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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 2023

Institutional positions in Merus N.V. as of Mar 31, 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
104
+14 vs. Q4 2022
Shares held
36.5M
+81.4K (+0.2%) vs. Q4 2022
Total value
$672.0M
+$108.2M (+19.2%) vs. Q4 2022
New holders
19
36 more added
Sold out
5
25 more reduced

1 institution that held it in Q4 2022 haven't filed for Q1 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2022: 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.

Institutional holdersQ1 2023: 104 institutions
Q1 2021: 59 institutionsQ2 2021: 68 institutionsQ3 2021: 64 institutionsQ4 2021: 103 institutionsQ1 2022: 95 institutionsQ2 2022: 93 institutionsQ3 2022: 100 institutionsQ4 2022: 91 institutionsQ1 2023: 104 institutionsQ2 2023: 114 institutionsQ3 2023: 113 institutionsQ4 2023: 131 institutionsQ1 2024: 156 institutionsQ2 2024: 179 institutionsQ3 2024: 189 institutionsQ4 2024: 192 institutionsQ1 2025: 185 institutionsQ2 2025: 201 institutionsQ3 2025: 268 institutionsQ4 2025: 10 institutionsQ1 2026: 0 institutionsQ2 2026: 0 institutions
Value heldQ1 2023: $672.0M
Q1 2021: $558.3MQ2 2021: $564.3MQ3 2021: $487.8MQ4 2021: $1.05BQ1 2022: $878.1MQ2 2022: $793.4MQ3 2022: $687.4MQ4 2022: $563.8MQ1 2023: $672.0MQ2 2023: $1.09BQ3 2023: $1.12BQ4 2023: $1.41BQ1 2024: $2.31BQ2 2024: $3.94BQ3 2024: $3.45BQ4 2024: $2.96BQ1 2025: $2.98BQ2 2025: $3.93BQ3 2025: $6.70BQ4 2025: $5.73MQ1 2026: $0Q2 2026: $0
Institutions holding MRUS and their total value by quarter
QuarterHoldersValue
Q2 20260$0
Q1 20260$0
Q4 202510$5.73M
Q3 2025268$6.70B
Q2 2025201$3.93B
Q1 2025185$2.98B
Q4 2024192$2.96B
Q3 2024189$3.45B
Q2 2024179$3.94B
Q1 2024156$2.31B
Q4 2023131$1.41B
Q3 2023113$1.12B
Q2 2023114$1.09B
Q1 2023104$672.0M
Q4 202291$563.8M
Q3 2022100$687.4M
Q2 202293$793.4M
Q1 202295$878.1M
Q4 2021103$1.05B
Q3 202164$487.8M
Q2 202168$564.3M
Q1 202159$558.3M

Institutions, Q1 2023

Shares, value and share of portfolio for each institution holding Merus N.V.; share changes are against Q4 2022.

