MTSR — METSERA INC
Reported value held$1.99B
Funds holding (latest)31
Sector—
MTSR (METSERA INC) is tracked on HoldingsHub across five years of quarterly 13F filings. 31 funds have reported positions historically, with the sum of their latest reported stakes valued at $1.99B. No fund in our coverage reported a position in the latest filing period, which typically means the stock has fallen out of the tracked funds' portfolios rather than that it cannot be bought.
All figures on this page are computed from SEC Form 13F quarterly filings. 13F filers disclose long positions of $100,000 or more within 45 days of quarter end; short positions, options overlays and intra-quarter trades are not included, so treat the numbers as a quarterly snapshot of institutional ownership rather than real-time positioning.
Q3 2025 — 29 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 13.89M | $726.97M | 0.04% | Reduce |
| Vanguard Group history | 5.82M | $304.82M | 0.01% | Add |
| Janus Henderson Group history | 5.35M | $280.08M | 0.13% | Add |
| BlackRock Inc history | 3.84M | $200.70M | 0.00% | Add |
| Wellington Management Group history | 3.66M | $191.50M | 0.04% | Add |
| Geode Capital Management history | 1.40M | $73.43M | 0.01% | Add |
| Charles Schwab Investment Management history | 511.46K | $26.76M | 0.00% | Add |
| Bank of America Corp history | 455.61K | $23.84M | 0.00% | Add |
| Northern Trust Corp history | 437.84K | $22.91M | 0.00% | Add |
| JPMorgan Chase & Co history | 325.18K | $17.02M | 0.00% | Add |
| Balyasny Asset Management history | 177.23K | $9.27M | 0.01% | New |
| Goldman Sachs Group history | 176.85K | $9.25M | 0.00% | Add |
| BNY Mellon history | 163.73K | $8.57M | 0.00% | Add |
| UBS Group AG history | 140.92K | $7.37M | 0.00% | Add |
| Millennium Management history | 120.36K | $6.30M | 0.00% | New |
| Citadel Advisors history | 102.93K | $5.39M | 0.00% | Reduce |
| Royce & Associates history | 102.30K | $5.35M | 0.05% | Reduce |
| Morgan Stanley history | 92.94K | $4.86M | 0.00% | Add |
| Wells Fargo & Co history | 59.07K | $3.09M | 0.00% | Add |
| Citigroup Inc history | 54.24K | $2.84M | 0.00% | Add |
| Deutsche Bank AG history | 38.93K | $2.04M | 0.00% | Add |
| Invesco Ltd history | 31.68K | $1.66M | 0.00% | Add |
| Manulife Financial history | 28.84K | $1.51M | 0.00% | Reduce |
| Legal & General Investment Management America history | 23.49K | $1.23M | 0.00% | Add |
| Prudential Financial history | 6.83K | $357.68K | 0.00% | Reduce |
| AQR Capital Management history | 6.67K | $348.83K | 0.00% | New |
| Principal Global Investors history | 3.92K | $205.13K | 0.00% | New |
| PNC Financial Services history | 207 | $10.83K | 0.00% | Add |
| T. Rowe Price Associates history | 54.33K | $2.84K | 0.00% | Reduce |
Q2 2025 — 34 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 15.76M | $448.32M | 0.03% | Add |
| Fidelity Management & Research (FMR) history | 15.76M | $448.32M | 0.03% | Add |
| Wellington Management Group history | 3.43M | $97.51M | 0.02% | Add |
| Janus Henderson Group history | 3.39M | $96.40M | 0.05% | Add |
| Viking Global Investors history | 1.62M | $45.99M | 0.13% | Hold |
| Vanguard Group history | 1.49M | $42.43M | 0.00% | Add |
| BlackRock Inc history | 1.24M | $35.20M | 0.00% | Reduce |
| BlackRock Inc history | 1.24M | $35.20M | 0.00% | Reduce |
| Geode Capital Management history | 466.95K | $13.29M | 0.00% | Add |
| Royce & Associates history | 331.28K | $9.42M | 0.10% | New |
| Citadel Advisors history | 266.22K | $7.57M | 0.00% | Add |
| Citadel Advisors history | 266.22K | $7.57M | 0.00% | Add |
| MFS Investment Management history | 253.71K | $7.22M | 0.00% | Reduce |
| Charles Schwab Investment Management history | 136.41K | $3.88M | 0.00% | Add |
| Northern Trust Corp history | 135.75K | $3.86M | 0.00% | Add |
| Morgan Stanley history | 63.81K | $1.82M | 0.00% | Add |
| Morgan Stanley history | 63.81K | $1.82M | 0.00% | Add |
| Manulife Financial history | 55.23K | $1.57M | 0.00% | Add |
| Bank of America Corp history | 50.68K | $1.44M | 0.00% | Add |
| UBS Group AG history | 46.27K | $1.32M | 0.00% | Reduce |
| BNY Mellon history | 39.52K | $1.12M | 0.00% | Add |
| Goldman Sachs Group history | 38.95K | $1.11M | 0.00% | Add |
| Goldman Sachs Group history | 38.95K | $1.11M | 0.00% | Add |
