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 |
|---|---|---|---|---|---|
| Harbor Capital Advisors, Inc. | 64,374 | $2.71M | 0.12% | +21,166+49.0% | Added |
| Platinum Investment Management Ltd | 64,841 | $2.73M | 0.16% | −4,244−6.1% | Reduced |
| AXA S.A. | 64,944 | $2.73M | 0.01% | +64,944 | New |
| ADAR1 Capital Management, LLC | 66,960 | $2.82M | 0.54% | −14,500−17.8% | Reduced |
| Northern Trust Corp | 67,620 | $2.85M | 0.00% | −8,715−11.4% | Reduced |
| Alyeska Investment Group, L.P. | 68,182 | $2.87M | 0.01% | −68,182−50.0% | Reduced |
| Eversept Partners, LP | 70,329 | $2.96M | 0.33% | +2,071+3.0% | Added |
| TD Asset Management Inc | 71,258 | $3.00M | 0.00% | −3,982−5.3% | Reduced |
| Rhenman & Partners Asset Management AB | 74,500 | $3.14M | 0.36% | 00.0% | Unchanged |
| Ally Bridge Group (NY) LLC | 77,896 | $3.28M | 2.96% | −38,900−33.3% | Reduced |
| Voya Investment Management LLC | 78,280 | $3.29M | 0.00% | +16,280+26.3% | Added |
| CenterBook Partners LP | 91,088 | $3.83M | 0.24% | −51,787−36.2% | Reduced |
| Swiss National Bank | 92,854 | $3.91M | 0.00% | −1,100−1.2% | Reduced |
| Granahan Investment Management Inc | 95,720 | $4.03M | 0.20% | −8,842−8.5% | Reduced |
| Tang Capital Management LLC | 100,000 | $4.21M | 0.23% | 00.0% | Unchanged |
| Ameriprise Financial Inc | 102,400 | $4.31M | 0.00% | +102,400 | New |
| Sphera Funds Management Ltd. | 106,532 | $4.48M | 1.11% | −24,000−18.4% | Reduced |
| Algert Global LLC | 107,101 | $4.51M | 0.11% | −66,013−38.1% | Reduced |
| Moody Aldrich Partners LLC | 108,281 | $4.56M | 0.95% | +79,286+273.4% | Added |
| UBS Asset Management Americas Inc | 112,522 | $4.74M | 0.00% | +13,778+14.0% | Added |
| Deutsche Bank AG | 113,149 | $4.76M | 0.00% | +93+0.1% | Added |
| Atom Investors LP | 114,158 | $4.80M | 0.59% | +12,401+12.2% | Added |
| Nan Fung Group Holdings Ltd | 120,038 | $5.05M | 4.12% | 00.0% | Unchanged |
| Carmignac Gestion | 121,161 | $5.13M | 0.08% | +121,161 | New |
| Allostery Investments LP | 124,657 | $5.25M | 7.57% | +102,922+473.5% | Added |
| Goldman Sachs Group Inc | 124,795 | $5.25M | 0.00% | −117,398−48.5% | Reduced |
| Tri Locum Partners LP | 156,915 | $6.60M | 3.39% | −190,388−54.8% | Reduced |
| State of Wisconsin Investment Board | 158,308 | $6.66M | 0.02% | +443+0.3% | Added |
| Boothbay Fund Management, LLC | 160,000 | $6.73M | 0.24% | +80,000+100.0% | Added |
| Standard Life Aberdeen plc | 172,063 | $7.24M | 0.01% | +84,848+97.3% | Added |
| Impax Asset Management Group plc | 180,000 | $7.58M | 0.05% | 00.0% | Unchanged |
| Decheng Capital LLC | 189,098 | $7.96M | 2.23% | 00.0% | Unchanged |
| Baker Bros. Advisors LP | 223,500 | $9.41M | 0.10% | −226,500−50.3% | Reduced |
| State Street Corp | 232,750 | $9.80M | 0.00% | +11,232+5.1% | Added |
| Great Point Partners LLC | 237,156 | $9.98M | 5.43% | +79,064+50.0% | Added |
| Marshall Wace, LLP | 259,774 | $10.9M | 0.01% | −602,315−69.9% | Reduced |
| Vanguard Group Inc | 259,790 | $10.9M | 0.00% | −1,838−0.7% | Reduced |
| JPMorgan Chase & Co | 295,123 | $12.4M | 0.00% | +269,943+1,072.1% | Added |
| Octagon Capital Advisors LP | 308,000 | $13.0M | 2.82% | 00.0% | Unchanged |
| Affinity Asset Advisors, LLC | 321,962 | $13.6M | 2.12% | −67,279−17.3% | Reduced |
| Saturn V Capital Management LLC | 323,211 | $13.6M | 6.87% | +88,574+37.7% | Added |
| Two Sigma Investments, LP | 325,861 | $13.7M | 0.03% | −181,880−35.8% | Reduced |
| TimesSquare Capital Management, LLC | 343,705 | $14.5M | 0.23% | +12,510+3.8% | Added |
| StemPoint Capital LP | 346,756 | $14.6M | 4.66% | −268,056−43.6% | Reduced |
| Frazier Life Sciences Management, L.P. | 373,100 | $15.7M | 0.72% | 00.0% | Unchanged |
| Caligan Partners LP | 376,954 | $15.9M | 3.31% | +121,954+47.8% | Added |
| Soleus Capital Management, L.P. | 385,821 | $16.2M | 1.27% | +73,500+23.5% | Added |
| Janus Henderson Group PLC | 381,811 | $17.0M | 0.01% | +360,521+1,693.4% | Added |
| Artia Global Partners LP | 424,640 | $17.9M | 5.24% | −39,200−8.5% | Reduced |
