Ballhaus William L Insider Trading Activity
Ballhaus William L has been net-selling over the last 12 months with 0 purchases and 6 sales across 1 company.
MRCY is the most-traded position with 6 trades. The largest single transaction was a sale of MRCY for $9.4M on Aug 24, 2026.
Performance Scorecard
Forward stock performance after each transaction by Ballhaus William L. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -15.3% | 0% | 2 |
| 90 days | — | -4.4% | 0% | 2 |
| 120 days | — | -8.0% | 0% | 2 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersMRCY · MERCURY SYSTEMS INC
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| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Aug 24, 2026 | MRCY | Sell | 105,471 | $89.47 | $9.4M | −25.8% | CEO | |
Aug 24, 2026 | MRCY | Sell | 2,738 | $90.60 | $248K | −0.9% | CEO | |
Aug 21, 2026 | MRCY | Sell | 64,796 | $92.40 | $6.0M | −20.2% | CEO | |
Aug 21, 2026 | MRCY | Sell | 204 | $93.51 | $19K | −0.1% | CEO | |
Aug 20, 2026 | MRCY | Sell | 22,010 | $97.67 | $2.1M | −8.8% | CEO | |
Aug 19, 2026 | MRCY | Sell | 26,802 | $100.31 | $2.7M | −9.7% | CEO | |
Aug 19, 2025 | MRCY | Sell | 13,050 | $64.46 | $841K | −3.4% | CEO | |
Aug 18, 2025 | MRCY | Sell | 10,395 | $66.52 | $691K | −2.6% | CEO |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| MRCY | MERCURY SYSTEMS INC | 8 | $22.1M |
Other insiders at MERCURY SYSTEMS INC
6 other tracked filers at MRCY.