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, Q3 2025
Institutional positions in Metsera, Inc. as of Sep 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
MTSR is no longer listed, so this page shows Q3 2025. 13F filings for later quarters list far fewer holders.
- Institutional holders
- 155
- +46 vs. Q2 2025
- Shares held
- 64.8M
- +3.65M (+6.0%) vs. Q2 2025
- Total value
- $3.39B
- +$1.65B (+94.9%) vs. Q2 2025
- New holders
- 69
- 45 more added
- Sold out
- 23
- 20 more reduced
Compare with Q2 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 0 | $0 |
| Q4 2025 | 1 | $564 |
| Q3 2025 | 155 | $3.39B |
| Q2 2025 | 109 | $1.74B |
| Q1 2025 | 80 | $1.49B |
| Q4 2024 | 0 | $0 |
| Q3 2024 | 0 | $0 |
| Q2 2024 | 0 | $0 |
| Q1 2024 | 0 | $0 |
| Q4 2023 | 0 | $0 |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Metsera, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 13,891,986 | $727.0M | 0.04% | −1,866,344−11.8% | Reduced |
| Vanguard Group Inc | 5,824,993 | $304.8M | 0.00% | +4,333,514+290.6% | Added |
| Janus Henderson Group PLC | 5,352,751 | $280.1M | 0.13% | +1,964,788+58.0% | Added |
| BlackRock, Inc. | 3,835,309 | $200.7M | 0.00% | +2,598,184+210.0% | Added |
| Alphabet Inc. | 3,783,528 | $198.0M | 8.22% | −1,178,216−23.7% | Reduced |
| VR Adviser, LLC | 3,750,662 | $196.3M | 11.05% | 00.0% | Unchanged |
| Wellington Management Group LLP | 3,659,465 | $191.5M | 0.03% | +232,033+6.8% | Added |
| Softbank Group Corp | 3,654,691 | $191.2M | 0.74% | −1,165,193−24.2% | Reduced |
| HBK Investments L P | 3,200,000 | $167.5M | 2.47% | +3,200,000 | New |
| State Street Corp | 2,511,076 | $131.4M | 0.00% | +1,910,873+318.4% | Added |
| Falcon Edge Capital, LP | 2,384,050 | $124.8M | 12.64% | 00.0% | Unchanged |
| T. Rowe Price Investment Management, Inc. | 2,327,354 | $121.8M | 0.07% | −677,499−22.5% | Reduced |
| Geode Capital Management, LLC | 1,403,002 | $73.4M | 0.00% | +936,047+200.5% | Added |
| Ra Capital Management, L.P. | 675,525 | $35.4M | 0.44% | 00.0% | Unchanged |
| Charles Schwab Investment Management Inc | 511,465 | $26.8M | 0.00% | +375,059+275.0% | Added |
| Bank of America Corp | 455,605 | $23.8M | 0.00% | +404,928+799.0% | Added |
| Northern Trust Corp | 437,839 | $22.9M | 0.00% | +302,091+222.5% | Added |
| Woodline Partners LP | 400,785 | $21.0M | 0.10% | 00.0% | Unchanged |
| Cormorant Asset Management, LP | 400,000 | $20.9M | 1.44% | 00.0% | Unchanged |
| Eventide Asset Management, LLC | 396,160 | $20.7M | 0.34% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 325,178 | $17.0M | 0.00% | +309,753+2,008.1% | Added |
| Hudson Bay Capital Management LP | 323,836 | $16.9M | 0.10% | +323,836 | New |
| American Century Companies Inc | 286,448 | $15.0M | 0.01% | −1,226−0.4% | Reduced |
| EcoR1 Capital, LLC | 271,529 | $14.2M | 0.68% | 00.0% | Unchanged |
| Glazer Capital, LLC | 270,662 | $14.2M | 0.48% | +270,662 | New |
