Mercury Systems Inc (MRCY) · Insider trading
What Mercury Systems's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$194.05M
9 insiders, 0% under a plan
Net, 12 months
−$194.05M
bought less sold
Latest filing
2026-10-16
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Jana Partners Management, LPDirector, Other | – | $210.07M | 8 | 2026-03-04 | – |
| Ballhaus William LDirector, Chairman, President & CEO | – | $39.19M | 14 | 2026-08-26 | 372,636 |
| Farnsworth David E.EVP, CFO | – | $3.71M | 7 | 2026-08-20 | 117,967 |
| Ratner StevenEVP, CHRO | – | $2.18M | 13 | 2026-09-03 | 19,275 |
| Lance Howard LDirector | – | $1.35M | 3 | 2026-05-26 | – |
| Kupinsky StuartEVP, CLO & Corp Sec | – | $1.03M | 9 | 2026-09-21 | 60,971 |
| Carvalho Orlando DDirector | – | $625,520 | 1 | 2026-05-12 | 52,448 |
| Munro DouglasSVP, CAO | – | $500,596 | 12 | 2026-08-20 | 12,982 |
| Wells Charles Roger IVEVP, COO | – | $162,577 | 2 | 2025-02-18 | 95,928 |
| Plunkett Debora ADirector | – | $125,783 | 1 | 2025-11-07 | 16,833 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-09-21 | Kupinsky StuartEVP, CLO & Corp Sec | Saleplan | 1,000 | 86.52 | $86,520 | 60,971 | Form 4 |
| 2026-09-03 | Ratner StevenEVP, CHRO | Sale | 4,000 | 84.51 | $338,040 | 19,275 | Form 4 |
| 2026-08-26 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 38,276 | 88.91 | $3.40M | 372,636 | Form 4 |
| 2026-08-26 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 10,814 | 89.74 | $970,448 | 361,822 | Form 4 |
| 2026-08-25 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 107,628 | 87.09 | $9.37M | 345,884 | Form 4 |
| 2026-08-25 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 3,448 | 87.99 | $303,390 | 342,436 | Form 4 |
| 2026-08-24 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 105,471 | 89.47 | $9.44M | 302,574 | Form 4 |
| 2026-08-24 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 2,738 | 90.60 | $248,063 | 299,836 | Form 4 |
| 2026-08-21 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 64,796 | 92.40 | $5.99M | 256,251 | Form 4 |
| 2026-08-21 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 204 | 93.51 | $19,076 | 256,047 | Form 4 |
| 2026-08-21 | Kupinsky StuartEVP, CLO & Corp Sec | Saleplan | 1,000 | 95.23 | $95,230 | 56,352 | Form 4 |
| 2026-08-21 | Ratner StevenEVP, CHRO | Saleindirect | 356 | 91.36 | $32,524 | 0 | Form 4 |
| 2026-08-20 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 22,010 | 97.67 | $2.15M | 228,197 | Form 4 |
| 2026-08-20 | Farnsworth David E.EVP, CFO | Sale | 6,612 | 97.67 | $645,794 | 117,967 | Form 4 |
| 2026-08-20 | Ratner StevenEVP, CHRO | Sale | 1,026 | 97.67 | $100,209 | 23,275 | Form 4 |
| 2026-08-20 | Munro DouglasSVP, CAO | Sale | 109 | 97.67 | $10,646 | 12,982 | Form 4 |
| 2026-08-19 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 26,802 | 100.31 | $2.69M | 250,207 | Form 4 |
| 2026-08-19 | Farnsworth David E.EVP, CFO | Sale | 8,155 | 100.31 | $818,028 | 124,579 | Form 4 |
| 2026-08-19 | Kupinsky StuartEVP, CLO & Corp Sec | Sale | 1,308 | 100.31 | $131,205 | 57,352 | Form 4 |
| 2026-08-19 | Ratner StevenEVP, CHRO | Sale | 2,187 | 100.31 | $219,378 | 24,301 | Form 4 |
| 2026-08-19 | Munro DouglasSVP, CAO | Sale | 548 | 100.31 | $54,970 | 13,091 | Form 4 |
| 2026-08-18 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 24,144 | 111.36 | $2.69M | 277,009 | Form 4 |
