Metsera, Inc. - COMMON STOCK (MTSR)

Historical Holders from Q1 2025 to Q4 2025

Type / Class
Equity / COMMON STOCK
Symbol
MTSR
Shares outstanding
104,955,902
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares as of 30 Sep 2025
64,760,616
Holdings value
$3,388,896,544
% of all portfolios
0%
Share change
+3,634,992
Value change
+$398,027,017
Average buys %
+0%
Average sells %
-0%
Number of holders
152
Price from insider filings
$61.23
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Metsera, Inc. - COMMON STOCK (MTSR) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Validae Health, L.P. 12% $460,045,273 13,136,644 Christopher Whitten Bernard 31 Mar 2025
VANGUARD GROUP INC 5.5% $304,823,049 5,824,993 The Vanguard Group 30 Sep 2025
JANUS HENDERSON GROUP PLC 5.1% $280,110,530 5,352,751 JANUS HENDERSON GROUP PLC 30 Sep 2025
As of 30 Sep 2025, Metsera, Inc. - COMMON STOCK (MTSR) has 152 institutional shareholders filing 13F forms. They hold 64,760,616 shares of 104,955,902 outstanding shares (62%) .

Top 25 institutional shareholders own 57% of the company.

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
FMR LLC 13% 13,891,986 -12% 0.04% $726,967,628
VANGUARD GROUP INC 5.5% 5,824,993 +291% 0% $304,821,884
JANUS HENDERSON GROUP PLC 5.1% 5,352,751 +58% 0.13% $280,075,022
BlackRock, Inc. 3.7% 3,835,309 +210% 0% $200,701,721
Alphabet Inc. 3.6% 3,783,528 -24% 8.2% $197,992,020
VR ADVISER, LLC 3.6% 3,750,662 0% 11% $196,272,142
WELLINGTON MANAGEMENT GROUP LLP 3.5% 3,659,465 +6.8% 0.03% $191,499,804
SOFTBANK GROUP CORP. 3.5% 3,654,691 -24% 0.74% $191,249,980
HBK INVESTMENTS L P 3% 3,200,000 2.5% $167,456,000
STATE STREET CORP 2.4% 2,511,076 +318% 0% $131,404,607
Alpha Wave Global, LP 2.3% 2,384,050 0% 13% $124,757,337
T. Rowe Price Investment Management, Inc. 2.2% 2,327,354 -23% 0.07% $121,791,000
GEODE CAPITAL MANAGEMENT, LLC 1.3% 1,403,002 +200% 0% $73,433,852
RA CAPITAL MANAGEMENT, L.P. 0.64% 675,525 0% 0.44% $35,350,223
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.49% 511,465 +275% 0% $26,764,963
BANK OF AMERICA CORP /DE/ 0.43% 455,605 +799% 0% $23,841,809
NORTHERN TRUST CORP 0.42% 437,839 +223% 0% $22,912,115
Woodline Partners LP 0.38% 400,785 0% 0.1% $20,973,079
Cormorant Asset Management, LP 0.38% 400,000 0% 1.4% $20,932,000
EVENTIDE ASSET MANAGEMENT, LLC 0.38% 396,160 0% 0.34% $20,731,053
JPMORGAN CHASE & CO 0.31% 325,178 +2008% 0% $17,016,564
Hudson Bay Capital Management LP 0.31% 323,836 0.1% $16,946,338
AMERICAN CENTURY COMPANIES INC 0.27% 286,448 -0.43% 0.01% $14,989,823
EcoR1 Capital, LLC 0.26% 271,529 0% 0.68% $14,209,113
GLAZER CAPITAL, LLC 0.26% 270,662 0.48% $14,164,000

Institutional Holders of Metsera, Inc. - COMMON STOCK (MTSR) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q4 0 $0 -$40,975 0
2025 Q3 64,760,616 $3,388,896,544 +$398,027,017 $52.33 152
2025 Q2 61,110,674 $1,738,613,325 +$190,248,202 $28.45 107
2025 Q1 54,515,246 $1,486,158,054 +$1,485,324,104 $27.22 79