Vault-13

MERUS N V MRUS

COM · Common Stock · CUSIP N5749R100

92 institutional holders -9 vs Q3 2022
36,441,34336.4m shares reported held*
$563.8mreported value*
15 new 30 added 30 reduced 24 sold out net sold ≈ $2.1m (-138.8k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Implied quarter-end price ≈ $15.47. Options: 4 managers hold calls ($626.1k notional), 2 hold puts ($51.1k).

Trends to Q4 2022

Institutional holders

Managers reporting a position, each quarter

050100150Q3 22: 101Q4 22: 9292Q3 22Q4 22
Numbers
QuarterHolders
Q3 2022101
Q4 202292

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$200k$400k$600k$800kQ3 22 calls: $136.0kQ3 22 puts: $318.0kQ3 22P/C 2.34Q4 22 calls: $626.1kQ4 22 puts: $51.1kQ4 22P/C 0.08
Numbers
QuarterCallsPutsP/C
Q3 2022$136.0k$318.0k2.34
Q4 2022$626.1k$51.1k0.08

Biggest buyers

WELLINGTON MANAGEMENT GROUP LLP Added +1,752,964+1.8m
Venrock Adviser, LLC New +1,226,214+1.2m
FRANKLIN RESOURCES INC Added +539,669+539.7k
Carmignac Gestion New +449,652+449.7k
FEDERATED HERMES, INC. Added +326,695+326.7k
Polar Capital Holdings Plc Added +250,000+250.0k
Lynx1 Capital Management LP Added +241,520+241.5k
SAMLYN CAPITAL, LLC Added +208,442+208.4k
Ikarian Capital, LLC New +156,000+156.0k
Artisan Partners Limited Partnership New +139,734+139.7k

Biggest sellers

Woodline Partners LP Sold out -1,051,955-1.1m
MPM BIOIMPACT LLC Sold out -918,310-918.3k
Paradigm Biocapital Advisors LP Sold out -564,214-564.2k
AXA S.A. Sold out -532,954-533.0k
BVF INC/IL Reduced -466,000-466.0k
LORD, ABBETT & CO. LLC Sold out -422,384-422.4k
HealthCor Management, L.P. Sold out -272,890-272.9k
Opaleye Management Inc. Sold out -253,200-253.2k
MARSHALL WACE, LLP Reduced -197,033-197.0k
MILLENNIUM MANAGEMENT LLC Reduced -188,598-188.6k

Biggest calls

CITADEL ADVISORS LLC New $399.1k25.8k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP New $211.9k13.7k shares
SIMPLEX TRADING, LLC Reduced $15.0k1.0k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Biggest puts

CITADEL ADVISORS LLC New $51.1k3.3k shares
CONCOURSE FINANCIAL GROUP SECURITIES, INC. Unchanged $00 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

No one currently above 5% in the filings since 19 Dec 2024.

Fell to 5% or below in the last year: Paradigm Biocapital Advisors LP (0.0%, 2026-02-17), GENMAB A/S (0.0%, 2025-12-30), RTW INVESTMENTS, LP (2.7%, 2025-11-14)

