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Seagate Technology Holdings plc

STX
Exchange
Nasdaq
Industry
Computer Storage Devices
SEC CIK
0001137789

In the last 90 days, Seagate Technology Holdings plc insiders filed 0 open-market purchases and 32 sales; 1,973 institutions reported holding it in 13F filings for Q2 2026, worth $181.1B in total; 5 superinvestors hold it, including Lone Pine Capital and Tiger Global Management.

13F holders, Q3 2025

Institutional positions in Seagate Technology Holdings plc as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
1,126
+193 vs. Q2 2025
Shares held
194.2M
−3.26M (−1.6%) vs. Q2 2025
Total value
$45.8B
+$17.3B (+60.5%) vs. Q2 2025
New holders
276
370 more added
Sold out
83
323 more reduced

23 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting STX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 1,126 institutions
Q1 2021: 678 institutionsQ2 2021: 679 institutionsQ3 2021: 694 institutionsQ4 2021: 794 institutionsQ1 2022: 703 institutionsQ2 2022: 714 institutionsQ3 2022: 666 institutionsQ4 2022: 643 institutionsQ1 2023: 673 institutionsQ2 2023: 660 institutionsQ3 2023: 657 institutionsQ4 2023: 730 institutionsQ1 2024: 768 institutionsQ2 2024: 799 institutionsQ3 2024: 821 institutionsQ4 2024: 806 institutionsQ1 2025: 801 institutionsQ2 2025: 956 institutionsQ3 2025: 1,126 institutionsQ4 2025: 1,280 institutionsQ1 2026: 1,472 institutionsQ2 2026: 1,973 institutions
Value heldQ3 2025: $45.8B
Q1 2021: $15.5BQ2 2021: $16.2BQ3 2021: $15.2BQ4 2021: $20.4BQ1 2022: $15.4BQ2 2022: $12.5BQ3 2022: $9.29BQ4 2022: $9.40BQ1 2023: $12.1BQ2 2023: $11.0BQ3 2023: $12.3BQ4 2023: $16.2BQ1 2024: $17.2BQ2 2024: $19.3BQ3 2024: $20.4BQ4 2024: $16.6BQ1 2025: $16.9BQ2 2025: $28.8BQ3 2025: $45.8BQ4 2025: $53.5BQ1 2026: $74.2BQ2 2026: $181.1B
Institutions holding STX and their total value by quarter
QuarterHoldersValue
Q2 20261,973$181.1B
Q1 20261,472$74.2B
Q4 20251,280$53.5B
Q3 20251,126$45.8B
Q2 2025956$28.8B
Q1 2025801$16.9B
Q4 2024806$16.6B
Q3 2024821$20.4B
Q2 2024799$19.3B
Q1 2024768$17.2B
Q4 2023730$16.2B
Q3 2023657$12.3B
Q2 2023660$11.0B
Q1 2023673$12.1B
Q4 2022643$9.40B
Q3 2022666$9.29B
Q2 2022714$12.5B
Q1 2022703$15.4B
Q4 2021794$20.4B
Q3 2021694$15.2B
Q2 2021679$16.2B
Q1 2021678$15.5B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Seagate Technology Holdings plc; share changes are against Q2 2025.

