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, Q1 2025
Institutional positions in Merus N.V. as of Mar 31, 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
- 185
- −6 vs. Q4 2024
- Shares held
- 70.8M
- +499.9K (+0.7%) vs. Q4 2024
- Total value
- $2.98B
- +$25.0M (+0.8%) vs. Q4 2024
- New holders
- 24
- 72 more added
- Sold out
- 30
- 63 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2024: 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, Q1 2025
Shares, value and share of portfolio for each institution holding Merus N.V.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 6,966,914 | $293.2M | 0.02% | +67,393+1.0% | Added |
| Wellington Management Group LLP | 4,718,172 | $198.6M | 0.04% | +1,220,519+34.9% | Added |
| Commodore Capital LP | 4,472,840 | $188.3M | 13.87% | +598,658+15.5% | Added |
| RTW Investments, LP | 4,169,393 | $175.5M | 2.68% | 00.0% | Unchanged |
| Paradigm Biocapital Advisors LP | 3,369,699 | $141.8M | 6.53% | +1,679,777+99.4% | Added |
| Deerfield Management Company, L.P. (Series C) | 3,173,928 | $133.6M | 2.65% | +201,141+6.8% | Added |
| Avoro Capital Advisors LLC | 3,000,000 | $126.3M | 1.97% | +875,000+41.2% | Added |
| Samlyn Capital, LLC | 2,379,428 | $100.2M | 1.65% | −288,750−10.8% | Reduced |
| Franklin Resources Inc | 1,991,193 | $83.8M | 0.02% | +6,655+0.3% | Added |
| Holocene Advisors, LP | 1,873,625 | $78.9M | 0.23% | −6,393−0.3% | Reduced |
| Polar Capital Holdings Plc | 1,706,862 | $71.8M | 0.44% | +6240.0% | Added |
| BlackRock, Inc. | 1,691,869 | $71.2M | 0.00% | +104,708+6.6% | Added |
| Lynx1 Capital Management LP | 1,568,841 | $66.0M | 23.65% | −12,000−0.8% | Reduced |
| Westfield Capital Management Co LP | 1,501,220 | $63.2M | 0.31% | +508,063+51.2% | Added |
| Woodline Partners LP | 1,400,171 | $58.9M | 0.38% | +211,653+17.8% | Added |
| Driehaus Capital Management LLC | 1,254,149 | $52.8M | 0.51% | −26,188−2.0% | Reduced |
| Price T Rowe Associates Inc | 1,095,742 | $46.1M | 0.01% | −21,078−1.9% | Reduced |
| Federated Hermes, Inc. | 1,044,625 | $44.0M | 0.09% | −548,750−34.4% | Reduced |
| Siren, L.L.C. | 1,043,467 | $43.9M | 2.48% | +259,055+33.0% | Added |
| Pictet Asset Management Holding SA | 1,032,101 | $43.4M | 0.05% | +2740.0% | Added |
| Rock Springs Capital Management LP | 980,751 | $41.3M | 2.36% | +88,202+9.9% | Added |
| UBS Group AG | 862,748 | $36.3M | 0.01% | −244,690−22.1% | Reduced |
| Invesco Ltd. | 828,217 | $34.9M | 0.01% | +41,852+5.3% | Added |
| Silverarc Capital Management, LLC | 811,021 | $34.1M | 7.13% | +130,176+19.1% | Added |
| Morgan Stanley | 803,588 | $33.8M | 0.00% | +228,388+39.7% | Added |
| Novo Holdings A/S | 789,129 | $33.2M | 2.53% | +39,129+5.2% | Added |
| Cormorant Asset Management, LP | 740,000 | $31.1M | 2.36% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 739,288 | $31.1M | 0.01% | −57,669−7.2% | Reduced |
