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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, Q4 2025

Institutional positions in Merus N.V. as of Dec 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

MRUS is no longer listed, and 13F filings after Q3 2025 list far fewer holders. See Q3 2025

Institutional holders
10
−254 vs. Q3 2025
Shares held
89.4K
−71.0M (−99.9%) vs. Q3 2025
Total value
$5.73M
−$6.69B (−99.9%) vs. Q3 2025
New holders
3
3 more added
Sold out
257
0 more reduced

4 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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.

Institutional holdersQ4 2025: 10 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 heldQ4 2025: $5.73M
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, Q4 2025

Shares, value and share of portfolio for each institution holding Merus N.V.; share changes are against Q3 2025.

Institutions holding MRUS in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
DekaBank Deutsche Girozentrale56,000$2.72M0.01%00.0%Unchanged
XTX Topco Ltd26,768$2.41M0.06%+14,920+125.9%Added
Skopos Labs, Inc.2,452$220.7K0.01%+2,452New
NTV Asset Management LLC2,250$202.5K0.02%00.0%Unchanged
Farther Finance Advisors, LLC1,010$90.9K0.00%+485+92.4%Added
Simplex Trading, LLC837$75.3K0.00%+837New
EverSource Wealth Advisors, LLC53$4.77K0.00%+21+65.6%Added
Parallel Advisors, LLC9$8100.00%00.0%Unchanged
IFP Advisors, Inc3$2700.00%00.0%Unchanged
Clear Street Markets LLC1$00.00%+1New
Paradigm Biocapital Advisors LP0$00.00%−4,373,770−100.0%Sold out
Avoro Capital Advisors LLC0$00.00%−3,542,500−100.0%Sold out
Commodore Capital LP0$00.00%−3,525,000−100.0%Sold out
Deerfield Management Company, L.P. (Series C)0$00.00%−3,046,916−100.0%Sold out
HBK Investments L P0$00.00%−2,850,000−100.0%Sold out
FMR LLC0$00.00%−2,810,935−100.0%Sold out
BlackRock, Inc.0$00.00%−2,172,015−100.0%Sold out
Westfield Capital Management Co LP0$00.00%−2,132,489−100.0%Sold out
RTW Investments, LP0$00.00%−2,025,277−100.0%Sold out
Woodline Partners LP0$00.00%−1,674,167−100.0%Sold out
Glazer Capital, LLC0$00.00%−1,619,372−100.0%Sold out
Lynx1 Capital Management LP0$00.00%−1,534,141−100.0%Sold out
Perceptive Advisors LLC0$00.00%−1,353,093−100.0%Sold out
Federated Hermes, Inc.0$00.00%−1,249,162−100.0%Sold out
Davidson Kempner Capital Management LP0$00.00%−1,233,909−100.0%Sold out
Alliancebernstein L.P.0$00.00%−1,196,325−100.0%Sold out
Goldman Sachs Group Inc0$00.00%−1,195,408−100.0%Sold out
Price T Rowe Associates Inc0$00.00%−1,087,143−100.0%Sold out
Omni Event Management Ltd0$00.00%−1,053,500−100.0%Sold out
Magnetar Financial LLC0$00.00%−1,045,209−100.0%Sold out
Pentwater Capital Management LP0$00.00%−970,000−100.0%Sold out
Ameriprise Financial Inc0$00.00%−898,822−100.0%Sold out
TIG Advisors, LLC0$00.00%−868,145−100.0%Sold out
Alpine Associates Management Inc.0$00.00%−835,600−100.0%Sold out
JPMorgan Chase & Co0$00.00%−756,013−100.0%Sold out
Novo Holdings A/S0$00.00%−750,000−100.0%Sold out
Hudson Bay Capital Management LP0$00.00%−740,394−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−731,150−100.0%Sold out
Millennium Management LLC0$00.00%−699,029−100.0%Sold out
Janus Henderson Group PLC0$00.00%−662,140−100.0%Sold out
UBS Oconnor LLC0$00.00%−654,126−100.0%Sold out
Balyasny Asset Management LLC0$00.00%−644,283−100.0%Sold out
