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MRCY — MERCURY SYS INC

Reported value held$3.36B
Funds holding (latest)47
SectorTechnology
Funds holding (Q2 2026)35
Institutional value$2.90B · 24.99M sh
New / Add / Cut / Exit3 / 19 / 12 / 1
Top-5 / Top-10 concentration71.4% / 86.9%
Institutional holdings change Accumulating +11.2% (+2.52M sh)
Institutional value change Up +85.3%

As of Q2 2026, 35 SEC-registered investment managers reported holding MRCY (MERCURY SYS INC) in their latest 13F filings, with a combined reported value of $2.90B across 24.99M shares. That is +11.2% by share count (+2.52M shares) versus the previous quarter, while reported value moved +85.3%. Ownership is concentrated: the five largest holders account for 71.4% of reported value and the top ten for 86.9%.

Compared with the prior quarter, 3 opened new positions, 19 added to existing stakes, 12 trimmed, 1 exited entirely. 13F holdings are quarter-end snapshots, so these moves reflect positioning as of Q2 2026, not real-time trading.

MRCY is classified in the Technology sector.

All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.

FundQuarterSharesValuePortfolio WeightChange
BlackRock Inc history Q2 2026 9.37M $1.15B 0.02% Add
Vanguard Group history Q4 2025 5.63M $411.20M 0.01% Reduce
Invesco Ltd history Q2 2026 2.67M $326.55M 0.03% Add
Fidelity Management & Research (FMR) history Q2 2026 1.84M $225.34M 0.01% Add
Goldman Sachs Group history Q2 2026 1.58M $192.76M 0.02% Add
Geode Capital Management history Q2 2026 1.46M $178.58M 0.01% Reduce
Franklin Resources history Q2 2026 846.73K $103.58M 0.02% Add
Morgan Stanley history Q2 2026 811.57K $99.28M 0.01% Add
Wellington Management Group history Q2 2026 775.50K $94.87M 0.02% Add
Charles Schwab Investment Management history Q2 2026 627.58K $76.77M 0.01% Reduce
Baron Funds history Q2 2026 606.92K $74.24M 0.18% Reduce
Northern Trust Corp history Q2 2026 597.75K $73.12M 0.01% Add
BNY Mellon history Q2 2026 314.22K $38.44M 0.01% Hold
UBS Group AG history Q2 2026 274.80K $33.62M 0.01% Add
Principal Global Investors history Q2 2026 258.56K $31.63M 0.02% Add
Royce & Associates history Q2 2026 238.33K $29.15M 0.23% Add
Bank of America Corp history Q2 2026 223.53K $27.34M 0.00% Reduce
Scopia Capital Management history Q2 2025 446.62K $24.06M 2.94% Reduce
PSP Investments history Q2 2026 181.54K $22.21M 0.06% Reduce
JPMorgan Chase & Co history Q2 2026 193.47K $21.60M 0.00% New

View all 47 fund holders →

New Positions (Q2 2026)

Fully Exited (vs previous quarter)

Fund Position History — shares by quarter (top 20 funds)

