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, Q2 2025
Institutional positions in Merus N.V. as of Jun 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
- Institutional holders
- 201
- +18 vs. Q1 2025
- Shares held
- 74.8M
- +3.98M (+5.6%) vs. Q1 2025
- Total value
- $3.93B
- +$952.5M (+31.9%) vs. Q1 2025
- New holders
- 47
- 76 more added
- Sold out
- 29
- 65 more reduced
2 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Merus N.V.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 7,490,377 | $394.0M | 0.02% | +523,463+7.5% | Added |
| Paradigm Biocapital Advisors LP | 4,281,954 | $225.2M | 9.62% | +912,255+27.1% | Added |
| RTW Investments, LP | 4,000,553 | $210.4M | 3.00% | −168,840−4.0% | Reduced |
| Wellington Management Group LLP | 3,726,723 | $196.0M | 0.04% | −991,449−21.0% | Reduced |
| Commodore Capital LP | 3,525,000 | $185.4M | 13.09% | −947,840−21.2% | Reduced |
| Deerfield Management Company, L.P. (Series C) | 3,384,628 | $178.0M | 3.23% | +210,700+6.6% | Added |
| Avoro Capital Advisors LLC | 3,155,555 | $166.0M | 2.91% | +155,555+5.2% | Added |
| Price T Rowe Associates Inc | 2,262,011 | $119.0M | 0.01% | +1,166,269+106.4% | Added |
| Holocene Advisors, LP | 2,225,241 | $117.0M | 0.29% | +351,616+18.8% | Added |
| Westfield Capital Management Co LP | 2,042,388 | $107.4M | 0.45% | +541,168+36.0% | Added |
| Franklin Resources Inc | 1,837,575 | $96.7M | 0.03% | −153,618−7.7% | Reduced |
| Polar Capital Holdings Plc | 1,611,049 | $84.7M | 0.44% | −95,813−5.6% | Reduced |
| Lynx1 Capital Management LP | 1,568,841 | $82.5M | 23.84% | 00.0% | Unchanged |
| Woodline Partners LP | 1,542,900 | $81.2M | 0.43% | +142,729+10.2% | Added |
| Federated Hermes, Inc. | 1,528,587 | $80.4M | 0.15% | +483,962+46.3% | Added |
| Driehaus Capital Management LLC | 1,366,244 | $71.9M | 0.57% | +112,095+8.9% | Added |
| Ameriprise Financial Inc | 1,133,857 | $59.6M | 0.01% | +1,031,457+1,007.3% | Added |
| Cormorant Asset Management, LP | 1,120,000 | $58.9M | 4.39% | +380,000+51.4% | Added |
| Alliancebernstein L.P. | 1,102,356 | $58.0M | 0.02% | +363,068+49.1% | Added |
| Rock Springs Capital Management LP | 1,063,608 | $55.9M | 3.49% | +82,857+8.4% | Added |
| BlackRock, Inc. | 1,050,942 | $55.3M | 0.00% | −640,927−37.9% | Reduced |
| Pictet Asset Management Holding SA | 915,252 | $48.1M | 0.05% | −116,849−11.3% | Reduced |
| Siren, L.L.C. | 853,467 | $44.9M | 2.32% | −190,000−18.2% | Reduced |
| Adage Capital Partners GP, L.L.C. | 833,397 | $43.8M | 0.07% | +833,397 | New |
| Invesco Ltd. | 833,361 | $43.8M | 0.01% | +5,144+0.6% | Added |
| Janus Henderson Group PLC | 829,558 | $43.6M | 0.02% | +447,747+117.3% | Added |
| Samlyn Capital, LLC | 765,185 | $40.2M | 0.58% | −1,614,243−67.8% | Reduced |
| Novo Holdings A/S | 750,000 | $39.5M | 2.78% | −39,129−5.0% | Reduced |
