Security record · archived quarter
STAA
STAAR Surgical Company · Healthcare · Medical - Instruments & Supplies
73Tracked holders
+2Δ holders
25.59MShares held
$590.84MReported value
+2New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +2.8% ·
share flow +10.1% ·
net new positions +2.7%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 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 · Q4 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 2 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 3 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 5 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 7.36M | +1.4% | $169.95M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 16 | The Vanguard Group ✦ (passive) | 4.23M | -1.0% | $97.59M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 17 | The Vanguard Group ✦ (passive) | 4.23M | -1.0% | $97.59M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 18 | The Vanguard Group ✦ (passive) | 4.23M | -1.0% | $97.59M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 19 | The Vanguard Group ✦ (passive) | 4.23M | -1.0% | $97.59M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 20 | The Vanguard Group ✦ (passive) | 4.23M | -1.0% | $97.59M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 21 | Goldman Sachs Group ✦ | 2.08M | +112.7% | $47.95M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 22 | Goldman Sachs Group ✦ | 2.08M | +112.7% | $47.95M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | State Street Global Advisors ✦ (passive) | 1.94M | +1.5% | $44.80M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 24 | Balyasny Asset Management L.P. | 1.54M | — | $35.59M | 0.1% | n/c | 1 | SEC ↗ |
| 25 | Geode Capital Management ✦ (passive) | 1.21M | +3.1% | $27.96M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 26 | Geode Capital Management ✦ (passive) | 1.21M | +3.1% | $27.96M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 27 | Morgan Stanley ✦ | 928.91K | +87.1% | $21.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 28 | Morgan Stanley ✦ | 928.91K | +87.1% | $21.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 29 | Morgan Stanley ✦ | 928.91K | +87.1% | $21.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 30 | Morgan Stanley ✦ | 928.91K | +87.1% | $21.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 31 | Morgan Stanley ✦ | 928.91K | +87.1% | $21.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | Morgan Stanley ✦ | 928.91K | +87.1% | $21.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 33 | Morgan Stanley ✦ | 928.91K | +87.1% | $21.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 34 | Dimensional Fund Advisors Lp | 590.20K | — | $13.63M | 0.0% | n/c | 1 | SEC ↗ |
| 35 | Dimensional Fund Advisors Lp | 590.20K | — | $13.63M | 0.0% | n/c | 1 | SEC ↗ |
| 36 | Dimensional Fund Advisors Lp | 590.20K | — | $13.63M | 0.0% | n/c | 1 | SEC ↗ |
| 37 | Dimensional Fund Advisors Lp | 590.20K | — | $13.63M | 0.0% | n/c | 1 | SEC ↗ |
| 38 | Charles Schwab Investment… | 480.60K | — | $11.10M | 0.0% | n/c | 1 | SEC ↗ |
| 39 | Northern Trust Corp | 476.70K | — | $11.01M | 0.0% | n/c | 1 | SEC ↗ |
| 40 | Northern Trust Corp | 476.70K | — | $11.01M | 0.0% | n/c | 1 | SEC ↗ |
| 41 | Northern Trust Corp | 476.70K | — | $11.01M | 0.0% | n/c | 1 | SEC ↗ |
| 42 | Northern Trust Corp | 476.70K | — | $11.01M | 0.0% | n/c | 1 | SEC ↗ |
| 43 | Northern Trust Corp | 476.70K | — | $11.01M | 0.0% | n/c | 1 | SEC ↗ |
| 44 | Northern Trust Corp | 476.70K | — | $11.01M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Northern Trust Corp | 476.70K | — | $11.01M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Millennium Management ✦ | 451.29K | +285.7% | $10.42M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 47 | Jane Street Group, Llc | 328.81K | — | $7.59M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | Jane Street Group, Llc | 328.81K | — | $7.59M | 0.0% | n/c | 1 | SEC ↗ |
| 49 | Jane Street Group, Llc | 328.81K | — | $7.59M | 0.0% | n/c | 1 | SEC ↗ |
| 50 | UBS Group AG | 327.85K | — | $7.57M | 0.0% | n/c | 1 | SEC ↗ |
| 51 | UBS Group AG | 327.85K | — | $7.57M | 0.0% | n/c | 1 | SEC ↗ |
| 52 | UBS Group AG | 327.85K | — | $7.57M | 0.0% | n/c | 1 | SEC ↗ |
