Merus
MRUS
MRUS was delisted on the 29th of December, 2025.
91 hedge funds and large institutions have $564M invested in Merus in 2022 Q4 according to their latest regulatory filings, with 16 funds opening new positions, 30 increasing their positions, 30 reducing their positions, and 24 closing their positions.
1,127% more call options, than puts
Call options by funds: $626K | Put options by funds: $51K
3.91% more ownership
Funds ownership: 74.8% → 78.71% (+3.9%)
0% more repeat investments, than reductions
Existing positions increased: 30 | Existing positions reduced: 30
9% less funds holding
Funds holding: 100 → 91 (-9)
17% less capital invested
Capital invested by funds: $677M → $564M (-$114M)
20% less funds holding in top 10
Funds holding in top 10: 5 → 4 (-1)
33% less first-time investments, than exits
New positions opened: 16 | Existing positions closed: 24
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
+$30.9M |
| 2 |
VA
VR Adviser
New York
|
+$21.6M |
| 3 |
Franklin Resources
San Mateo,
California
|
+$9.5M |
| 4 |
CG
Carmignac Gestion
Paris,
France
|
+$7.92M |
| 5 |
Federated Hermes
Pittsburgh,
Pennsylvania
|
+$5.75M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
WP
Woodline Partners
San Francisco,
California
|
-$21.1M |
| 2 |
MB
MPM BioImpact
Boston,
Massachusetts
|
-$18.4M |
| 3 |
PBA
Paradigm Biocapital Advisors
New York
|
-$11.3M |
| 4 |
Lord, Abbett & Co
Jersey City,
New Jersey
|
-$8.46M |
| 5 |
BI
BVF Inc
San Francisco,
California
|
-$8.2M |
MRUS Hedge Fund Activity: Q4 2022 in Review
91 institutional investors reported a position in Merus (MRUS) for Q4 2022, worth a combined $564M — down 17% from $677M a quarter earlier.
Sellers outnumbered buyers: 24 funds closed out of MRUS and 16 opened new positions — a net loss of 8 holders — while 30 trimmed existing stakes and 30 added.
The largest buyer was Wellington Management Group, adding an estimated $30.9M. The largest seller was Woodline Partners, exiting entirely with an estimated $21.1M sold.
- 91 institutional investors held Merus (MRUS) as of Q4 2022, down from 100 in Q3 2022.
- Funds reported $564M of Merus stock for Q4 2022, down 17% quarter-over-quarter.
- 16 funds opened new Merus positions in Q4 2022 and 24 closed out, a net change of -8 holders.
- The largest Merus buyer in Q4 2022 was Wellington Management Group, an estimated $30.9M added.
- The largest Merus seller in Q4 2022 was Woodline Partners, an estimated $21.1M sold.
Based on aggregated 13F filings for Q4 2022.