Holders, Q4 2022

#ManagerLocationShares Value% of their portfolioChangeShares change
1 FEDERATED HERMES, INC. 0.17% of their portfolio PITTSBURGH, PA 3,924,2953.9m $60.7m $60.7m 0.17% Added +326.7k +326,695
2 WELLINGTON MANAGEMENT GROUP LLP 0.01% of their portfolio Boston, MA 3,690,3523.7m $57.1m $57.1m 0.01% Added +1.8m +1,752,964
3 BVF INC/IL 1.94% of their portfolio San Francisco, CA 2,978,4203.0m $46.1m $46.1m 1.94% Reduced -466.0k -466,000
4 Commodore Capital LP 6.37% of their portfolio NEW YORK, NY 2,732,5672.7m $42.3m $42.3m 6.37% Added +116.8k +116,805
5 DEERFIELD MANAGEMENT COMPANY, L.P. 0.76% of their portfolio New York, NY 2,380,4382.4m $36.8m $36.8m 0.76% Reduced -141.1k -141,115
6 BRAIDWELL LP 1.04% of their portfolio STAMFORD, CT 1,998,0842.0m $30.9m $30.9m 1.04% First filing
7 Boxer Capital, LLC 1.55% of their portfolio San Diego, CA 1,900,0001.9m $29.4m $29.4m 1.55% Unchanged
8 Medicxi Ventures Management (Jersey) Ltd 10.40% of their portfolio ST. HELIER, Y9 1,600,0001.6m $24.8m $24.8m 10.40% Unchanged
9 FRANKLIN RESOURCES INC 0.01% of their portfolio San Mateo, CA 1,590,5601.6m $24.6m $24.6m 0.01% Added +539.7k +539,669
10 Aquilo Capital Management, LLC 9.86% of their portfolio SAN FRANCISCO, CA 1,432,1091.4m $22.2m $22.2m 9.86% Reduced -75.0k -75,000
11 Venrock Adviser, LLC 3.20% of their portfolio NEW YORK, NY 1,226,2141.2m $19.0m $19.0m 3.20% New
12 Driehaus Capital Management LLC 0.25% of their portfolio Chicago, IL 1,073,4871.1m $16.6m $16.6m 0.25% Reduced -27.7k -27,733
13 Lynx1 Capital Management LP 11.43% of their portfolio DORADO, PR 854,591854.6k $13.2m $13.2m 11.43% Added +241.5k +241,520
14 SAMLYN CAPITAL, LLC 0.25% of their portfolio New York, NY 826,087826.1k $12.8m $12.8m 0.25% Added +208.4k +208,442
15 Polar Capital Holdings Plc 0.09% of their portfolio London, X0 750,000750.0k $11.6m $11.6m 0.09% Added +250.0k +250,000
16 Frazier Life Sciences Management, L.P. 0.72% of their portfolio PALO ALTO, CA 746,479746.5k $11.5m $11.5m 0.72% Unchanged
17 BlackRock Inc. 0.00% of their portfolio New York, NY 633,161633.2k $9.8m $9.8m 0.00% Added +112.0k +112,031
18 FMR LLC 0.00% of their portfolio BOSTON, MA 474,809474.8k $7.3m $7.3m 0.00% Reduced -80.8k -80,777
19 Carmignac Gestion 0.13% of their portfolio PARIS, I0 449,652449.7k $7.0m $7.0m 0.13% New
20 Vivo Capital, LLC 0.78% of their portfolio Palo Alto, CA 438,590438.6k $6.8m $6.8m 0.78% Reduced -3.4k -3,410
21 MILLENNIUM MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 340,705340.7k $5.3m $5.3m 0.01% Reduced -188.6k -188,598
22 SPHERA FUNDS MANAGEMENT LTD. 1.54% of their portfolio TEL AVIV, L3 316,993317.0k $4.9m $4.9m 1.54% Added +3.7k +3,667
23 TCG Crossover Management, LLC 0.82% of their portfolio PALO ALTO, CA 300,000300.0k $4.6m $4.6m 0.82% Unchanged
24 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 281,135281.1k $4.3m $4.3m 0.00% Added +91.2k +91,228
25 SILVERARC CAPITAL MANAGEMENT, LLC 1.46% of their portfolio BOSTON, MA 274,704274.7k $4.2m $4.2m 1.46% Reduced -20.4k -20,432
26 DAFNA Capital Management LLC 1.18% of their portfolio LOS ANGELES, CA 269,893269.9k $4.2m $4.2m 1.18% Reduced -7.0k -7,000
27 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 218,852218.9k $3.4m $3.4m 0.00% Reduced -145.8k -145,763
28 PLATINUM INVESTMENT MANAGEMENT LTD 0.11% of their portfolio SYDNEY AUSTRALIA 2000, C3 191,355191.4k $3.0m $3.0m 0.11% Added +45.1k +45,091
29 Eversept Partners, LP 0.28% of their portfolio NEW YORK, NY 184,556184.6k $2.9m $2.9m 0.28% Reduced -92.1k -92,117