| Silverarc Capital Management, LLC | 741,972 | $39.0M | 7.99% | −69,049−8.5% | Reduced |
| Perceptive Advisors LLC | 708,176 | $37.3M | 1.40% | +17,691+2.6% | Added |
| JPMorgan Chase & Co | 690,945 | $36.3M | 0.00% | +395,822+134.1% | Added |
| Caligan Partners LP | 656,999 | $34.6M | 6.71% | +280,045+74.3% | Added |
| Tang Capital Management LLC | 600,000 | $31.6M | 1.60% | +500,000+500.0% | Added |
| UBS Group AG | 577,694 | $30.4M | 0.01% | −285,054−33.0% | Reduced |
| Baker Bros. Advisors LP | 574,377 | $30.2M | 0.29% | +350,877+157.0% | Added |
| Capital International Investors | 491,244 | $25.8M | 0.00% | +491,244 | New |
| Morgan Stanley | 459,216 | $24.2M | 0.00% | −344,372−42.9% | Reduced |
| T. Rowe Price Investment Management, Inc. | 456,265 | $24.0M | 0.02% | −53,496−10.5% | Reduced |
| Gilead Sciences, Inc. | 452,527 | $23.8M | 1.86% | 00.0% | Unchanged |
| Sofinnova Investments, Inc. | 404,562 | $21.3M | 1.45% | +404,562 | New |
| DAFNA Capital Management LLC | 398,804 | $21.0M | 5.79% | −63,000−13.6% | Reduced |
| Darwin Global Management, Ltd. | 395,738 | $21.0M | 0.88% | +395,738 | New |
| Octagon Capital Advisors LP | 389,000 | $20.5M | 4.49% | +81,000+26.3% | Added |
| Boxer Capital Management, LLC | 365,000 | $19.2M | 9.66% | −335,000−47.9% | Reduced |
| Citadel Advisors LLC | 335,594 | $17.7M | 0.02% | +308,605+1,143.4% | Added |
| Artia Global Partners LP | 296,750 | $15.6M | 4.01% | −127,890−30.1% | Reduced |
| First Turn Management, LLC | 292,964 | $15.4M | 2.87% | −170,996−36.9% | Reduced |
| Deep Track Capital, LP | 275,000 | $14.5M | 0.47% | +275,000 | New |
| Boothbay Fund Management, LLC | 272,855 | $14.4M | 0.45% | +112,855+70.5% | Added |
| StemPoint Capital LP | 266,094 | $14.0M | 4.51% | −80,662−23.3% | Reduced |
| Vanguard Group Inc | 265,361 | $14.0M | 0.00% | +5,571+2.1% | Added |
| TimesSquare Capital Management, LLC | 242,698 | $12.8M | 0.18% | −101,007−29.4% | Reduced |
| State Street Corp | 241,116 | $12.7M | 0.00% | +8,366+3.6% | Added |
| Voya Investment Management LLC | 233,471 | $12.3M | 0.01% | +155,191+198.3% | Added |
| Lord, Abbett & Co. LLC | 226,001 | $11.9M | 0.04% | +226,001 | New |
| UBS Asset Management Americas Inc | 224,475 | $11.8M | 0.00% | +111,953+99.5% | Added |
| Saturn V Capital Management LLC | 224,260 | $11.8M | 4.78% | −98,951−30.6% | Reduced |
| Carmignac Gestion | 214,722 | $11.3M | 0.17% | +93,561+77.2% | Added |
| Two Sigma Advisers, LP | 194,800 | $10.2M | 0.02% | −359,600−64.9% | Reduced |
| Decheng Capital LLC | 189,098 | $9.95M | 2.51% | 00.0% | Unchanged |
| PFM Health Sciences, LP | 183,882 | $9.67M | 0.84% | +183,882 | New |
| Impax Asset Management Group plc | 180,000 | $9.47M | 0.05% | 00.0% | Unchanged |
| Point72 Asset Management, L.P. | 170,777 | $8.98M | 0.02% | +170,777 | New |
| Parkman Healthcare Partners LLC | 162,980 | $8.57M | 0.99% | +134,750+477.3% | Added |
