 7,251st among nearly 12,000 insiders with open market sales, well below the average of $8.6 million across about six sales per insider. Kupinsky made no open market purchases in the last 365 days.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feb. 17, 2026 | MERCURY SYSTEMS INC | $MRCY | KUPINSKY STUART | EVP, CLO & Corp Sec | S | Common Stock | 2287 | $83.56 | 69,092.0000 | 60,014,632 | 3.20% | 0.00% |
| Aug. 19, 2025 | MERCURY SYSTEMS INC | $MRCY | KUPINSKY STUART | EVP, CLO & Corp Sec | S | Common Stock | 1220 | $64.46 | 71,305.0000 | 59,915,670 | 1.68% | 0.00% |
| Aug. 18, 2025 | MERCURY SYSTEMS INC | $MRCY | KUPINSKY STUART | EVP, CLO & Corp Sec | S | Common Stock | 1182 | $66.52 | 72,525.0000 | 59,915,670 | 1.60% | 0.00% |
| Aug. 15, 2025 | MERCURY SYSTEMS INC | $MRCY | KUPINSKY STUART | EVP, CLO & Corp Sec | A | Common Stock | 9865 | $0.00 | 73,707.0000 | 59,915,670 | 15.45% | 0.02% |
| Feb. 18, 2025 | MERCURY SYSTEMS INC | $MRCY | KUPINSKY STUART | EVP, CLO & Corp Sec | S | Common Stock | 2377 | $44.12 | 63,562.0000 | 0 | 3.60% | 0.00% |
| Aug. 15, 2024 | MERCURY SYSTEMS INC | $MRCY | KUPINSKY STUART | EVP, CLO & Corp Sec | A | Common Stock | 15657 | $0.00 | 65,618.0000 | 0 | 31.34% | 0.00% |
| Aug. 15, 2024 | MERCURY SYSTEMS INC | $MRCY | KUPINSKY STUART | EVP, CLO & Corp Sec | A | Common Stock | 15657 | $0.00 | 65,771.0000 | 0 | 31.24% | 0.00% |
| Feb. 15, 2024 | MERCURY SYSTEMS INC | $MRCY | KUPINSKY STUART | EVP, CLO & Corp Sec | A | Common Stock | 27255 | $0.00 | 49,554.0000 | 0 | 122.23% | 0.00% |
| Feb. 15, 2024 | MERCURY SYSTEMS INC | $MRCY | KUPINSKY STUART | EVP, CLO & Corp Sec | A | Common Stock | 22299 | $0.00 | 22,299.0000 | 0 | 9999.99% | 0.00% |