30 TWO SIGMA ADVISERS, LP 0.01% of their portfolio NEW YORK, NY 171,500171.5k $2.7m $2.7m 0.01% Added +55.6k +55,600
31 ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio NASHVILLE, TN 160,286160.3k $2.5m $2.5m 0.00% Added +101.5k +101,482
32 Ikarian Capital, LLC 1.00% of their portfolio DALLAS, TX 156,000156.0k $2.4m $2.4m 1.00% New
33 Artisan Partners Limited Partnership 0.00% of their portfolio Milwaukee, WI 139,734139.7k $2.2m $2.2m 0.00% New
34 ExodusPoint Capital Management, LP 0.03% of their portfolio NEW YORK, NY 139,353139.4k $2.2m $2.2m 0.03% Added +117.4k +117,423
35 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 121,726121.7k $1.9m $1.9m 0.00% Reduced -4.5k -4,540
36 Nan Fung Group Holdings Ltd 1.00% of their portfolio KAI TAK, K3 93,75093.8k $1.5m $1.5m 1.00% New
37 Tekla Capital Management LLC 0.05% of their portfolio Boston, MA 92,32592.3k $1.4m $1.4m 0.05% Reduced -76.9k -76,882
38 ALGERT GLOBAL LLC 0.08% of their portfolio SAN FRANCISCO, CA 90,59790.6k $1.4m $1.4m 0.08% Added +39.0k +38,980
39 Sio Capital Management, LLC 0.73% of their portfolio NEW YORK, NY 87,95388.0k $1.4m $1.4m 0.73% Unchanged
40 NORGES BANK 0.00% of their portfolio OSLO, Q8 75,00075.0k $1.2m $1.2m 0.00% Unchanged
41 VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio ATLANTA, GA 72,36072.4k $1.1m $1.1m 0.00% Unchanged
42 Swiss National Bank 0.00% of their portfolio ZURICH, V8 71,95472.0k $1.1m $1.1m 0.00% Added +4.8k +4,800
43 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 63,74763.7k $986.2k $986.2k 0.00% Added +27.0k +26,955
44 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 59,79559.8k $925.0k $925.0k 0.00% New
45 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 57,92657.9k $896.1k $896.1k 0.00% Reduced -7.8k -7,845
46 Vident Investment Advisory, LLC 0.03% of their portfolio Alpharetta, GA 55,00255.0k $850.9k $850.9k 0.03% Added +23.1k +23,144
47 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 52,52152.5k $812.5k $812.5k 0.00% Added +2.2k +2,177
48 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 46,60046.6k $721.0k $721.0k 0.00% Reduced -25.6k -25,600
49 Bellevue Group AG 0.01% of their portfolio ZURICH, V8 45,70045.7k $707.0k $707.0k 0.01% Added +20.3k +20,300
50 Schonfeld Strategic Advisors LLC 0.01% of their portfolio NEW YORK, NY 45,36045.4k $701.7k $701.7k 0.01% Reduced -85.0k -85,032
51 VICTORY CAPITAL MANAGEMENT INC 0.00% of their portfolio San Antonio, TX 42,21042.2k $653.0k $653.0k 0.00% Reduced -27.1k -27,070
52 ALPS ADVISORS INC 0.00% of their portfolio Denver, CO 31,38631.4k $485.5k $485.5k 0.00% Added +6.4k +6,364
53 MARSHALL WACE, LLP 0.00% of their portfolio LONDON, X0 31,10031.1k $481.1k $481.1k 0.00% Reduced -197.0k -197,033
54 CREDIT SUISSE AG/ 0.00% of their portfolio ZURICH, V8 30,94330.9k $478.7k $478.7k 0.00% Added +8.9k +8,926
55 BOOTHBAY FUND MANAGEMENT, LLC 0.01% of their portfolio NEW YORK, NY 27,31727.3k $422.6k $422.6k 0.01% New
56 STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio MADISON, WI 26,72026.7k $413.4k $413.4k 0.00% Reduced -1.5k -1,526
57 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 25,90125.9k $400.7k $400.7k 0.00% Added +1.5k +1,545
58 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 25,46525.5k $393.9k $393.9k 0.00% Added +14.5k +14,496
59 DekaBank Deutsche Girozentrale 0.00% of their portfolio FRANKFURT, 2M 25,00025.0k $384.0k $384.0k 0.00% Unchanged
