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, 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
Q3 2026 data is still coming in: 3 institutions have reported holding STX so far. See Q3 2026
- 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 |
|---|---|---|---|---|---|
| UBS Asset Management Americas Inc | 91,889 | $88.7M | 0.02% | −1,442,323−94.0% | Reduced |
| KLP Kapitalforvaltning AS | 91,955 | $88.8M | 0.29% | +9,960+12.1% | Added |
| Credit Agricole S A | 95,873 | $92.5M | 0.23% | −913−0.9% | Reduced |
| Mariner, LLC | 95,939 | $92.6M | 0.10% | +24,436+34.2% | Added |
| Asset Management One Co.,Ltd. | 98,311 | $94.9M | 0.24% | +5,228+5.6% | Added |
| Swiss Life Asset Management Ltd | – | $94.9M | 0.39% | – | New |
| Toroso Investments, LLC | 99,407 | $95.9M | 0.23% | +31,136+45.6% | Added |
| Royal London Asset Management Ltd | 100,047 | $96.5M | 0.18% | +7,418+8.0% | Added |
| Schonfeld Strategic Advisors LLC | 101,944 | $98.4M | 0.52% | +11,401+12.6% | Added |
| Keywise Capital Management (HK) Ltd | 102,000 | $98.4M | 14.17% | −784−0.8% | Reduced |
| Federated Hermes, Inc. | 103,255 | $99.6M | 0.14% | −77,628−42.9% | Reduced |
| Marshall Wace, LLP | 103,612 | $100.0M | 0.08% | +89,187+618.3% | Added |
| LMR Partners LLP | 104,600 | $100.9M | 0.74% | −32,354−23.6% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 107,896 | $104.1M | 0.23% | +4,043+3.9% | Added |
| Chevy Chase Trust Holdings, Inc. | 108,280 | $104.5M | 0.27% | +837+0.8% | Added |
| Fred Alger Management, LLC | 108,461 | $104.7M | 0.35% | +45,902+73.4% | Added |
| Kinetic Partners Management, LP | 108,897 | $105.1M | 2.51% | +49,697+83.9% | Added |
| Blue Whale Capital LLP | 109,222 | $105.4M | 3.34% | +32,148+41.7% | Added |
| Handelsbanken Fonder AB | 109,611 | $105.8M | 0.30% | −54,642−33.3% | Reduced |
| American Century Companies Inc | 110,924 | $107.0M | 0.05% | +79,538+253.4% | Added |
| Vanguard Investments Australia, Ltd. | 111,994 | $108.1M | 0.27% | +3,389+3.1% | Added |
| Artemis Investment Management LLP | 112,419 | $108.5M | 0.97% | −70,345−38.5% | Reduced |
| Rivermont Capital Management LP | 113,669 | $109.7M | 15.56% | −8,456−6.9% | Reduced |
| CIBC Asset Management Inc | 115,174 | $111.1M | 0.24% | +24,637+27.2% | Added |
| Cetera Investment Advisers | 115,785 | $111.7M | 0.10% | +5,612+5.1% | Added |
| Allspring Global Investments Holdings, LLC | 122,140 | $111.8M | 0.17% | +91,287+295.9% | Added |
| Quantinno Capital Management LP | 117,580 | $113.5M | 0.14% | −8,053−6.4% | Reduced |
| AustralianSuper Pty Ltd | 120,320 | $116.1M | 0.50% | +103,510+615.8% | Added |
| GF Fund Management Co. Ltd. | 121,597 | $117.3M | 1.41% | +77,833+177.8% | Added |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 122,000 | $117.7M | 2.70% | +71,300+140.6% | Added |
| Virginia Retirement Systems Et Al | 122,179 | $117.9M | 0.70% | −26,721−17.9% | Reduced |
