Metsera Inc
MTSR
MTSR was delisted on the 13th of November, 2025.
109 hedge funds and large institutions have $1.74B invested in Metsera Inc in 2025 Q2 according to their latest regulatory filings, with 39 funds opening new positions, 48 increasing their positions, 10 reducing their positions, and 10 closing their positions.
380% more repeat investments, than reductions
Existing positions increased: 48 | Existing positions reduced: 10
290% more first-time investments, than exits
New positions opened: 39 | Existing positions closed: 10
36% more funds holding
Funds holding: 80 → 109 (+29)
17% more capital invested
Capital invested by funds: $1.49B → $1.74B (+$249M)
6.15% more ownership
Funds ownership: 52.02% → 58.17% (+6.2%)
0% more funds holding in top 10
Funds holding in top 10: 4 → 4 (0)
40% less call options, than puts
Call options by funds: $1.62M | Put options by funds: $2.69M
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SoftBank Group
Tokyo,
Japan
|
+$120M |
| 2 |
Wellington Management Group
Boston,
Massachusetts
|
+$25.5M |
| 3 |
Fidelity Investments
Boston,
Massachusetts
|
+$14.7M |
| 4 |
Janus Henderson Group
London,
|
+$12M |
| 5 |
State Street
Boston,
Massachusetts
|
+$8.73M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PBA
Paradigm Biocapital Advisors
New York
|
-$32.4M |
| 2 |
BlackRock
New York
|
-$14.3M |
| 3 |
DM
Deerfield Management
New York
|
-$13.6M |
| 4 |
Massachusetts Financial Services
Boston,
Massachusetts
|
-$5.66M |
| 5 |
B
Braidwell
Stamford,
Connecticut
|
-$4.76M |
MTSR Hedge Fund Activity: Q2 2025 in Review
109 of the 7,604 institutional investors tracked by Wall St. Rank reported a position in Metsera Inc (MTSR) for Q2 2025, worth a combined $1.74B — up 17% from $1.49B a quarter earlier.
Buyers outnumbered sellers: 39 funds opened new MTSR positions and 10 closed out — a net gain of 29 holders — while 48 added to existing stakes and 10 trimmed.
The largest buyer was SoftBank Group, opening a new position worth an estimated $120M. The largest seller was Paradigm Biocapital Advisors, exiting entirely with an estimated $32.4M sold.
- 109 institutional investors held Metsera Inc (MTSR) as of Q2 2025, up from 80 in Q1 2025.
- Funds reported $1.74B of Metsera Inc stock for Q2 2025, up 17% quarter-over-quarter.
- 39 funds opened new Metsera Inc positions in Q2 2025 and 10 closed out, a net change of +29 holders.
- The largest Metsera Inc buyer in Q2 2025 was SoftBank Group, an estimated $120M added.
- The largest Metsera Inc seller in Q2 2025 was Paradigm Biocapital Advisors, an estimated $32.4M sold.
Based on aggregated 13F filings for Q2 2025.