Institutions holding MRUS in Q1 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Parallel Advisors, LLC6$1100.00%+6New
Royal Bank of Canada80$1.00K0.00%−4−4.8%Reduced
Washington Trust Advisors, Inc.60$1.10K0.00%00.0%Unchanged
TD Waterhouse Canada Inc.96$1.80K0.00%00.0%Unchanged
The PNC Financial Services Group, Inc.100$1.84K0.00%00.0%Unchanged
GWM Advisors LLC100$1.84K0.00%00.0%Unchanged
Daiwa Securities Group Inc.186$3.00K0.00%00.0%Unchanged
JPMorgan Chase & Co161$3.00K0.00%00.0%Unchanged
Lindbrook Capital, LLC184$3.39K0.00%+119+183.1%Added
Wells Fargo & Company300$5.52K0.00%00.0%Unchanged
China Universal Asset Management Co., Ltd.628$11.6K0.00%+157+33.3%Added
BNP Paribas Arbitrage, SA735$13.5K0.00%−290−28.3%Reduced
Northwestern Mutual Wealth Management Co800$14.7K0.00%00.0%Unchanged
UBS Group AG856$15.8K0.00%+756+756.0%Added
Quadrant Capital Group LLC910$16.7K0.00%+817+878.5%Added
Signaturefd, LLC1,257$23.1K0.00%+1,164+1,251.6%Added
Zurcher Kantonalbank (Zurich Cantonalbank)1,836$33.8K0.00%−752−29.1%Reduced
Tower Research Capital LLC (TRC)1,968$36.0K0.00%+246+14.3%Added
Citigroup Inc3,470$63.8K0.00%−60−1.7%Reduced
Russell Investments Group, Ltd.5,710$105.1K0.00%+5,710New
Group One Trading, L.P.6,527$120.1K0.01%+6,527New
Virtus ETF Advisers LLC7,305$134.4K0.07%−2,801−27.7%Reduced
Legal & General Group Plc8,516$156.7K0.00%+451+5.6%Added
Verition Fund Management LLC10,400$191.4K0.00%+10,400New
New York State Common Retirement Fund10,786$198.5K0.00%+5,461+102.6%Added
Susquehanna International Group, LLP11,254$207.1K0.00%+11,254New
Janus Henderson Group PLC11,614$213.3K0.00%+11,614New
Cubist Systematic Strategies, LLC13,836$254.6K0.00%+13,836New
Weiss Multi-Strategy Advisers LLC14,742$271.0K0.01%+4,335+41.7%Added
Sio Capital Management, LLC15,564$286.4K0.14%−72,389−82.3%Reduced
Simplex Trading, LLC15,777$290.0K0.01%+15,777New
Qube Research & Technologies Ltd15,997$294.3K0.00%+2,873+21.9%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.16,514$303.9K0.00%+1,142+7.4%Added
Millennium Management LLC16,701$307.0K0.00%−324,004−95.1%Reduced
Tudor Investment Corp Et Al17,615$324.0K0.01%−5,600−24.1%Reduced
Susquehanna Fundamental Investments, LLC21,192$389.9K0.01%00.0%Unchanged
Kynam Capital Management, LP21,457$394.8K0.05%+21,457New
UBS Asset Management Americas Inc21,928$403.5K0.00%00.0%Unchanged
Trexquant Investment LP22,280$410.0K0.01%+22,280New
Jane Street Group, LLC23,990$441.4K0.00%+23,990New
DekaBank Deutsche Girozentrale25,000$446.0K0.00%00.0%Unchanged
Geode Capital Management, LLC24,770$455.8K0.00%00.0%Unchanged
Bank of America Corp25,645$471.9K0.00%+180+0.7%Added
California State Teachers Retirement System26,440$486.5K0.00%+539+2.1%Added
State of Wisconsin Investment Board27,810$511.7K0.00%+1,090+4.1%Added
Alps Advisors Inc30,513$561.4K0.00%−873−2.8%Reduced
Marshall Wace, LLP31,100$572.2K0.00%00.0%Unchanged
Credit Suisse AG35,658$656.1K0.00%+4,715+15.2%Added
BIT Capital GmbH35,889$660.4K0.10%+30,979+630.9%Added
Boothbay Fund Management, LLC38,084$700.7K0.02%+10,767+39.4%Added
Bellevue Group AG45,700$840.9K0.01%00.0%Unchanged
HighVista Strategies LLC45,957$845.6K0.69%+45,957New
Northern Trust Corp51,682$950.9K0.00%−839−1.6%Reduced
Vident Investment Advisory, LLC53,056$976.2K0.03%−1,946−3.5%Reduced
Two Sigma Investments, LP53,369$982.0K0.00%−6,426−10.7%Reduced
Goldman Sachs Group Inc55,307$1.02M0.00%−8,440−13.2%Reduced
Norges Bank60,300$1.11M0.00%−14,700−19.6%Reduced
Swiss National Bank64,954$1.20M0.00%−7,000−9.7%Reduced
Polar Asset Management Partners Inc.66,400$1.22M0.02%+66,400New
Tekla Capital Management LLC69,025$1.27M0.05%−23,300−25.2%Reduced
Schonfeld Strategic Advisors LLC69,159$1.27M0.01%+23,799+52.5%Added
Woodline Partners LP76,411$1.41M0.02%+76,411New
Caas Capital Management LP100,887$1.86M0.60%+100,887New
Algert Global LLC111,858$2.06M0.10%+21,261+23.5%Added
UBS Oconnor LLC115,080$2.12M0.05%+115,080New
Deutsche Bank AG115,197$2.12M0.00%+112,317+3,899.9%Added
Vanguard Group Inc121,726$2.24M0.00%00.0%Unchanged
Morgan Stanley121,744$2.24M0.00%−97,108−44.4%Reduced
Eversept Partners, LP129,056$2.37M0.21%−55,500−30.1%Reduced
Artisan Partners Limited Partnership139,734$2.57M0.00%00.0%Unchanged
Citadel Advisors LLC145,459$2.68M0.00%+87,533+151.1%Added
Nan Fung Group Holdings Ltd151,000$2.78M1.89%+57,250+61.1%Added
Two Sigma Advisers, LP163,300$3.00M0.01%−8,200−4.8%Reduced
Point72 Asset Management, L.P.194,460$3.58M0.01%+194,460New
Ikarian Capital, LLC208,650$3.84M1.59%+52,650+33.8%Added
Alliancebernstein L.P.214,948$3.96M0.00%+54,662+34.1%Added
Platinum Investment Management Ltd239,052$4.40M0.15%+47,697+24.9%Added
Ally Bridge Group (NY) LLC275,970$5.08M6.66%+275,970New
DAFNA Capital Management LLC283,998$5.23M1.57%+14,105+5.2%Added
State Street Corp289,061$5.32M0.00%+7,926+2.8%Added
TCG Crossover Management, LLC300,000$5.52M1.08%00.0%Unchanged
Sphera Funds Management Ltd.336,993$6.20M1.34%+20,000+6.3%Added
Vivo Capital, LLC353,600$6.51M0.49%−84,990−19.4%Reduced
Fairmount Funds Management LLC374,435$6.89M1.18%+374,435New
Carmignac Gestion474,652$8.72M0.15%+25,000+5.6%Added
FMR LLC572,956$10.5M0.00%+98,147+20.7%Added
BlackRock Inc.601,726$11.1M0.00%−31,435−5.0%Reduced
Silverarc Capital Management, LLC668,784$12.3M5.53%+394,080+143.5%Added
Frazier Life Sciences Management, L.P.746,479$13.7M0.99%00.0%Unchanged
Polar Capital Holdings Plc750,000$13.8M0.10%00.0%Unchanged
Lynx1 Capital Management LP1,067,723$19.6M16.38%+213,132+24.9%Added
Driehaus Capital Management LLC1,104,535$20.3M0.29%+31,048+2.9%Added
Aquilo Capital Management, LLC1,225,109$22.5M13.21%−207,000−14.5%Reduced
VR Adviser, LLC1,226,214$22.6M4.41%00.0%Unchanged
Braidwell LP1,473,084$27.1M0.89%−525,000−26.3%Reduced
Franklin Resources Inc1,591,065$29.3M0.01%+5050.0%Added
Medicxi Ventures Management (Jersey) Ltd1,600,000$29.4M12.61%00.0%Unchanged
Samlyn Capital, LLC1,613,427$29.7M0.55%+787,340+95.3%Added
Boxer Capital, LLC1,900,000$35.0M1.72%00.0%Unchanged
Deerfield Management Company, L.P. (Series C)2,380,438$43.8M0.98%00.0%Unchanged