| Nan Fung Trinity (HK) Ltd | 150,338 | $7.91M | 0.95% | +150,338 | New |
| Bank of America Corp | 149,962 | $7.89M | 0.00% | +105,877+240.2% | Added |
| State of Wisconsin Investment Board | 149,543 | $7.87M | 0.02% | −8,765−5.5% | Reduced |
| D. E. Shaw & Co., Inc. | 147,902 | $7.78M | 0.01% | +96,885+189.9% | Added |
| Ally Bridge Group (NY) LLC | 140,208 | $7.37M | 6.14% | +62,312+80.0% | Added |
| BNP Paribas Arbitrage, SA | 132,576 | $6.97M | 0.01% | +130,987+8,243.4% | Added |
| Eversept Partners, LP | 130,924 | $6.89M | 0.69% | +60,595+86.2% | Added |
| Royal Bank of Canada | 126,252 | $6.64M | 0.00% | +126,252 | New |
| Standard Life Aberdeen plc | 125,768 | $6.62M | 0.01% | −46,295−26.9% | Reduced |
| Alyeska Investment Group, L.P. | 125,000 | $6.58M | 0.02% | +56,818+83.3% | Added |
| Two Sigma Investments, LP | 119,094 | $6.26M | 0.01% | −206,767−63.5% | Reduced |
| CenterBook Partners LP | 117,056 | $6.16M | 0.34% | +25,968+28.5% | Added |
| Rhenman & Partners Asset Management AB | 116,000 | $6.10M | 0.77% | +41,500+55.7% | Added |
| Deutsche Bank AG | 113,508 | $5.97M | 0.00% | +359+0.3% | Added |
| Victory Capital Management Inc | 111,440 | $5.86M | 0.00% | +102,160+1,100.9% | Added |
| Goldman Sachs Group Inc | 106,618 | $5.61M | 0.00% | −18,177−14.6% | Reduced |
| ExodusPoint Capital Management, LP | 98,529 | $5.18M | 0.06% | +52,905+116.0% | Added |
| Swiss National Bank | 92,354 | $4.86M | 0.00% | −500−0.5% | Reduced |
| Moody Aldrich Partners LLC | 92,009 | $4.84M | 0.94% | −16,272−15.0% | Reduced |
| HighVista Strategies LLC | 89,762 | $4.72M | 1.73% | +34,723+63.1% | Added |
| TD Asset Management Inc | 89,110 | $4.69M | 0.00% | +17,852+25.1% | Added |
| Granahan Investment Management Inc | 80,619 | $4.24M | 0.17% | −15,101−15.8% | Reduced |
| Readystate Asset Management LP | 78,500 | $4.13M | 0.17% | +78,500 | New |
| AXA S.A. | 75,024 | $3.95M | 0.01% | +10,080+15.5% | Added |
| Atom Investors LP | 73,789 | $3.88M | 0.34% | −40,369−35.4% | Reduced |
| Affinity Asset Advisors, LLC | 70,000 | $3.68M | 0.54% | −251,962−78.3% | Reduced |
| Troluce Capital Advisors LLC | 70,000 | $3.68M | 1.87% | +70,000 | New |
| Aquatic Capital Management LLC | 63,260 | $3.33M | 0.07% | +47,228+294.6% | Added |
| Sio Capital Management, LLC | 62,719 | $3.30M | 1.32% | +62,719 | New |
| Geode Capital Management, LLC | 60,952 | $3.20M | 0.00% | +8,266+15.7% | Added |
| Manufacturers Life Insurance Company, The | 59,893 | $3.15M | 0.00% | +9,987+20.0% | Added |
| HealthInvest Partners AB | 59,889 | $3.15M | 1.35% | +24,597+69.7% | Added |
| Harbor Capital Advisors, Inc. | 56,421 | $2.97M | 0.12% | −7,953−12.4% | Reduced |
| DekaBank Deutsche Girozentrale | 56,000 | $2.89M | 0.01% | 00.0% | Unchanged |
| Nuveen, LLC | 52,034 | $2.74M | 0.00% | +52,034 | New |
| NEOS Investment Management LLC | 51,215 | $2.69M | 0.03% | +5,657+12.4% | Added |