| State of Wisconsin Investment Board | 123,388 | $119.1M | 0.24% | −14,161−10.3% | Reduced |
| Manufacturers Life Insurance Company, The | 126,359 | $121.9M | 0.10% | +6,010+5.0% | Added |
| O'Shaughnessy Asset Management, LLC | 127,194 | $122.7M | 0.57% | −8,908−6.5% | Reduced |
| Danske Bank A/S | 128,935 | $124.4M | 0.25% | +7,674+6.3% | Added |
| Teacher Retirement System of Texas | 129,005 | $124.5M | 0.33% | −61,126−32.1% | Reduced |
| Pictet Asset Management Holding SA | 139,137 | $134.3M | 0.13% | +3,758+2.8% | Added |
| M&G Plc | 139,501 | $134.6M | 0.67% | −82,408−37.1% | Reduced |
| Whale Rock Capital Management LLC | 148,543 | $143.3M | 1.15% | +148,543 | New |
| Capital World Investors | 151,440 | $146.1M | 0.02% | +151,440 | New |
| Stifel Financial Corp | 152,692 | $147.3M | 0.12% | +20,399+15.4% | Added |
| PFA Pension, Forsikringsaktieselskab | 153,812 | $148.4M | 0.38% | −2,795−1.8% | Reduced |
| KBC Group NV | 155,454 | $150.0M | 0.32% | −89,607−36.6% | Reduced |
| Hawk Ridge Capital Management LP | 159,320 | $153.7M | 4.93% | −13,980−8.1% | Reduced |
| NEOS Investment Management LLC | 166,382 | $160.6M | 0.59% | +19,624+13.4% | Added |
| APG Asset Management N.V. | 191,218 | $161.4M | 0.40% | +46,287+31.9% | Added |
| Colony Group, LLC | 169,215 | $163.3M | 0.17% | −80,065−32.1% | Reduced |
| Bessemer Group Inc | 171,165 | $165.2M | 0.23% | +158,392+1,240.1% | Added |
| Korea Investment CORP | 171,890 | $165.9M | 0.31% | −7,655−4.3% | Reduced |
| New York State Teachers Retirement System | 172,774 | $166.7M | 0.31% | −12,935−7.0% | Reduced |
| Victory Capital Management Inc | 176,615 | $170.4M | 0.10% | −19,055−9.7% | Reduced |
| Storebrand Asset Management AS | 176,819 | $170.6M | 0.42% | −35,968−16.9% | Reduced |
| TOMS Capital Investment Management LP | 180,300 | $174.0M | 9.19% | −150,700−45.5% | Reduced |
| Keystone Investors Pte Ltd | 188,590 | $182.0M | 9.74% | +188,590 | New |
| Primecap Management Co | 188,777 | $182.2M | 0.11% | −41,555−18.0% | Reduced |
| William Blair Investment Management, LLC | 190,847 | $184.2M | 0.55% | +190,847 | New |
| ING Groep NV | 191,477 | $184.8M | 0.90% | +165,872+647.8% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 191,509 | $184.8M | 0.35% | −106,688−35.8% | Reduced |
| Nomura Asset Management Co Ltd | 192,732 | $186.0M | 0.40% | +104,765+119.1% | Added |
| Neuberger Berman Group LLC | 197,863 | $190.9M | 0.13% | +31,340+18.8% | Added |
| Bridgewater Associates, LP | 199,822 | $192.8M | 0.79% | −129,295−39.3% | Reduced |
| Adage Capital Partners GP, L.L.C. | 200,000 | $193.0M | 0.27% | +14,600+7.9% | Added |
| Mirae Asset Global Investments Co., Ltd. | 201,481 | $194.4M | 0.37% | +32,287+19.1% | Added |
| Standard Life Aberdeen plc | 202,864 | $195.8M | 0.27% | +18,669+10.1% | Added |
| Evergreen Quality Fund GP, Ltd. | 211,500 | $204.1M | 3.29% | +211,500 | New |
