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 34 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, Q2 2026
Institutional positions in Seagate Technology Holdings plc as of Jun 30, 2026. 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
- 1,973
- +520 vs. Q1 2026
- Shares held
- 188.5M
- −677.3K (−0.4%) vs. Q1 2026
- Total value
- $181.1B
- +$107.3B (+145.4%) vs. Q1 2026
- New holders
- 587
- 629 more added
- Sold out
- 67
- 604 more reduced
19 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,973 | $181.1B |
| Q1 2026 | 1,472 | $74.2B |
| Q4 2025 | 1,280 | $53.5B |
| Q3 2025 | 1,126 | $45.8B |
| Q2 2025 | 956 | $28.8B |
| Q1 2025 | 801 | $16.9B |
| Q4 2024 | 806 | $16.6B |
| Q3 2024 | 821 | $20.4B |
| Q2 2024 | 799 | $19.3B |
| Q1 2024 | 768 | $17.2B |
| Q4 2023 | 730 | $16.2B |
| Q3 2023 | 657 | $12.3B |
| Q2 2023 | 660 | $11.0B |
| Q1 2023 | 673 | $12.1B |
| Q4 2022 | 643 | $9.40B |
| Q3 2022 | 666 | $9.29B |
| Q2 2022 | 714 | $12.5B |
| Q1 2022 | 703 | $15.4B |
| Q4 2021 | 794 | $20.4B |
| Q3 2021 | 694 | $15.2B |
| Q2 2021 | 679 | $16.2B |
| Q1 2021 | 678 | $15.5B |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Seagate Technology Holdings plc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Ilmarinen Mutual Pension Insurance Co | 32,384 | $31.3M | 0.21% | −5,332−14.1% | Reduced |
| CIBC Bancorp USA Inc. | 32,311 | $31.2M | 0.04% | −10,531−24.6% | Reduced |
| Harvest Fund Management Co., Ltd | 32,070 | $30.9M | 1.02% | +443+1.4% | Added |
| Affinity Wealth Management LLC | 31,734 | $30.6M | 3.94% | −317−1.0% | Reduced |
| Hanson & Doremus Investment Management | 31,488 | $30.4M | 3.09% | −1,775−5.3% | Reduced |
| Delta Global Management LP | 31,035 | $29.9M | 3.25% | +27,382+749.6% | Added |
| Omers Administration Corp | 30,682 | $29.6M | 0.18% | +6,142+25.0% | Added |
| Old Port Advisors | 30,342 | $29.3M | 5.78% | −1,724−5.4% | Reduced |
| D1 Capital Partners L.P.SuperinvestorD1 Capital Partners | 30,115 | $29.1M | 0.08% | +30,115 | New |
| ASR Vermogensbeheer N.V. | 29,647 | $28.6M | 0.29% | +5,761+24.1% | Added |
| GWM Advisors LLC | 29,426 | $28.4M | 0.08% | +7,380+33.5% | Added |
| Los Angeles Capital Management LLC | 29,123 | $28.1M | 0.10% | −53,996−65.0% | Reduced |
| Liontrust Investment Partners LLP | 29,040 | $28.0M | 0.41% | +29,040 | New |
| Andra AP-fonden | 28,927 | $27.9M | 0.32% | −3,760−11.5% | Reduced |
| Artisan Partners Limited Partnership | 28,653 | $27.7M | 0.05% | −54,819−65.7% | Reduced |
| Amalgamated Bank | 28,511 | $27.5M | 0.19% | −227−0.8% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 31,530 | $27.4M | 0.05% | +6,307+25.0% | Added |
| Allworth Financial LP | 28,011 | $27.0M | 0.12% | +20.0% | Added |
| Ritholtz Wealth Management | 27,787 | $26.8M | 0.40% | +590+2.2% | Added |
| Walleye Capital LLC | 27,721 | $26.8M | 0.13% | −109,707−79.8% | Reduced |
| Ariose Capital Management Ltd | 27,616 | $26.6M | 11.38% | −68,984−71.4% | Reduced |
| Oregon Public Employees Retirement Fund | 27,553 | $26.6M | 0.29% | +2,582+10.3% | Added |
| Parkwood LLC | 27,492 | $26.5M | 1.90% | −21,242−43.6% | Reduced |
