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Amphenol Corp

APH
Exchange
NYSE
Industry
Electronic Connectors
SEC CIK
0000820313

In the last 90 days, Amphenol Corp insiders filed 0 open-market purchases and 1 sale; 2,349 institutions reported holding it in 13F filings for Q2 2026, worth $205.1B in total; superinvestors Weitz Investment Management and Maverick Capital hold it.

Holders of 5% or more of APH

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Amphenol Corp, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of APH
HolderLatest formStakeChangeFirst filedLatest filingFiling
Vanguard Capital Management LLC13G7.47%91.9M sharesNewApr 29, 20261 filingApr 29, 2026SEC
FMR LLC13G/A5.70%70.5M shares−1.40 ppfrom 7.10%Feb 8, 20217 filingsAug 6, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

18 Schedule 13D and 13G filings on Amphenol Corp, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on APH
Filed (ET)FilerFormStakeChangeEvent dateFiling
Aug 6, 202610:14 AM ETFMR LLCand 1 other13G/A5.70%70.5M shares−1.40 ppfrom 7.10%Jun 30, 2026SEC
Apr 29, 20264:34 PM ETVanguard Capital Management LLC13G7.47%91.9M sharesNewMar 31, 2026SEC
Mar 26, 20263:42 PM ETVanguard Group Inc13G/A0.00%0 shares−10.25 ppfrom 10.25%Below 5%Mar 13, 2026SEC
Feb 5, 20261:16 PM ETFMR LLCand 1 other13G/A7.10%86.4M shares−1.10 ppfrom 8.20%Dec 31, 2025SEC
Nov 5, 202511:26 AM ETFMR LLCand 1 other13G/A8.20%99.8M shares–Sep 30, 2025SEC
Oct 30, 20252:26 PM ETVanguard Group Inc13G/A10.25%125.2M shares–Sep 30, 2025SEC
Feb 13, 2024Vanguard Group Inc13G/AOld format–––SEC
Feb 9, 2024FMR LLC13G/AOld format–––SEC
Jan 25, 20244:59 PM ETBlackRock Inc.13G/AOld format–––SEC
Feb 9, 2023Vanguard Group Inc13G/AOld format–––SEC
Feb 9, 2023FMR LLC13G/AOld format–––SEC
Jan 31, 20231:58 PM ETBlackRock Inc.13G/AOld format–––SEC
Feb 9, 2022Vanguard Group Inc13G/AOld format–––SEC
Feb 9, 2022FMR LLC13G/AOld format–––SEC
Feb 1, 20225:14 PM ETBlackRock Inc.13G/AOld format–––SEC
Feb 10, 2021Vanguard Group Inc13G/AOld format–––SEC
Feb 8, 2021FMR LLC13G/AOld format–––SEC
Jan 28, 20215:56 PM ETBlackRock Inc.13G/AOld format–––SEC

Form 144: proposed insider sales

78 notices from officers, directors and other affiliates planning to sell Amphenol Corp shares, newest first.

Form 144 notices for APH
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Nov 2, 20264:02 PM ETRichard Adam NorwittOfficer799.6K$65.9MNov 2, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 5, 20264:13 PM ETDavid SilvermanOfficer120.0K$20.9MAug 5, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 4, 20264:12 PM ETCraig LampoOfficer193.2K$32.3MAug 4, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 4, 20264:11 PM ETLampo Family TrustOfficer85.9K$14.5MAug 4, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 3, 20264:17 PM ETLance E Damico 2024 Irrv TrustOfficer50.0K$8.09MAug 3, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Aug 3, 20264:12 PM ETLance D AmicoOfficer50.0K$8.10MAug 3, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Jul 31, 20264:24 PM ETNorwitt Family TrustOfficer186.1K$30.2MJul 31, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Jul 31, 20264:22 PM ETRichard Adam NorwittOfficer500.0K$80.8MJul 31, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 5, 20264:06 PM ETRichard Adam NorwittOfficer17.5K$2.51MMay 5, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 4, 20264:06 PM ETRichard Adam NorwittOfficer52.2K$7.41MMay 4, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
May 1, 20264:15 PM ETRichard Adam NorwittOfficer61.1K$8.79MMay 1, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Feb 18, 20264:06 PM ETLance D AmicoOfficer50.0K$7.49MFeb 18, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Feb 18, 20264:04 PM ETCraig LampoOfficer100.0K$15.0MFeb 18, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Feb 12, 20264:06 PM ETNorwitt Family TrustOfficer93.1K$13.7MFeb 12, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Feb 12, 20264:03 PM ETRichard Adam NorwittOfficer515.3K$75.9MFeb 12, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Dec 2, 20254:12 PM ETPeter John StraubOfficer132.0K$18.7MDec 2, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Dec 2, 20254:11 PM ETWilliam DohertyOfficer80.0K$11.4MDec 2, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 12, 20259:10 AM ETCraig LampoOfficer258.0K$36.9MNov 11, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 12, 20259:07 AM ETLampo Family TrustOfficer40.1K$5.75MNov 11, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 5, 20254:17 PM ETMichael IvasOfficer120.0K$16.8MNov 5, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Nov 3, 20254:17 PM ETDavid SilvermanOfficer120.0K$16.9MNov 3, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Oct 31, 20255:25 PM ETMichael IvasOfficer120.0K$17.0MOct 31, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Oct 29, 20254:11 PM ETLance D AmicoOfficer120.0K$16.8MOct 29, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Oct 29, 20254:04 PM ETWilliam DohertyOfficer80.0K$11.3MOct 29, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC
Oct 24, 20254:10 PM ETLuc WalterOfficer365.1K$49.2MOct 24, 2025Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC

Showing the latest 25. See the APH notices from the last 12 months