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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
Patton Fund Management, Inc.17,564$4.15M0.75%+17,564New
Private Advisor Group, LLC17,636$4.16M0.02%+807+4.8%Added
Great Lakes Retirement, Inc.17,736$4.19M0.46%−120−0.7%Reduced
Empowered Funds, LLC18,198$4.30M0.04%+12,740+233.4%Added
Donoghue Forlines LLC18,956$4.47M1.38%−14,058−42.6%Reduced
Xponance, Inc.19,195$4.53M0.04%−1,728−8.3%Reduced
ASR Vermogensbeheer N.V.19,401$4.58M0.06%−100−0.5%Reduced
Change Path, LLC19,412$4.58M0.11%+1,023+5.6%Added
Balyasny Asset Management LLC19,704$4.65M0.01%+13,796+233.5%Added
Ethic Inc.20,167$4.76M0.08%−103−0.5%Reduced
Tredje AP-fonden20,371$4.81M0.04%+4,748+30.4%Added
Nordea Investment Management AB20,816$4.84M0.00%+2,394+13.0%Added
Romano Brothers and Company20,738$4.87M0.56%+150+0.7%Added
Public Employees Retirement Association of Colorado20,616$4.87M0.02%00.0%Unchanged
Omers Administration Corp20,808$4.91M0.04%−2,800−11.9%Reduced
Groupe la Francaise21,372$5.04M0.07%+21,372New
Kestra Advisory Services, LLC21,643$5.11M0.02%−2,640−10.9%Reduced
Central Asset Investments & Management Holdings (HK) Ltd21,825$5.15M3.55%+3,091+16.5%Added
Oppenheimer & Co Inc21,870$5.16M0.06%+75+0.3%Added
Quantessence Capital LLC21,982$5.19M1.64%+21,982New
Occudo Quantitative Strategies LP22,117$5.22M0.64%−36,614−62.3%Reduced
Elo Mutual Pension Insurance Co22,265$5.26M0.09%+5,092+29.7%Added
Northwestern Mutual Wealth Management Co22,330$5.27M0.00%+7,521+50.8%Added
Public Sector Pension Investment Board22,474$5.31M0.02%+2,319+11.5%Added
Waterloo Capital, L.P.22,546$5.32M0.40%−1,937−7.9%Reduced
State of Alaska, Department of Revenue22,621$5.34M0.05%−1,220−5.1%Reduced
Mutual of America Capital Management LLC23,051$5.44M0.06%−1,281−5.3%Reduced
Wealth Enhancement Advisory Services, LLC24,420$5.49M0.01%+245+1.0%Added
Fortis Advisors, LLC23,350$5.51M3.14%00.0%Unchanged
American Century Companies Inc23,564$5.56M0.00%+190+0.8%Added
Utah Retirement Systems23,755$5.61M0.05%+2,117+9.8%Added
1832 Asset Management L.P.23,831$5.63M0.01%−62,375−72.4%Reduced
Lido Advisors, LLC24,020$5.69M0.02%+7,853+48.6%Added
AustralianSuper Pty Ltd24,093$5.69M0.03%+1,547+6.9%Added
Hennion & Walsh Asset Management, Inc.24,110$5.69M0.21%−124−0.5%Reduced
Oregon Public Employees Retirement Fund24,230$5.72M0.07%+5,822+31.6%Added
AXA Investment Managers S.A.24,314$5.74M0.02%+24,314New
Yousif Capital Management, LLC24,397$5.76M0.06%−2,015−7.6%Reduced
Alberta Investment Management Corp24,400$5.76M0.04%+24,400New
Atlantic Trust, LLC24,622$5.81M0.99%+70.0%Added
Janus Henderson Group PLC24,622$5.81M0.00%+1,400+6.0%Added
Quadrature Capital Ltd24,685$5.83M0.07%+24,685New
Catherine Avery Investment Management LLC25,036$5.91M3.81%−7,991−24.2%Reduced
SeaBridge Investment Advisors LLC25,845$6.10M0.99%−2,610−9.2%Reduced
U.S. Capital Wealth Advisors, LLC26,107$6.16M0.17%+26,107New
Beaconlight Capital, LLC26,246$6.20M3.06%−70,151−72.8%Reduced
Insight Wealth Strategies, LLC26,358$6.22M0.73%−28,778−52.2%Reduced
Allworth Financial LP26,720$6.31M0.03%+141+0.5%Added
Kestra Private Wealth Services, LLC27,046$6.38M0.08%−1,295−4.6%Reduced