| Barclays PLC | 221,064 | $11.6M | 0.00% | +164,973+294.1% | Added |
| Wealthspire Advisors, LLC | 213,085 | $11.2M | 0.06% | +213,085 | New |
| Alpine Associates Management Inc. | 195,200 | $10.2M | 0.62% | +195,200 | New |
| Balyasny Asset Management LLC | 177,228 | $9.27M | 0.02% | +177,228 | New |
| Goldman Sachs Group Inc | 176,847 | $9.25M | 0.00% | +137,897+354.0% | Added |
| Susquehanna International Group, LLP | 168,477 | $8.82M | 0.01% | +147,189+691.4% | Added |
| Bank of New York Mellon Corp | 163,726 | $8.57M | 0.00% | +124,205+314.3% | Added |
| ADAR1 Capital Management, LLC | 152,521 | $7.98M | 0.79% | +152,521 | New |
| UBS Group AG | 140,923 | $7.37M | 0.00% | +94,655+204.6% | Added |
| Avidity Partners Management LP | 140,500 | $7.35M | 1.67% | +140,500 | New |
| Man Group plc | 140,000 | $7.33M | 0.01% | +140,000 | New |
| Nuveen, LLC | 126,111 | $6.60M | 0.00% | +88,649+236.6% | Added |
| Millennium Management LLC | 120,356 | $6.30M | 0.00% | +120,356 | New |
| Ensign Peak Advisors, Inc | 107,318 | $5.62M | 0.01% | 00.0% | Unchanged |
| Rafferty Asset Management, LLC | 103,465 | $5.41M | 0.02% | +84,173+436.3% | Added |
| Royce & Associates LP | 102,300 | $5.35M | 0.05% | −228,980−69.1% | Reduced |
| Greenwich Wealth Management LLC | 93,224 | $4.88M | 0.24% | +93,224 | New |
| Morgan Stanley | 92,938 | $4.86M | 0.00% | +29,132+45.7% | Added |
| SCS Capital Management LLC | 89,375 | $4.68M | 0.05% | +89,375 | New |
| Schonfeld Strategic Advisors LLC | 76,393 | $4.00M | 0.03% | +76,393 | New |
| Rhumbline Advisers | 73,144 | $3.83M | 0.00% | +47,564+185.9% | Added |
| Verition Fund Management LLC | 70,928 | $3.71M | 0.02% | +59,272+508.5% | Added |
| TD Asset Management Inc | 67,732 | $3.54M | 0.00% | +30,900+83.9% | Added |
| Jane Street Group, LLC | 59,451 | $3.11M | 0.00% | +59,451 | New |
| Wells Fargo & Company | 59,071 | $3.09M | 0.00% | +42,039+246.8% | Added |
| TIG Advisors, LLC | 58,353 | $3.05M | 0.19% | +58,353 | New |
| Price T Rowe Associates Inc | 54,328 | $2.84M | 0.00% | −1,314,245−96.0% | Reduced |
| Citigroup Inc | 54,241 | $2.84M | 0.00% | +43,287+395.2% | Added |
| Alliancebernstein L.P. | 53,603 | $2.81M | 0.00% | −1,367,756−96.2% | Reduced |
| Alps Advisors Inc | 49,943 | $2.61M | 0.01% | −6,723−11.9% | Reduced |
| Ameriprise Financial Inc | 47,650 | $2.49M | 0.00% | +47,650 | New |
| Swiss National Bank | 40,700 | $2.13M | 0.00% | +600+1.5% | Added |
| Vestcor Inc | 40,000 | $2.09M | 0.06% | +40,000 | New |
| CNH Partners LLC | 38,959 | $2.04M | 0.05% | +38,959 | New |
| Deutsche Bank AG | 38,926 | $2.04M | 0.00% | +27,042+227.5% | Added |
| Lighthouse Investment Partners, LLC | 36,104 | $1.89M | 0.07% | +36,104 | New |
| Invesco Ltd. | 31,676 | $1.66M | 0.00% | +19,702+164.5% | Added |