| 2026-08-18 | Farnsworth David E.EVP, CFO | Sale | 7,347 | 111.36 | $818,162 | 132,734 | Form 4 |
| 2026-08-18 | Kupinsky StuartEVP, CLO & Corp Sec | Sale | 1,178 | 111.36 | $131,182 | 58,660 | Form 4 |
| 2026-08-18 | Ratner StevenEVP, CHRO | Sale | 1,971 | 111.36 | $219,491 | 26,488 | Form 4 |
| 2026-08-18 | Munro DouglasSVP, CAO | Sale | 494 | 111.36 | $55,012 | 13,639 | Form 4 |
| 2026-08-17 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 3,536 | 109.95 | $388,783 | 301,153 | Form 4 |
| 2026-08-17 | Farnsworth David E.EVP, CFO | Sale | 1,345 | 109.95 | $147,883 | 140,081 | Form 4 |
| 2026-08-17 | Kupinsky StuartEVP, CLO & Corp Sec | Sale | 1,195 | 109.95 | $131,390 | 59,838 | Form 4 |
| 2026-08-17 | Ratner StevenEVP, CHRO | Sale | 1,084 | 109.95 | $119,186 | 28,459 | Form 4 |
| 2026-08-17 | Munro DouglasSVP, CAO | Sale | 404 | 109.95 | $44,420 | 14,133 | Form 4 |
| 2026-05-26 | Lance Howard LDirector | Saleindirect | 8,000 | 99.95 | $799,600 | 1,250 | Form 4 |
| 2026-05-26 | Lance Howard LDirector | Saleindirect | 1,250 | 98.50 | $123,125 | 0 | Form 4 |
| 2026-05-12 | Carvalho Orlando DDirector | Sale | 7,000 | 89.36 | $625,520 | 52,448 | Form 4 |
| 2026-05-11 | Ratner StevenEVP, CHRO | Sale | 2,000 | 92.46 | $184,920 | 32,238 | Form 4 |
| 2026-04-16 | Farnsworth David E.EVP, CFO | Sale | 3,625 | 84.87 | $307,654 | 157,701 | Form 4 |
| 2026-03-04 | Jana Partners Management, LPDirector, Other | Saleindirect | 100,899 | 89.68 | $9.05M | 4,114,618 | Form 4 |
| 2026-03-03 | Jana Partners Management, LPDirector, Other | Saleindirect | 168,648 | 90.12 | $15.20M | 4,215,517 | Form 4 |
| 2026-03-02 | Jana Partners Management, LPDirector, Other | Saleindirect | 182,510 | 94.05 | $17.17M | 4,384,165 | Form 4 |
| 2026-02-25 | Lance Howard LDirector | Sale | 4,832 | 88.98 | $429,951 | 27,272 | Form 4 |
30 more
| 2026-02-17 | Munro DouglasSVP, CAO | Sale | 582 | 83.56 | $48,632 | 14,328 | Form 4 |
| 2026-02-17 | Kupinsky StuartEVP, CLO & Corp Sec | Sale | 2,287 | 83.56 | $191,102 | 68,010 | Form 4 |
| 2026-02-09 | Jana Partners Management, LPDirector, Other | Saleindirect | 400,000 | 81.00 | $32.40M | 4,566,675 | Form 4 |
| 2025-11-12 | Munro DouglasSVP, CAO | Sale | 1,329 | 73.42 | $97,575 | 14,678 | Form 4 |
| 2025-11-07 | Plunkett Debora ADirector | Sale | 1,700 | 73.99 | $125,783 | 16,833 | Form 4 |
| 2025-11-06 | Jana Partners Management, LPDirector, Other | Saleindirect | 1,000,000 | 75.45 | $75.45M | 4,966,675 | Form 4 |
| 2025-09-16 | Munro DouglasVP, CAO | Sale | 67 | 73.40 | $4,918 | 16,007 | Form 4 |
| 2025-08-20 | Ratner StevenEVP, CHRO | Sale | 7,000 | 63.76 | $446,320 | 33,801 | Form 4 |
| 2025-08-19 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 13,050 | 64.46 | $841,203 | 374,976 | Form 4 |
| 2025-08-19 | Farnsworth David E.EVP, CFO | Sale | 7,572 | 64.46 | $488,091 | 161,326 | Form 4 |
| 2025-08-19 | Kupinsky StuartEVP, CLO & Corp Sec | Sale | 1,220 | 64.46 | $78,641 | 70,297 | Form 4 |
| 2025-08-19 | Ratner StevenEVP, CHRO | Sale | 1,735 | 64.46 | $111,838 | 40,801 | Form 4 |
| 2025-08-19 | Munro DouglasVP, CAO | Sale | 376 | 64.46 | $24,237 | 16,074 | Form 4 |
| 2025-08-18 | Ballhaus William LDirector, Chairman, President & CEO | Sale | 10,395 | 66.52 | $691,475 | 388,026 | Form 4 |
