Public ownership evidence

Amphenol Corporation (APH) Ownership Disclosures

Read APH insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-08-06T03:59:59.999Z

Recent Form 4 activity

2026-08-062026-08-05Silverman David MS120,000Not reported
2026-08-062026-08-04Lampo Craig AS193,200Not reported
2026-08-062026-08-03D'AMICO LANCE ES10,000Not reported
2026-08-062026-08-03D'AMICO LANCE ES40,000Not reported
2026-08-062026-08-03D'AMICO LANCE ES50,000Not reported
2026-08-042026-07-31NORWITT RICHARD ADAMS186,104Not reported
2026-08-042026-07-31NORWITT RICHARD ADAMS500,000Not reported

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

Cornerstone Financial Management LLC2026-06-302026-08-29304$53,601None
Cornerstone Financial Management LLC2026-03-312026-08-29239$30,198None
Cornerstone Financial Management LLC2025-12-312026-08-29226$30,542None
B. Riley Wealth Advisors, Inc.2025-03-312026-08-299,334$612,188None
OPTIMIZE FINANCIAL INC.2026-06-302026-08-2821,177$3,733,929None
Advisors Asset Management, Inc.2021-12-312026-08-2840,631$3,553,587None
Advisors Asset Management, Inc.2022-12-312026-08-2818,406$1,401,433None
Advisors Asset Management, Inc.2020-06-302026-08-2811,313$1,083,899None
Advisors Asset Management, Inc.2022-06-302026-08-2831,737$2,043,000None
Advisors Asset Management, Inc.2021-09-302026-08-2846,265$3,388,000None
Corient Private Wealth LP2026-06-302026-08-28756,838$133,560,236None
Corient Private Wealth LP2026-06-302026-08-2833,015$5,821,144None
Formuepleje A/S2026-06-302026-08-28238,067$41,975,973None
Formuepleje A/S2026-03-312026-08-288,645$1,092,296None
Formuepleje A/S2025-12-312026-08-2827,908$3,771,487None
Formuepleje A/S2025-09-302026-08-2828,182$3,487,523None
Formuepleje A/S2025-06-302026-08-2841,369$2,713,393None
Formuepleje A/S2025-03-312026-08-2841,369$2,713,393None
Reflection Asset Management2026-03-312026-08-2718,616$2,357,216None
Principia Wealth Advisory, LLC2026-06-302026-08-27144$25,390None
Principia Wealth Advisory, LLC2026-03-312026-08-27832$105,123None
Brown Financial Advisors2026-06-302026-08-2710,386$1,831,260None
Advisors Asset Management, Inc.2024-03-312026-08-2730,505$3,518,752None
Advisors Asset Management, Inc.2025-03-312026-08-27179,197$11,753,531None
Advisors Asset Management, Inc.2022-09-302026-08-2720,852$1,396,000None
Advisors Asset Management, Inc.2020-12-312026-08-2716,423$2,148,000None
Advisors Asset Management, Inc.2022-03-312026-08-2734,521$2,601,157None
Advisors Asset Management, Inc.2023-06-302026-08-2722,390$1,902,031None
Advisors Asset Management, Inc.2023-09-302026-08-2721,331$1,791,591None
Advisors Asset Management, Inc.2023-03-312026-08-2714,589$1,192,213None
Advisors Asset Management, Inc.2021-03-312026-08-2737,829$2,495,579None
Advisors Asset Management, Inc.2021-06-302026-08-2747,138$3,225,000None
Advisors Asset Management, Inc.2020-09-302026-08-2713,562$1,468,358None
Advisors Asset Management, Inc.2025-09-302026-08-27176,910$21,892,613None
Advisors Asset Management, Inc.2023-12-312026-08-2720,975$2,079,252None
Dakota Wealth Management2025-09-302026-08-2723,445$2,901,594None
Dakota Wealth Management2025-12-312026-08-2731,375$4,240,581None
Dakota Wealth Management2026-03-312026-08-2753,006$6,698,077None
Advus Financial Partners, LLC2026-06-302026-08-261,241$218,813None
Groupe la Francaise2026-06-302026-08-26427,689$75,446,183None
Advisors Asset Management, Inc.2019-12-312026-08-2616,974$1,837,096None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-26409,534$51,744,621None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-26447,589$78,918,892None
Advisors Asset Management, Inc.2025-06-302026-08-25175,617$17,342,179None
CYBER HORNET ETFs LLC2026-06-302026-08-253,353$591,201None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-251,880,421$331,555,831None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25331,555,831$1,880,421,000None
Advisors Asset Management, Inc.2024-09-302026-08-22106,899$6,965,539None
Advisors Asset Management, Inc.2024-06-302026-08-2287,403$5,888,340None
Advisors Asset Management, Inc.2024-12-312026-08-22127,170$8,831,957None

90-day public filing window, up to 50 source positions.

Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗Cornerstone Financial Management LLC ↗B. Riley Wealth Advisors, Inc. ↗OPTIMIZE FINANCIAL INC. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗Advisors Asset Management, Inc. ↗

Recent Congressional disclosures

Gilbert Ray Cisneros, Jr.2026-09-112026-08-18purchase$1,001 - $15,000

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.