Merus
MRUS
MRUS was delisted on the 29th of December, 2025.
113 hedge funds and large institutions have $1.12B invested in Merus in 2023 Q3 according to their latest regulatory filings, with 14 funds opening new positions, 47 increasing their positions, 30 reducing their positions, and 15 closing their positions.
57% more repeat investments, than reductions
Existing positions increased: 47 | Existing positions reduced: 30
25% more funds holding in top 10
Funds holding in top 10: 8 → 10 (+2)
3% more capital invested
Capital invested by funds: $1.09B → $1.12B (+$33.2M)
1% less funds holding
Funds holding: 114 → 113 (-1)
7% less first-time investments, than exits
New positions opened: 14 | Existing positions closed: 15
1.6% less ownership
Funds ownership: 88.75% → 87.16% (-1.6%)
56% less call options, than puts
Call options by funds: $1.32M | Put options by funds: $2.98M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BI
BVF Inc
San Francisco,
California
|
+$27.9M |
| 2 |
RI
RTW Investments
New York
|
+$22.9M |
| 3 |
Balyasny Asset Management
Chicago,
Illinois
|
+$20.9M |
| 4 |
DM
Deerfield Management
New York
|
+$20.5M |
| 5 |
Millennium Management
New York
|
+$14.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Point72 Asset Management
Stamford,
Connecticut
|
-$10.3M |
| 2 |
ACM
Aquilo Capital Management
San Francisco,
California
|
-$8.37M |
| 3 |
PCH
Polar Capital Holdings
London,
United Kingdom
|
-$6.06M |
| 4 |
TLP
Tri Locum Partners
New York
|
-$2.68M |
| 5 |
SCM
Silverarc Capital Management
Boston,
Massachusetts
|
-$2.16M |
MRUS Hedge Fund Activity: Q3 2023 in Review
113 institutional investors reported a position in Merus (MRUS) for Q3 2023, worth a combined $1.12B — up 3.1% from $1.09B a quarter earlier.
Sellers outnumbered buyers: 15 funds closed out of MRUS and 14 opened new positions — a net loss of 1 holder — while 30 trimmed existing stakes and 47 added.
The largest buyer was BVF Inc, adding an estimated $27.9M. The largest seller was Point72 Asset Management, cutting an estimated $10.3M.
- 113 institutional investors held Merus (MRUS) as of Q3 2023, down from 114 in Q2 2023.
- Funds reported $1.12B of Merus stock for Q3 2023, up 3.1% quarter-over-quarter.
- 14 funds opened new Merus positions in Q3 2023 and 15 closed out, a net change of -1 holder.
- The largest Merus buyer in Q3 2023 was BVF Inc, an estimated $27.9M added.
- The largest Merus seller in Q3 2023 was Point72 Asset Management, an estimated $10.3M sold.
Based on aggregated 13F filings for Q3 2023.