Ballhaus William L's Form 4 filing
Mercury Systems Inc (MRCY) · filed Aug 25, 2026
- Accession no.
- 0001049521-26-000060
- Filed
- Aug 25, 2026, 5:53 PM ET
- Trade date
- Aug 21-24, 2026
- Filing delay
- 4 days
- Rule 10b5-1 plan
- Not checked
This filing lists 7 non-derivative transactions and 3 derivative transactions. Open-market sales total $15.7M. It was filed 4 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Ballhaus William LCIK 0001436044 | Director, Officer (Chairman, President & CEO) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 21, 2026 | Common Stock | MOption exerciseAcquired | +92,850 | $42.00 | +$3,899,700 | 321,047.325 | Direct | |
| Aug 21, 2026 | Common Stock | SSaleDisposed | −64,796 | $92.40F3 | −$5,987,409.58 | 256,251.325 | Direct | |
| Aug 21, 2026 | Common Stock | SSaleDisposed | −204 | $93.51F4 | −$19,075.63 | 256,047.325 | Direct | |
| Aug 24, 2026 | Common Stock | MOption exerciseAcquired | +140,650 | $42.00 | +$5,907,300 | 396,697.325 | Direct | |
| Aug 24, 2026 | Common Stock | MOption exerciseAcquired | +11,348 | $43.00 | +$487,964 | 408,045.325 | Direct | |
| Aug 24, 2026 | Common Stock | SSaleDisposed | −105,471 | $89.47F5 | −$9,436,806.78 | 302,574.325 | Direct | |
| Aug 24, 2026 | Common Stock | SSaleDisposed | −2,738 | $90.60F6 | −$248,062.8 | 299,836.325 | Direct |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 21, 2026 | Common Stock | MOption exerciseDisposed | −92,850 | $0.00 | $0 | 140,650 | Direct | |
| Aug 24, 2026 | Common Stock | MOption exerciseDisposed | −140,650 | $0.00 | $0 | 0 | Direct | |
| Aug 24, 2026 | Common Stock | MOption exerciseDisposed | −11,348 | $0.00 | $0 | 222,152 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
- F3
This transaction was executed in multiple trades at prices ranging from $92.300 to $92.910. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
Referenced by the price of 1 transaction in Table I.
- F4
This transaction was executed in multiple trades at prices ranging from $93.505 to $93.680. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
Referenced by the price of 1 transaction in Table I.
- F5
This transaction was executed in multiple trades at prices ranging from $89.170 to $90.150. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
Referenced by the price of 1 transaction in Table I.
- F6
This transaction was executed in multiple trades at prices ranging from $90.250 to $90.735. The price reported above reflects the weighted average purchase price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.
Referenced by the price of 1 transaction in Table I.