Mercury Systems Inc
MRCY- Exchange
- Nasdaq
- Industry
- Electronic Components & Accessories
- SEC CIK
- 0001049521
In the last 90 days, Mercury Systems Inc insiders filed 0 open-market purchases and 16 sales; 392 institutions reported holding it in 13F filings for Q2 2026, worth $8.01B in total; no superinvestor holds it.
13F holders, Q3 2023
Institutional positions in Mercury Systems Inc as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 217
- −17 vs. Q2 2023
- Shares held
- 59.8M
- +7.96M (+15.4%) vs. Q2 2023
- Total value
- $2.22B
- +$424.2M (+23.7%) vs. Q2 2023
- New holders
- 34
- 95 more added
- Sold out
- 51
- 63 more reduced
2 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MRCY on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 392 | $8.01B |
| Q1 2026 | 357 | $4.75B |
| Q4 2025 | 347 | $4.72B |
| Q3 2025 | 326 | $5.02B |
| Q2 2025 | 285 | $3.50B |
| Q1 2025 | 253 | $2.72B |
| Q4 2024 | 243 | $2.66B |
| Q3 2024 | 245 | $2.33B |
| Q2 2024 | 232 | $1.75B |
| Q1 2024 | 222 | $1.84B |
| Q4 2023 | 219 | $2.23B |
| Q3 2023 | 217 | $2.22B |
| Q2 2023 | 236 | $1.95B |
| Q1 2023 | 245 | $2.94B |
| Q4 2022 | 236 | $2.61B |
| Q3 2022 | 235 | $2.33B |
| Q2 2022 | 254 | $3.65B |
| Q1 2022 | 253 | $3.77B |
| Q4 2021 | 252 | $3.14B |
| Q3 2021 | 251 | $2.51B |
| Q2 2021 | 255 | $3.48B |
| Q1 2021 | 282 | $3.75B |
Institutions, Q3 2023
Shares, value and share of portfolio for each institution holding Mercury Systems Inc; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock Inc. | 7,193,274 | $266.8M | 0.01% | +1,399,643+24.2% | Added |
| William Blair Investment Management, LLC | 6,749,562 | $250.3M | 0.83% | +1,376,905+25.6% | Added |
| Vanguard Group Inc | 5,615,965 | $208.3M | 0.01% | +429,532+8.3% | Added |
| JANA Partners Management, LP | 4,705,249 | $174.5M | 12.45% | +4,705,249 | New |
| State Street Corp | 3,048,997 | $113.1M | 0.01% | +468,013+18.1% | Added |
| Starboard Value LPSuperinvestorStarboard Value | 2,308,800 | $85.6M | 2.19% | −527,200−18.6% | Reduced |
| Conestoga Capital Advisors, LLC | 2,161,486 | $80.2M | 1.38% | −314,225−12.7% | Reduced |
| Victory Capital Management Inc | 1,772,694 | $65.7M | 0.08% | +52,079+3.0% | Added |
| Bamco Inc | 1,674,236 | $62.1M | 0.18% | +197,600+13.4% | Added |
| Dimensional Fund Advisors LP | 1,648,955 | $61.2M | 0.02% | +80,799+5.2% | Added |
| Westwood Holdings Group Inc. | 1,345,963 | $49.9M | 0.47% | +354,336+35.7% | Added |
| Segall Bryant & Hamill, LLC | 1,264,156 | $46.9M | 0.54% | +631,392+99.8% | Added |
| Snyder Capital Management L P | 1,050,433 | $39.0M | 0.88% | +168,311+19.1% | Added |
| Royal Bank of Canada | 887,865 | $32.9M | 0.01% | +183,918+26.1% | Added |
| Cooper Creek Partners Management LLC | 870,936 | $32.3M | 1.97% | +472,803+118.8% | Added |
| Manufacturers Life Insurance Company, The | 824,082 | $30.6M | 0.02% | +277,689+50.8% | Added |
| Geode Capital Management, LLC | 791,915 | $29.4M | 0.00% | −73,112−8.5% | Reduced |
| Bank of New York Mellon Corp | 784,854 | $29.1M | 0.01% | −1,255−0.2% | Reduced |
| Ranger Investment Management, L.P. | 653,108 | $24.2M | 1.61% | −24,100−3.6% | Reduced |
| Neuberger Berman Group LLC | 591,397 | $21.9M | 0.02% | +10,968+1.9% | Added |
