# AMPHENOL CORP (APH)

> Institutional ownership reported to the SEC as of Q3 2026, from Form 13F filings. Source: https://holderbook.com/stocks/APH/

- Reporting holders: 90
- Reported value: $820.7M
- Held through calls: 0.0%
- Held through puts: 0.0%

A 13F reports long US equity positions only. Shorts, bonds, foreign listings and cash are not visible here, and positions are disclosed up to 45 days after the quarter ends.

## Largest holders

| Manager | Value | Shares | Share of their book | Quarters held |
|---|---|---|---|---|
| [Fenimore Asset Management Inc](https://holderbook.com/funds/884566-fenimore-asset-management-inc/) | $238.9M | 2,834,126 | 5.2% | 22 |
| [CONGRESS ASSET MANAGEMENT CO](https://holderbook.com/funds/897378-congress-asset-management-co/) | $181.0M | 2,147,483 | 1.2% | 32 |
| [AVITY INVESTMENT MANAGEMENT INC.](https://holderbook.com/funds/926834-avity-investment-management-inc/) | $64.3M | 762,835 | 4.0% | 32 |
| [Gradient Investments LLC](https://holderbook.com/funds/1542265-gradient-investments-llc/) | $36.7M | 435,146 | 0.5% | 8 |
| [NORTH POINT PORTFOLIO MANAGERS CORP/OH](https://holderbook.com/funds/1105344-north-point-portfolio-managers-corp-oh/) | $36.4M | 430,656 | 6.1% | 32 |
| [EASTERN BANK](https://holderbook.com/funds/1126395-eastern-bank/) | $34.9M | 413,997 | 0.5% | 9 |
| [ZEVENBERGEN CAPITAL INVESTMENTS LLC](https://holderbook.com/funds/1276918-zevenbergen-capital-investments-llc/) | $29.7M | 352,195 | 0.7% | 32 |
| [DUDLEY & SHANLEY, INC.](https://holderbook.com/funds/883511-dudley-shanley-inc/) | $25.9M | 307,828 | 4.1% | 16 |
| [YHB Investment Advisors, Inc.](https://holderbook.com/funds/1469219-yhb-investment-advisors-inc/) | $23.3M | 276,033 | 1.5% | 32 |
| [CONFLUENCE INVESTMENT MANAGEMENT LLC](https://holderbook.com/funds/1442056-confluence-investment-management-llc/) | $18.0M | 213,527 | 0.3% | 17 |
| [Bath Savings Trust Co](https://holderbook.com/funds/1384943-bath-savings-trust-co/) | $11.8M | 140,241 | 1.2% | 9 |
| [Farther Finance Advisors, LLC](https://holderbook.com/funds/1992825-farther-finance-advisors-llc/) | $10.6M | 125,383 | 0.1% | 16 |
| [GAMMA Investing LLC](https://holderbook.com/funds/2010235-gamma-investing-llc/) | $10.2M | 121,334 | 0.3% | 12 |
| [HALL LAURIE J TRUSTEE](https://holderbook.com/funds/1388382-hall-laurie-j-trustee/) | $9.6M | 113,767 | 3.1% | 25 |
| [BRIGHT ROCK CAPITAL MANAGEMENT, LLC](https://holderbook.com/funds/1509973-bright-rock-capital-management-llc/) | $7.2M | 86,000 | 1.4% | 32 |
| [Monument Capital Management](https://holderbook.com/funds/1729428-monument-capital-management/) | $5.9M | 70,512 | 1.2% | 6 |
| [Cox Capital Mgt LLC](https://holderbook.com/funds/1748728-cox-capital-mgt-llc/) | $5.7M | 67,878 | 3.2% | 7 |
| [Central Pacific Bank - Trust Division](https://holderbook.com/funds/2020066-central-pacific-bank-trust-division/) | $5.5M | 65,502 | 0.6% | 11 |
| [Stokes Capital Advisors, LLC](https://holderbook.com/funds/1734460-stokes-capital-advisors-llc/) | $5.3M | 63,275 | 1.2% | 2 |
| [Wedmont Private Capital](https://holderbook.com/funds/1904274-wedmont-private-capital/) | $4.7M | 54,791 | 0.1% | 20 |
| [Strong Retirement Solutions LLC](https://holderbook.com/funds/2111795-strong-retirement-solutions-llc/) | $4.2M | 49,778 | 2.4% | 4 |
| [CYPRESS ASSET MANAGEMENT INC/TX](https://holderbook.com/funds/1030618-cypress-asset-management-inc-tx/) | $4.1M | 49,198 | 0.8% | 7 |
| [Wealth Enhancement Trust Services, Inc.](https://holderbook.com/funds/2067696-wealth-enhancement-trust-services-inc/) | $3.9M | 45,855 | 0.4% | 4 |
| [Bell Asset Management Ltd](https://holderbook.com/funds/1681004-bell-asset-management-ltd/) | $3.5M | 41,826 | 1.3% | 2 |
| [VALLEY WEALTH MANAGERS, INC.](https://holderbook.com/funds/924166-valley-wealth-managers-inc/) | $3.5M | 41,696 | 0.2% | 7 |

## Quarter by quarter

| Quarter | Holders | Reported value |
|---|---|---|
| Q3 2026 | 90 | $820.7M |
| Q2 2026 | 2,345 | $221.0B |
| Q1 2026 | 2,131 | $148.3B |
| Q4 2025 | 2,064 | $236.2B |
| Q3 2025 | 1,832 | $144.5B |
| Q2 2025 | 1,655 | $117.0B |
| Q1 2025 | 1,434 | $76.3B |
| Q4 2024 | 1,408 | $80.7B |
| Q3 2024 | 1,297 | $75.9B |
| Q2 2024 | 1,300 | $79.7B |
| Q1 2024 | 1,164 | $71.2B |
| Q4 2023 | 1,089 | $60.8B |