APH
Amphenol Corporation · Technology · Hardware, Equipment & Parts
Momentum inputs (comparable managers):
holder breadth +18.8% ·
share flow +2.1% ·
net new positions +15.8%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2025
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 177 | -1 | 922.28M | $161.88B | +5 | −5 |
| Q1 2026 | 180 | 0 | 922.10M | $116.20B | +5 | −6 |
| Q4 2025 | 179 | +1 | 958.01M | $129.47B | +2 | — |
| Q3 2025 | 23 | +2 | 552.69M | $68.39B | +2 | −1 |
| Q2 2025 | 19 | +3 | 519.80M | $51.33B | +3 | — |
| Q1 2025 | 13 | -2 | 165.29M | $10.84B | — | −2 |
| Q4 2024 | 15 | -1 | 179.86M | $12.50B | — | −1 |
| Q3 2024 | 15 | -4 | 110.77M | $7.21B | — | −4 |
| Q2 2024 | 19 | — | 127.19M | $8.56B | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | The Vanguard Group ✦ (passive) | 140.53M | — | $13.88B | 0.2% | n/c | 1 | SEC ↗ ×6 |
| 2 | Fidelity (FMR) ✦ | 108.66M | — | $10.73B | 0.6% | n/c | 1 | SEC ↗ ×6 |
| 3 | BlackRock ✦ (passive) | 94.56M | — | $9.34B | 0.2% | n/c | 1 | SEC ↗ ×21 |
| 4 | State Street Global Advisors ✦ (passive) | 55.35M | +0.1% | $5.47B | 0.2% | ▲ Add | 3 | SEC ↗ |
| 5 | T. Rowe Price ✦ | 41.67M | -1.0% | $4.12B | 0.5% | ▼ Trim | 5 | SEC ↗ ×2 |
| 6 | Geode Capital Management ✦ (passive) | 28.51M | +8.4% | $2.80B | 0.2% | ▲ Add | 5 | SEC ↗ ×2 |
| 7 | Norges Bank ✦ (passive) | 21.31M | +7.0% | $2.10B | 0.3% | ▲ Add | 5 | SEC ↗ |
| 8 | Wellington Management ✦ | 10.36M | -14.8% | $1.02B | 0.2% | ▼ Trim | 5 | SEC ↗ ×4 |
| 9 | D. E. Shaw & Co. ✦ | 4.47M | +306.4% | $441.30M | 0.5% | ▲ Add | 5 | SEC ↗ ×2 |
| 10 | AQR Capital Management ✦ | 3.09M | -5.5% | $302.40M | 0.2% | ▼ Trim | 5 | SEC ↗ ×6 |
| 11 | Millennium Management ✦ | 2.42M | +569.9% | $238.67M | 0.2% | ▲ Add | 5 | SEC ↗ |
| 12 | Citadel Advisors ✦ | 2.25M | +92.1% | $222.68M | 0.2% | ▲ Add | 5 | SEC ↗ ×2 |
| 13 | Two Sigma Investments ✦ | 1.90M | +3838.7% | $187.23M | 0.3% | ▲ Add | 5 | SEC ↗ |
| 14 | Point72 Asset Management ✦ | 1.29M | New | $127.78M | 0.3% | New | 1 | SEC ↗ |
| 15 | Marshall Wace ✦ | 1.20M | New | $118.50M | 0.1% | New | 1 | SEC ↗ |
| 16 | Adage Capital Partners ✦ | 1.10M | -19.8% | $108.67M | 0.2% | ▼ Trim | 5 | SEC ↗ |
| 17 | Arrowstreet Capital ✦ | 916.92K | -53.6% | $90.55M | 0.1% | ▼ Trim | 5 | SEC ↗ |
| 18 | Gotham Asset Management ✦ | 195.86K | +8.9% | $19.34M | 0.1% | ▲ Add | 5 | SEC ↗ |
| 19 | Fisher Asset Management ✦ | 4.18K | New | $412,566 | 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
| Point72 Asset Management | $127.78M | 0.3% |
| Marshall Wace | $118.50M | 0.1% |
| Fisher Asset Management | $412,566 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 2,099 holders, 1.10B shares, $133.08B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.