Security record · archived quarter
WAT
Waters Corporation · Healthcare · Medical - Diagnostics & Research
18Tracked holders
+1Δ holders
20.33MShares held
$7.10BReported value
+1New positions
−0Exits
Momentum inputs (comparable managers):
holder breadth +5.9% ·
share flow -0.5% ·
net new positions +5.6%
— formula
Ownership fragmentation — more holders, smaller aggregate stake
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 163 | +2 | 71.52M | $27.38B | +7 | −4 |
| Q1 2026 | 163 | +5 | 66.62M | $20.68B | +11 | −7 |
| Q4 2025 | 157 | -1 | 42.72M | $16.21B | +1 | −1 |
| Q3 2025 | 21 | +1 | 20.77M | $6.22B | +2 | −2 |
| Q2 2025 | 18 | +1 | 20.33M | $7.10B | +1 | — |
| Q1 2025 | 14 | -1 | 6.37M | $2.34B | — | −1 |
| Q4 2024 | 15 | +1 | 6.13M | $2.27B | +1 | — |
| Q3 2024 | 13 | -2 | 2.92M | $1.05B | +1 | −3 |
| Q2 2024 | 15 | — | 2.95M | $853.36M | — | — |
Who holds it · Q2 2025
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 7.41M | — | $2.59B | 0.0% | n/c | 1 | SEC ↗ |
| 2 | The Vanguard Group ✦ (passive) | 7.41M | — | $2.59B | 0.0% | n/c | 1 | SEC ↗ |
| 3 | The Vanguard Group ✦ (passive) | 7.41M | — | $2.59B | 0.0% | n/c | 1 | SEC ↗ |
| 4 | The Vanguard Group ✦ (passive) | 7.41M | — | $2.59B | 0.0% | n/c | 1 | SEC ↗ |
| 5 | The Vanguard Group ✦ (passive) | 7.41M | — | $2.59B | 0.0% | n/c | 1 | SEC ↗ |
| 6 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 7 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 8 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 9 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 10 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 11 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 12 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 13 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 14 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 15 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 16 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 17 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 18 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 19 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 20 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 21 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 22 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 23 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 24 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 25 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 26 | BlackRock ✦ (passive) | 6.56M | — | $2.29B | 0.0% | n/c | 1 | SEC ↗ |
| 27 | State Street Global Advisors ✦ (passive) | 2.68M | +1.4% | $934.10M | 0.0% | ▲ Add | 3 | SEC ↗ |
| 28 | Geode Capital Management ✦ (passive) | 1.55M | +2.8% | $539.61M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 29 | Geode Capital Management ✦ (passive) | 1.55M | +2.8% | $539.61M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 30 | Norges Bank ✦ (passive) | 763.19K | -6.7% | $266.38M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 31 | Wellington Management ✦ | 458.85K | -19.9% | $160.16M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 32 | Wellington Management ✦ | 458.85K | -19.9% | $160.16M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 33 | Wellington Management ✦ | 458.85K | -19.9% | $160.16M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 34 | Wellington Management ✦ | 458.85K | -19.9% | $160.16M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 35 | Marshall Wace ✦ | 288.01K | -17.8% | $100.53M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 36 | Marshall Wace ✦ | 288.01K | -17.8% | $100.53M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 37 | Marshall Wace ✦ | 288.01K | -17.8% | $100.53M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 38 | AQR Capital Management ✦ | 209.04K | +106.7% | $72.96M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 39 | AQR Capital Management ✦ | 209.04K | +106.7% | $72.96M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 40 | AQR Capital Management ✦ | 209.04K | +106.7% | $72.96M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 41 | AQR Capital Management ✦ | 209.04K | +106.7% | $72.96M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 42 | AQR Capital Management ✦ | 209.04K | +106.7% | $72.96M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 43 | AQR Capital Management ✦ | 209.04K | +106.7% | $72.96M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 44 | Fidelity (FMR) ✦ | 105.32K | — | $36.76M | 0.0% | n/c | 1 | SEC ↗ |
| 45 | Fidelity (FMR) ✦ | 105.32K | — | $36.76M | 0.0% | n/c | 1 | SEC ↗ |
| 46 | Fidelity (FMR) ✦ | 105.32K | — | $36.76M | 0.0% | n/c | 1 | SEC ↗ |
| 47 | Fidelity (FMR) ✦ | 105.32K | — | $36.76M | 0.0% | n/c | 1 | SEC ↗ |
| 48 | T. Rowe Price ✦ | 86.01K | +0.1% | $30.02M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 49 | T. Rowe Price ✦ | 86.01K | +0.1% | $30.02M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 50 | Millennium Management ✦ | 51.04K | +545.8% | $17.81M | 0.0% | ▲ Add | 5 | SEC ↗ |
| 51 | PRIMECAP Management ✦ | 49.05K | -28.8% | $17.12M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 52 | Gotham Asset Management ✦ | 39.37K | -15.0% | $13.74M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 53 | Two Sigma Investments ✦ | 39.31K | -57.9% | $13.72M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 54 | Adage Capital Partners ✦ | 29.46K | -45.6% | $10.28M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 55 | Arrowstreet Capital ✦ | 8.92K | New | $3.11M | 0.0% | New | 1 | SEC ↗ |
| 56 | Citadel Advisors ✦ | 3.45K | -77.3% | $1.20M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 57 | Citadel Advisors ✦ | 3.45K | -77.3% | $1.20M | 0.0% | ▼ Trim | 5 | SEC ↗ |
| 58 | D. E. Shaw & Co. ✦ | 1.14K | -67.8% | $398,953 | 0.0% | ▼ Trim | 5 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Arrowstreet Capital | $3.11M | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,162 holders, 92.59M shares, $26.09B 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.
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 ·
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