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 2026-10-10T12:08:28.848Z

Separate the three disclosure sources

Step 1 of 3

Recent Form 4 activity

Seagate Technology Holdings PLC Ordinary Shares (Ireland): source evidence dated 2026-10-10T12:08:28.848Z.

Available
2026-10-02
Trade date
2026-10-01
Reporting owners
MOSLEY WILLIAM D
Code
S
Shares
579
Reported value
Not reported
What you should see

The displayed owner or issuer and source fields identify the receipt to verify; keep reporting and availability dates separate.

Step 2 of 3

Is this an insider transaction, 13F holding, or Congressional event?

Each source has different dates and units. Raw ticker-matched receipts, including amendments, are not deduplicated current ownership totals.

SEC 0001137789-26-000262
What you should see

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Step 3 of 3

Read STX fundamentals

Follow the source receipt or manager/member profile. Avoid combining transaction value and 13F position value into an ownership percentage.

Read STX fundamentals
What you should see

Keep reporting dates and units beside the answer, and inspect its original citations.

Recent Form 4 activity

See the complete recent form 4 activity
2026-10-022026-10-01MOSLEY WILLIAM DS579Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS759Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS640Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS822Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS840Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS1,320Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS1,665Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS855Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS962Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS440Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS280Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS40Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS80Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS720Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS640Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS360Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS601Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS480Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS480Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS696Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS384Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS440Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS517Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS640Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS480Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS1,080Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS640Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS760Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS800Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS930Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS630Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS840Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS920Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS360Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS400Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS480Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS960Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS904Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS696Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS1,146Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS840Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS307Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS1,027Not reported
2026-10-022026-10-01MOSLEY WILLIAM DS560Not reported
2026-09-222026-09-21Morris John ChristopherS1,000Not reported
2026-09-222026-09-21Morris John ChristopherS520Not reported
2026-09-222026-09-21Morris John ChristopherS200Not reported
2026-09-222026-09-21Morris John ChristopherS80Not reported
2026-09-222026-09-21Morris John ChristopherS160Not reported
2026-09-222026-09-21Morris John ChristopherS40Not 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 LLC2026-06-302026-08-2965$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

Kevin Hern2026-09-262026-09-15sale$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.

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