| 53 | UBS Group AG | 327.85K | — | $7.57M | 0.0% | n/c | 1 | SEC ↗ |
| 54 | Marshall Wace ✦ | 300.58K | +136.2% | $6.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 55 | Marshall Wace ✦ | 300.58K | +136.2% | $6.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 56 | Marshall Wace ✦ | 300.58K | +136.2% | $6.94M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 57 | Bank of New York Mellon Corp | 271.19K | — | $6.26M | 0.0% | n/c | 1 | SEC ↗ |
| 58 | Bank of New York Mellon Corp | 271.19K | — | $6.26M | 0.0% | n/c | 1 | SEC ↗ |
| 59 | Bank of New York Mellon Corp | 271.19K | — | $6.26M | 0.0% | n/c | 1 | SEC ↗ |
| 60 | Bank of New York Mellon Corp | 271.19K | — | $6.26M | 0.0% | n/c | 1 | SEC ↗ |
| 61 | Bank of New York Mellon Corp | 271.19K | — | $6.26M | 0.0% | n/c | 1 | SEC ↗ |
| 62 | Bank of New York Mellon Corp | 271.19K | — | $6.26M | 0.0% | n/c | 1 | SEC ↗ |
| 63 | Bank of New York Mellon Corp | 271.19K | — | $6.26M | 0.0% | n/c | 1 | SEC ↗ |
| 64 | Principal Financial Group Inc | 263.29K | — | $6.08M | 0.0% | n/c | 1 | SEC ↗ |
| 65 | Principal Financial Group Inc | 263.29K | — | $6.08M | 0.0% | n/c | 1 | SEC ↗ |
| 66 | Janus Henderson Group Plc | 212.69K | — | $4.91M | 0.0% | n/c | 1 | SEC ↗ |
| 67 | Citadel Advisors ✦ | 205.12K | +43.0% | $4.74M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 68 | Citadel Advisors ✦ | 205.12K | +43.0% | $4.74M | 0.0% | ▲ Add | 7 | SEC ↗ |
| 69 | Invesco Ltd. | 161.55K | — | $3.73M | 0.0% | n/c | 1 | SEC ↗ |
| 70 | Invesco Ltd. | 161.55K | — | $3.73M | 0.0% | n/c | 1 | SEC ↗ |
| 71 | Invesco Ltd. | 161.55K | — | $3.73M | 0.0% | n/c | 1 | SEC ↗ |
| 72 | Invesco Ltd. | 161.55K | — | $3.73M | 0.0% | n/c | 1 | SEC ↗ |
| 73 | Invesco Ltd. | 161.55K | — | $3.73M | 0.0% | n/c | 1 | SEC ↗ |
| 74 | Nuveen, LLC | 161.00K | — | $3.72M | 0.0% | n/c | 1 | SEC ↗ |
| 75 | Nuveen, LLC | 161.00K | — | $3.72M | 0.0% | n/c | 1 | SEC ↗ |
| 76 | Adage Capital Partners ✦ | 159.76K | New | $3.69M | 0.0% | New | 1 | SEC ↗ |
| 77 | LMR Partners LLP | 158.61K | — | $3.66M | 0.0% | n/c | 1 | SEC ↗ |
| 78 | Rhumbline Advisers | 138.65K | — | $3.20M | 0.0% | n/c | 1 | SEC ↗ |
| 79 | Legal & General Group Plc | 114.07K | — | $2.63M | 0.0% | n/c | 1 | SEC ↗ |
| 80 | Legal & General Group Plc | 114.07K | — | $2.63M | 0.0% | n/c | 1 | SEC ↗ |
| 81 | Legal & General Group Plc | 114.07K | — | $2.63M | 0.0% | n/c | 1 | SEC ↗ |
| 82 | Two Sigma Investments ✦ | 113.86K | 0.0% | $2.63M | 0.0% | Held | 4 | SEC ↗ |
| 83 | Stifel Financial Corp | 102.83K | — | $2.37M | 0.0% | n/c | 1 | SEC ↗ |
| 84 | Stifel Financial Corp | 102.83K | — | $2.37M | 0.0% | n/c | 1 | SEC ↗ |
| 85 | Bank Of America Corp /De/ | 100.77K | — | $2.33M | 0.0% | n/c | 1 | SEC ↗ |
| 86 | Bank Of America Corp /De/ | 100.77K | — | $2.33M | 0.0% | n/c | 1 | SEC ↗ |
| 87 | Bank Of America Corp /De/ | 100.77K | — | $2.33M | 0.0% | n/c | 1 | SEC ↗ |
| 88 | Bank Of America Corp /De/ | 100.77K | — | $2.33M | 0.0% | n/c | 1 | SEC ↗ |
| 89 | Bank Of America Corp /De/ | 100.77K | — | $2.33M | 0.0% | n/c | 1 | SEC ↗ |
| 90 | UBS AM, a distinct business unit of… | 97.53K | — | $2.25M | 0.0% | n/c | 1 | SEC ↗ |
| 91 | UBS AM, a distinct business unit of… | 97.53K | — | $2.25M | 0.0% | n/c | 1 | SEC ↗ |
| 92 | UBS AM, a distinct business unit of… | 97.53K | — | $2.25M | 0.0% | n/c | 1 | SEC ↗ |
| 93 | UBS AM, a distinct business unit of… | 97.53K | — | $2.25M | 0.0% | n/c | 1 | SEC ↗ |
| 94 | UBS AM, a distinct business unit of… | 97.53K | — | $2.25M | 0.0% | n/c | 1 | SEC ↗ |
| 95 | UBS AM, a distinct business unit of… | 97.53K | — | $2.25M | 0.0% | n/c | 1 | SEC ↗ |
| 96 | Ameriprise Financial Inc | 87.19K | — | $2.01M | 0.0% | n/c | 1 | SEC ↗ |
| 97 | Barclays Plc | 77.84K | — | $1.80M | 0.0% | n/c | 1 | SEC ↗ |
| 98 | Barclays Plc | 77.84K | — | $1.80M | 0.0% | n/c | 1 | SEC ↗ |
| 99 | Swiss National Bank | 66.00K | — | $1.52M | 0.0% | n/c | 1 | SEC ↗ |
| 100 | Alliancebernstein L.P. | 58.67K | — | $1.35M | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Adage Capital Partners | $3.69M | 0.0% |
Exited
| No tracked exits this quarter. |
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: Q4 2025 ·
Methodology ·
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