Ballhaus William L: insider trades.
Ballhaus William L reported 19 non-derivative transactions on 6 SEC ownership filings in Q3 2026: 0 open-market purchases and 12 sales ($37.7M), across 1 company.
- Transactions
- 19
- Purchases (P)
- 0
- Sales (S)
- 12
- Companies
- 1
- Name as filed
- Ballhaus William L
Companies
| Company | Relationship | Transactions |
|---|---|---|
| Mercury Systems Inc (MRCY) | Director, Officer · Chairman, President & CEO | 19 |
Transactions
| Date | Company | Code | Shares | Price | Owned after | Filing |
|---|---|---|---|---|---|---|
| 2026-08-26 | Mercury Systems Inc | S | 10,814 | $89.74 | 361,822 | Form 4 |
| 2026-08-26 | Mercury Systems Inc | S | 38,276 | $88.91 | 372,636 | Form 4 |
| 2026-08-26 | Mercury Systems Inc | M | 68,476 | $43 | 410,912 | Form 4 |
| 2026-08-25 | Mercury Systems Inc | S | 3,448 | $87.99 | 342,436 | Form 4 |
| 2026-08-25 | Mercury Systems Inc | S | 107,628 | $87.09 | 345,884 | Form 4 |
| 2026-08-25 | Mercury Systems Inc | M | 153,676 | $43 | 453,512 | Form 4 |
| 2026-08-24 | Mercury Systems Inc | S | 105,471 | $89.47 | 302,574 | Form 4 |
| 2026-08-24 | Mercury Systems Inc | S | 2,738 | $90.6 | 299,836 | Form 4 |
| 2026-08-24 | Mercury Systems Inc | M | 11,348 | $43 | 408,045 | Form 4 |
| 2026-08-24 | Mercury Systems Inc | M | 140,650 | $42 | 396,697 | Form 4 |
| 2026-08-21 | Mercury Systems Inc | S | 64,796 | $92.4 | 256,251 | Form 4 |
| 2026-08-21 | Mercury Systems Inc | S | 204 | $93.51 | 256,047 | Form 4 |
| 2026-08-21 | Mercury Systems Inc | M | 92,850 | $42 | 321,047 | Form 4 |
| 2026-08-20 | Mercury Systems Inc | S | 22,010 | $97.67 | 228,197 | Form 4 |
| 2026-08-19 | Mercury Systems Inc | S | 26,802 | $100.31 | 250,207 | Form 4 |
| 2026-08-18 | Mercury Systems Inc | S | 24,144 | $111.36 | 277,009 | Form 4 |
| 2026-08-17 | Mercury Systems Inc | A | 23,629 | $0 | 324,782 | Form 4/A |
| 2026-08-17 | Mercury Systems Inc | S | 3,536 | $109.95 | 301,153 | Form 4 |
| 2026-08-14 | Mercury Systems Inc | D | 70,287 | $0 | 304,689 | Form 4 |
Questions
What stock did Ballhaus William L buy or sell?
Ballhaus William L reported 19 non-derivative transactions on 6 SEC ownership filings in Q3 2026: 0 open-market purchases and 12 sales ($37.7M), across 1 company.
Is Ballhaus William L the same person as other filers with this name?
This page covers SEC CIK 1436044 only. The SEC assigns each reporting owner a CIK, and people with the same name have different CIKs.
Source: SEC Insider Transactions Data Sets, Q3 2026. Reported as filed; we do not assess intent, performance or compliance. All filings for this CIK on SEC.gov.
Plain-text version for agents and LLMs: /insiders/ballhaus-william-l-1436044.md
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