| 2025-08-18 | Farnsworth David E.EVP, CFO | Sale | 7,339 | 66.52 | $488,190 | 168,898 | Form 4 |
| 2025-08-18 | Kupinsky StuartEVP, CLO & Corp Sec | Sale | 1,182 | 66.52 | $78,627 | 71,517 | Form 4 |
| 2025-08-18 | Ratner StevenEVP, CHRO | Sale | 1,681 | 66.52 | $111,820 | 42,536 | Form 4 |
| 2025-08-18 | Munro DouglasVP, CAO | Sale | 363 | 66.52 | $24,147 | 16,450 | Form 4 |
| 2025-08-13 | Jana Partners Management, LPDirector, Other | Saleindirect | 797,000 | 65.42 | $52.14M | 5,964,313 | Form 4 |
| 2025-06-16 | Ratner StevenEVP, CHRO | Sale | 1,839 | 53.48 | $98,350 | 35,174 | Form 4 |
| 2025-05-14 | Munro DouglasVP, CAO | Sale | 1,610 | 45.64 | $73,480 | 13,433 | Form 4 |
| 2025-05-14 | Munro DouglasVP, CAO | Saleindirect | 809 | 44.88 | $36,308 | 0 | Form 4 |
| 2025-05-09 | Jana Partners Management, LPDirector, 10% owner, Other | Saleindirect | 100,000 | 45.87 | $4.59M | 6,761,313 | Form 4 |
| 2025-05-08 | Ratner StevenEVP, CHRO | Sale | 3,892 | 47.70 | $185,648 | 56,187 | Form 4 |
| 2025-05-08 | Ratner StevenEVP, CHRO | Saleindirect | 325 | 46.03 | $14,960 | 0 | Form 4 |
| 2025-05-08 | Jana Partners Management, LPDirector, 10% owner, Other | Saleindirect | 88,152 | 46.27 | $4.08M | 6,861,313 | Form 4 |
| 2025-02-18 | Wells Charles Roger IVEVP, COO | Sale | 2,342 | 44.12 | $103,329 | 95,928 | Form 4 |
| 2025-02-18 | Munro DouglasVP, CAO | Sale | 595 | 44.12 | $26,251 | 14,572 | Form 4 |
| 2025-02-18 | Kupinsky StuartEVP, CLO & Corp Sec | Sale | 2,377 | 44.12 | $104,873 | 62,834 | Form 4 |
| 2024-11-18 | Wells Charles Roger IVEVP, COO | Sale | 1,527 | 38.80 | $59,248 | 113,488 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
37 × grant or award7 × returned to the company5 × option exercise
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-10-15 | Nearhos Barry RDirector | Grant or award A | +235 | – | 31,729 | Form 4 |
| 2026-08-26 | Ballhaus William LDirector, Chairman, President & CEO | Option exercise M | +68,476 | 43.00 | 410,912 | Form 4 |
| 2026-08-25 | Ballhaus William LDirector, Chairman, President & CEO | Option exercise M | +153,676 | 43.00 | 453,512 | Form 4 |
| 2026-08-24 | Ballhaus William LDirector, Chairman, President & CEO | Option exercise M | +140,650 | 42.00 | 396,697 | Form 4 |
| 2026-08-24 | Ballhaus William LDirector, Chairman, President & CEO | Option exercise M | +11,348 | 43.00 | 408,045 | Form 4 |
| 2026-08-21 | Ballhaus William LDirector, Chairman, President & CEO | Option exercise M | +92,850 | 42.00 | 321,047 | Form 4 |
| 2026-08-17 | Ballhaus William LDirector, Chairman, President & CEO | Grant or award A | +23,629 | – | 324,782 | Form 4/A |
| 2026-08-17 | Farnsworth David E.EVP, CFO | Grant or award A | +8,212 | – | 148,293 | Form 4/A |
| 2026-08-17 | Kupinsky StuartEVP, CLO & Corp Sec | Grant or award A | +5,619 | – | 65,457 | Form 4/A |
| 2026-08-17 | Munro DouglasSVP, CAO | Grant or award A | +2,882 | – | 17,015 | Form 4/A |
| 2026-08-17 | Ratner StevenEVP, CHRO | Grant or award A | +5,187 | – | 33,646 | Form 4/A |
| 2026-08-14 | Ballhaus William LDirector, Chairman, President & CEO | Returned to the company D | −70,287 | – | 304,689 | Form 4 |
| 2026-08-14 | Farnsworth David E.EVP, CFO | Returned to the company D | −16,275 | – | 141,426 | Form 4 |
| 2026-08-14 | Kupinsky StuartEVP, CLO & Corp Sec | Returned to the company D | −6,977 | – | 61,033 | Form 4 |
