Reported relationships
Latest disclosed role at each company.
| Company | Last reported as | Report date | Published |
|---|---|---|---|
| MERCURY SYSTEMS INCMRCY · Entity 3908 | EVP, CLO & Corp Sec | September 21, 2026 | September 23, 2026 |
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
MERCURY SYSTEMS INC
Report date September 21, 2026 · Filed September 23, 2026
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | Direct | 60,971 |
Reported balance
After 2026-09-21 transaction · row 1
1 source rowRow 1 · 2026-09-21 · Sale · Disposed 1,000 · Balance 60,971 F1: Represents the sale of shares effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 7, 2026. |
| Common StockSEC Table I · non-derivative | Indirect401K Plan | 1,281 |
Reported balance
Holding disclosure · report date 2026-09-21 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 1,281 |
Filing footnotes · ownership attribution and instrument terms
F1: Represents the sale of shares effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 7, 2026.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| September 21, 2026 Filed Sep 23, 2026 21:37 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | SaleCommon Stock | 1,000 | $86.52 | $86,520.00 |
DisclosureSEC source: 0001049521-26-000083 · form4.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 60,971 F1 · shares: Represents the sale of shares effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 7, 2026. Read SEC document |
| August 21, 2026 Filed Aug 25, 2026 21:54 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | SaleCommon Stock | 1,000 | $95.23 | $95,230.00 |
DisclosureSEC source: 0001049521-26-000061 · form4.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: Plan reported Ownership: Direct Disclosed balance after: 56,352 F1 · shares: Represents the sale of shares effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 7, 2026. Read SEC document |
| August 19, 2026 Filed Aug 21, 2026 20:50 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | SaleCommon Stock | 1,308 | $100.31 | $131,200.25 |
DisclosureSEC source: 0001049521-26-000057 · form4.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 57,352 F1 · shares: Represents shares sold as part of a sell-to-cover program to satisfy tax withholding obligations upon the vesting of stock awards. F2 · price: Represents the per share price attributed to sales of shares on behalf of all participants under the sell-to-cover program on the transaction date indicated. Read SEC document |
| August 18, 2026 Filed Aug 19, 2026 22:26 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | SaleCommon Stock | 1,178 | $111.36 | $131,179.37 |
DisclosureSEC source: 0001049521-26-000052 · form4.xml · nonDerivative · entry 2 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 58,660 F1 · shares: Represents shares sold as part of a sell-to-cover program to satisfy tax withholding obligations upon the vesting of stock awards. F2 · price: Represents the per share price attributed to sales of shares on behalf of all participants under the sell-to-cover program on the transaction date indicated. Read SEC document |
| August 17, 2026 Filed Sep 15, 2026 22:08 UTC Amendment | MERCURY SYSTEMS INC MRCY · Entity 3908 | GrantCommon Stock | 5,619 | $0.00 | $0.00 |
DisclosureSEC source: 0001049521-26-000070 · form4a.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 65,457 F1 · shares: Represents restricted stock units that vest in equal annual increments over the three-year period following the grant date. Read SEC document |
| August 17, 2026 Filed Aug 19, 2026 22:26 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | SaleCommon Stock | 1,195 | $109.95 | $131,391.33 |
DisclosureSEC source: 0001049521-26-000052 · form4.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 59,838 F1 · shares: Represents shares sold as part of a sell-to-cover program to satisfy tax withholding obligations upon the vesting of stock awards. F2 · price: Represents the per share price attributed to sales of shares on behalf of all participants under the sell-to-cover program on the transaction date indicated. Read SEC document |
| August 14, 2026 Filed Aug 18, 2026 22:23 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | Disposition to issuerCommon Stock | 6,977 | $0.00 | $0.00 |
DisclosureSEC source: 0001049521-26-000048 · form4.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 61,033 F1 · shares: Represents shares underlying performance stock awards that were forfeited as a result of below-target performance. Read SEC document |
| February 17, 2026 Filed Feb 19, 2026 21:47 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | SaleCommon Stock | 2,287 | $83.56 | $191,091.20 |
