Merus N.V.
MRUSDelisted Dec 30, 2025- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001651311
Merus N.V. was delisted on Dec 30, 2025; its insiders filed their last Form 4 on Dec 30, 2025; 268 institutions reported holding it in 13F filings for Q3 2025, worth $6.70B in total; Soros Fund Management was the only superinvestor holding it.
13F holders, Q3 2025
Institutional positions in Merus N.V. as of Sep 30, 2025. 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
MRUS is no longer listed, so this page shows Q3 2025. 13F filings for later quarters list far fewer holders.
- Institutional holders
- 268
- +67 vs. Q2 2025
- Shares held
- 71.1M
- −3.66M (−4.9%) vs. Q2 2025
- Total value
- $6.70B
- +$2.76B (+70.2%) vs. Q2 2025
- New holders
- 106
- 67 more added
- Sold out
- 39
- 73 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting MRUS 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 | 0 | $0 |
| Q1 2026 | 0 | $0 |
| Q4 2025 | 10 | $5.73M |
| Q3 2025 | 268 | $6.70B |
| Q2 2025 | 201 | $3.93B |
| Q1 2025 | 185 | $2.98B |
| Q4 2024 | 192 | $2.96B |
| Q3 2024 | 189 | $3.45B |
| Q2 2024 | 179 | $3.94B |
| Q1 2024 | 156 | $2.31B |
| Q4 2023 | 131 | $1.41B |
| Q3 2023 | 113 | $1.12B |
| Q2 2023 | 114 | $1.09B |
| Q1 2023 | 104 | $672.0M |
| Q4 2022 | 91 | $563.8M |
| Q3 2022 | 100 | $687.4M |
| Q2 2022 | 93 | $793.4M |
| Q1 2022 | 95 | $878.1M |
| Q4 2021 | 103 | $1.05B |
| Q3 2021 | 64 | $487.8M |
| Q2 2021 | 68 | $564.3M |
| Q1 2021 | 59 | $558.3M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Merus N.V.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Versor Investments LP | 198,789 | $18.7M | 3.45% | +198,789 | New |
| CNH Partners LLC | 204,994 | $19.3M | 0.49% | +204,994 | New |
| Voya Investment Management LLC | 210,304 | $19.8M | 0.02% | −23,167−9.9% | Reduced |
| Caligan Partners LP | 216,954 | $20.4M | 2.83% | −440,045−67.0% | Reduced |
| DAFNA Capital Management LLC | 220,451 | $20.8M | 5.13% | −178,353−44.7% | Reduced |
| First Light Asset Management, LLC | 224,080 | $21.1M | 1.99% | +224,080 | New |
| Readystate Asset Management LP | 238,696 | $22.5M | 1.09% | +160,196+204.1% | Added |
| Sand Grove Capital Management LLP | 239,378 | $22.5M | 11.01% | +239,378 | New |
| Vivaldi Asset Management, LLC | 245,354 | $23.1M | 1.49% | +245,354 | New |
| State Street Corp | 247,302 | $23.3M | 0.00% | +6,186+2.6% | Added |
| Point72 Asset Management, L.P. | 254,751 | $24.0M | 0.05% | +83,974+49.2% | Added |
| Vanguard Group Inc | 282,882 | $26.6M | 0.00% | +17,521+6.6% | Added |
| Affinity Asset Advisors, LLC | 285,769 | $26.9M | 2.50% | +215,769+308.2% | Added |
| Artia Global Partners LP | 296,750 | $27.9M | 4.92% | 00.0% | Unchanged |
| Octagon Capital Advisors LP | 308,000 | $29.0M | 4.53% | −81,000−20.8% | Reduced |
| Twin Securities, Inc. | 310,263 | $29.2M | 14.72% | +310,263 | New |
| Bank of America Corp | 311,566 | $29.3M | 0.00% | +161,604+107.8% | Added |
| Pictet Asset Management Holding SA | 330,228 | $31.1M | 0.03% | −585,024−63.9% | Reduced |
| Absolute Gestao de Investimentos Ltda. | 330,588 | $31.1M | 4.11% | +330,588 | New |