| Boxer Capital Management, LLC | 700,000 | $29.5M | 8.86% | −1,200,000−63.2% | Reduced |
| Perceptive Advisors LLC | 690,485 | $29.1M | 1.03% | +390,485+130.2% | Added |
| Millennium Management LLC | 586,434 | $24.7M | 0.02% | −297,131−33.6% | Reduced |
| Two Sigma Advisers, LP | 554,400 | $23.3M | 0.05% | −166,400−23.1% | Reduced |
| T. Rowe Price Investment Management, Inc. | 509,761 | $21.5M | 0.01% | −298,815−37.0% | Reduced |
| First Turn Management, LLC | 463,960 | $19.5M | 3.94% | +178,801+62.7% | Added |
| DAFNA Capital Management LLC | 461,804 | $19.4M | 5.51% | +10,000+2.2% | Added |
| Gilead Sciences, Inc. | 452,527 | $19.0M | 1.61% | 00.0% | Unchanged |
| Artia Global Partners LP | 424,640 | $17.9M | 5.24% | −39,200−8.5% | Reduced |
| Janus Henderson Group PLC | 381,811 | $17.0M | 0.01% | +360,521+1,693.4% | Added |
| Soleus Capital Management, L.P. | 385,821 | $16.2M | 1.27% | +73,500+23.5% | Added |
| Caligan Partners LP | 376,954 | $15.9M | 3.31% | +121,954+47.8% | Added |
| Frazier Life Sciences Management, L.P. | 373,100 | $15.7M | 0.72% | 00.0% | Unchanged |
| StemPoint Capital LP | 346,756 | $14.6M | 4.66% | −268,056−43.6% | Reduced |
| TimesSquare Capital Management, LLC | 343,705 | $14.5M | 0.23% | +12,510+3.8% | Added |
| Two Sigma Investments, LP | 325,861 | $13.7M | 0.03% | −181,880−35.8% | Reduced |
| Saturn V Capital Management LLC | 323,211 | $13.6M | 6.87% | +88,574+37.7% | Added |
| Affinity Asset Advisors, LLC | 321,962 | $13.6M | 2.12% | −67,279−17.3% | Reduced |
| Octagon Capital Advisors LP | 308,000 | $13.0M | 2.82% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 295,123 | $12.4M | 0.00% | +269,943+1,072.1% | Added |
| Vanguard Group Inc | 259,790 | $10.9M | 0.00% | −1,838−0.7% | Reduced |
| Marshall Wace, LLP | 259,774 | $10.9M | 0.01% | −602,315−69.9% | Reduced |
| Great Point Partners LLC | 237,156 | $9.98M | 5.43% | +79,064+50.0% | Added |
| State Street Corp | 232,750 | $9.80M | 0.00% | +11,232+5.1% | Added |
| Baker Bros. Advisors LP | 223,500 | $9.41M | 0.10% | −226,500−50.3% | Reduced |
| Decheng Capital LLC | 189,098 | $7.96M | 2.23% | 00.0% | Unchanged |
| Impax Asset Management Group plc | 180,000 | $7.58M | 0.05% | 00.0% | Unchanged |
| Standard Life Aberdeen plc | 172,063 | $7.24M | 0.01% | +84,848+97.3% | Added |
| Boothbay Fund Management, LLC | 160,000 | $6.73M | 0.24% | +80,000+100.0% | Added |
| State of Wisconsin Investment Board | 158,308 | $6.66M | 0.02% | +443+0.3% | Added |
| Tri Locum Partners LP | 156,915 | $6.60M | 3.39% | −190,388−54.8% | Reduced |
| Goldman Sachs Group Inc | 124,795 | $5.25M | 0.00% | −117,398−48.5% | Reduced |
| Allostery Investments LP | 124,657 | $5.25M | 7.57% | +102,922+473.5% | Added |
| Carmignac Gestion | 121,161 | $5.13M | 0.08% | +121,161 | New |
| Nan Fung Group Holdings Ltd | 120,038 | $5.05M | 4.12% | 00.0% | Unchanged |
| Atom Investors LP | 114,158 | $4.80M | 0.59% | +12,401+12.2% | Added |