| Aristotle Capital Boston, LLC | 528,066 | $19.6M | 0.63% | +35,744+7.3% | Added |
| American Century Companies Inc | 492,779 | $18.3M | 0.01% | +17,522+3.7% | Added |
| Norges Bank | 466,570 | $17.3M | 0.00% | +3,200+0.7% | Added |
| Invesco Ltd. | 453,859 | $16.8M | 0.00% | +39,462+9.5% | Added |
| WCM Investment Management, LLC | 435,821 | $16.1M | 0.05% | +152,712+53.9% | Added |
| Ameriprise Financial Inc | 424,906 | $15.8M | 0.01% | +163,330+62.4% | Added |
| FMR LLC | 411,803 | $15.3M | 0.00% | −4,319−1.0% | Reduced |
| Charles Schwab Investment Management Inc | 410,385 | $15.2M | 0.00% | −906−0.2% | Reduced |
| Nuveen Asset Management, LLC | 367,936 | $13.6M | 0.00% | +1,871+0.5% | Added |
| Citadel Advisors LLC | 347,804 | $12.9M | 0.01% | −174,104−33.4% | Reduced |
| Morgan Stanley | 342,511 | $12.7M | 0.00% | +145,095+73.5% | Added |
| Northern Trust Corp | 314,082 | $11.6M | 0.00% | −145,079−31.6% | Reduced |
| Schonfeld Strategic Advisors LLC | 292,107 | $10.8M | 0.10% | +288,752+8,606.6% | Added |
| Clearline Capital LP | 289,479 | $10.7M | 1.06% | −154,056−34.7% | Reduced |
| Staley Capital Advisers Inc | 288,070 | $10.7M | 0.59% | +188,070+188.1% | Added |
| Mesirow Institutional Investment Management, Inc. | 277,357 | $10.3M | 1.04% | +277,357 | New |
| Marshall Wace, LLP | 273,572 | $10.1M | 0.02% | +148,305+118.4% | Added |
| Two Sigma Investments, LP | 272,855 | $10.1M | 0.03% | +272,855 | New |
| Principal Financial Group Inc | 272,185 | $10.1M | 0.01% | +54,325+24.9% | Added |
| Cambiar Investors LLC | 271,880 | $10.1M | 0.43% | +17,890+7.0% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 260,500 | $9.66M | 0.04% | +138,931+114.3% | Added |
| Crestline Management, LP | 258,545 | $9.59M | 1.15% | −82,750−24.2% | Reduced |
| Kennedy Capital Management, Inc. | 212,970 | $7.90M | 0.19% | −53,493−20.1% | Reduced |
| Comerica Bank | 204,811 | $7.60M | 0.04% | +198,708+3,255.9% | Added |
| Royce & Associates LP | 200,818 | $7.45M | 0.08% | +58,518+41.1% | Added |
| 13D Management LLC | 199,269 | $7.39M | 4.60% | +199,269 | New |
| Guggenheim Capital LLC | 164,054 | $6.08M | 0.05% | +50,615+44.6% | Added |
| SEI Investments Co | 163,397 | $6.06M | 0.01% | +22,599+16.1% | Added |
| Fred Alger Management, LLC | 157,880 | $5.86M | 0.03% | −370.0% | Reduced |
| Legal & General Group Plc | 156,199 | $5.79M | 0.00% | +60,689+63.5% | Added |
| Rhumbline Advisers | 136,898 | $5.08M | 0.01% | −37,000−21.3% | Reduced |
| Blair William & Co | 130,607 | $4.84M | 0.02% | −16,784−11.4% | Reduced |
| King Luther Capital Management Corp | 129,187 | $4.79M | 0.02% | +25,743+24.9% | Added |
| Tudor Investment Corp Et Al | 117,217 | $4.35M | 0.06% | +60,924+108.2% | Added |
| Raymond James & Associates | 115,989 | $4.30M | 0.00% | +657+0.6% | Added |
| Swiss National Bank | 115,100 | $4.27M | 0.00% | +1,300+1.1% | Added |
| Bank of America Corp | 108,846 | $4.04M | 0.00% | +65,203+149.4% | Added |
| Goldman Sachs Group Inc | 106,601 | $3.95M | 0.00% | +988+0.9% | Added |
| D. E. Shaw & Co., Inc. | 100,175 | $3.72M | 0.01% | −23,871−19.2% | Reduced |
| EVR Research LP | 100,000 | $3.71M | 0.98% | +100,000 | New |
| Credit Suisse AG | 96,746 | $3.59M | 0.00% | −11,745−10.8% | Reduced |