| Calamos Advisors LLC | 27,448 | $26.5M | 0.10% | +4,235+18.2% | Added |
| Gateway Investment Advisers LLC | 27,093 | $26.1M | 0.26% | +24,308+872.8% | Added |
| M&T Bank Corp | 26,808 | $25.9M | 0.08% | −1,849−6.5% | Reduced |
| Lifeworks Advisors, LLC | 26,621 | $25.7M | 2.69% | −1,116−4.0% | Reduced |
| Chapin Davis, Inc. | 26,495 | $25.6M | 4.50% | −8,415−24.1% | Reduced |
| Empowered Funds, LLC | 26,031 | $25.1M | 0.13% | −16,185−38.3% | Reduced |
| Louisiana State Employees Retirement System | 25,900 | $25.0M | 0.37% | +500+2.0% | Added |
| Fifth Third Bancorp | 25,854 | $24.9M | 0.04% | −344−1.3% | Reduced |
| Xponance, Inc. | 25,464 | $24.6M | 0.15% | +1,088+4.5% | Added |
| CI Private Wealth, LLC | 25,430 | $24.5M | 0.03% | −10,805−29.8% | Reduced |
| Portman Square Capital LLP | 25,167 | $24.3M | 4.14% | +25,167 | New |
| Maplelane Capital, LLC | 25,001 | $24.1M | 1.01% | +25,001 | New |
| Rheos Capital Works Inc. | 25,000 | $24.1M | 1.38% | −42,500−63.0% | Reduced |
| Shelton Capital Management | 24,760 | $23.9M | 0.44% | −395−1.6% | Reduced |
| Picton Mahoney Asset Management | 24,489 | $23.6M | 0.22% | −1,681−6.4% | Reduced |
| Federation des caisses Desjardins du Quebec | 24,354 | $23.5M | 0.07% | −8,400−25.6% | Reduced |
| Eventide Asset Management, LLC | 23,637 | $22.8M | 0.31% | +1,990+9.2% | Added |
| Teachers Retirement System of the State of Kentucky | 22,623 | $21.8M | 0.15% | +6,083+36.8% | Added |
| Allstate Corp | 22,501 | $21.7M | 0.22% | +153+0.7% | Added |
| Temasek Holdings (Private) Ltd | 22,443 | $21.7M | 0.06% | −35,661−61.4% | Reduced |
| Windward Capital Management Co | 22,412 | $21.6M | 1.64% | −14,329−39.0% | Reduced |
| Utah Retirement Systems | 22,330 | $21.5M | 0.20% | −1,493−6.3% | Reduced |
| Zevenbergen Capital Investments LLC | 22,100 | $21.3M | 0.49% | +3,600+19.5% | Added |
| Aquatic Capital Management LLC | 22,073 | $21.3M | 0.73% | −10,646−32.5% | Reduced |
| CAPROCK Group, Inc. | 22,051 | $21.3M | 0.41% | −537−2.4% | Reduced |
| Prospera Financial Services Inc | 22,041 | $21.3M | 0.31% | +744+3.5% | Added |
| State of Alaska, Department of Revenue | 21,971 | $21.2M | 0.21% | +215+1.0% | Added |
| Taikang Asset Management (Hong Kong) Co Ltd | 21,764 | $21.0M | 1.91% | −9,980−31.4% | Reduced |
| Abn Amro Investment Solutions | 21,263 | $20.5M | 0.18% | +7,191+51.1% | Added |
| Norinchukin Bank, The | 21,112 | $20.4M | 0.20% | +917+4.5% | Added |
| QRG Capital Management, Inc. | 21,081 | $20.3M | 0.17% | +2,826+15.5% | Added |
| Prime Capital Investment Advisors, LLC | 21,047 | $20.3M | 0.20% | −7,995−27.5% | Reduced |
| Mutual of America Capital Management LLC | 20,899 | $20.2M | 0.20% | −2,293−9.9% | Reduced |
| Tortoise Capital Advisors, L.L.C. | 20,722 | $20.0M | 0.20% | +1,734+9.1% | Added |
| Cornerstone Advisors, LLC | 20,622 | $19.9M | 0.66% | 00.0% | Unchanged |
| Yousif Capital Management, LLC | 20,559 | $19.8M | 0.22% | −1,480−6.7% | Reduced |
| PDT Partners, LLC | 20,300 | $19.6M | 1.03% | +20,300 | New |
| PEAK6 LLC | 20,194 | $19.5M | 0.47% | −25,334−55.6% | Reduced |
