Merus
MRUS
MRUS was delisted on the 29th of December, 2025.
43 hedge funds and large institutions have $374M invested in Merus in 2020 Q4 according to their latest regulatory filings, with 8 funds opening new positions, 14 increasing their positions, 10 reducing their positions, and 6 closing their positions.
72% more capital invested
Capital invested by funds: $218M → $374M (+$157M)
40% more repeat investments, than reductions
Existing positions increased: 14 | Existing positions reduced: 10
33% more first-time investments, than exits
New positions opened: 8 | Existing positions closed: 6
10.76% more ownership
Funds ownership: 62.62% → 73.38% (+11%)
5% more funds holding
Funds holding: 41 → 43 (+2)
0% more funds holding in top 10
Funds holding in top 10: 2 → 2 (0)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BC
Boxer Capital
San Diego,
California
|
+$21.1M |
| 2 |
IC
Ikarian Capital
Dallas,
Texas
|
+$7.93M |
| 3 |
Wellington Management Group
Boston,
Massachusetts
|
+$7.08M |
| 4 |
Federated Hermes
Pittsburgh,
Pennsylvania
|
+$6.09M |
| 5 |
OM
Opaleye Management
Boston,
Massachusetts
|
+$5.21M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Artisan Partners
Milwaukee,
Wisconsin
|
-$3.43M |
| 2 |
AG
Artal Group
Luxembourg
|
-$3M |
| 3 |
CAM
Cormorant Asset Management
Boston,
Massachusetts
|
-$1.17M |
| 4 |
AA
ALPS Advisors
Denver,
Colorado
|
-$445K |
| 5 |
Millennium Management
New York
|
-$373K |
MRUS Hedge Fund Activity: Q4 2020 in Review
43 institutional investors reported a position in Merus (MRUS) for Q4 2020, worth a combined $374M — up 72% from $218M a quarter earlier.
Buyers outnumbered sellers: 8 funds opened new MRUS positions and 6 closed out — a net gain of 2 holders — while 14 added to existing stakes and 10 trimmed.
The largest buyer was Boxer Capital, opening a new position worth an estimated $21.1M. The largest seller was Artisan Partners, exiting entirely with an estimated $3.43M sold.
- 43 institutional investors held Merus (MRUS) as of Q4 2020, up from 41 in Q3 2020.
- Funds reported $374M of Merus stock for Q4 2020, up 72% quarter-over-quarter.
- 8 funds opened new Merus positions in Q4 2020 and 6 closed out, a net change of +2 holders.
- The largest Merus buyer in Q4 2020 was Boxer Capital, an estimated $21.1M added.
- The largest Merus seller in Q4 2020 was Artisan Partners, an estimated $3.43M sold.
Based on aggregated 13F filings for Q4 2020.