| MetLife Investment Management | 31,324 | $1.64M | 0.01% | +20,470+188.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 30,093 | $1.57M | 0.00% | +19,428+182.2% | Added |
| Stifel Financial Corp | 29,963 | $1.57M | 0.00% | +29,963 | New |
| UBS Asset Management Americas Inc | 28,895 | $1.51M | 0.00% | −24,190−45.6% | Reduced |
| Manufacturers Life Insurance Company, The | 28,844 | $1.51M | 0.00% | −26,388−47.8% | Reduced |
| First Trust Advisors LP | 27,691 | $1.45M | 0.00% | +27,691 | New |
| Citadel Advisors LLC | 27,526 | $1.44M | 0.00% | −203,292−88.1% | Reduced |
| Virtu Financial LLC | 25,923 | $1.36M | 0.08% | +25,923 | New |
| Exchange Traded Concepts, LLC | 25,607 | $1.34M | 0.01% | −14,921−36.8% | Reduced |
| SG Americas Securities, LLC | 23,612 | $1.24M | 0.00% | −24,052−50.5% | Reduced |
| Legal & General Group Plc | 23,491 | $1.23M | 0.00% | +245+1.1% | Added |
| Profund Advisors LLC | 22,319 | $1.17M | 0.04% | +22,319 | New |
| California State Teachers Retirement System | 21,877 | $1.14M | 0.00% | −2,128−8.9% | Reduced |
| Water Island Capital LLC | 18,730 | $980.1K | 0.14% | +18,730 | New |
| XTX Topco Ltd | 18,207 | $952.8K | 0.05% | +18,207 | New |
| Harvest Management LLC | 18,000 | $941.9K | 0.46% | +18,000 | New |
| Quinn Opportunity Partners LLC | 17,951 | $939.4K | 0.07% | +17,951 | New |
| Qube Research & Technologies Ltd | 16,034 | $839.1K | 0.00% | +16,034 | New |
| Gabelli Funds LLC | 15,000 | $785.0K | 0.01% | +15,000 | New |
| Police & Firemen's Retirement System of New Jersey | 14,640 | $766.1K | 0.01% | +10,347+241.0% | Added |
| ProShare Advisors LLC | 14,413 | $754.2K | 0.00% | +14,413 | New |
| CSS LLC | 13,531 | $708.1K | 0.04% | +13,531 | New |
| Keebeck Wealth Management, LLC | 12,262 | $641.7K | 0.08% | +12,262 | New |
| BNP Paribas Arbitrage, SA | 10,859 | $568.3K | 0.00% | +9,259+578.7% | Added |
| Dimensional Fund Advisors LP | 10,770 | $563.6K | 0.00% | +10,770 | New |
| Quantinno Capital Management LP | 10,756 | $562.9K | 0.00% | +10,756 | New |
| Hamilton Lane Advisors LLC | 9,810 | $513.4K | 0.30% | +9,810 | New |
| Voya Investment Management LLC | 9,494 | $496.8K | 0.00% | +9,494 | New |
| State Board of Administration of Florida Retirement System | 9,320 | $487.7K | 0.00% | +9,320 | New |
| Knollwood Investment Advisory, LLC | 9,227 | $482.8K | 0.04% | +9,227 | New |
| Simplex Trading, LLC | 9,114 | $476.0K | 0.01% | +3,316+57.2% | Added |
| CI Private Wealth, LLC | 8,743 | $457.5K | 0.00% | −4,371−33.3% | Reduced |
| Fifth Lane Capital, LP | 8,333 | $436.1K | 0.44% | +8,333 | New |
| Prudential Financial Inc | 6,835 | $357.7K | 0.00% | −9,235−57.5% | Reduced |
| AQR Capital Management LLC | 6,666 | $348.8K | 0.00% | +6,666 | New |
| Walleye Capital LLC | 6,230 | $326.0K | 0.00% | +6,230 | New |
| Arizona State Retirement System | 6,205 | $324.7K | 0.00% | +6,205 | New |
| New York State Common Retirement Fund | 6,000 | $314.0K | 0.00% | 00.0% | Unchanged |