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Metsera, Inc.

MTSRDelisted Nov 13, 2025
Industry
Pharmaceutical Preparations
SEC CIK
0002040807

Metsera, Inc. was delisted on Nov 13, 2025; its insiders filed their last Form 4 on Nov 17, 2025; 155 institutions reported holding it in 13F filings for Q3 2025, worth $3.39B in total; no superinvestor held it.

13F holders, Q2 2025

Institutional positions in Metsera, Inc. as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
109
+29 vs. Q1 2025
Shares held
61.1M
+6.47M (+11.8%) vs. Q1 2025
Total value
$1.74B
+$249.0M (+16.7%) vs. Q1 2025
New holders
39
48 more added
Sold out
10
10 more reduced

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MTSR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 109 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 0 institutionsQ1 2024: 0 institutionsQ2 2024: 0 institutionsQ3 2024: 0 institutionsQ4 2024: 0 institutionsQ1 2025: 80 institutionsQ2 2025: 109 institutionsQ3 2025: 155 institutionsQ4 2025: 1 institutionQ1 2026: 0 institutionsQ2 2026: 0 institutions
Value heldQ2 2025: $1.74B
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $0Q1 2024: $0Q2 2024: $0Q3 2024: $0Q4 2024: $0Q1 2025: $1.49BQ2 2025: $1.74BQ3 2025: $3.39BQ4 2025: $564Q1 2026: $0Q2 2026: $0
Institutions holding MTSR and their total value by quarter
QuarterHoldersValue
Q2 20260$0
Q1 20260$0
Q4 20251$564
Q3 2025155$3.39B
Q2 2025109$1.74B
Q1 202580$1.49B
Q4 20240$0
Q3 20240$0
Q2 20240$0
Q1 20240$0
Q4 20230$0
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Metsera, Inc.; share changes are against Q1 2025.