| Gilead Sciences, Inc. | 452,527 | $19.0M | 1.61% | 00.0% | Unchanged |
| DAFNA Capital Management LLC | 461,804 | $19.4M | 5.51% | +10,000+2.2% | Added |
| First Turn Management, LLC | 463,960 | $19.5M | 3.94% | +178,801+62.7% | Added |
| T. Rowe Price Investment Management, Inc. | 509,761 | $21.5M | 0.01% | −298,815−37.0% | Reduced |
| Two Sigma Advisers, LP | 554,400 | $23.3M | 0.05% | −166,400−23.1% | Reduced |
| Millennium Management LLC | 586,434 | $24.7M | 0.02% | −297,131−33.6% | Reduced |
| Perceptive Advisors LLC | 690,485 | $29.1M | 1.03% | +390,485+130.2% | Added |
| Boxer Capital Management, LLC | 700,000 | $29.5M | 8.86% | −1,200,000−63.2% | Reduced |
| Alliancebernstein L.P. | 739,288 | $31.1M | 0.01% | −57,669−7.2% | Reduced |
| Cormorant Asset Management, LP | 740,000 | $31.1M | 2.36% | 00.0% | Unchanged |
| Novo Holdings A/S | 789,129 | $33.2M | 2.53% | +39,129+5.2% | Added |
| Morgan Stanley | 803,588 | $33.8M | 0.00% | +228,388+39.7% | Added |
| Silverarc Capital Management, LLC | 811,021 | $34.1M | 7.13% | +130,176+19.1% | Added |
| Invesco Ltd. | 828,217 | $34.9M | 0.01% | +41,852+5.3% | Added |
| UBS Group AG | 862,748 | $36.3M | 0.01% | −244,690−22.1% | Reduced |
| Rock Springs Capital Management LP | 980,751 | $41.3M | 2.36% | +88,202+9.9% | Added |
| Pictet Asset Management Holding SA | 1,032,101 | $43.4M | 0.05% | +2740.0% | Added |
| Siren, L.L.C. | 1,043,467 | $43.9M | 2.48% | +259,055+33.0% | Added |
| Federated Hermes, Inc. | 1,044,625 | $44.0M | 0.09% | −548,750−34.4% | Reduced |
| Price T Rowe Associates Inc | 1,095,742 | $46.1M | 0.01% | −21,078−1.9% | Reduced |
| Driehaus Capital Management LLC | 1,254,149 | $52.8M | 0.51% | −26,188−2.0% | Reduced |
| Woodline Partners LP | 1,400,171 | $58.9M | 0.38% | +211,653+17.8% | Added |
| Westfield Capital Management Co LP | 1,501,220 | $63.2M | 0.31% | +508,063+51.2% | Added |
| Lynx1 Capital Management LP | 1,568,841 | $66.0M | 23.65% | −12,000−0.8% | Reduced |
| BlackRock, Inc. | 1,691,869 | $71.2M | 0.00% | +104,708+6.6% | Added |
| Polar Capital Holdings Plc | 1,706,862 | $71.8M | 0.44% | +6240.0% | Added |
| Holocene Advisors, LP | 1,873,625 | $78.9M | 0.23% | −6,393−0.3% | Reduced |
| Franklin Resources Inc | 1,991,193 | $83.8M | 0.02% | +6,655+0.3% | Added |
| Samlyn Capital, LLC | 2,379,428 | $100.2M | 1.65% | −288,750−10.8% | Reduced |
| Avoro Capital Advisors LLC | 3,000,000 | $126.3M | 1.97% | +875,000+41.2% | Added |
| Deerfield Management Company, L.P. (Series C) | 3,173,928 | $133.6M | 2.65% | +201,141+6.8% | Added |
| Paradigm Biocapital Advisors LP | 3,369,699 | $141.8M | 6.53% | +1,679,777+99.4% | Added |
| RTW Investments, LP | 4,169,393 | $175.5M | 2.68% | 00.0% | Unchanged |
| Commodore Capital LP | 4,472,840 | $188.3M | 13.87% | +598,658+15.5% | Added |
| Wellington Management Group LLP | 4,718,172 | $198.6M | 0.04% | +1,220,519+34.9% | Added |
| FMR LLC | 6,966,914 | $293.2M | 0.02% | +67,393+1.0% | Added |
| Logos Global Management LP | 0 | $0 | 0.00% | −750,000−100.0% | Sold out |
| VR Adviser, LLC | 0 | $0 | 0.00% | −592,411−100.0% | Sold out |
| Camber Capital Management LP | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Adage Capital Partners GP, L.L.C. | 0 | $0 | 0.00% | −250,000−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −191,191−100.0% | Sold out |
| Springhill Fund Asset Management (HK) Co Ltd | 0 | $0 | 0.00% | −83,800−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −54,412−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −52,000−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −39,684−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −33,399−100.0% | Sold out |
| Cambridge Investment Research Advisors, Inc. | 0 | $0 | 0.00% | −12,285−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −10,600−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −10,158−100.0% | Sold out |
| Jain Global LLC | 0 | $0 | 0.00% | −10,127−100.0% | Sold out |
| Engineers Gate Manager LP | 0 | $0 | 0.00% | −8,909−100.0% | Sold out |