| Brinker Capital Investments, LLC | 19,870 | $19.2M | 0.15% | +2,538+14.6% | Added |
| Illinois Municipal Retirement Fund | 19,605 | $18.9M | 0.21% | +1,455+8.0% | Added |
| Berkshire Capital Holdings Inc | 19,590 | $18.9M | 4.09% | +19,580+195,800.0% | Added |
| Ethic Inc. | 19,485 | $18.8M | 0.23% | −1,265−6.1% | Reduced |
| Aragon Global Management, LP | 19,043 | $18.4M | 6.96% | +19,043 | New |
| Untitled Investments LP | 18,958 | $18.3M | 7.12% | +18,958 | New |
| Profund Advisors LLC | 18,691 | $18.0M | 0.50% | +1,991+11.9% | Added |
| Kestra Private Wealth Services, LLC | 18,683 | $18.0M | 0.20% | −4,474−19.3% | Reduced |
| Icon Advisers Inc | 18,001 | $17.4M | 3.27% | −10,962−37.8% | Reduced |
| CVFG LLC | 17,875 | $17.2M | 1.81% | −4,816−21.2% | Reduced |
| VMS Asset Management Limited | 17,871 | $17.2M | 5.48% | +17,871 | New |
| Zweig-DiMenna Associates LLC | 17,844 | $17.2M | 1.56% | 00.0% | Unchanged |
| Bell Bank | 17,792 | $17.2M | 0.65% | −17,882−50.1% | Reduced |
| BTC Capital Management, Inc. | 17,789 | $17.2M | 1.04% | −6,455−26.6% | Reduced |
| Night Squared LP | 17,571 | $17.0M | 1.82% | −9,466−35.0% | Reduced |
| Mizuho Securities USA LLC | 17,555 | $16.9M | 0.27% | +4,372+33.2% | Added |
| Gulf International Bank (UK) Ltd | 17,181 | $16.6M | 0.33% | +353+2.1% | Added |
| Brookstone Capital Management | 17,150 | $16.6M | 0.17% | +965+6.0% | Added |
| SeaBridge Investment Advisors LLC | 16,891 | $16.3M | 2.36% | −4,800−22.1% | Reduced |
| Hidden Lake Asset Management LP | 16,877 | $16.3M | 11.10% | +16,877 | New |
| XTX Topco Ltd | 16,735 | $16.1M | 0.21% | +11,775+237.4% | Added |
| Lombard Odier Asset Management (Switzerland) SA | 16,686 | $16.1M | 0.51% | −12,224−42.3% | Reduced |
| Aware Super Pty Ltd as trustee of Aware Super | 16,630 | $16.0M | 0.23% | +16,045+2,742.7% | Added |
| Elo Mutual Pension Insurance Co | 16,400 | $15.8M | 0.20% | −5,474−25.0% | Reduced |
| Engineers Gate Manager LP | 16,346 | $15.8M | 0.20% | −1,401−7.9% | Reduced |
| Marex Group plc | 16,029 | $15.5M | 0.11% | +10,384+184.0% | Added |
| Peapack Gladstone Financial Corp | 15,899 | $15.3M | 0.18% | −373−2.3% | Reduced |
| Thrivent Financial for Lutherans | 15,842 | $15.3M | 0.03% | +6,092+62.5% | Added |
| Atlantic Trust, LLC | 15,808 | $15.3M | 1.99% | −6,697−29.8% | Reduced |
| Steward Partners Investment Advisory, LLC | 15,553 | $15.0M | 0.08% | −3,230−17.2% | Reduced |
| SummitTX Capital, L.P. | 15,525 | $15.0M | 0.40% | +15,525 | New |
| Assetmark, Inc | 15,403 | $14.9M | 0.03% | +11,586+303.5% | Added |
| Kestra Advisory Services, LLC | 15,397 | $14.9M | 0.05% | −8,294−35.0% | Reduced |
| Calamos Wealth Management LLC | 15,334 | $14.8M | 0.45% | +14,741+2,485.8% | Added |
| Saudi Central Bank | 15,290 | $14.8M | 0.19% | +7,248+90.1% | Added |
| Farther Finance Advisors, LLC | 15,286 | $14.8M | 0.12% | +1,995+15.0% | Added |
| Genus Capital Management Inc. | 15,228 | $14.7M | 1.45% | −4,297−22.0% | Reduced |
| Integrity Alliance, LLC. | 15,181 | $14.6M | 0.46% | −6,145−28.8% | Reduced |
| Cantor Fitzgerald, L. P. | 15,034 | $14.5M | 0.28% | +15,034 | New |