Ownership & Insider Lab
MERCURY SYSTEMS INC (MRCY)
Nasdaq · SEC CIK 0001049521
This is the supported SEC-traceable subset, not total insider ownership or personal wealth. Values reflect the current disclosed positions Grizzly Bulls can resolve and value. Latest source filing: Sep 8, 2026 · values through Sep 25, 2026.
Covered reporting owners
Filter the reporting-owner snapshot by holder, role, or security. Position values are shown only where the current reviewed data supports them.
| Holder | Role | Position | Current value | Latest filing |
|---|---|---|---|---|
| William L. Ballhaus | Chairman, President & CEO · Director | 361,822.325000000012 sharesCommon Stock, Par Value $0.01 Per Share | $29.74M | Aug 27, 2026 |
| David E. Farnsworth | EVP, CFO | 117,967 sharesCommon Stock, Par Value $0.01 Per Share | $9.7M | Aug 21, 2026 |
| Stuart Kupinsky | EVP, CLO & Corp Sec | 56,352 sharesCommon Stock, Par Value $0.01 Per Share | $4.63M | Aug 25, 2026 |
| Steven Ratner | EVP, CHRO | 19,275 sharesCommon Stock, Par Value $0.01 Per Share | $1.58M | Sep 8, 2026 |
| Douglas Munro | SVP, CAO | 12,982 sharesCommon Stock, Par Value $0.01 Per Share | $1.07M | Aug 21, 2026 |
Recent supported insider transactions
These are supported direct, non-derivative historical transactions from companies where recent transaction history has passed separate review. Reported price is shown when present. The lab does not calculate gross proceeds and does not treat historical transactions as current wealth.
| Date | Holder | Action | Security | Units | Reported price | Filing |
|---|---|---|---|---|---|---|
| Sep 21, 2026 | Stuart Kupinsky | SaleSEC code S | Common Stock, Par Value $0.01 Per Share | 1,000 shares | $86.52 | 4 |
| Sep 3, 2026 | Steven Ratner | SaleSEC code S | Common Stock, Par Value $0.01 Per Share | 4,000 shares | $84.5076 | 4 |
| Aug 26, 2026 | William L. Ballhaus | SaleSEC code S | Common Stock, Par Value $0.01 Per Share | 10,814 shares | $89.744 | 4 |
| Aug 26, 2026 | William L. Ballhaus | SaleSEC code S | Common Stock, Par Value $0.01 Per Share | 38,276 shares | $88.913 | 4 |
| Aug 26, 2026 | William L. Ballhaus | AcquisitionSEC code M | Common Stock, Par Value $0.01 Per Share | 68,476 shares | $43 | 4 |
| Aug 25, 2026 | William L. Ballhaus | SaleSEC code S | Common Stock, Par Value $0.01 Per Share | 3,448 shares | $87.993 | 4 |
| Aug 25, 2026 | William L. Ballhaus | SaleSEC code S | Common Stock, Par Value $0.01 Per Share | 107,628 shares | $87.089 | 4 |
| Aug 25, 2026 | William L. Ballhaus | AcquisitionSEC code M | Common Stock, Par Value $0.01 Per Share | 153,676 shares | $43 | 4 |
| Aug 24, 2026 | William L. Ballhaus | SaleSEC code S | Common Stock, Par Value $0.01 Per Share | 2,738 shares | $90.6 | 4 |
| Aug 24, 2026 | William L. Ballhaus | SaleSEC code S | Common Stock, Par Value $0.01 Per Share | 105,471 shares | $89.473 | 4 |
| Aug 24, 2026 | William L. Ballhaus | AcquisitionSEC code M | Common Stock, Par Value $0.01 Per Share | 11,348 shares | $43 | 4 |
| Aug 24, 2026 | William L. Ballhaus | AcquisitionSEC code M | Common Stock, Par Value $0.01 Per Share | 140,650 shares | $42 | 4 |
Published 12 of 44 source candidates under the current reviewed security-resolution rules.
Covered securities
| Security | Instrument family | Covered positions | Covered value |
|---|---|---|---|
| Common Stock, Par Value $0.01 Per Share | ordinary-share | 5 | $46.72M |
Coverage and interpretation
Current holdings: direct positions that the reviewed ownership data can trace to an exact reporting owner, legal security, and current-basis quantity.
Current value: the existing published company-position valuation. This lab does not recalculate security values or infer missing positions.
Transactions: historical flow observations only. They are not used to reconstruct current ownership and are shown only for companies where recent transaction history is currently published.
Not included here: a claim of total insider ownership, total personal wealth, institutional 13F ownership, or an investment recommendation.