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Security record · archived quarter

MTSR

Metsera, Inc. · Healthcare · Biotechnology

70.50 -0.4% mkt cap $7.43B quote delayed (FMP) · as of Oct 13 14:08 UTC — separate from filing data below

Q3 2025 Q2 2025 Q1 2025
9Tracked holders
-2Δ holders
26.20MShares held
$745.32MReported value
+0New positions
−2Exits
Strongly Falling Conviction score 35/100 How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth -18.2% · share flow +4.8% · net new positions -20.0% — formula
Concentrated accumulation — rising shares among fewer holders

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q3 2025 13 +1 32.25M $1.69B +2 −1
Q2 2025 9 -2 26.20M $745.32M — −2
Q1 2025 8 +8 6.51M $177.18M +8 —
Holder count
Who holds it · Q2 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 Fidelity (FMR) ✦ 15.76M — $448.32M 0.0% n/c 1 SEC ↗ ×3
2 Wellington Management ✦ 3.43M +42.7% $97.51M 0.0% ▲ Add 2 SEC ↗ ×5
3 Viking Global Investors ✦ 1.62M 0.0% $45.99M 0.1% Held 2 SEC ↗
4 The Vanguard Group ✦ (passive) 1.49M — $42.43M 0.0% n/c 1 SEC ↗ ×5
5 T. Rowe Price ✦ 1.37M -12.1% $38.94M 0.0% ▼ Trim 2 SEC ↗ ×2
6 BlackRock ✦ (passive) 1.24M — $35.20M 0.0% n/c 1 SEC ↗ ×6
7 State Street Global Advisors ✦ (passive) 600.20K +141.4% $17.08M 0.0% ▲ Add 2 SEC ↗
8 Geode Capital Management ✦ (passive) 466.95K +7.4% $13.29M 0.0% ▲ Add 2 SEC ↗ ×2
9 Citadel Advisors ✦ 230.82K +376.0% $6.57M 0.0% ▲ Add 2 SEC ↗ ×2

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

No new tracked buyers this quarter.

Exited

Norges Bank $3.47M was 0.0%
Millennium Management $2.01M was 0.0%
Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

COF9shared holders CMG9shared holders AIG9shared holders BAC9shared holders PM9shared holders
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q2 2025 · Methodology · Get this via the API