Insider · SEC Forms 3, 4, 5
CIK 1494730
All transactions
Every Form 4 row this person reported, newest first
Insider · SEC Forms 3, 4, 5
Every Form 4 row this person reported, newest first
Ballhaus William L (CIK 1436044) reported 22 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-09-15). Recent activity: Buy MRCY (23,629 shares), Sell MRCY (3,448 shares), Sell MRCY (107,628 shares), Buy MRCY (68,476 shares), Sell MRCY (38,276 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-15 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Buy | 23,629 | $0 |
| 2026-08-27 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 3,448 | $303,400 |
| 2026-08-27 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 107,628 | $9.4M |
| 2026-08-27 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Buy | 68,476 | $2.9M |
| 2026-08-27 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 38,276 | $3.4M |
| 2026-08-27 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 10,814 | $970,492 |
| 2026-08-27 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Buy | 153,676 | $6.6M |
| 2026-08-25 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Buy | 92,850 | $3.9M |
| 2026-08-25 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 64,796 | $6.0M |
| 2026-08-25 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 204 | $19,076 |
| 2026-08-25 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Buy | 140,650 | $5.9M |
| 2026-08-25 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Buy | 11,348 | $487,964 |
| 2026-08-25 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 105,471 | $9.4M |
| 2026-08-25 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 2,738 | $248,063 |
| 2026-08-21 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 26,802 | $2.7M |
| 2026-08-21 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 22,010 | $2.1M |
| 2026-08-19 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 3,536 | $388,786 |
| 2026-08-19 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 24,144 | $2.7M |
| 2026-08-18 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 70,287 | $0 |
| 2025-08-20 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 10,395 | $691,475 |
| 2025-08-20 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Sell | 13,050 | $841,203 |
| 2025-08-19 | MERCURY SYSTEMS INC (MRCY) | Chairman, President & CEO | Buy | 44,940 | $0 |
Source: SEC Form 4 filings · as of 2026-09-15