Merus Ownership | Who Owns Merus?

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Merus Ownership Summary

Merus is owned by 102.52% institutional investors, 2.04% insiders. Fmr is the largest institutional shareholder, holding 10.11% of MRUS shares. Vanguard Health Care Inv is the top mutual fund, with 2.31% of its assets in Merus shares.

MRUS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Merus	102.52%	2.04%	-4.56%
Sector	Healthcare Stocks	57.39%	9.93%	32.68%
Industry	Biotech Stocks	68.48%	9.65%	21.87%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Fmr	6.90M	10.11%	$290.12M
Rtw investments, lp	4.17M	6.11%	$175.32M
Commodore capital lp	3.87M	5.68%	$162.91M
Wellington management group llp	3.50M	5.12%	$147.08M
Deerfield management company, l.p. (series c)	2.97M	4.36%	$125.01M
Samlyn capital	2.67M	3.91%	$112.20M
Boxer capital	1.90M	3.27%	$112.42M
Avoro capital advisors	2.13M	3.11%	$89.36M
Franklin resources	1.98M	2.91%	$83.45M
Holocene advisors, lp	1.88M	2.75%	$79.05M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Lynx1 capital management lp	1.58M	24.92%	$66.47M
Commodore capital lp	3.87M	11.94%	$162.91M
Artia global partners lp	463.84K	6.97%	$19.50M
Stempoint capital lp	614.81K	6.45%	$25.85M
Silverarc capital management	680.85K	6.26%	$28.63M
Boxer capital	1.90M	5.92%	$112.42M
Dafna capital management	451.80K	4.83%	$19.00M
Nan fung group	120.04K	4.32%	$5.05M
Ally bridge group (ny)	116.80K	4.21%	$4.91M
Saturn v capital management	234.64K	3.86%	$9.87M

Top Buyers

Holder	Shares	% Assets	Change
Ubs group	1.11M	0.01%	1.10M
Avoro capital advisors	2.13M	1.26%	770.00K
Wellington management group llp	3.50M	0.03%	610.14K
Commodore capital lp	3.87M	11.94%	524.18K
Morgan stanley	1.50M	0.01%	523.79K

Top Sellers

Holder	Shares	% Assets	Change
Bvf inc/il	-	-	-1.28M
Medicxi ventures management (jersey)	-	-	-1.17M
Paradigm biocapital advisors lp	1.69M	2.47%	-765.00K
Lord, abbett	-	-	-723.99K
Fairmount funds management	-	-	-717.25K

New Positions

Holder	Shares	% Assets	Change	Value
Gilead sciences	452.53K	1.23%	452.53K	$19.03M
Octagon capital advisors lp	308.00K	2.13%	308.00K	$12.95M
Caligan partners lp	255.00K	2.72%	255.00K	$10.72M
Camber capital management lp	250.00K	0.24%	250.00K	$10.51M
Impax asset management group	180.00K	0.03%	180.00K	$7.57M

Sold Out

Holder	Change
Capital performance advisors llp	-4.00
Twin tree management, lp	-6.00
Global retirement partners	-14.00
Hollencrest capital management	-90.00
Mather group, llc.	-100.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2024	197	0.51%	69,971,572	1.37%	102	1.00%	107	2.88%	54	5.88%
Sep 30, 2024	195	4.84%	69,020,442	3.79%	101	0.77%	104	-15.45%	51	21.43%
Jun 30, 2024	185	12.80%	66,502,612	29.82%	114	1.16%	123	43.02%	42	-19.23%
Mar 31, 2024	164	21.48%	51,225,619	0.09%	99	1.10%	86	17.81%	52	33.33%
Dec 31, 2023	135	15.38%	51,180,395	7.98%	95	0.99%	73	19.67%	39	39.29%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard Health Care Inv	1.58M	2.31%	463.03K
Fidelity Select Health Care	1.10M	1.60%	3.10K
Federated Hermes Kaufmann Small Cap Grow	941.49K	1.38%	-168.61K
Federated Hermes Kaufmann Small Cap A	941.49K	1.38%	-168.61K
Polar Capital Healthcare Opports Inc	948.58K	1.37%	-
Fidelity Select Biotechnology	874.95K	1.27%	-
Franklin Biotechnology Discv A(acc)USD	870.48K	1.26%	-
HBM Healthcare Investments AG Ord	855.20K	1.25%	-
Strategic Advisers Fidelity US TtlStk	714.54K	1.03%	13.09K
Fidelity Advisor Health Care I	671.80K	0.97%	1.80K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 21, 2025	Shuman Harry	VP Controller, PAO	Sell	$48.55K
Mar 21, 2025	Shuman Harry	VP Controller, PAO	Sell	$145.44K
Aug 21, 2024	Shuman Harry	VP Controller, PAO	Sell	$135.00K
Jun 27, 2024	Silverman Peter B.	COO & GC	Sell	$600.00K
Jun 17, 2024	Silverman Peter B.	COO & GC	Sell	$3.50M

Insider Transactions Trends

Date	Buy	Sell
2025 Q1	-	-
2024 Q3	-	1
2024 Q2	-	6
2023 Q4	-	4
2023 Q2	-	1

MRUS Ownership FAQ

Who Owns Merus?

Merus shareholders are primarily institutional investors at 102.52%, followed by 2.04% insiders and -4.56% retail investors. The average institutional ownership in Merus's industry, Biotech Stocks , is 68.48%, which Merus exceeds.

Who owns the most shares of Merus?

Merus’s largest shareholders are Fmr (6.9M shares, 10.11%), Rtw investments, lp (4.17M shares, 6.11%), and Commodore capital lp (3.87M shares, 5.68%). Together, they hold 21.89% of Merus’s total shares outstanding.

Does Blackrock own Merus?

BlackRock is not among the top 10 institutional shareholders of Merus.

Who is Merus’s biggest shareholder by percentage of total assets invested?

Lynx1 capital management lp is Merus’s biggest shareholder by percentage of total assets invested, with 24.92% of its assets in 1.58M Merus shares, valued at 66.47M$.

Who is the top mutual fund holder of Merus shares?

Vanguard Health Care Inv is the top mutual fund holder of Merus shares, with 2.31% of its total shares outstanding invested in 1.58M Merus shares.

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