BTC Capital Management, Inc.27,396$6.47M0.45%−4,702−14.6%Reduced
Lazard Asset Management LLC27,430$6.48M0.01%−55,848−67.1%Reduced
MML Investors Services, LLC27,448$6.48M0.02%+4,431+19.3%Added
SG Americas Securities, LLC27,558$6.50M0.02%+16,307+144.9%Added
MWA Asset Management28,332$6.69M3.69%−1,143−3.9%Reduced
Rockefeller Capital Management L.P.28,377$6.70M0.01%+7,123+33.5%Added
Mirae Asset Global Investments Co., Ltd.28,436$6.71M0.02%+3,138+12.4%Added
Prudential Financial Inc28,569$6.74M0.01%−2,242−7.3%Reduced
Glenmede Investment Management, LP28,636$6.76M0.03%+6,371+28.6%Added
Affinity Wealth Management LLC29,237$6.90M1.01%+23,710+429.0%Added
CIBC Bancorp USA Inc.29,326$6.92M0.04%+29,326New
Amalgamated Bank29,675$7.00M0.05%−397−1.3%Reduced
Mercer Global Advisors Inc29,739$7.02M0.01%+2,230+8.1%Added
CI Private Wealth, LLC29,788$7.03M0.01%+5,205+21.2%Added
M&T Bank Corp29,955$7.07M0.02%+17,481+140.1%Added
Wolverine Trading, LLC30,936$7.09M0.14%+30,936New
Kerrisdale Advisers, LLC30,058$7.10M3.68%−262,693−89.7%Reduced
Pathstone Holdings, LLC30,101$7.11M0.03%+8,210+37.5%Added
British Columbia Investment Management Corp30,498$7.20M0.04%−2,820−8.5%Reduced
Fifth Third Bancorp30,580$7.22M0.02%−9,682−24.0%Reduced
New York Life Investment Management LLC30,964$7.31M0.06%−718−2.3%Reduced
Banque Cantonale Vaudoise32,125$7.58M0.28%+8,817+37.8%Added
MIG Capital, LLC32,150$7.59M1.11%+7,070+28.2%Added
Cambridge Investment Research Advisors, Inc.32,276$7.62M0.02%−5,577−14.7%Reduced
Captrust Financial Advisors32,297$7.62M0.02%+6,138+23.5%Added
Range Financial Group LLC32,773$7.74M2.80%+51+0.2%Added
Prime Capital Investment Advisors, LLC33,540$7.92M0.10%−12,878−27.7%Reduced
Man Group plc33,785$7.98M0.02%+16,389+94.2%Added
CIBC Asset Management Inc33,897$8.00M0.02%+76+0.2%Added
Old Port Advisors34,144$8.06M2.03%−1,514−4.2%Reduced
Teacher Retirement System of Texas34,471$8.14M0.03%+2,328+7.2%Added
Capital Fund Management S.A.34,476$8.14M0.08%+34,476New
Sanctuary Advisors, LLC34,933$8.25M0.05%−2,289−6.1%Reduced
Fjarde Ap-Fonden /Fourth Swedish National Pension Fund35,308$8.34M0.07%+2,208+6.7%Added
Pinpoint Asset Management (Singapore) Pte. Ltd.35,614$8.42M1.56%+260+0.7%Added
DekaBank Deutsche Girozentrale37,100$8.45M0.01%00.0%Unchanged
Daiwa Securities Group Inc.36,321$8.57M0.03%+1,240+3.5%Added
Entropy Technologies, LP36,601$8.64M0.65%−23,961−39.6%Reduced
Federation des caisses Desjardins du Quebec36,703$8.66M0.03%+30,211+465.4%Added
Ieq Capital, LLC37,206$8.78M0.03%−3,569−8.8%Reduced
JustInvest LLC37,324$8.81M0.09%+1,014+2.8%Added
Pacer Advisors, Inc.37,999$8.97M0.02%+7,859+26.1%Added
Chapin Davis, Inc.38,399$9.06M2.23%+38,399New
Hanson & Doremus Investment Management38,432$9.07M1.14%−3,306−7.9%Reduced
Andra AP-fonden38,691$9.13M0.12%−260,309−87.1%Reduced
Eminence Capital, LP38,843$9.17M0.13%+38,843New
FIL Ltd38,934$9.19M0.01%−452−1.1%Reduced
US Bancorp39,080$9.23M0.01%+16,092+70.0%Added
Scotia Capital Inc.39,343$9.29M0.04%+4,058+11.5%Added
Allspring Global Investments Holdings, LLC36,316$9.33M0.01%−24,947−40.7%Reduced
Lifeworks Advisors, LLC39,531$9.33M1.25%+9,033+29.6%Added