Public ownership evidence

KLA Corporation Common Stock (KLAC) Ownership Disclosures

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

As of 2026-09-16T20:06:06.000Z

Recent Form 4 activity

2026-09-162026-09-15WALLACE RICHARD PS72,019Not reported
2026-08-152026-08-13Lorig BrianS59,586Not reported
2026-08-142026-08-12Higgins Bren D.S31,500Not reported
2026-08-132026-08-11Khan Ahmad A.S33,180Not reported
2026-08-132026-08-11WALLACE RICHARD PS87,568Not reported
2026-08-122026-08-10Kirloskar Virendra AS529Not reported
2026-08-122026-08-10Wilkinson Mary BethS1,661Not reported
2026-08-112026-08-07Wilkinson Mary BethS21,831Not reported
2026-08-112026-08-07Kirloskar Virendra AS2,405Not reported
2026-08-082026-08-06Khan Ahmad A.A62,475.7Not reported
2026-08-082026-08-06Khan Ahmad A.A87,420Not reported
2026-08-082026-08-05Khan Ahmad A.A24,410.85Not reported
2026-08-082026-08-06Kirloskar Virendra AA9,540Not reported
2026-08-082026-08-05Kirloskar Virendra AA1,549.15Not reported
2026-08-082026-08-06Lorig BrianA24,987.3Not reported
2026-08-082026-08-06Lorig BrianA39,735Not reported
2026-08-082026-08-05Lorig BrianA15,960.94Not reported
2026-08-082026-08-06Higgins Bren D.A62,475.7Not reported
2026-08-082026-08-06Higgins Bren D.A87,420Not reported
2026-08-082026-08-05Higgins Bren D.A24,410.85Not reported
2026-08-082026-08-06Wilkinson Mary BethA24,987.3Not reported
2026-08-082026-08-06Wilkinson Mary BethA25,440Not reported
2026-08-082026-08-05Wilkinson Mary BethA5,069.95Not reported
2026-08-082026-08-06WALLACE RICHARD PA40,841.24Not reported
2026-08-082026-08-06WALLACE RICHARD PA93,721Not reported
2026-08-082026-08-06WALLACE RICHARD PA352,875Not reported
2026-08-062026-08-05Wilkinson Mary BethS13,802Not reported
2026-08-062026-08-05Kirloskar Virendra AS4,504Not reported
2026-08-052026-08-04Wilkinson Mary BethS4,295Not reported
2026-08-052026-08-04Kirloskar Virendra AS1,565Not 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.

Alternative Investment Advisors, LLC.2026-06-302026-09-01665$200,704None
Cornerstone Financial Management LLC2026-06-302026-08-29300$90,513None
Cornerstone Financial Management LLC2026-03-312026-08-2920$29,448None
Cornerstone Financial Management LLC2025-12-312026-08-2919$23,087None
B. Riley Wealth Advisors, Inc.2025-03-312026-08-291,720$1,168,930None
OPTIMIZE FINANCIAL INC.2026-06-302026-08-2820,768$6,265,913None
Advisors Asset Management, Inc.2021-12-312026-08-287,930$3,410,772None
Advisors Asset Management, Inc.2022-12-312026-08-286,316$2,381,321None
Advisors Asset Management, Inc.2020-06-302026-08-287,422$1,443,431None
Advisors Asset Management, Inc.2022-06-302026-08-283,599$1,148,000None
Advisors Asset Management, Inc.2021-09-302026-08-288,069$2,699,000None
Corient Private Wealth LP2026-06-302026-08-28301,023$90,821,656None
Corient Private Wealth LP2026-06-302026-08-2825,326$7,641,291None
Redwood Investment Management, LLC2025-03-312026-08-282,007$1,364,000None
Formuepleje A/S2026-06-302026-08-2830,062$9,070,006None
Formuepleje A/S2026-03-312026-08-282,453$3,611,822None
Wellington Grp LLC2026-06-302026-08-27740$223,265None
Reflection Asset Management2026-03-312026-08-271,771$2,607,638None
HORAN Wealth, LLC2026-06-302026-08-271,124$339,062None
Principia Wealth Advisory, LLC2026-06-302026-08-2789$26,852None
Principia Wealth Advisory, LLC2026-03-312026-08-2774$108,958None
Brown Financial Advisors2026-06-302026-08-272,320$699,967None
Advisors Asset Management, Inc.2024-03-312026-08-279,528$6,655,975None
Advisors Asset Management, Inc.2025-03-312026-08-275,654$3,843,589None
Advisors Asset Management, Inc.2022-09-302026-08-275,351$1,619,000None
Advisors Asset Management, Inc.2020-12-312026-08-2710,999$2,848,000None
Advisors Asset Management, Inc.2022-03-312026-08-272,748$1,005,933None
Advisors Asset Management, Inc.2023-06-302026-08-277,598$3,685,182None
Advisors Asset Management, Inc.2023-09-302026-08-278,837$4,053,178None
Advisors Asset Management, Inc.2023-03-312026-08-277,245$2,891,987None
Advisors Asset Management, Inc.2021-03-312026-08-2711,626$3,841,230None
Advisors Asset Management, Inc.2021-06-302026-08-279,153$2,967,000None
Advisors Asset Management, Inc.2020-09-302026-08-277,289$1,412,171None
Advisors Asset Management, Inc.2025-09-302026-08-273,869$4,173,103None
Advisors Asset Management, Inc.2023-12-312026-08-2710,477$6,090,280None
Dakota Wealth Management2025-09-302026-08-27873,092$941,717,032None
Dakota Wealth Management2025-12-312026-08-27867,326$1,053,870,477None
Dakota Wealth Management2026-03-312026-08-2762,599$92,171,394None
Advus Financial Partners, LLC2026-06-302026-08-264,950$1,493,465None
Advus Financial Partners, LLC2026-03-312026-08-26495$728,843None
Advus Financial Partners, LLC2025-12-312026-08-26537$652,498None
Advus Financial Partners, LLC2025-09-302026-08-26644$694,618None
Advus Financial Partners, LLC2025-06-302026-08-26650$582,231None
Advus Financial Partners, LLC2025-03-312026-08-26752$511,210None
Advus Financial Partners, LLC2024-12-312026-08-26784$494,014None
Advus Financial Partners, LLC2024-09-302026-08-26979$758,147None
Advus Financial Partners, LLC2024-06-302026-08-261,064$877,279None
Advus Financial Partners, LLC2024-03-312026-08-261,189$830,600None
Advus Financial Partners, LLC2023-12-312026-08-261,189$691,166None
Advus Financial Partners, LLC2023-09-302026-08-261,174$538,467None

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

Recent Congressional disclosures

Ro Khanna2026-10-082026-09-23purchase$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.

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.