Citadel Advisors LLC0$00.00%−614,538−100.0%Sold out
Adage Capital Partners GP, L.L.C.0$00.00%−600,000−100.0%Sold out
Tang Capital Management LLC0$00.00%−600,000−100.0%Sold out
Rock Springs Capital Management LP0$00.00%−597,051−100.0%Sold out
UBS Group AG0$00.00%−581,071−100.0%Sold out
Baker Bros. Advisors LP0$00.00%−574,377−100.0%Sold out
Invesco Ltd.0$00.00%−548,521−100.0%Sold out
Franklin Resources Inc0$00.00%−501,615−100.0%Sold out
Verition Fund Management LLC0$00.00%−498,900−100.0%Sold out
Wellington Management Group LLP0$00.00%−459,087−100.0%Sold out
Gilead Sciences, Inc.0$00.00%−452,527−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−422,277−100.0%Sold out
Soros Fund Management LLCSuperinvestorSoros Fund Management0$00.00%−405,000−100.0%Sold out
LMR Partners LLP0$00.00%−390,465−100.0%Sold out
First Turn Management, LLC0$00.00%−372,022−100.0%Sold out
Man Group plc0$00.00%−361,703−100.0%Sold out
FIL Ltd0$00.00%−338,000−100.0%Sold out
Absolute Gestao de Investimentos Ltda.0$00.00%−330,588−100.0%Sold out
Pictet Asset Management Holding SA0$00.00%−330,228−100.0%Sold out
Bank of America Corp0$00.00%−311,566−100.0%Sold out
Twin Securities, Inc.0$00.00%−310,263−100.0%Sold out
Octagon Capital Advisors LP0$00.00%−308,000−100.0%Sold out
Artia Global Partners LP0$00.00%−296,750−100.0%Sold out
Affinity Asset Advisors, LLC0$00.00%−285,769−100.0%Sold out
Vanguard Group Inc0$00.00%−282,882−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−254,751−100.0%Sold out
State Street Corp0$00.00%−247,302−100.0%Sold out
Vivaldi Asset Management, LLC0$00.00%−245,354−100.0%Sold out
Sand Grove Capital Management LLP0$00.00%−239,378−100.0%Sold out
Readystate Asset Management LP0$00.00%−238,696−100.0%Sold out
First Light Asset Management, LLC0$00.00%−224,080−100.0%Sold out
DAFNA Capital Management LLC0$00.00%−220,451−100.0%Sold out
Caligan Partners LP0$00.00%−216,954−100.0%Sold out
Voya Investment Management LLC0$00.00%−210,304−100.0%Sold out
CNH Partners LLC0$00.00%−204,994−100.0%Sold out
Versor Investments LP0$00.00%−198,789−100.0%Sold out
Healthcare of Ontario Pension Plan Trust Fund0$00.00%−192,500−100.0%Sold out
Allianz Asset Management GmbH0$00.00%−192,100−100.0%Sold out
Decheng Capital LLC0$00.00%−186,546−100.0%Sold out
Saturn V Capital Management LLC0$00.00%−184,135−100.0%Sold out
Driehaus Capital Management LLC0$00.00%−177,508−100.0%Sold out
Voloridge Investment Management, LLC0$00.00%−176,009−100.0%Sold out
Carmignac Gestion0$00.00%−167,532−100.0%Sold out
Holocene Advisors, LP0$00.00%−166,741−100.0%Sold out
Sofinnova Investments, Inc.0$00.00%−166,729−100.0%Sold out
TimesSquare Capital Management, LLC0$00.00%−166,002−100.0%Sold out
Standard Life Aberdeen plc0$00.00%−155,151−100.0%Sold out
Capstone Investment Advisors, LLC0$00.00%−152,000−100.0%Sold out
Nan Fung Trinity (HK) Ltd0$00.00%−150,338−100.0%Sold out
Taconic Capital Advisors LP0$00.00%−145,000−100.0%Sold out
Weiss Asset Management LP0$00.00%−144,902−100.0%Sold out
Barclays PLC0$00.00%−144,035−100.0%Sold out
HighVista Strategies LLC0$00.00%−133,321−100.0%Sold out
Royal Bank of Canada0$00.00%−132,212−100.0%Sold out
Victory Capital Management Inc0$00.00%−131,432−100.0%Sold out
PFM Health Sciences, LP0$00.00%−130,742−100.0%Sold out
Harvest Management LLC0$00.00%−130,000−100.0%Sold out
BNP Paribas Arbitrage, SA0$00.00%−121,783−100.0%Sold out