| FIL Ltd | 338,000 | $31.8M | 0.03% | +338,000 | New |
| Man Group plc | 361,703 | $34.1M | 0.07% | +361,703 | New |
| First Turn Management, LLC | 372,022 | $35.0M | 5.26% | +79,058+27.0% | Added |
| LMR Partners LLP | 390,465 | $36.8M | 0.47% | +390,465 | New |
| Soros Fund Management LLCSuperinvestorSoros Fund Management | 405,000 | $38.1M | 0.60% | +405,000 | New |
| Qube Research & Technologies Ltd | 422,277 | $39.8M | 0.06% | +418,002+9,777.8% | Added |
| Gilead Sciences, Inc. | 452,527 | $42.6M | 2.38% | 00.0% | Unchanged |
| Wellington Management Group LLP | 459,087 | $43.2M | 0.01% | −3,267,636−87.7% | Reduced |
| Verition Fund Management LLC | 498,900 | $47.0M | 0.27% | +494,923+12,444.6% | Added |
| Franklin Resources Inc | 501,615 | $47.2M | 0.01% | −1,335,960−72.7% | Reduced |
| Invesco Ltd. | 548,521 | $51.6M | 0.01% | −284,840−34.2% | Reduced |
| Baker Bros. Advisors LP | 574,377 | $54.1M | 0.39% | 00.0% | Unchanged |
| UBS Group AG | 581,071 | $54.7M | 0.01% | +3,377+0.6% | Added |
| Rock Springs Capital Management LP | 597,051 | $56.2M | 3.29% | −466,557−43.9% | Reduced |
| Adage Capital Partners GP, L.L.C. | 600,000 | $56.5M | 0.09% | −233,397−28.0% | Reduced |
| Tang Capital Management LLC | 600,000 | $56.5M | 2.17% | 00.0% | Unchanged |
| Citadel Advisors LLC | 614,538 | $57.9M | 0.05% | +278,944+83.1% | Added |
| Balyasny Asset Management LLC | 644,283 | $60.7M | 0.12% | +644,283 | New |
| UBS Oconnor LLC | 654,126 | $61.6M | 1.85% | +637,422+3,816.0% | Added |
| Janus Henderson Group PLC | 662,140 | $62.3M | 0.03% | −167,418−20.2% | Reduced |
| Millennium Management LLC | 699,029 | $65.8M | 0.05% | +683,233+4,325.4% | Added |
| Tudor Investment Corp Et Al | 731,150 | $68.8M | 0.45% | +731,150 | New |
| Hudson Bay Capital Management LP | 740,394 | $69.7M | 0.42% | +725,843+4,988.3% | Added |
| Novo Holdings A/S | 750,000 | $70.6M | 4.55% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 756,013 | $71.2M | 0.00% | +65,068+9.4% | Added |
| Alpine Associates Management Inc. | 835,600 | $78.7M | 4.79% | +835,600 | New |
| TIG Advisors, LLC | 868,145 | $81.7M | 5.05% | +868,145 | New |
| Ameriprise Financial Inc | 898,822 | $84.6M | 0.02% | −235,035−20.7% | Reduced |
| Pentwater Capital Management LP | 970,000 | $91.3M | 0.82% | +970,000 | New |
| Magnetar Financial LLC | 1,045,209 | $98.4M | 0.60% | +1,045,209 | New |
| Omni Event Management Ltd | 1,053,500 | $99.2M | 11.46% | +1,053,500 | New |
| Price T Rowe Associates Inc | 1,087,143 | $102.4M | 0.01% | −1,174,868−51.9% | Reduced |
| Goldman Sachs Group Inc | 1,195,408 | $112.5M | 0.02% | +1,088,790+1,021.2% | Added |
| Alliancebernstein L.P. | 1,196,325 | $112.6M | 0.04% | +93,969+8.5% | Added |
| Davidson Kempner Capital Management LP | 1,233,909 | $116.2M | 1.63% | +1,233,909 | New |
| Federated Hermes, Inc. | 1,249,162 | $117.6M | 0.21% | −279,425−18.3% | Reduced |
| Perceptive Advisors LLC | 1,353,093 | $127.4M | 3.68% | +644,917+91.1% | Added |
| Lynx1 Capital Management LP | 1,534,141 | $144.4M | 29.40% | −34,700−2.2% | Reduced |
| Glazer Capital, LLC | 1,619,372 | $152.5M | 5.12% | +1,619,372 | New |