| Rhumbline Advisers | 229,645 | $221.6M | 0.17% | +434+0.2% | Added |
| Avala Global LP | 235,520 | $227.3M | 8.38% | −143,910−37.9% | Reduced |
| SEI Investments Co | 243,486 | $235.0M | 0.21% | −3,666−1.5% | Reduced |
| Aviva PLC | 244,981 | $236.4M | 0.35% | +61,833+33.8% | Added |
| National Bank of Canada | 248,623 | $239.9M | 0.21% | +15,299+6.6% | Added |
| Mackenzie Financial Corp | 249,469 | $240.7M | 0.24% | +69,767+38.8% | Added |
| Principal Financial Group Inc | 249,488 | $240.8M | 0.12% | +5,847+2.4% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 250,187 | $241.4M | 0.34% | −11,658−4.5% | Reduced |
| LPL Financial LLC | 252,892 | $244.0M | 0.05% | −13,014−4.9% | Reduced |
| ProShare Advisors LLC | 255,231 | $246.3M | 0.36% | −63,279−19.9% | Reduced |
| Balyasny Asset Management LLC | 256,151 | $247.2M | 0.45% | −139,985−35.3% | Reduced |
| Alliancebernstein L.P. | 649,106 | $254.3M | 0.09% | +453,734+232.2% | Added |
| Natixis Advisors, L.P. | 266,259 | $256.9M | 0.29% | +52,262+24.4% | Added |
| Clearbridge Investments, LLC | 272,765 | $263.2M | 0.22% | +269,597+8,510.0% | Added |
| Ensign Peak Advisors, Inc | 272,913 | $263.4M | 0.43% | +17,187+6.7% | Added |
| Anther Capital Ltd | 283,416 | $273.5M | 7.00% | −47,817−14.4% | Reduced |
| TD Asset Management Inc | 283,546 | $273.6M | 0.24% | +166,967+143.2% | Added |
| Tiger Global Management LLCSuperinvestorTiger Global Management | 285,100 | $275.1M | 1.15% | +285,100 | New |
| Susquehanna International Group, LLP | 288,385 | $278.3M | 0.25% | +118,197+69.5% | Added |
| Amanah Holdings Trust | 289,774 | $279.6M | 16.42% | 00.0% | Unchanged |
| Alyeska Investment Group, L.P. | 291,439 | $281.2M | 0.72% | +166,354+133.0% | Added |
| HRT Financial LP | 300,093 | $289.6M | 0.53% | +70,562+30.7% | Added |
| Maple Rock Capital Partners Inc. | 301,162 | $290.6M | 5.70% | −232,823−43.6% | Reduced |
| Allianz Asset Management GmbH | 304,216 | $293.6M | 0.27% | +76,843+33.8% | Added |
| Quadrature Capital Ltd | 313,545 | $302.6M | 2.59% | +215,951+221.3% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 317,585 | $306.0M | 0.36% | +6,137+2.0% | Added |
| Cacti Asset Management LLC | 327,925 | $316.4M | 15.87% | −198,080−37.7% | Reduced |
| California State Teachers Retirement System | 328,233 | $316.7M | 0.29% | +20,940+6.8% | Added |
| Raymond James Financial Inc | 348,962 | $336.7M | 0.09% | −36,367−9.4% | Reduced |
| Two Sigma Investments, LP | 354,816 | $342.4M | 0.26% | +252,291+246.1% | Added |
| Ameriprise Financial Inc | 368,748 | $355.9M | 0.07% | −60,252−14.0% | Reduced |
| Wells Fargo & Company | 372,329 | $359.3M | 0.06% | +46,917+14.4% | Added |
| Palestra Capital Management LLC | 386,123 | $372.6M | 12.63% | +92,123+31.3% | Added |
| Envestnet Asset Management Inc | 398,344 | $384.4M | 0.09% | +93,200+30.5% | Added |
| HSBC Holdings PLC | 418,762 | $401.8M | 0.19% | +40,235+10.6% | Added |