Institutions holding STX in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main989,756$233.6M0.21%+989,756New
Royal Bank of Canada1,034,425$244.2M0.04%−418,055−28.8%Reduced
Bank of New York Mellon Corp1,045,828$246.9M0.04%+26,636+2.6%Added
Charles Schwab Investment Management Inc1,370,679$323.6M0.05%−15,845−1.1%Reduced
Boston Partners1,372,103$323.9M0.33%+31,602+2.4%Added
UBS Asset Management Americas Inc1,455,563$343.6M0.07%−338,706−18.9%Reduced
Polar Capital Holdings Plc1,479,369$349.2M1.68%+384,850+35.2%Added
Legal & General Group Plc1,535,675$362.5M0.08%+87,056+6.0%Added
Egerton Capital (UK) LLP1,592,983$376.0M3.97%−458,451−22.3%Reduced
Invesco Ltd.1,811,021$427.5M0.07%−358,450−16.5%Reduced
Northern Trust Corp1,920,329$453.3M0.06%+284,758+17.4%Added
FMR LLC1,981,226$467.7M0.02%−4,432,273−69.1%Reduced
D. E. Shaw & Co., Inc.2,005,386$473.4M0.38%+316,971+18.8%Added
Arrowstreet Capital, Limited Partnership2,949,512$696.3M0.44%+2,697,957+1,072.5%Added
Goldman Sachs Group Inc3,726,026$879.6M0.13%+1,975,527+112.9%Added
Geode Capital Management, LLC4,662,379$1.10B0.07%+95,198+2.1%Added
WCM Investment Management, LLC5,182,949$1.19B2.47%+5,182,949New
Morgan Stanley5,059,365$1.19B0.07%−429,113−7.8%Reduced
Capital Research Global Investors6,189,644$1.46B0.27%−1,103,776−15.1%Reduced
Bank of America Corp7,589,910$1.79B0.13%+985,335+14.9%Added
Franklin Resources Inc8,067,216$1.90B0.48%−219,158−2.6%Reduced
State Street Corp9,276,278$2.20B0.08%+274,913+3.1%Added
JPMorgan Chase & Co13,932,796$3.29B0.21%−4,757,175−25.5%Reduced
BlackRock, Inc.14,397,544$3.40B0.06%+496,557+3.6%Added
Sanders Capital, LLC17,541,266$4.14B5.09%−541,040−3.0%Reduced
Vanguard Group Inc28,140,287$6.64B0.10%+442,749+1.6%Added
Sachem Head Capital Management LP0$00.00%−1,522,500−100.0%Sold out
Mizuho Markets Americas LLC0$00.00%−315,178−100.0%Sold out
Delta Global Management LP0$00.00%−308,961−100.0%Sold out
Twinbeech Capital LP0$00.00%−229,137−100.0%Sold out
Wolf Hill Capital Management, LP0$00.00%−200,000−100.0%Sold out
Junto Capital Management LP0$00.00%−191,387−100.0%Sold out
Rheos Capital Works Inc.0$00.00%−164,500−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−131,131−100.0%Sold out
Maytus Capital Management, LLC0$00.00%−67,141−100.0%Sold out
Skandinaviska Enskilda Banken AB (publ)0$00.00%−65,786−100.0%Sold out
Arvin Capital Management LP0$00.00%−60,300−100.0%Sold out
Greenland Capital Management LP0$00.00%−59,996−100.0%Sold out
Cubist Systematic Strategies, LLC0$00.00%−59,977−100.0%Sold out
Mirae Asset Securities (USA) Inc.0$00.00%−50,130−100.0%Sold out
iA Global Asset Management Inc.0$00.00%−49,320−100.0%Sold out
Oribel Capital Management, LP0$00.00%−47,400−100.0%Sold out
Readystate Asset Management LP0$00.00%−40,578−100.0%Sold out
IMC-Chicago, LLC0$00.00%−40,433−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−37,740−100.0%Sold out
Simplex Trading, LLC0$00.00%−37,369−100.0%Sold out
Symmetry Investments LP0$00.00%−37,200−100.0%Sold out
Soros Capital Management LLC0$00.00%−36,700−100.0%Sold out
Sona Asset Management (US) LLC0$00.00%−34,400−100.0%Sold out
Channing Capital Management, LLC0$00.00%−31,469−100.0%Sold out
Nissay Asset Management Corp0$00.00%−26,639−100.0%Sold out
Sciencast Management LP0$00.00%−23,597−100.0%Sold out
Fisher Funds Management LTD0$00.00%−18,225−100.0%Sold out
AXA S.A.0$00.00%−17,281−100.0%Sold out
Point72 (DIFC) Ltd0$00.00%−16,936−100.0%Sold out
Achmea Investment Management B.V.0$00.00%−16,329−100.0%Sold out
Fox Run Management, L.L.C.0$00.00%−14,396−100.0%Sold out
Empirical Asset Management, LLC0$00.00%−10,298−100.0%Sold out
Bridgefront Capital, LLC0$00.00%−7,867−100.0%Sold out
Greenwood Capital Associates LLC0$00.00%−6,397−100.0%Sold out
Scientech Research LLC0$00.00%−6,177−100.0%Sold out
Machina Capital S.A.S.0$00.00%−5,583−100.0%Sold out
Wealthcare Advisory Partners LLC0$00.00%−5,545−100.0%Sold out
Ethos Financial Group, LLC0$00.00%−5,470−100.0%Sold out
V-Square Quantitative Management LLC0$00.00%−5,417−100.0%Sold out
Tounjian Advisory Partners, LLC0$00.00%−9,028−100.0%Sold out
Carmel Capital Partners, LLC0$00.00%−3,992−100.0%Sold out
National Wealth Management Group, LLC0$00.00%−3,932−100.0%Sold out
Corton Capital Inc.0$00.00%−3,830−100.0%Sold out
Almanack Investment Partners, LLC.0$00.00%−3,750−100.0%Sold out
Teza Capital Management LLC0$00.00%−3,668−100.0%Sold out
ISAM Funds (UK) Ltd0$00.00%−3,596−100.0%Sold out
Centiva Capital, LP0$00.00%−3,453−100.0%Sold out
Belpointe Asset Management LLC0$00.00%−3,363−100.0%Sold out
Asahi Life Asset Management Co., Ltd.0$00.00%−3,090−100.0%Sold out
Cinctive Capital Management LP0$00.00%−2,976−100.0%Sold out
Two Sigma Securities, LLC0$00.00%−2,758−100.0%Sold out
Landscape Capital Management, L.L.C.0$00.00%−2,500−100.0%Sold out
Whittier Trust Co0$00.00%−2,145−100.0%Sold out
Quarry Hill Advisors, LLC0$00.00%−2,024−100.0%Sold out
Bravias Capital Group, LLC0$00.00%−1,850−100.0%Sold out
Prossimo Advisors, LLC0$00.00%−1,812−100.0%Sold out
PharVision Advisers, LLC0$00.00%−1,633−100.0%Sold out
RIA Advisory Group LLC0$00.00%−1,617−100.0%Sold out
ICONIQ Capital, LLC0$00.00%−1,542−100.0%Sold out
Whittier Trust Co of Nevada Inc0$00.00%−1,165−100.0%Sold out
Skopos Labs, Inc.0$00.00%−1,153−100.0%Sold out
Viking Fund Management LLC0$00.00%−1,000−100.0%Sold out
Putney Financial Group LLC0$00.00%−750−100.0%Sold out
Quarry LP0$00.00%−539−100.0%Sold out
Olistico Wealth, LLC0$00.00%−470−100.0%Sold out
GeoWealth Management, LLC0$00.00%−456−100.0%Sold out
Evelyn Partners Investment Management LLP0$00.00%−385−100.0%Sold out
Garde Capital, Inc.0$00.00%−116−100.0%Sold out
Total Investment Management Inc0$00.00%−104−100.0%Sold out
Chung Wu Investment Group, LLC0$00.00%−100−100.0%Sold out
Twin Peaks Wealth Advisors, LLC0$00.00%−89−100.0%Sold out
Ridgewood Investments LLC0$00.00%−85−100.0%Sold out
Sierra Ocean, LLC0$00.00%−53−100.0%Sold out
Whipplewood Advisors, LLC0$00.00%−50−100.0%Sold out