FundQ3 2021Q4 2021Q1 2022Q2 2022Q3 2022Q4 2022Q1 2023Q2 2023Q3 2023Q4 2023Q1 2024Q2 2024Q3 2024Q4 2024Q1 2025Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
BlackRock Inc — — — — — — — — — — — — 8.68M 8.82M 8.77M 8.25M 8.48M 8.61M 8.92M 9.37M
Invesco Ltd 265.71K 226.52K 720.32K 1.18M 1.19M 1.21M 1.23M 414.40K 453.86K 526.23K 578.25K 581.99K 594.11K 631.96K 610.69K 583.71K 1.53M 1.91M 2.44M 2.67M
Fidelity Management & Research (FMR) 404.87K 368.75K 936.18K 761.98K 779.80K 815.48K 431.75K 416.12K 411.80K 410.99K 1.45K 2.09K 3.07K 555.99K 838.14K 1.17M 1.48M 1.15M 903.67K 1.84M
Goldman Sachs Group 992.39K 2.03M 2.19M 301.66K 473.12K 107.36K 41.80K 105.61K 106.60K 72.25K 93.27K 402.98K 553.97K 564.45K 855.44K 1.06M 1.24M 1.16M 1.20M 1.58M
Geode Capital Management 1.24M 1.46M 777.65K 776.55K 791.12K 806.38K 830.42K 865.03K 791.91K 838.22K 869.65K 1.27M 1.27M 1.23M 1.26M 1.27M 1.32M 1.37M 1.53M 1.46M
Franklin Resources 344.48K — — — — — — — — — — — — — — 17.71K 23.99K 208.45K 453.63K 846.73K
Morgan Stanley 264.83K 33.23K 205.16K 409.38K 384.35K 420.43K 370.88K 197.42K 342.51K 301.62K 511.30K 805.54K 551.60K 515.26K 542.84K 928.17K 876.40K 730.68K 671.33K 811.57K
Wellington Management Group 2.82M 2.86M 2.79M 2.38M 2.18M 2.26M 2.24M 2.26M 45.65K 46.90K 56.81K 46.13K — — — — — — 755.52K 775.50K
Charles Schwab Investment Management 312.77K 338.03K 360.18K 372.32K 390.83K 398.34K 400.47K 411.29K 410.38K 433.97K 488.91K 649.25K 658.83K 673.22K 672.37K 640.95K 636.60K 636.62K 635.97K 627.58K
Baron Funds 2.05M 2.05M 2.09M 2.42M 2.15M 2.06M 1.73M 1.48M 1.67M 1.89M 1.85M 1.21M 1.21M 1.20M 1.20M 1.23M 1.30M 835.82K 645.07K 606.92K
Northern Trust Corp 483.97K 469.02K 463.25K 455.83K 458.81K 469.82K 462.20K 459.16K 314.08K 342.11K 337.41K 359.22K 576.78K 593.46K 591.05K 546.92K 549.75K 517.78K 548.06K 597.75K
BNY Mellon 1.56M 2.24M 2.36M 2.13M 2.00M 1.93M 1.85M 786.11K 784.85K 766.76K 626.23K 567.24K 353.95K 327.52K 312.01K 312.82K 311.12K 322.30K 314.40K 314.22K
UBS Group AG 128.01K 219.27K 19.02K 20.74K 15.61K 16.94K 23.10K 16.57K 1.16K 21.51K 31.08K 12.39K 34.90K 533.25K 560.72K 168.33K 240.35K 251.23K 233.07K 274.80K
Principal Global Investors 194.08K 192.41K 192.90K 376.11K 224.62K 226.59K 229.10K 217.86K 272.19K 268.62K 269.76K 257.87K 238.37K 245.88K 274.95K 282.60K 283.28K 262.29K 257.10K 258.56K
Royce & Associates — — — — — 106.20K 122.30K 142.30K 200.82K 208.72K 213.43K 219.36K 221.28K 262.66K 257.56K 235.46K 208.46K 197.08K 219.98K 238.33K
Bank of America Corp 644.28K 3.02M 796.97K 161.66K 141.84K 136.99K 152.55K 43.64K 108.85K 60.99K 157.15K 214.93K 518.92K 279.38K 255.08K 300.54K 252.49K 246.74K 294.92K 223.53K
PSP Investments — — — — — — — — 63.23K 108.25K 107.08K 114.90K 107.10K 126.49K 160.83K 173.20K 205.64K 183.03K 188.96K 181.54K
JPMorgan Chase & Co 108.85K 76.92K 85.19K 84.67K 83.30K 83.93K 2.76K 132.59K 29.05K 33.57K 19.16K 44.49K 46.22K 146.62K 95.92K 124.97K 181.77K 109.13K — 193.47K
Deutsche Bank AG 15.56K 7.06K 2.78K 2.52K 316 2.18K 2.18K 2.31K 25.20K 24.15K 24.83K 45.60K 52.09K 151.48K 56.23K 40.30K 45.10K 128.71K 127.59K 142.68K
Wells Fargo & Co 2.23K 1.75K 6.57K 2.11K 1.78K 1.38K 877 850 582 3.91K 6.24K 36.22K 39.65K 44.69K 45.14K 50.76K 62.51K 148.99K 123.72K 136.98K

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