| Millennium Management LLC | 96,069 | $3.56M | 0.00% | +53,165+123.9% | Added |
| Adage Capital Partners GP, L.L.C. | 95,383 | $3.54M | 0.01% | +65,383+217.9% | Added |
| State of Wisconsin Investment Board | 88,400 | $3.28M | 0.01% | +4,209+5.0% | Added |
| Redwood Investment Management, LLC | 86,698 | $3.22M | 0.28% | +86,698 | New |
| Mutual of America Capital Management LLC | 79,444 | $2.95M | 0.04% | −36,607−31.5% | Reduced |
| California Public Employees Retirement System | 78,648 | $2.92M | 0.00% | −8,947−10.2% | Reduced |
| Jump Financial, LLC | 73,726 | $2.73M | 0.10% | +15,134+25.8% | Added |
| Public Employees Retirement System of Ohio | 72,306 | $2.68M | 0.01% | +13,614+23.2% | Added |
| Russell Investments Group, Ltd. | 70,477 | $2.61M | 0.01% | −7,756−9.9% | Reduced |
| HRT Financial LP | 67,271 | $2.50M | 0.02% | +67,271 | New |
| B. Metzler seel. Sohn & Co. AG | 66,949 | $2.48M | 0.04% | −23,953−26.4% | Reduced |
| Citigroup Inc | 65,281 | $2.42M | 0.00% | +26,983+70.5% | Added |
| Public Sector Pension Investment Board | 63,234 | $2.35M | 0.02% | +63,234 | New |
| State of New Jersey Common Pension Fund D | 63,075 | $2.34M | 0.01% | +4,050+6.9% | Added |
| Bullseye Asset Management LLC | 62,841 | $2.33M | 1.30% | 00.0% | Unchanged |
| New York State Teachers Retirement System | 61,611 | $2.29M | 0.01% | +3,887+6.7% | Added |
| UBS Asset Management Americas Inc | 59,034 | $2.19M | 0.00% | +1,904+3.3% | Added |
| Prudential Financial Inc | 58,881 | $2.18M | 0.00% | +58,881 | New |
| California State Teachers Retirement System | 57,344 | $2.13M | 0.00% | −5,311−8.5% | Reduced |
| Barclays PLC | 56,391 | $2.09M | 0.00% | −11,371−16.8% | Reduced |
| Jane Street Group, LLC | 55,628 | $2.06M | 0.00% | −1,083−1.9% | Reduced |
| Quantbot Technologies LP | 53,424 | $1.98M | 0.13% | +8,878+19.9% | Added |
| State Board of Administration of Florida Retirement System | 51,345 | $1.90M | 0.00% | +70+0.1% | Added |
| Quadrature Capital Ltd | 47,079 | $1.75M | 0.04% | −11,194−19.2% | Reduced |
| Thrivent Financial for Lutherans | 46,844 | $1.74M | 0.00% | +31,825+211.9% | Added |
| Wellington Management Group LLP | 45,652 | $1.69M | 0.00% | −2,214,914−98.0% | Reduced |
| Great West Life Assurance Co | 45,311 | $1.68M | 0.00% | +14,064+45.0% | Added |
| Davidson Kempner Capital Management LP | 45,208 | $1.68M | 0.03% | −163,776−78.4% | Reduced |
| Texas Permanent School Fund | 43,491 | $1.61M | 0.02% | −7,745−15.1% | Reduced |
| M&T Bank Corp | 43,009 | $1.60M | 0.01% | +7,996+22.8% | Added |
| New York State Common Retirement Fund | 42,793 | $1.59M | 0.00% | −3,607−7.8% | Reduced |
| Susquehanna International Group, LLP | 42,618 | $1.58M | 0.00% | −77,336−64.5% | Reduced |
| Holocene Advisors, LP | 40,766 | $1.51M | 0.01% | +40,766 | New |
| Algert Global LLC | 40,328 | $1.50M | 0.07% | −115,942−74.2% | Reduced |
| Oppenheimer & Co Inc | 40,099 | $1.49M | 0.03% | −1,318−3.2% | Reduced |
| Ironwood Investment Management LLC | 38,523 | $1.43M | 0.87% | +140+0.4% | Added |
| LPL Financial LLC | 38,533 | $1.40M | 0.00% | +9,984+35.0% | Added |
| Two Sigma Advisers, LP | 36,700 | $1.36M | 0.00% | +36,700 | New |
| Natixis Advisors, L.P. | 36,692 | $1.36M | 0.00% | +17,634+92.5% | Added |