| Legal & General Investment Management America history | 23.25K | $661.35K | 0.00% | Add |
| Wells Fargo & Co history | 17.03K | $484.56K | 0.00% | Add |
| Prudential Financial history | 16.07K | $457.19K | 0.00% | Add |
| JPMorgan Chase & Co history | 15.43K | $438.84K | 0.00% | Add |
| JPMorgan Chase & Co history | 15.43K | $438.84K | 0.00% | Add |
| Invesco Ltd history | 11.97K | $340.66K | 0.00% | Add |
| Deutsche Bank AG history | 11.88K | $338.10K | 0.00% | Reduce |
| Deutsche Bank AG history | 11.88K | $338.10K | 0.00% | Reduce |
| Citigroup Inc history | 10.95K | $311.64K | 0.00% | Add |
| T. Rowe Price Associates history | 1.37M | $38.94K | 0.00% | Reduce |
| PNC Financial Services history | 190 | $5.41K | 0.00% | Add |
Q1 2025 — 34 funds
| Fund | Shares | Value | Portfolio Weight | Change |
|---|---|---|---|---|
| Fidelity Management & Research (FMR) history | 15.17M | $412.87M | 0.03% | New |
| Fidelity Management & Research (FMR) history | 15.17M | $412.87M | 0.03% | New |
| Janus Henderson Group history | 2.91M | $81.34M | 0.04% | New |
| Wellington Management Group history | 2.40M | $65.38M | 0.01% | New |
| BlackRock Inc history | 1.81M | $49.39M | 0.00% | New |
| BlackRock Inc history | 1.81M | $49.39M | 0.00% | New |
| Viking Global Investors history | 1.62M | $44.00M | 0.14% | New |
| Vanguard Group history | 1.47M | $39.93M | 0.00% | New |
| MFS Investment Management history | 481.68K | $13.11M | 0.00% | New |
| Geode Capital Management history | 434.65K | $11.83M | 0.00% | New |
| Charles Schwab Investment Management history | 125.28K | $3.41M | 0.00% | New |
| Northern Trust Corp history | 122.32K | $3.33M | 0.00% | New |
| UBS Group AG history | 105.28K | $2.87M | 0.00% | New |
| Millennium Management history | 73.70K | $2.01M | 0.00% | New |
| Citadel Advisors history | 48.49K | $1.32M | 0.00% | New |
| Citadel Advisors history | 48.49K | $1.32M | 0.00% | New |
| Morgan Stanley history | 45.47K | $1.24M | 0.00% | New |
| Morgan Stanley history | 45.47K | $1.24M | 0.00% | New |
| BNY Mellon history | 32.49K | $884.49K | 0.00% | New |
| Goldman Sachs Group history | 20.86K | $567.70K | 0.00% | New |
| Goldman Sachs Group history | 20.86K | $567.70K | 0.00% | New |
| Prudential Financial history | 14.90K | $405.58K | 0.00% | New |
| Deutsche Bank AG history | 13.74K | $374.00K | 0.00% | New |
| Deutsche Bank AG history | 13.74K | $374.00K | 0.00% | New |
| Citigroup Inc history | 10.85K | $295.37K | 0.00% | New |
| Bank of America Corp history | 10.61K | $288.69K | 0.00% | New |
| Invesco Ltd history | 9.97K | $271.49K | 0.00% | New |
| Wells Fargo & Co history | 8.19K | $223.01K | 0.00% | New |
| Manulife Financial history | 8.15K | $221.95K | 0.00% | New |
| JPMorgan Chase & Co history | 7.29K | $198.57K | 0.00% | New |
| JPMorgan Chase & Co history | 7.29K | $198.57K | 0.00% | New |
| T. Rowe Price Associates history | 1.56M | $42.40K | 0.01% | New |
| Legal & General Investment Management America history | 1.53K | $41.72K | 0.00% | New |
| PNC Financial Services history | 17 | $463 | 0.00% | New |
New Positions (latest)
No fund opened a new position this quarter.
Fully Exited (vs previous quarter)
No tracked fund fully exited this quarter.
Fund Position History — shares by quarter (top 20 funds)
| Fund | Q3 2025 | Q2 2025 | Q1 2025 |
|---|---|---|---|
| Fidelity Management & Research (FMR) | 13.89M | 15.76M | 15.17M |
| Vanguard Group | 5.82M | 1.49M | 1.47M |
| Janus Henderson Group | 5.35M | 3.39M | 2.91M |
| BlackRock Inc | 3.84M | 1.24M | 1.81M |
| Wellington Management Group | 3.66M | 3.43M | 2.40M |
| Geode Capital Management | 1.40M | 466.95K | 434.65K |
| Charles Schwab Investment Management | 511.46K | 136.41K | 125.28K |
| Bank of America Corp | 455.61K | 50.68K | 10.61K |
| Northern Trust Corp | 437.84K | 135.75K | 122.32K |
| JPMorgan Chase & Co | 325.18K | 15.43K | 7.29K |
| Balyasny Asset Management | 177.23K | — | — |
| Goldman Sachs Group | 176.85K | 38.95K | 20.86K |
| BNY Mellon | 163.73K | 39.52K | 32.49K |
| UBS Group AG | 140.92K | 46.27K | 105.28K |
| Millennium Management | 120.36K | — | 73.70K |
| Citadel Advisors | 102.93K | 266.22K | 48.49K |
| Royce & Associates | 102.30K | 331.28K | — |
| Morgan Stanley | 92.94K | 63.81K | 45.47K |
| Wells Fargo & Co | 59.07K | 17.03K | 8.19K |
| Citigroup Inc | 54.24K | 10.95K | 10.85K |