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Mercury System (MRCY)
NASDAQ
$91.63+$0.27 (+0.29%)
Price as of Aug 21, 2026 7:36 PM EDT- $5.5BMarket Cap
- 36.71%1-Year Change
- Aerospace & DefenseIndustry
Mercury System (MRCY)
$91.63+$0.27 (+0.29%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 15.61% | 9.4M | +450,577 (+4.81%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 14.69% | 8.8M | +145,124 (+1.65%) | Dec 31, 2024 |
BLACKROCK INC. | 14.67% | 8.8M | +1.4M (+15.93%) | Jun 30, 2024 |
VANGUARD GROUP INC | 9.38% | 5.6M | -98,984 (-1.76%) | Dec 31, 2025 |
JANA PARTNERS LLC | 7.32% | 4.4M | +2.4M (+54.64%) | Jun 30, 2023 |
JANA PARTNERS MANAGEMENT, LP | 6.59% | 4.0M | -148,575 (-3.75%) | Jun 30, 2026 |
BLACKROCK FUND ADVISORS | 6.37% | 3.8M | +986,626 (+25.80%) | Dec 31, 2016 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
VANGUARD INDEX FUNDS | 7.08% | 4.2M | +60,111 (+1.41%) | Mar 31, 2026 |
SPDR SERIES TRUST | 4.29% | 2.6M | 0 (0.00%) | Apr 30, 2026 |
VANGUARD EXPLORER FUND | 2.48% | 1.5M | 0 (0.00%) | Apr 30, 2026 |
JANUS INVESTMENT FUND | 1.91% | 1.1M | 0 (0.00%) | Mar 31, 2026 |
AIM COUNSELOR SERIES TRUST (INVESCO COUNSELOR SERIES TRUST) | 1.87% | 1.1M | +188,307 (+16.76%) | May 31, 2026 |
CONESTOGA FUNDS | 1.79% | 1.1M | -230,970 (-21.54%) | Mar 31, 2026 |
INVESCO EXCHANGE-TRADED FUND TRUST | 1.78% | 1.1M | +271,142 (+25.39%) | Apr 30, 2026 |
Current Ownership Distribution
- Institutions1.2B (72.27%)
- Mutual Funds439.1M (26.91%)
- Insiders13.5M (0.83%)
- Other0 (0.00%)
Insider Transactions
- 0.83% (13.5M)Current InsiderOwnership (%, shares)
- 0Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 8Number of InsiderSelling (last 12 months)
- $1.9BAmount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Munro Douglas SVP, CAO | Sell | Aug 20, 2026 | $10,646.40 | 109 | $97.67 | 12,982 |
Farnsworth David E. EVP, CFO | Sell | Aug 20, 2026 | $645,816.52 | 6,612 | $97.67 | 117,967 |
Ratner Steven EVP, CHRO | Sell | Aug 20, 2026 | $100,212.91 | 1,026 | $97.67 | 23,275 |
Ballhaus William L Chairman, President & CEO | Sell | Aug 20, 2026 | $2.1M | 22,010 | $97.67 | 228,197 |
Munro Douglas SVP, CAO | Sell | Aug 19, 2026 | $54,967.69 | 548 | $100.31 | 13,091 |
KUPINSKY STUART EVP, CLO & Corp Sec | Sell | Aug 19, 2026 | $131,200.25 | 1,308 | $100.31 | 57,352 |
Ratner Steven EVP, CHRO | Sell | Aug 19, 2026 | $219,369.22 | 2,187 | $100.31 | 24,301 |
Farnsworth David E. EVP, CFO | Sell | Aug 19, 2026 | $817,995.43 | 8,155 | $100.31 | 124,579 |
Ballhaus William L Chairman, President & CEO | Sell | Aug 19, 2026 | $2.7M | 26,802 | $100.31 | 250,207 |
KUPINSKY STUART EVP, CLO & Corp Sec | Sell | Aug 18, 2026 | $131,179.37 | 1,178 | $111.36 | 58,660 |
Ratner Steven EVP, CHRO | Sell | Aug 18, 2026 | $219,486.03 | 1,971 | $111.36 | 26,488 |
Munro Douglas SVP, CAO | Sell | Aug 18, 2026 | $55,010.70 | 494 | $111.36 | 13,639 |
Farnsworth David E. EVP, CFO | Sell | Aug 18, 2026 | $818,145.02 | 7,347 | $111.36 | 132,734 |
KUPINSKY STUART EVP, CLO & Corp Sec | Sell | Aug 17, 2026 | $131,391.33 | 1,195 | $109.95 | 59,838 |
Munro Douglas SVP, CAO | Sell | Aug 17, 2026 | $44,420.16 | 404 | $109.95 | 14,133 |
Ratner Steven EVP, CHRO | Sell | Aug 17, 2026 | $119,186.78 | 1,084 | $109.95 | 28,459 |
Farnsworth David E. EVP, CFO | Sell | Aug 17, 2026 | $147,883.96 | 1,345 | $109.95 | 140,081 |
Farnsworth David E. EVP, CFO | Return | Aug 14, 2026 | $0.00 | 16,275 | $0.00 | 141,426 |
Ballhaus William L Chairman, President & CEO | Return | Aug 14, 2026 | $0.00 | 70,287 | $0.00 | 304,689 |
Ratner Steven EVP, CHRO | Return | Aug 14, 2026 | $0.00 | 2,695 | $0.00 | 29,543 |
Ratner Steven EVP, CHRO | Award | Mar 16, 2026 | $0.00 | 437 | $0.00 | 34,238 |
JANA Partners Management, LP | Sell | Mar 04, 2026 | $9.0M | 100,899 | $89.68 | 4.1M |
JANA Partners Management, LP | Sell | Mar 03, 2026 | $15.2M | 168,648 | $90.12 | 4.2M |
JANA Partners Management, LP | Sell | Mar 02, 2026 | $17.2M | 182,510 | $94.05 | 4.4M |
LANCE HOWARD L | Sell | Feb 25, 2026 | $429,959.57 | 4,832 | $88.98 | 27,272 |
Munro Douglas SVP, CAO | Sell | Feb 17, 2026 | $48,629.24 | 582 | $83.56 | 14,328 |
KUPINSKY STUART EVP, CLO & Corp Sec | Sell | Feb 17, 2026 | $191,091.20 | 2,287 | $83.56 | 68,010 |
JANA Partners Management, LP | Sell | Feb 09, 2026 | $32.4M | 400,000 | $81.00 | 4.6M |
Nearhos Barry R | Award | Jan 15, 2026 | $0.00 | 474 | $0.00 | 31,079 |
Plunkett Debora A | Sell | Nov 07, 2025 | $125,784.02 | 1,700 | $73.99 | 16,833 |