| 2026-08-14 | Ratner StevenEVP, CHRO | Returned to the company D | −2,695 | – | 29,543 | Form 4 |
| 2026-07-16 | Nearhos Barry RDirector | Grant or award A | +170 | – | 31,494 | Form 4 |
| 2026-04-16 | Nearhos Barry RDirector | Grant or award A | +245 | – | 31,324 | Form 4 |
| 2026-03-16 | Ratner StevenEVP, CHRO | Grant or award A | +437 | – | 34,238 | Form 4 |
| 2026-01-15 | Nearhos Barry RDirector | Grant or award A | +474 | – | 31,079 | Form 4 |
| 2025-10-22 | Jana Partners Management, LPDirector, Other | Grant or award A | +2,362 | – | 5,966,675 | Form 4 |
| 2025-10-22 | Disbrow Lisa SDirector | Grant or award A | +2,362 | – | 31,236 | Form 4 |
| 2025-10-22 | Carvalho Orlando DDirector | Grant or award A | +2,362 | – | 59,448 | Form 4 |
| 2025-10-22 | Lance Howard LDirector | Grant or award A | +2,362 | – | 32,104 | Form 4 |
| 2025-10-22 | Nearhos Barry RDirector | Grant or award A | +2,362 | – | 30,605 | Form 4 |
| 2025-10-22 | Demuro Gerard JDirector | Grant or award A | +2,362 | – | 17,481 | Form 4 |
| 2025-10-22 | Plunkett Debora ADirector | Grant or award A | +2,362 | – | 18,533 | Form 4 |
| 2025-10-22 | Bua Jean ADirector | Grant or award A | +2,362 | – | 7,815 | Form 4 |
| 2025-10-16 | Nearhos Barry RDirector | Grant or award A | +487 | – | 28,243 | Form 4 |
| 2025-08-15 | Ballhaus William LDirector, Chairman, President & CEO | Grant or award A | +44,940 | – | 398,421 | Form 4 |
| 2025-08-15 | Farnsworth David E.EVP, CFO | Grant or award A | +13,153 | – | 176,237 | Form 4 |
| 2025-08-15 | Kupinsky StuartEVP, CLO & Corp Sec | Grant or award A | +9,865 | – | 72,699 | Form 4 |
| 2025-08-15 | Ratner StevenEVP, CHRO | Grant or award A | +9,043 | – | 44,217 | Form 4 |
| 2025-08-15 | Munro DouglasVP, CAO | Grant or award A | +3,380 | – | 16,813 | Form 4 |
| 2025-07-17 | Nearhos Barry RDirector | Grant or award A | +666 | – | 27,756 | Form 4 |
| 2025-05-16 | Ratner StevenEVP, CHRO | Returned to the company D | −19,174 | – | 37,013 | Form 4 |
| 2025-04-17 | Nearhos Barry RDirector | Grant or award A | +761 | – | 27,090 | Form 4 |
| 2025-04-15 | Farnsworth David E.EVP, CFO | Grant or award A | +22,306 | – | 163,084 | Form 4 |
| 2025-02-15 | Wells Charles Roger IVEVP, COO | Returned to the company D | −15,091 | – | 98,270 | Form 4 |
| 2025-01-16 | Nearhos Barry RDirector | Grant or award A | +826 | – | 26,329 | Form 4 |
| 2025-01-15 | Bua Jean ADirector | Grant or award A | +5,453 | – | 5,453 | Form 4 |
| 2024-11-15 | Wells Charles Roger IVEVP, COO | Returned to the company D | −15,393 | – | 115,015 | Form 4 |
| 2024-10-23 | Jana Partners Management, LPDirector, 10% owner, Other | Grant or award A | +4,832 | – | – | Form 4 |
| 2024-10-23 | Lance Howard LDirector | Grant or award A | +4,832 | – | 29,742 | Form 4 |
| 2024-10-23 | Krone Roger ADirector | Grant or award A | +4,832 | – | 15,311 | Form 4 |
| 2024-10-23 | Carvalho Orlando DDirector | Grant or award A | +4,832 | – | 57,086 | Form 4 |
| 2024-10-23 | Disbrow Lisa SDirector | Grant or award A | +4,832 | – | 28,874 | Form 4 |
| 2024-10-23 | Demuro Gerard JDirector | Grant or award A | +4,832 | – | 15,119 | Form 4 |
| 2024-10-23 | Nearhos Barry RDirector | Grant or award A | +4,832 | – | 25,503 | Form 4 |
| 2024-10-23 | Plunkett Debora ADirector | Grant or award A | +4,832 | – | 16,171 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.