| Woodline Partners LP | 1,674,167 | $157.6M | 0.74% | +131,267+8.5% | Added |
| RTW Investments, LP | 2,025,277 | $190.7M | 2.35% | −1,975,276−49.4% | Reduced |
| Westfield Capital Management Co LP | 2,132,489 | $200.8M | 0.84% | +90,101+4.4% | Added |
| BlackRock, Inc. | 2,172,015 | $204.5M | 0.00% | +1,121,073+106.7% | Added |
| FMR LLC | 2,810,935 | $264.6M | 0.01% | −4,679,442−62.5% | Reduced |
| HBK Investments L P | 2,850,000 | $268.3M | 3.95% | +2,850,000 | New |
| Deerfield Management Company, L.P. (Series C) | 3,046,916 | $286.9M | 4.40% | −337,712−10.0% | Reduced |
| Commodore Capital LP | 3,525,000 | $331.9M | 16.20% | 00.0% | Unchanged |
| Avoro Capital Advisors LLC | 3,542,500 | $333.5M | 4.31% | +386,945+12.3% | Added |
| Paradigm Biocapital Advisors LP | 4,373,770 | $411.8M | 12.18% | +91,816+2.1% | Added |
| Polar Capital Holdings Plc | 0 | $0 | 0.00% | −1,611,049−100.0% | Sold out |
| Cormorant Asset Management, LP | 0 | $0 | 0.00% | −1,120,000−100.0% | Sold out |
| Siren, L.L.C. | 0 | $0 | 0.00% | −853,467−100.0% | Sold out |
| Silverarc Capital Management, LLC | 0 | $0 | 0.00% | −741,972−100.0% | Sold out |
| Capital International Investors | 0 | $0 | 0.00% | −491,244−100.0% | Sold out |
| Darwin Global Management, Ltd. | 0 | $0 | 0.00% | −395,738−100.0% | Sold out |
| Deep Track Capital, LP | 0 | $0 | 0.00% | −275,000−100.0% | Sold out |
| StemPoint Capital LP | 0 | $0 | 0.00% | −266,094−100.0% | Sold out |
| UBS Asset Management Americas Inc | 0 | $0 | 0.00% | −224,475−100.0% | Sold out |
| Impax Asset Management Group plc | 0 | $0 | 0.00% | −180,000−100.0% | Sold out |
| Parkman Healthcare Partners LLC | 0 | $0 | 0.00% | −162,980−100.0% | Sold out |
| Ally Bridge Group (NY) LLC | 0 | $0 | 0.00% | −140,208−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −125,000−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −75,024−100.0% | Sold out |
| Atom Investors LP | 0 | $0 | 0.00% | −73,789−100.0% | Sold out |
| Troluce Capital Advisors LLC | 0 | $0 | 0.00% | −70,000−100.0% | Sold out |
| Sio Capital Management, LLC | 0 | $0 | 0.00% | −62,719−100.0% | Sold out |
| Nuveen, LLC | 0 | $0 | 0.00% | −52,034−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −49,580−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −47,405−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −40,125−100.0% | Sold out |
| Soleus Capital Management, L.P. | 0 | $0 | 0.00% | −40,000−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −34,728−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −33,821−100.0% | Sold out |
| Trexquant Investment LP | 0 | $0 | 0.00% | −29,857−100.0% | Sold out |
| SummitTX Capital, L.P. | 0 | $0 | 0.00% | −25,198−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −17,573−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −13,100−100.0% | Sold out |
| Sender Co & Partners, Inc. | 0 | $0 | 0.00% | −12,996−100.0% | Sold out |
| J. Goldman & Co LP | 0 | $0 | 0.00% | −11,816−100.0% | Sold out |
| Sandia Investment Management LP | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Allostery Investments LP | 0 | $0 | 0.00% | −9,000−100.0% | Sold out |