Merus N.V. - Common Shares, Euro 0.09 nominal value per share (MRUS) Institutional Ownership

13F Institutional Holders and Ownership History from Q2 2016 to Q4 2025

Type / Class
Equity / Common Shares, Euro 0.09 nominal value per share
Symbol
MRUS
Shares outstanding
75,893,250
Price per share
$90.00
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
69,044,665
Total reported value
$6,500,218,122
% of total 13F portfolios
0.03%
Share change
-5,742,843
Value change
-$237,229,414
Number of holders
261
Price from insider filings
$90.00
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Merus N.V. - Common Shares, Euro 0.09 nominal value per share (MRUS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Paradigm Biocapital Advisors LP 6.2% +22% $440,035,446 +$105,420,791 4,673,770 +32% Paradigm BioCapital Advisors LP 30 Sep 2025
Commodore Capital LP 4.7% -13% $237,162,000 -$15,138,000 3,525,000 -6% Commodore Capital LP 30 Jun 2025
FMR LLC 3.7% $262,013,365 2,782,935 FMR LLC 30 Sep 2025
RTW INVESTMENTS, LP 2.7% $190,679,830 2,025,277 RTW Investments, LP 30 Sep 2025
WELLINGTON MANAGEMENT GROUP LLP 0.6% -88% $43,223,041 -$307,647,929 459,087 -88% Wellington Management Group LLP 30 Sep 2025

As of 30 Sep 2025, 261 institutional investors reported holding 69,044,665 shares of Merus N.V. - Common Shares, Euro 0.09 nominal value per share (MRUS). This represents 91% of the company’s total 75,893,250 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of Merus N.V. - Common Shares, Euro 0.09 nominal value per share (MRUS) together control 59% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
Paradigm Biocapital Advisors LP 5.8% 4,373,770 +2.1% 12% $411,790,446
Avoro Capital Advisors LLC 4.7% 3,542,500 +12% 4.3% $333,526,375
Commodore Capital LP 4.6% 3,525,000 0% 16% $331,878,750
DEERFIELD MANAGEMENT COMPANY, L.P. 4% 3,046,916 -10% 4.4% $286,867,141
HBK INVESTMENTS L P 3.8% 2,850,000 4% $268,327,500
FMR LLC 3.7% 2,810,935 -62% 0.01% $264,649,564
BlackRock, Inc. 2.9% 2,172,015 +107% 0% $204,495,213
WESTFIELD CAPITAL MANAGEMENT CO LP 2.8% 2,132,489 +4.4% 0.84% $200,773,839
RTW INVESTMENTS, LP 2.7% 2,025,277 -49% 2.3% $190,679,830
Woodline Partners LP 2.2% 1,674,167 +8.5% 0.74% $157,622,823
GLAZER CAPITAL, LLC 2.1% 1,619,372 5.1% $152,464,000
Lynx1 Capital Management LP 2% 1,534,141 -2.2% 29% $144,439,375
PERCEPTIVE ADVISORS LLC 1.8% 1,353,093 +91% 3.7% $127,393,706
FEDERATED HERMES, INC. 1.6% 1,249,162 -18% 0.21% $117,608,602
ALLIANCEBERNSTEIN L.P. 1.6% 1,196,325 +8.5% 0.04% $112,633,999
GOLDMAN SACHS GROUP INC 1.6% 1,195,408 +1021% 0.02% $112,547,664
PRICE T ROWE ASSOCIATES INC /MD/ 1.4% 1,087,143 -52% 0.01% $102,355,000
KRYGER CAPITAL Ltd 1.4% 1,053,500 11% $99,187,025
Magnetar Financial LLC 1.4% 1,045,209 0.6% $98,406,427
Pentwater Capital Management LP 1.3% 970,000 0.82% $91,325,500
AMERIPRISE FINANCIAL INC 1.2% 898,822 -21% 0.02% $84,624,258
TIG Advisors, LLC 1.1% 868,145 5% $81,735,852
ALPINE ASSOCIATES MANAGEMENT INC. 1.1% 835,600 4.8% $78,671,739
JPMORGAN CHASE & CO 1% 756,013 +9.4% 0% $71,178,624
NOVO HOLDINGS A/S 0.99% 750,000 0% 4.6% $70,612,500

