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MRUS

Merus
MRUS

Delisted

MRUS was delisted on the 29th of December, 2025.

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95 hedge funds and large institutions have $869M invested in Merus in 2022 Q1 according to their latest regulatory filings, with 10 funds opening new positions, 45 increasing their positions, 24 reducing their positions, and 18 closing their positions.

New
Increased
Maintained
Reduced
Closed

88% more repeat investments, than reductions

Existing positions increased: 45 | Existing positions reduced: 24

0.96% less ownership

Funds ownership: 77.34% → 76.38% (-0.96%)

8% less funds holding

Funds holding: 103 → 95 (-8)

11% less funds holding in top 10

Funds holding in top 10: 9 → 8 (-1)

17% less capital invested

Capital invested by funds: $1.05B → $869M (-$180M)

44% less first-time investments, than exits

New positions opened: 10 | Existing positions closed: 18

Holders
95
Holders Change
-8
Holders Change %
-7.77%
% of All Funds
0%
Holding in Top 10
8
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-11.11%
% of All Funds
0%
New
10
Increased
45
Reduced
24
Closed
18
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
ACM
Aquilo Capital Management
California
+$9.78M
2
CC
Commodore Capital
New York
+$8.51M
3
PBA
Paradigm Biocapital Advisors
New York
+$6.69M
4
LCM
Lynx1 Capital Management
Puerto Rico
+$2.95M
5
Citadel Advisors
Citadel Advisors
Florida
+$2.18M

Top Sellers

Rank Fund Capital Flow
1
FM
Frazier Management
Washington
-$17.8M
2
Millennium Management
Millennium Management
New York
-$8.61M
3
RI
RTW Investments
New York
-$6.24M
4
Wellington Management Group
Wellington Management Group
Massachusetts
-$5.26M
5
BlackRock
BlackRock
New York
-$4.31M

MRUS Hedge Fund Activity: Q1 2022 in Review

95 institutional investors reported a position in Merus (MRUS) for Q1 2022, worth a combined $869M — down 17% from $1.05B a quarter earlier.

Sellers outnumbered buyers: 18 funds closed out of MRUS and 10 opened new positions — a net loss of 8 holders — while 24 trimmed existing stakes and 45 added.

The largest buyer was Aquilo Capital Management, adding an estimated $9.78M. The largest seller was Frazier Management, exiting entirely with an estimated $17.8M sold.

  • 95 institutional investors held Merus (MRUS) as of Q1 2022, down from 103 in Q4 2021.
  • Funds reported $869M of Merus stock for Q1 2022, down 17% quarter-over-quarter.
  • 10 funds opened new Merus positions in Q1 2022 and 18 closed out, a net change of -8 holders.
  • The largest Merus buyer in Q1 2022 was Aquilo Capital Management, an estimated $9.78M added.
  • The largest Merus seller in Q1 2022 was Frazier Management, an estimated $17.8M sold.

Based on aggregated 13F filings for Q1 2022.