| Deutsche Bank AG | 113,149 | $4.76M | 0.00% | +93+0.1% | Added |
| UBS Asset Management Americas Inc | 112,522 | $4.74M | 0.00% | +13,778+14.0% | Added |
| Moody Aldrich Partners LLC | 108,281 | $4.56M | 0.95% | +79,286+273.4% | Added |
| Algert Global LLC | 107,101 | $4.51M | 0.11% | −66,013−38.1% | Reduced |
| Sphera Funds Management Ltd. | 106,532 | $4.48M | 1.11% | −24,000−18.4% | Reduced |
| Ameriprise Financial Inc | 102,400 | $4.31M | 0.00% | +102,400 | New |
| Tang Capital Management LLC | 100,000 | $4.21M | 0.23% | 00.0% | Unchanged |
| Granahan Investment Management Inc | 95,720 | $4.03M | 0.20% | −8,842−8.5% | Reduced |
| Swiss National Bank | 92,854 | $3.91M | 0.00% | −1,100−1.2% | Reduced |
| CenterBook Partners LP | 91,088 | $3.83M | 0.24% | −51,787−36.2% | Reduced |
| Voya Investment Management LLC | 78,280 | $3.29M | 0.00% | +16,280+26.3% | Added |
| Ally Bridge Group (NY) LLC | 77,896 | $3.28M | 2.96% | −38,900−33.3% | Reduced |
| Rhenman & Partners Asset Management AB | 74,500 | $3.14M | 0.36% | 00.0% | Unchanged |
| TD Asset Management Inc | 71,258 | $3.00M | 0.00% | −3,982−5.3% | Reduced |
| Eversept Partners, LP | 70,329 | $2.96M | 0.33% | +2,071+3.0% | Added |
| Alyeska Investment Group, L.P. | 68,182 | $2.87M | 0.01% | −68,182−50.0% | Reduced |
| Northern Trust Corp | 67,620 | $2.85M | 0.00% | −8,715−11.4% | Reduced |
| ADAR1 Capital Management, LLC | 66,960 | $2.82M | 0.54% | −14,500−17.8% | Reduced |
| AXA S.A. | 64,944 | $2.73M | 0.01% | +64,944 | New |
| Platinum Investment Management Ltd | 64,841 | $2.73M | 0.16% | −4,244−6.1% | Reduced |
| Harbor Capital Advisors, Inc. | 64,374 | $2.71M | 0.12% | +21,166+49.0% | Added |
| Trexquant Investment LP | 62,382 | $2.63M | 0.03% | −38,351−38.1% | Reduced |
| DekaBank Deutsche Girozentrale | 56,000 | $2.44M | 0.00% | 00.0% | Unchanged |
| HighVista Strategies LLC | 55,039 | $2.32M | 0.89% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 52,686 | $2.22M | 0.00% | +50+0.1% | Added |
| Verition Fund Management LLC | 51,446 | $2.17M | 0.01% | +3,282+6.8% | Added |
| Alps Advisors Inc | 51,020 | $2.15M | 0.01% | −4,341−7.8% | Reduced |
| D. E. Shaw & Co., Inc. | 51,017 | $2.15M | 0.00% | −308,031−85.8% | Reduced |
| Manufacturers Life Insurance Company, The | 49,906 | $2.10M | 0.00% | +7,821+18.6% | Added |
| Fred Alger Management, LLC | 47,956 | $2.02M | 0.01% | +668+1.4% | Added |
| Gilder Gagnon Howe & Co LLC | 45,942 | $1.93M | 0.03% | +45,942 | New |
| ExodusPoint Capital Management, LP | 45,624 | $1.92M | 0.03% | +45,624 | New |
| NEOS Investment Management LLC | 45,558 | $1.92M | 0.04% | +31,067+214.4% | Added |
| Bank of America Corp | 44,085 | $1.86M | 0.00% | +6,280+16.6% | Added |
| Legal & General Group Plc | 43,674 | $1.84M | 0.00% | +916+2.1% | Added |
| State of New Jersey Common Pension Fund D | 41,380 | $1.74M | 0.01% | −6,888−14.3% | Reduced |