DisclosureSEC source: 0001049521-26-000011 · form4.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 68,010 F1 · shares: Represents shares sold as part of a sell-to-cover program to satisfy tax withholding obligations upon the vesting of stock awards. F2 · price: Represents the per share price attributed to sales of shares on behalf of all participants under the sell-to-cover program on the transaction date indicated. Read SEC document |
| August 19, 2025 Filed Aug 20, 2025 21:14 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | SaleCommon Stock | 1,220 | $64.46 | $78,646.08 |
DisclosureSEC source: 0001127602-25-020796 · form4.xml · nonDerivative · entry 2 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 70,297 F1 · shares: Represents shares sold as part of a sell-to-cover program to satisfy tax withholding obligations upon the vesting of stock awards. F2 · price: Represents the per share price attributed to sales of shares on behalf of all participants under the sell-to-cover program on the transaction date indicated. Read SEC document |
| August 18, 2025 Filed Aug 20, 2025 21:14 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | SaleCommon Stock | 1,182 | $66.52 | $78,622.27 |
DisclosureSEC source: 0001127602-25-020796 · form4.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 71,517 F1 · shares: Represents shares sold as part of a sell-to-cover program to satisfy tax withholding obligations upon the vesting of stock awards. F2 · price: Represents the per share price attributed to sales of shares on behalf of all participants under the sell-to-cover program on the transaction date indicated. Read SEC document |
| August 15, 2025 Filed Aug 19, 2025 21:47 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | GrantCommon Stock | 9,865 | $0.00 | $0.00 |
DisclosureSEC source: 0001127602-25-020732 · form4.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 72,699 F1 · shares: Represents restricted stock units that vest in equal annual increments over the three-year period following the grant date. Read SEC document |
| February 18, 2025 Filed Feb 19, 2025 22:00 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | SaleCommon Stock | 2,377 | $44.12 | $104,882.75 |
DisclosureSEC source: 0001127602-25-005557 · form4.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 62,834 F1 · shares: Represents shares sold as part of a sell-to-cover program to satisfy tax withholding obligations upon the vesting of stock awards. F2 · price: Represents the per share price attributed to sales of shares on behalf of all participants under the sell-to-cover program on the transaction date indicated. Read SEC document |
| August 15, 2024 Filed Aug 19, 2024 21:51 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | GrantCommon Stock | 15,657 | $0.00 | $0.00 |
DisclosureSEC source: 0001127602-24-022525 · form4.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 65,211 F1 · shares: Represents restricted stock units that vest in 50%, 25% and 25% increments on the first, second and third anniversaries following the grant date, respectively. Read SEC document |
| August 15, 2024 Filed Sep 19, 2024 00:00 UTC Amendment | MERCURY SYSTEMS INC MRCY · Entity 3908 | GrantCommon Stock | 15,657 | $0.00 | $0.00 |
DisclosureSEC source: 0001127602-24-024185 · form4a.xml · nonDerivative · entry 1 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 65,211 F1 · shares: Represents restricted stock units that vest in 50%, 25% and 25% increments on the first, second and third anniversaries following the grant date, respectively. Read SEC document |
| February 15, 2024 Filed Feb 20, 2024 22:30 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | GrantCommon Stock | 27,255 | $0.00 | $0.00 |
DisclosureSEC source: 0001127602-24-005827 · form4.xml · nonDerivative · entry 3 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 49,554 F2 · shares: These shares of performance-based restricted stock vest on the three-year anniversary of the grant date, for an amount of shares between 0% and 225% of the amount listed in the table depending on the achievement of performance objectives for the three fiscal years ending July 3, 2026. Read SEC document |
| February 15, 2024 Filed Feb 20, 2024 22:30 UTC | MERCURY SYSTEMS INC MRCY · Entity 3908 | GrantCommon Stock | 22,299 | $0.00 | $0.00 |
DisclosureSEC source: 0001127602-24-005827 · form4.xml · nonDerivative · entry 2 KUPINSKY STUART · CIK 0001289593 · EVP, CLO & Corp Sec 10b5-1 filing: No plan indicated Ownership: Direct Disclosed balance after: 22,299 F1 · shares: These shares of restricted stock vest in equal annual increments over the three-year period following the grant date. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.