Institutions holding MTSR in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
FMR LLC15,758,330$448.3M0.03%+590,522+3.9%Added
Alphabet Inc.4,961,744$141.2M6.61%00.0%Unchanged
Softbank Group Corp4,819,884$137.1M0.55%+4,819,884New
MIC Capital Management UK LLP4,539,540$129.1M25.36%00.0%Unchanged
VR Adviser, LLC3,750,662$106.7M8.00%00.0%Unchanged
Wellington Management Group LLP3,427,432$97.5M0.02%+1,025,441+42.7%Added
Janus Henderson Group PLC3,387,963$96.4M0.05%+482,501+16.6%Added
T. Rowe Price Investment Management, Inc.3,004,853$85.5M0.05%+111,844+3.9%Added
Falcon Edge Capital, LP2,384,050$67.8M7.31%00.0%Unchanged
Viking Global Investors LPSuperinvestorViking Global Investors1,616,612$46.0M0.13%00.0%Unchanged
Vanguard Group Inc1,491,479$42.4M0.00%+24,468+1.7%Added
Alliancebernstein L.P.1,421,359$40.4M0.01%+218,407+18.2%Added
Price T Rowe Associates Inc1,368,573$38.9M0.00%−188,914−12.1%Reduced
BlackRock, Inc.1,237,125$35.2M0.00%−577,228−31.8%Reduced
Deep Track Capital, LP1,094,408$31.1M1.00%00.0%Unchanged
Ra Capital Management, L.P.675,525$19.2M0.32%00.0%Unchanged
State Street Corp600,203$17.1M0.00%+351,555+141.4%Added
Geode Capital Management, LLC466,955$13.3M0.00%+32,308+7.4%Added
Woodline Partners LP400,785$11.4M0.06%+100,568+33.5%Added
Cormorant Asset Management, LP400,000$11.4M0.85%00.0%Unchanged
Eventide Asset Management, LLC396,160$11.3M0.20%+146,160+58.5%Added
Royce & Associates LP331,280$9.42M0.10%+331,280New
Jennison Associates LLC312,290$8.88M0.01%−43,277−12.2%Reduced
American Century Companies Inc287,674$8.18M0.00%+1,467+0.5%Added
EcoR1 Capital, LLC271,529$7.72M0.46%+221,529+443.1%Added
Massachusetts Financial Services Co253,712$7.22M0.00%−227,967−47.3%Reduced
Citadel Advisors LLC230,818$6.57M0.01%+182,323+376.0%Added
Silverarc Capital Management, LLC207,581$5.91M1.21%+94,822+84.1%Added
Logos Global Management LP200,000$5.69M0.76%+200,000New
Charles Schwab Investment Management Inc136,406$3.88M0.00%+11,124+8.9%Added
Northern Trust Corp135,748$3.86M0.00%+13,429+11.0%Added
AXA S.A.114,405$3.25M0.01%+114,405New
Ensign Peak Advisors, Inc107,318$3.05M0.01%+107,318New
Tang Capital Management LLC100,000$2.85M0.14%+100,000New
Ikarian Capital, LLC77,316$2.20M0.73%−72,684−48.5%Reduced
Morgan Stanley63,806$1.82M0.00%+18,338+40.3%Added
Alps Advisors Inc56,666$1.61M0.01%+56,666New
Barclays PLC56,091$1.60M0.00%+36,203+182.0%Added
Manufacturers Life Insurance Company, The55,232$1.57M0.00%+47,078+577.4%Added
Alyeska Investment Group, L.P.55,000$1.56M0.01%+55,000New
UBS Asset Management Americas Inc53,085$1.51M0.00%+53,085New
Bank of America Corp50,677$1.44M0.00%+40,071+377.8%Added
SG Americas Securities, LLC47,664$1.36M0.01%+43,017+925.7%Added
UBS Group AG46,268$1.32M0.00%−59,007−56.1%Reduced
Exchange Traded Concepts, LLC40,528$1.15M0.01%+40,528New
Swiss National Bank40,100$1.14M0.00%+40,100New
Bank of New York Mellon Corp39,521$1.12M0.00%+7,027+21.6%Added
Goldman Sachs Group Inc38,950$1.11M0.00%+18,094+86.8%Added
Nuveen, LLC37,462$1.07M0.00%+17,145+84.4%Added
TD Asset Management Inc36,832$1.05M0.00%−39,992−52.1%Reduced
Sofinnova Investments, Inc.36,191$1.03M0.07%−609−1.7%Reduced
Rhumbline Advisers25,580$727.7K0.00%+6,475+33.9%Added
Schroder Investment Management Group25,578$727.7K0.00%+25,578New
California State Teachers Retirement System24,005$682.9K0.00%+22,866+2,007.6%Added
Boothbay Fund Management, LLC23,347$664.2K0.02%−24,758−51.5%Reduced
Legal & General Group Plc23,246$661.3K0.00%+21,713+1,416.4%Added
Susquehanna International Group, LLP21,288$605.6K0.00%+2,176+11.4%Added
Rafferty Asset Management, LLC19,292$548.9K0.00%+19,292New
Wells Fargo & Company17,032$484.6K0.00%+8,839+107.9%Added
Prudential Financial Inc16,070$457.2K0.00%+1,170+7.9%Added
JPMorgan Chase & Co15,425$438.8K0.00%+8,130+111.4%Added
Intech Investment Management LLC14,060$400.0K0.00%+14,060New
CI Private Wealth, LLC13,114$373.1K0.00%+13,114New
Invesco Ltd.11,974$340.7K0.00%+2,000+20.1%Added
Deutsche Bank AG11,884$338.1K0.00%−1,856−13.5%Reduced
Verition Fund Management LLC11,656$331.6K0.00%+11,656New
Squarepoint Ops LLC11,497$327.1K0.00%+3,662+46.7%Added
Citigroup Inc10,954$311.6K0.00%+103+0.9%Added
MetLife Investment Management10,854$308.8K0.00%+1,512+16.2%Added
Mirae Asset Global ETFs Holdings Ltd.10,665$303.6K0.00%+1,539+16.9%Added
Atom Investors LP10,250$291.6K0.03%+10,250New
Cantor Fitzgerald, L. P.10,200$290.2K0.01%+10,200New
Bellevue Group AG7,800$221.9K0.00%+7,800New
New York State Common Retirement Fund6,000$170.7K0.00%+1,200+25.0%Added
Simplex Trading, LLC5,798$164.0K0.00%+5,798New
Wexford Capital LP5,633$160.3K0.04%+5,633New
KLP Kapitalforvaltning AS4,300$122.3K0.00%+4,300New
Police & Firemen's Retirement System of New Jersey4,293$122.1K0.00%+1,056+32.6%Added
STRS Ohio2,800$79.7K0.00%00.0%Unchanged
Virtus Investment Advisers, Inc.2,719$77.4K0.03%+2,719New
Tower Research Capital LLC (TRC)1,638$46.6K0.00%+65+4.1%Added
BNP Paribas Arbitrage, SA1,600$45.5K0.00%+800+100.0%Added
Ameritas Investment Partners, Inc.1,560$44.4K0.00%00.0%Unchanged
Advisor Group Holdings, Inc.946$26.9K0.00%+296+45.5%Added
CWM, LLC593$17.0K0.00%+593New
Amalgamated Bank532$15.0K0.00%00.0%Unchanged
Royal Bank of Canada383$11.0K0.00%+312+439.4%Added
GAMMA Investing LLC381$10.8K0.00%+381New
SBI Securities Co., Ltd.315$8.96K0.00%+163+107.2%Added
Salem Investment Counselors Inc250$7.11K0.00%+50+25.0%Added
Sterling Capital Management LLC215$6.12K0.00%+89+70.6%Added
The PNC Financial Services Group, Inc.190$5.41K0.00%+173+1,017.6%Added
Raymond James Financial Inc187$5.32K0.00%+187New
Quarry LP158$4.50K0.00%+158New
Massmutual Trust Co FSB138$3.93K0.00%+138New
Bell Investment Advisors, Inc135$3.84K0.00%+135New
Versant Capital Management, Inc76$2.16K0.00%+76New
Nisa Investment Advisors, LLC75$2.13K0.00%+66+733.3%Added
EverSource Wealth Advisors, LLC51$1.45K0.00%+51New
SRS Capital Advisors, Inc.39$1.11K0.00%+9+30.0%Added