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Public ownership evidence

Seagate Technology Holdings PLC Ordinary Shares (Ireland) (STX) Ownership Disclosures

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

As of 2026-11-07T14:03:26.246Z

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2026-11-032026-11-02MOSLEY WILLIAM DS80Not reported

First displayed source row from Recent Form 4 activity. The full bounded history and coverage notes remain below.

The displayed observation date is 2026-11-02 and its public availability date is 2026-11-03. Subtracting those calendar dates gives 1 day of disclosure lag. Historical public research can use the record from the availability date, rather than backdating knowledge to the observation date. The calendar-day difference does not assert an intraday publication time.

This row is code S: a sale. A purchase-following rule excludes this sale even if the reported dollar amount is large.

Open the linked original receipts to verify the row, then inspect a second record before drawing a pattern. This public filing observation supplies source evidence, not a completed copy-trading return.

SEC 0001137789-26-000318 ↗SEC 0001137789-26-000318 ↗SEC 0001137789-26-000318 ↗

Recent Form 4 activity

Inspect all 50 displayed rows: Recent Form 4 activity

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2026-11-032026-11-02MOSLEY WILLIAM DS80Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS320Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS640Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS240Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS1,080Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS720Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS1,160Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS760Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS80Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS160Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS120Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS160Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS240Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS960Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS678Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS1,480Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS1,639Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS1,400Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS280Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS800Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS600Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS760Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS800Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS280Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS920Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS520Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS560Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS680Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS1,177Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS891Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS720Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS2,372Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS1,082Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS1,600Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS600Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS560Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS400Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS1,200Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS560Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS481Not reported
2026-11-032026-11-02MOSLEY WILLIAM DS240Not reported
2026-11-032026-10-30Morris John ChristopherS40Not reported
2026-11-032026-10-30Morris John ChristopherS40Not reported
2026-11-032026-10-30Morris John ChristopherS80Not reported
2026-11-032026-10-30Morris John ChristopherS160Not reported
2026-11-032026-10-30Morris John ChristopherS118Not reported
2026-11-032026-10-30Morris John ChristopherS82Not reported
2026-11-032026-10-30Morris John ChristopherS40Not reported
2026-11-032026-10-30Morris John ChristopherS6Not reported
2026-11-032026-10-30Morris John ChristopherS34Not reported

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

Recent institutional filing receipts

Inspect all 50 displayed rows: 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.

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Cornerstone Financial Management LLC2026-06-302026-08-2965$62,725None
Cornerstone Financial Management LLC2026-03-312026-08-2931$12,145None
Cornerstone Financial Management LLC2025-12-312026-08-2924$6,609None
B. Riley Wealth Advisors, Inc.2025-03-312026-08-2915,340$1,303,116None
Deeter Investments LLP2025-12-312026-08-293,954$1,088,892None
OPTIMIZE FINANCIAL INC.2026-06-302026-08-287,916$7,638,940None
Advisors Asset Management, Inc.2022-12-312026-08-281,260$66,289None
Corient Private Wealth LP2026-06-302026-08-2822,156$21,381,574None
Corient Private Wealth LP2026-06-302026-08-283,274$3,159,859None
TUCKER ASSET MANAGEMENT LLC2026-06-302026-08-28820$791,317None
Principia Wealth Advisory, LLC2026-06-302026-08-2716$15,440None
Principia Wealth Advisory, LLC2026-03-312026-08-2712$4,701None
Advisors Asset Management, Inc.2025-03-312026-08-27916$77,814None
Advisors Asset Management, Inc.2025-09-302026-08-271,198$282,800None
WILLIAM JOHN SEMPOLINSKI2026-03-312026-08-27675$264,438None
Advus Financial Partners, LLC2026-06-302026-08-262,059$1,986,935None
Advus Financial Partners, LLC2026-03-312026-08-261,700$665,992None
Advus Financial Partners, LLC2025-12-312026-08-261,546$425,753None
Advus Financial Partners, LLC2025-09-302026-08-261,494$352,674None
Advus Financial Partners, LLC2025-06-302026-08-261,462$211,010None
Advus Financial Partners, LLC2021-09-302026-08-261,902$214,888None
Groupe la Francaise2026-06-302026-08-264,797$4,629,105None
Groupe la Francaise2026-06-302026-08-2659$42,269None
Financial Insights, Inc.2026-06-302026-08-26732$706,380None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-03-312026-08-26148,900$58,333,064None
VIRGINIA RETIREMENT SYSTEMS ET Al2026-06-302026-08-26122,179$117,902,735None
Advisors Asset Management, Inc.2025-06-302026-08-251,068$154,144None
CYBER HORNET ETFs LLC2026-06-302026-08-25609$587,685None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25328,233$316,744,845None
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM2026-06-302026-08-25316,744,845$328,233,000None
Advisors Asset Management, Inc.2024-09-302026-08-22403$44,141None
Advisors Asset Management, Inc.2024-06-302026-08-22145$14,974None
Advisors Asset Management, Inc.2024-12-312026-08-22679$58,604None
Advisors Asset Management, Inc.2025-12-312026-08-221,551$427,130None
Assenagon Asset Management S.A.2026-06-302026-08-227,321$7,064,765None
Rehmann Capital Advisory Group2026-06-302026-08-21967$926,821None
CLIFFORD SWAN INVESTMENT COUNSEL LLC2026-06-302026-08-21625$603,125None
Bullock Wealth Management Group2026-06-302026-08-20544$497,876None
Custos Family Office, LLC2026-03-312026-08-20774$303,106None
Kingsview Wealth Management, LLC2026-06-302026-08-202,213$2,135,590None
SPX Gestao de Recursos Ltda2026-06-302026-08-205,200$5,018,000None
Archer Investment Corp2026-06-302026-08-20580$559,700None
CANTOR FITZGERALD, L. P.2026-06-302026-08-2015,034$14,507,810None
CANTOR FITZGERALD, L. P.2026-06-302026-08-2010,000$9,650,000Put
MERCER GLOBAL ADVISORS INC /ADV2026-06-302026-08-2051,232$49,439,046None
Beacon Pointe Advisors, LLC2026-06-302026-08-199,721$9,380,837None
Copia Wealth Management2026-06-302026-08-192$1,930None
Twin Lakes Capital Management, LLC2026-06-302026-08-1948,618$46,916,523None
Ratan Capital Management LP2026-06-302026-08-193,750$3,618,750None
Liontrust Investment Partners LLP2026-06-302026-08-1929,040$28,023,600None

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. ↗Deeter Investments LLP ↗OPTIMIZE FINANCIAL INC. ↗Advisors Asset Management, Inc. ↗Corient Private Wealth LP ↗Corient Private Wealth LP ↗TUCKER ASSET MANAGEMENT LLC ↗

Recent Congressional disclosures

Show the table · 2 rows, 5 columns

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Kevin Hern2026-10-282026-10-23sale$15,001 - $50,000
Lisa C. McClain2026-10-122026-09-30sale$15,001 - $50,000

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.