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BLAIR WILLIAM & CO/IL

Position in APH — Amphenol Corp /De/

CIK 902367 CHICAGO, IL

Position in APH

as of Jun 30, 2026 · filed Aug 11, 2026
Position Value
$883,154,789
+$246,270,178 QoQ
Shares Held
10,017,636
-0.6% QoQ
Ownership
0.203%
of shares outstanding
% of Portfolio
2.28%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 87% Shared 0% None 13%

Common Shares in APH Over Time

Shares Held

Position Value (USD)

Position in Electronic Components

Technology · as of Jun 30, 2026

BLAIR WILLIAM & CO/IL holds $976,737,435 across 12 Electronic Components names. APH ranks #1 (90.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 APH
Amphenol Corp /De/
This page
10,017,636 $883,154,789

All Filings in APH

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $883,154,789 2,504,409
2026-03-31 $636,884,611 2,520,319
2025-12-31 $717,293,659 2,653,891
2025-09-30 $680,999,715 2,751,514
2025-06-30 $586,860,980 2,971,448
2025-03-31 $397,127,773 3,027,350
2024-12-31 $426,449,946 3,070,194
2024-09-30 $403,039,360 3,092,690
2024-06-30 $422,070,894 3,132,484
2024-03-31 $354,441,481 1,536,374
2023-12-31 $303,759,102 1,532,125
2023-09-30 $259,490,464 1,544,770
2023-06-30 $262,394,579 1,544,406
2023-03-31 $250,684,108 1,533,799
2022-12-31 $233,205,551 1,531,426
2022-09-30 $203,128,784 1,516,792
2022-06-30 $196,238,866 1,524,067
2022-03-31 $230,850,849 1,531,857
2021-12-31 $269,072,439 1,538,260
2021-09-30 $223,383,574 1,525,219
2021-06-30 $210,590,333 1,539,178
2021-03-31 $206,317,348 1,563,721
2020-12-31 $209,333,071 800,384
2020-09-30 $167,669,334 774,314
2020-06-30 $152,386,893 795,259
2020-03-31 $115,458,536 792,114