60 SANDERS MORRIS HARRIS LLC 0.15% of their portfolio Houston, TX 24,87024.9k $384.7k $384.7k 0.15% Unchanged
61 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 24,77024.8k $383.0k $383.0k 0.00% Unchanged
62 TUDOR INVESTMENT CORP ET AL 0.01% of their portfolio STAMFORD, CT 23,21523.2k $359.0k $359.0k 0.01% Added +170 +170
63 UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio NEW YORK, NY 21,92821.9k $339.2k $339.2k 0.00% Unchanged
64 SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.01% of their portfolio BALA CYNWYD, PA 21,19221.2k $327.8k $327.8k 0.01% Reduced -8.4k -8,446
65 Mitsubishi UFJ Asset Management Co., Ltd. 0.00% of their portfolio TOKYO, M0 15,37215.4k $240.1k $240.1k 0.00% Reduced -159 -159
66 Qube Research & Technologies Ltd 0.00% of their portfolio LONDON, X0 13,12413.1k $203.0k $203.0k 0.00% Reduced -31.8k -31,847
67 Weiss Multi-Strategy Advisers LLC 0.00% of their portfolio NEW YORK, NY 10,40710.4k $161.0k $161.0k 0.00% Reduced -250 -250
68 VIRTUS ADVISERS, LLC 0.08% of their portfolio HARTFORD, CT 10,10610.1k $156.3k $156.3k 0.08% Added +4.9k +4,886
69 Legal & General Group Plc 0.00% of their portfolio London, X0 8,0658.1k $124.8k $124.8k 0.00% Added +945 +945
70 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 5,3255.3k $82.4k $82.4k 0.00% New
71 BIT Capital GmbH 0.02% of their portfolio BERLIN, 2M 4,9104.9k $76.0k $76.0k 0.02% Reduced -23.9k -23,872
72 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 3,5303.5k $54.6k $54.6k 0.00% Added +803 +803
73 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 2,8802.9k $44.6k $44.6k 0.00% New
74 Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% of their portfolio ZURICH, V8 2,5882.6k $40.0k $40.0k 0.00% Reduced -144 -144
75 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 1,7221.7k $27.0k $27.0k 0.00% Reduced -3.0k -2,975
76 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 1,0251.0k $15.9k $15.9k 0.00% Reduced -306 -306
77 NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 0.00% of their portfolio MILWAUKEE, WI 800800 $12.4k $12.4k 0.00% Unchanged
78 China Universal Asset Management Co., Ltd. 0.00% of their portfolio SHANGHAI, F4 471471 $7.3k $7.3k 0.00% Added +42 +42
79 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 300300 $4.6k $4.6k 0.00% Reduced -43.2k -43,214
80 Atle Fund Management AB 0.01% of their portfolio STOCKHOLM, V7 286286 $4.4k $4.4k 0.01% New
81 Daiwa Securities Group Inc. 0.00% of their portfolio CHIYODA-KU,TOKYO, M0 186186 $3.0k $3.0k 0.00% Added +61 +61
82 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 161161 $2.0k $2.0k 0.00% Reduced -3.1k -3,095
83 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 100100 $1.5k $1.5k 0.00% Unchanged
84 UBS Group AG 0.00% of their portfolio ZURICH, V8 100100 $1.5k $1.5k 0.00% Reduced -14.6k -14,590
85 NewEdge Advisors, LLC 0.00% of their portfolio NEW ORLEANS, LA 100100 $2 $2 0.00% New
86 TD Waterhouse Canada Inc. 0.00% of their portfolio TORONTO, A6 9696 $1.5k $1.5k 0.00% Unchanged
87 SIGNATUREFD, LLC 0.00% of their portfolio ATLANTA, GA 9393 $1.4k $1.4k 0.00% New
88 QUADRANT CAPITAL GROUP LLC 0.00% of their portfolio CINCINNATI, OH 9393 $1.4k $1.4k 0.00% New
89 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 8484 $1.0k $1.0k 0.00% New
90 Lindbrook Capital, LLC 0.00% of their portfolio CALABASAS, CA 6565 $1.0k $1.0k 0.00% New
91 Washington Trust Advisors, Inc. 0.00% of their portfolio WELLESLEY, MA 6060 $928 $928 0.00% Unchanged
92 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged