Comparable stake leader
Commodore Capital LP
SEC ownership of Merus N.V.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001651311.
Disclosed value leader
FMR LLC
Comparable rows
4/21
Latest evidence
12 Dec 2025
- Parsed ownership sources
-
13D/G and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Commodore Capital LP
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
4 of 21
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Commodore Capital LP
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
12 Dec 2025
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001651311
- Issuer location
- 3584 Cm Utrecht, DE
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Merus N.V. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Commodore Capital LP
Disclosed value leader
FMR LLC
Comparable rows
4/21
Latest evidence
12 Dec 2025
13D/G
3/4/5
Lead comparable stake: 4.7%
17 rows are not safely comparable across share classes.
13D/G row: Commodore Capital LP
Showing 1-8 of 21 holder rows.
Quick read
Commodore Capital LP leads the comparable SEC ownership view at 4.7%.
4 of 21 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Commodore Capital LP's linked filing trail.
Comparable ownership
Top 4
Commodore Capital LP
4.7%
FMR LLC
3.7%
RTW INVESTMENTS, LP
2.7%
WELLINGTON MANAGEMENT GROUP LLP
0.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 21 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Commodore Capital LP |
13D/G
|
4.7%
Reported 13D/G
· 30 Jun 2025
|
$192,112,500
3,525,000 shares
|
-$12,262,500 | 30 Jun 2025 |
| FMR LLC |
13D/G
|
3.7%
Reported 13D/G
· 30 Sep 2025
|
$262,013,365
2,782,935 shares
|
$0 | 30 Sep 2025 |
| RTW INVESTMENTS, LP |
13D/G
|
2.7%
Reported 13D/G
· 30 Sep 2025
|
$190,679,830
2,025,277 shares
|
$0 | 30 Sep 2025 |
| WELLINGTON MANAGEMENT GROUP LLP |
13D/G
|
0.6%
Reported 13D/G
· 30 Sep 2025
|
$43,223,041
459,087 shares
|
-$307,647,929 | 30 Sep 2025 |
| BVF PARTNERS L P/IL |
3/4/5
10%+ Owner
|
—
denominator unverified
|
$6,467,225
232,747 shares
|
— | 07 Oct 2021 |
| Sven Ante Lundberg |
3/4/5
President, CEO & PEO, Director
|
— |
$4,226,622
|
— | 12 Dec 2025 |
| Hui Liu |
3/4/5
EVP, CBO & Head of Merus US
|
—
mixed-class rows
|
$1,450,696
112,300 shares
mixed-class rows
|
— | 07 May 2024 |
| Andrew Joe |
3/4/5
SVP, CMO
|
—
denominator unverified
|
$1,450,696
107,300 shares
|
— | 07 May 2024 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$7,125,219,857.
Buys
$234,857,952
Insiders: 1
Sells
$7,360,077,809
Insiders: 2
Net
-$7,125,219,857
Shares: -73,455,983
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 2,421,216
Shares: 75,877,199
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 2,421,216 | 75,877,199 | $234,857,952 | $7,360,077,809 | -$7,125,219,857 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-19 of 19 reporting-owner rows connected to Merus N.V.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
19
Largest Forms 3/4/5 holder
BVF PARTNERS L P/IL
Net 12M change
-$7,125,219,857
Latest report
26 Dec 2025
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| BVF PARTNERS L P/IL | 10%+ Owner | $6,467,225 | Filing P/S | 07 Oct 2021 | ||
| Sven Ante Lundberg | President, CEO & PEO, Director | $4,226,622 | Mixed | 12 Dec 2025 | ||
| Hui Liu | EVP, CBO & Head of Merus US | $1,450,696 | Mixed | 07 May 2024 | ||
| Gregory D. Perry | Chief Financial Officer & PFO | $1,450,696 | Mixed | 12 Dec 2025 | ||
| Andrew Joe | Svp, Cmo | $1,450,696 | Mixed | 07 May 2024 | ||
| Peter B. Silverman | Coo & Gc | $1,450,696 | Mixed | 12 Dec 2025 | ||
| Cecile A. W. Geuijen | SVP & Chief Scientific Officer | $743,600 | Mixed | 31 Jan 2022 | ||
| John de Kruif | SVP & Chief Technology Officer | $743,600 | Mixed | 31 Jan 2022 | ||
| Lex Bakker | SVP, Chief Development Officer | $743,600 | Mixed | 31 Jan 2022 | ||
| Harry Shuman | VP Controller, PAO | $372,476 | -$959,506 | -72% | Mixed | 12 Dec 2025 |
| Jason Haddock | Director | $239,142 | Mixed | 12 Dec 2025 | ||
| Victor Sandor | Director | $119,571 | Mixed | 12 Dec 2025 | ||
| Paolo Pucci | Director | $119,571 | Mixed | 12 Dec 2025 | ||
| Iwicki Mark T. | Director | $119,571 | Mixed | 12 Dec 2025 | ||
| Anand Mehra | Director | $119,571 | Mixed | 12 Dec 2025 | ||
| Maxine Gowen | Director | $119,571 | Mixed | 12 Dec 2025 | ||
| Len Kanavy | Director | $119,571 | Mixed | 12 Dec 2025 | ||
| GENMAB A/S | 10%+ Owner | $0 | -$7,124,260,351 | -100% | Mixed | 26 Dec 2025 |
| Fabian Zohren | Chief Medical Officer | Mixed | 12 Dec 2025 |
Recent insider transactions for Merus N.V.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Genmab A/S | MRUS | Common Shares, nominal value EUR 0.09 per share | Purchase | -100% | $7,359,118,303 | $97.00 | -75,867,199 | 0 | 29 Dec 2025 | See footnote |
| Genmab A/S | MRUS | Common Shares, nominal value EUR 0.09 per share | Purchase | 1.45% | $102,122,182 | $97.00 | 1,052,806 | 73,884,293 | 29 Dec 2025 | See footnote |
| Genmab A/S | MRUS | Common Shares, nominal value EUR 0.09 per share | Purchase | $288,866 | $97.00 | 2,978 | 72,831,487 | 26 Dec 2025 | See footnote | |
| Genmab A/S | MRUS | Common Shares, nominal value EUR 0.09 per share | Purchase | 0.2% | $13,833,170 | $97.00 | 142,610 | 72,828,509 | 26 Dec 2025 | See footnotes |
| Genmab A/S | MRUS | Common Shares, nominal value EUR 0.09 per share | Purchase | 0.13% | $9,319,954 | $97.00 | 96,082 | 72,685,899 | 24 Dec 2025 | See footnotes |
| Genmab A/S | MRUS | Common Shares, nominal value EUR 0.09 per share | Purchase | 0.78% | $54,421,074 | $97.00 | 561,042 | 72,589,817 | 23 Dec 2025 | See footnotes |
| Genmab A/S | MRUS | Common Shares, nominal value EUR 0.09 per share | Purchase | 0.02% | $1,523,870 | $97.00 | 15,710 | 72,028,775 | 22 Dec 2025 | See footnotes |
| Genmab A/S | MRUS | Common Shares, nominal value EUR 0.09 per share | Purchase | 0.09% | $6,427,608 | $97.00 | 66,264 | 72,013,065 | 19 Dec 2025 | See footnotes |
| Genmab A/S | MRUS | Common Shares, nominal value EUR 0.09 per share | Purchase | 0.3% | $20,581,169 | $97.00 | 212,177 | 71,946,801 | 18 Dec 2025 | See footnotes |
| Genmab A/S | MRUS | Common Shares, nominal value EUR 0.09 per share | Purchase | 0.21% | $14,627,115 | $97.00 | 150,795 | 71,734,624 | 17 Dec 2025 | See footnotes |
| Genmab A/S | MRUS | Common Shares, nominal value EUR 0.09 per share | Purchase | 0.17% | $11,712,944 | $97.00 | 120,752 | 71,583,829 | 16 Dec 2025 | See footnotes |
| Gregory D. Perry | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -662,126 | 0 | 12 Dec 2025 | Direct | ||
| Anand Mehra | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -103,939 | 0 | 12 Dec 2025 | Direct | ||
| Len Kanavy | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -98,124 | 0 | 12 Dec 2025 | Direct | ||
| Jason Haddock | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -30,881 | 0 | 12 Dec 2025 | Direct | ||
| Peter B. Silverman | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -505,914 | 0 | 12 Dec 2025 | Direct | ||
| Fabian Zohren | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -233,943 | 0 | 12 Dec 2025 | Direct | ||
| Sven Ante Lundberg | MRUS | Common Shares | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -9,192 | 0 | 12 Dec 2025 | Emily Lundberg 2018 Irrevocable Trust | ||
| Sven Ante Lundberg | MRUS | Common Shares | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -9,192 | 0 | 12 Dec 2025 | Kristian Ante Lundberg 2018 Irrevocable Trust | ||
| Sven Ante Lundberg | MRUS | Common Shares | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -9,191 | 0 | 12 Dec 2025 | Madeleine Lundberg 2018 Irrevocable Trust | ||
| Sven Ante Lundberg | MRUS | Common Shares | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -9,191 | 0 | 12 Dec 2025 | Katrina Lundberg 2018 Irrevocable Trust | ||
| Sven Ante Lundberg | MRUS | Common Shares | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -16,372 | 0 | 12 Dec 2025 | Ante S Lundberg Qualified Annuity Int Trust X | ||
| Sven Ante Lundberg | MRUS | Common Shares | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -30,297 | 0 | 12 Dec 2025 | Ante S Lundberg Qualified Annuity Interest Trust XI | ||
| Sven Ante Lundberg | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -1,999,248 | 0 | 12 Dec 2025 | Direct | ||
| Paolo Pucci | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -76,437 | 0 | 12 Dec 2025 | Direct | ||
| Harry Shuman | MRUS | Common Shares | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -11,002 | 0 | 12 Dec 2025 | Direct | ||
| Harry Shuman | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -112,370 | 0 | 12 Dec 2025 | Direct | ||
| Victor Sandor | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -84,806 | 0 | 12 Dec 2025 | Direct | ||
| Iwicki Mark T. | MRUS | Common Shares | Disposition pursuant to a tender of shares in a change of control transaction | -100% | -73,576 | 0 | 12 Dec 2025 | Direct | ||
| Iwicki Mark T. | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -86,939 | 0 | 12 Dec 2025 | Direct | ||
| Maxine Gowen | MRUS | Share Option (right to buy) | Disposed to Issuer | -100% | -73,252 | 0 | 12 Dec 2025 | Direct | ||
| Harry Shuman | MRUS | Common Shares | Sale | -13.4% | $163,370 | $96.10 | -1,700 | 11,002 | 26 Nov 2025 | Direct |
| Harry Shuman | MRUS | Common Shares | Options Exercise | 15.4% | 1,700 | 12,702 | 26 Nov 2025 | Direct | ||
| Harry Shuman | MRUS | Share Option (right to buy) | Options Exercise | -18.3% | -1,700 | 7,600 | 26 Nov 2025 | Direct | ||
| Sven Ante Lundberg | MRUS | Common Shares | Gift | 38.2% | 2,539 | 9,192 | 25 Nov 2025 | Emily Lundberg 2018 Irrevocable Trust | ||
| Sven Ante Lundberg | MRUS | Common Shares | Gift | 38.2% | 2,539 | 9,192 | 25 Nov 2025 | Kristian Ante Lundberg 2018 Irrevocable Trust | ||
| Sven Ante Lundberg | MRUS | Common Shares | Gift | 38.2% | 2,539 | 9,191 | 25 Nov 2025 | Madeleine Lundberg 2018 Irrevocable Trust | ||
| Sven Ante Lundberg | MRUS | Common Shares | Gift | 38.2% | 2,538 | 9,191 | 25 Nov 2025 | Katrina Lundberg 2018 Irrevocable Trust | ||
| Sven Ante Lundberg | MRUS | Common Shares | Gift | -59.7% | -24,229 | 16,372 | 25 Nov 2025 | Ante S Lundberg Qualified Annuity Int Trust X | ||
| Sven Ante Lundberg | MRUS | Common Shares | Gift | -100% | -22,449 | 0 | 25 Nov 2025 | Ante Sven Lundberg Qualified Annuity Interest Trust IX | ||
| Sven Ante Lundberg | MRUS | Common Shares | Gift | -100% | -52,369 | 0 | 25 Nov 2025 | Ante Sven Lundberg Qualified Annuity Interest Trust VIII | ||
| Sven Ante Lundberg | MRUS | Common Shares | Gift | -100% | -12,215 | 0 | 25 Nov 2025 | Ante S Lundberg Qualified Annuity Int Trust VII | ||
| Sven Ante Lundberg | MRUS | Common Shares | Gift | -100% | -14,198 | 0 | 25 Nov 2025 | Ante Sven Lundberg Qualified Annuity Interest Trust VI | ||
| Sven Ante Lundberg | MRUS | Common Shares | Gift | 30,297 | 30,297 | 25 Nov 2025 | Ante S Lundberg Qualified Annuity Interest Trust XI | |||
| Sven Ante Lundberg | MRUS | Common Shares | Gift | -100% | -30,297 | 0 | 25 Nov 2025 | Direct | ||
| Harry Shuman | MRUS | Common Shares | Sale | -43% | $796,136 | $95.92 | -8,300 | 11,002 | 25 Nov 2025 | Direct |
| Harry Shuman | MRUS | Common Shares | Options Exercise | 75.4% | 8,300 | 19,302 | 25 Nov 2025 | Direct | ||
| Harry Shuman | MRUS | Share Option (right to buy) | Options Exercise | -63.8% | -8,300 | 4,700 | 25 Nov 2025 | Direct |
* marks a reported price that did not pass the local price check.