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Chesley Taft & Associates LLC

Position in APH — Amphenol Corp /De/

CIK 1164632 CHICAGO, IL

Position in APH

as of Jun 30, 2026 · filed Jul 8, 2026
Position Value
$35,627,571
+$35,627,571 QoQ
Shares Held
404,124
-2.0% QoQ
Ownership
0.016%
of shares outstanding
% of Portfolio
1.89%
of 13F equity value
Holder Rank
#75
of 1,001 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 90% Shared 0% None 10%

Common Shares in APH Over Time

Shares Held

Position Value (USD)

Position in Electronic Components

Technology · as of Jun 30, 2026

Chesley Taft & Associates LLC holds $40,026,127 across 5 Electronic Components names. APH ranks #1 (89.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 APH
Amphenol Corp /De/
This page
404,124 $35,627,571

All Filings in APH

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $35,627,571 202,062
2026-03-31 206,274
2025-12-31 206,278
2025-09-30 190,935
2025-06-30 197,468
2025-03-31 201,423
2024-12-31 202,325
2024-09-30 207,971
2024-06-30 210,728
2024-03-31 107,302
2023-12-31 113,941
2023-09-30 115,198
2023-06-30 116,215
2023-03-31 116,634
2022-12-31 120,413
2022-09-30 122,626
2022-06-30 122,581
2022-03-31 124,216
2021-12-31 127,396
2021-09-30 127,941
2021-06-30 128,435
2021-03-31 128,065
2020-12-31 65,030
2020-09-30 65,080
2020-06-30 68,690
2020-03-31 81,575