Institutional Holders of Merus N.V. - Common Shares, Euro 0.09 nominal value per share (MRUS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 2,250 $202,500 -$26,554,360 $90.00 1
2025 Q3 69,044,665 $6,500,218,122 -$237,229,414 $94.15 261
2025 Q2 74,805,584 $3,934,869,962 +$216,360,368 $52.60 200
2025 Q1 70,836,600 $2,982,589,652 +$29,907,677 $42.09 185
2024 Q4 70,372,276 $2,959,148,838 -$77,771,243 $42.05 190
2024 Q3 69,023,165 $3,453,000,143 +$63,851,920 $49.96 187
2024 Q2 66,501,887 $3,934,913,980 +$944,458,107 $59.17 177
2024 Q1 51,233,616 $2,306,963,972 +$5,678,316 $45.03 157
2023 Q4 149,132 $4,101,131 +$556,350 $27.50 3
2023 Q3 47,396,076 $1,117,645,456 +$142,423,971 $23.58 110
2023 Q2 41,158,550 $1,083,715,756 +$131,353,040 $26.33 109
2023 Q1 36,486,463 $671,321,063 +$1,889,858 $18.40 102
2022 Q4 36,436,326 $563,677,280 -$16,859,986 $15.47 89
2022 Q3 33,378,456 $668,560,701 -$19,890,593 $20.03 95
2022 Q2 34,987,252 $792,103,473 +$41,628,166 $22.64 91
2022 Q1 33,204,052 $877,941,252 +$399,199 $26.44 92
2021 Q4 32,642,225 $1,037,948,623 +$315,224,087 $31.80 101
2021 Q3 22,159,049 $487,625,074 -$93,777,235 $22.00 62
2021 Q2 26,777,962 $564,200,817 +$1,574,580 $21.07 66
2021 Q1 26,705,615 $557,911,760 +$113,468,022 $20.89 57
2020 Q4 21,321,098 $373,758,075 +$61,494,701 $17.53 41
2020 Q3 18,195,428 $218,378,600 -$6,777,476 $12.00 40
2020 Q2 17,889,576 $287,844,000 +$8,153,578 $16.09 41
2020 Q1 18,005,073 $217,858,000 +$1,723,166 $12.10 29
2019 Q4 17,842,709 $251,227,000 +$61,139,102 $14.08 38
2019 Q3 11,877,122 $211,649,000 +$2,519,400 $17.82 26
2019 Q2 11,830,344 $173,308,000 -$426,522 $14.65 26
2019 Q1 11,859,344 $175,160,000 -$2,838,139 $14.77 24
2018 Q4 12,071,735 $169,002,000 -$3,568,069 $14.00 25
2018 Q3 12,054,339 $237,947,000 -$3,669,140 $19.74 29
2018 Q2 12,310,935 $280,168,000 +$31,199,719 $22.76 25
2018 Q1 9,796,183 $181,524,000 +$38,987,554 $18.53 20
2017 Q4 5,703,167 $110,530,000 -$2,557,402 $19.40 16
2017 Q3 5,831,528 $115,872,000 -$9,162,883 $19.87 16
2017 Q2 6,307,149 $99,970,000 -$1,088,163 $15.85 16
2017 Q1 6,339,526 $154,589,000 +$35,982,537 $24.38 22
2016 Q4 4,863,545 $102,671,000 +$2,727,025 $21.11 11
2016 Q3 4,657,913 $78,018,000 +$231,708 $16.75 11
2016 Q2 4,811,781 $38,568,000 +$38,567,915 $7.99 16