We are live on ! Find out more
MTSR

Metsera Inc
MTSR

Delisted

MTSR was delisted on the 13th of November, 2025.

Back to rankings

80 hedge funds and large institutions have $1.49B invested in Metsera Inc in 2025 Q1 according to their latest regulatory filings, with 80 funds opening new positions, increasing their positions, reducing their positions, and closing their positions.

New
Increased
Maintained
Reduced
Closed

52.02% more ownership

Funds ownership: 0% → 52.02% (+52%)

Holders
80
Holders Change
+80
Holders Change %
–
% of All Funds
1.07%
Holding in Top 10
4
Holding in Top 10 Change
+4
Holding in Top 10 Change %
% of All Funds
0.05%
New
80
Increased
–
Reduced
–
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Fidelity Investments
Fidelity Investments
Massachusetts
+$430M
2
AI
Alphabet Inc
California
+$141M
3
MCMU
MIC Capital Management (UK)
United Kingdom
+$129M
4
VA
VR Adviser
New York
+$106M
5
Janus Henderson Group
Janus Henderson Group
+$82.4M

Top Sellers

No sellers this quarter
Name Holding Trade Value Shares
Change 		Change in
Stake
B
26
Braidwell
Connecticut
$4.76M +$4.96M +175,000 New
IC
27
Ikarian Capital
Texas
$4.08M +$4.25M +150,000 New
SL
28
Siren LLC
Connecticut
$4.08M +$4.25M +150,000 New
Norges Bank
29
Norges Bank
Norway
$3.47M +$3.61M +127,442 New
Charles Schwab
30
Charles Schwab
California
$3.41M +$3.55M +125,282 New
Northern Trust
31
Northern Trust
Illinois
$3.33M +$3.47M +122,319 New
SCM
32
Silverarc Capital Management
Massachusetts
$3.07M +$3.2M +112,759 New
UBS Group
33
UBS Group
Switzerland
$2.87M +$2.98M +105,275 New
TD Asset Management
34
TD Asset Management
Ontario, Canada
$2.09M +$2.18M +76,824 New
Millennium Management
35
Millennium Management
New York
$2.01M +$2.09M +73,698 New
EC
36
EcoR1 Capital
California
$1.36M +$1.42M +50,000 New
Citadel Advisors
37
Citadel Advisors
Florida
$1.32M +$1.37M +48,495 New
BFM
38
Boothbay Fund Management
New York
$1.31M +$1.36M +48,105 New
Morgan Stanley
39
Morgan Stanley
New York
$1.24M +$1.29M +45,468 New
SI
40
Sofinnova Investments
California
$1M +$1.04M +36,800 New
Bank of New York Mellon
41
Bank of New York Mellon
New York
$884K +$921K +32,494 New
SSA
42
Schonfeld Strategic Advisors
New York
$582K +$606K +21,395 New
Goldman Sachs
43
Goldman Sachs
New York
$568K +$591K +20,856 New
Nuveen
44
Nuveen
North Carolina
$553K +$576K +20,317 New
Barclays
45
Barclays
United Kingdom
$541K +$564K +19,888 New
Susquehanna International Group
46
Susquehanna International Group
Pennsylvania
$520K +$542K +19,112 New
RhumbLine Advisers
47
RhumbLine Advisers
Massachusetts
$520K +$542K +19,105 New
Prudential Financial
48
Prudential Financial
New Jersey
$406K +$422K +14,900 New
Deutsche Bank
49
Deutsche Bank
Germany
$374K +$389K +13,740 New
Citigroup
50
Citigroup
New York
$295K +$308K +10,851 New
1
2
3 4

MTSR Hedge Fund Activity: Q1 2025 in Review

80 of the 7,464 institutional investors tracked by Wall St. Rank reported a position in Metsera Inc (MTSR) for Q1 2025, worth a combined $1.49B.

Buyers outnumbered sellers: 80 funds opened new MTSR positions and 0 closed out — a net gain of 80 holders — while 0 added to existing stakes and 0 trimmed.

The largest buyer was Fidelity Investments, opening a new position worth an estimated $430M.

  • 80 institutional investors held Metsera Inc (MTSR) as of Q1 2025, up from 0 in Q4 2024.
  • Funds reported $1.49B of Metsera Inc stock for Q1 2025.
  • 80 funds opened new Metsera Inc positions in Q1 2025 and 0 closed out, a net change of +80 holders.
  • The largest Metsera Inc buyer in Q1 2025 was Fidelity Investments, an estimated $430M added.

Based on aggregated 13F filings for Q1 2025.