Security record · archived quarter
STAA
STAAR Surgical Company · Healthcare · Medical - Instruments & Supplies
16Tracked holders
+2Δ holders
16.83MShares held
$452.11MReported value
+3New positions
−1Exits
Momentum inputs (comparable managers):
holder breadth +14.3% ·
share flow -5.5% ·
net new positions +12.5%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 75 | +6 | 22.78M | $653.08M | +13 | −6 |
| Q1 2026 | 71 | -2 | 21.75M | $407.04M | +10 | −12 |
| Q4 2025 | 73 | +2 | 25.59M | $590.84M | +2 | — |
| Q3 2025 | 16 | +2 | 16.83M | $452.11M | +3 | −1 |
| Q2 2025 | 11 | 0 | 16.25M | $272.61M | — | — |
| Q1 2025 | 8 | -2 | 3.84M | $67.78M | +1 | −3 |
| Q4 2024 | 10 | -2 | 5.93M | $144.12M | +1 | −3 |
| Q3 2024 | 11 | +1 | 5.51M | $204.79M | +2 | −1 |
| Q2 2024 | 10 | — | 5.61M | $267.04M | — | — |
Who holds it · Q3 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 7.26M | -1.5% | $195.05M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 4.27M | -2.8% | $114.71M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 4.27M | -2.8% | $114.71M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 4.27M | -2.8% | $114.71M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 4.27M | -2.8% | $114.71M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 4.27M | -2.8% | $114.71M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 21 | State Street Global Advisors ✦ (passive) | 1.91M | -4.6% | $51.35M | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 22 | Geode Capital Management ✦ (passive) | 1.17M | -1.6% | $31.55M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 23 | Geode Capital Management ✦ (passive) | 1.17M | -1.6% | $31.55M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 24 | Goldman Sachs Group ✦ | 976.26K | — | $26.23M | 0.0% | n/c | 1 | SEC ↗ |
| 25 | Goldman Sachs Group ✦ | 976.26K | — | $26.23M | 0.0% | n/c | 1 | SEC ↗ |
| 26 | Morgan Stanley ✦ | 496.59K | — | $13.34M | 0.0% | n/c | 1 | SEC ↗ |
| 27 | Morgan Stanley ✦ | 496.59K | — | $13.34M | 0.0% | n/c | 1 | SEC ↗ |
| 28 | Morgan Stanley ✦ | 496.59K | — | $13.34M | 0.0% | n/c | 1 | SEC ↗ |
| 29 | Morgan Stanley ✦ | 496.59K | — | $13.34M | 0.0% | n/c | 1 | SEC ↗ |
| 30 | Morgan Stanley ✦ | 496.59K | — | $13.34M | 0.0% | n/c | 1 | SEC ↗ |
| 31 | Morgan Stanley ✦ | 496.59K | — | $13.34M | 0.0% | n/c | 1 | SEC ↗ |
| 32 | Morgan Stanley ✦ | 496.59K | — | $13.34M | 0.0% | n/c | 1 | SEC ↗ |
| 33 | Citadel Advisors ✦ | 143.42K | -74.2% | $3.85M | 0.0% | ▼ Trim | 6 | SEC ↗ |
| 34 | Marshall Wace ✦ | 127.27K | New | $3.42M | 0.0% | New | 1 | SEC ↗ |
| 35 | Marshall Wace ✦ | 127.27K | New | $3.42M | 0.0% | New | 1 | SEC ↗ |
| 36 | Marshall Wace ✦ | 127.27K | New | $3.42M | 0.0% | New | 1 | SEC ↗ |
| 37 | Millennium Management ✦ | 117.02K | +6.8% | $3.14M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 38 | Two Sigma Investments ✦ | 113.86K | -72.0% | $3.06M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 39 | JPMorgan Chase ✦ | 81.44K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | JPMorgan Chase ✦ | 81.44K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | JPMorgan Chase ✦ | 81.44K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | JPMorgan Chase ✦ | 81.44K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | JPMorgan Chase ✦ | 81.44K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | JPMorgan Chase ✦ | 81.44K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | JPMorgan Chase ✦ | 81.44K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | JPMorgan Chase ✦ | 81.44K | — | $2.19M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Fidelity (FMR) ✦ | 61.56K | +303.2% | $1.65M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 48 | Fidelity (FMR) ✦ | 61.56K | +303.2% | $1.65M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 49 | Fidelity (FMR) ✦ | 61.56K | +303.2% | $1.65M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 50 | Fidelity (FMR) ✦ | 61.56K | +303.2% | $1.65M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 51 | T. Rowe Price ✦ | 51.30K | +15.2% | $1.38M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 52 | D. E. Shaw & Co. ✦ | 17.93K | -85.6% | $481,833 | 0.0% | ▼ Trim | 4 | SEC ↗ |
| 53 | AQR Capital Management ✦ | 15.12K | New | $406,221 | 0.0% | New | 1 | SEC ↗ |
| 54 | AQR Capital Management ✦ | 15.12K | New | $406,221 | 0.0% | New | 1 | SEC ↗ |
| 55 | AQR Capital Management ✦ | 15.12K | New | $406,221 | 0.0% | New | 1 | SEC ↗ |
| 56 | AQR Capital Management ✦ | 15.12K | New | $406,221 | 0.0% | New | 1 | SEC ↗ |
| 57 | GAMCO Investors ✦ | 11.00K | New | $295,570 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Marshall Wace | $3.42M | 0.0% |
| Marshall Wace | $3.42M | 0.0% |
| Marshall Wace | $3.42M | 0.0% |
| AQR Capital Management | $406,221 | 0.0% |
| AQR Capital Management | $406,221 | 0.0% |
| AQR Capital Management | $406,221 | 0.0% |
| AQR Capital Management | $406,221 | 0.0% |
| GAMCO Investors | $295,570 | 0.0% |
Exited
| Renaissance Technologies | $535,282 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 186 holders, 53.87M shares, $998.22M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Aug 14
SC 13G/A — Madison Avenue Partners, LP
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: Q3 2025 ·
Methodology ·
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