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 |
|---|---|---|---|---|---|
| Healthcare of Ontario Pension Plan Trust Fund | 250,187 | $241.4M | 0.34% | −11,658−4.5% | Reduced |
| Principal Financial Group Inc | 249,488 | $240.8M | 0.12% | +5,847+2.4% | Added |
| Mackenzie Financial Corp | 249,469 | $240.7M | 0.24% | +69,767+38.8% | Added |
| National Bank of Canada | 248,623 | $239.9M | 0.21% | +15,299+6.6% | Added |
| Aviva PLC | 244,981 | $236.4M | 0.35% | +61,833+33.8% | Added |
| SEI Investments Co | 243,486 | $235.0M | 0.21% | −3,666−1.5% | Reduced |
| Avala Global LP | 235,520 | $227.3M | 8.38% | −143,910−37.9% | Reduced |
| Rhumbline Advisers | 229,645 | $221.6M | 0.17% | +434+0.2% | Added |
| Evergreen Quality Fund GP, Ltd. | 211,500 | $204.1M | 3.29% | +211,500 | New |
| Standard Life Aberdeen plc | 202,864 | $195.8M | 0.27% | +18,669+10.1% | Added |
| Mirae Asset Global Investments Co., Ltd. | 201,481 | $194.4M | 0.37% | +32,287+19.1% | Added |
| Adage Capital Partners GP, L.L.C. | 200,000 | $193.0M | 0.27% | +14,600+7.9% | Added |
| Bridgewater Associates, LP | 199,822 | $192.8M | 0.79% | −129,295−39.3% | Reduced |
| Neuberger Berman Group LLC | 197,863 | $190.9M | 0.13% | +31,340+18.8% | Added |
| Nomura Asset Management Co Ltd | 192,732 | $186.0M | 0.40% | +104,765+119.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 191,509 | $184.8M | 0.35% | −106,688−35.8% | Reduced |
| ING Groep NV | 191,477 | $184.8M | 0.90% | +165,872+647.8% | Added |
| William Blair Investment Management, LLC | 190,847 | $184.2M | 0.55% | +190,847 | New |
| Primecap Management Co | 188,777 | $182.2M | 0.11% | −41,555−18.0% | Reduced |
| Keystone Investors Pte Ltd | 188,590 | $182.0M | 9.74% | +188,590 | New |
| TOMS Capital Investment Management LP | 180,300 | $174.0M | 9.19% | −150,700−45.5% | Reduced |
| Storebrand Asset Management AS | 176,819 | $170.6M | 0.42% | −35,968−16.9% | Reduced |
| Victory Capital Management Inc | 176,615 | $170.4M | 0.10% | −19,055−9.7% | Reduced |
| New York State Teachers Retirement System | 172,774 | $166.7M | 0.31% | −12,935−7.0% | Reduced |
| Korea Investment CORP | 171,890 | $165.9M | 0.31% | −7,655−4.3% | Reduced |
| Bessemer Group Inc | 171,165 | $165.2M | 0.23% | +158,392+1,240.1% | Added |
| Colony Group, LLC | 169,215 | $163.3M | 0.17% | −80,065−32.1% | Reduced |
| APG Asset Management N.V. | 191,218 | $161.4M | 0.40% | +46,287+31.9% | Added |
| NEOS Investment Management LLC | 166,382 | $160.6M | 0.59% | +19,624+13.4% | Added |
| Hawk Ridge Capital Management LP | 159,320 | $153.7M | 4.93% | −13,980−8.1% | Reduced |
| KBC Group NV | 155,454 | $150.0M | 0.32% | −89,607−36.6% | Reduced |
| PFA Pension, Forsikringsaktieselskab | 153,812 | $148.4M | 0.38% | −2,795−1.8% | Reduced |
| Stifel Financial Corp | 152,692 | $147.3M | 0.12% | +20,399+15.4% | Added |
| Capital World Investors | 151,440 | $146.1M | 0.02% | +151,440 | New |
| Whale Rock Capital Management LLC | 148,543 | $143.3M | 1.15% | +148,543 | New |
| M&G Plc | 139,501 | $134.6M | 0.67% | −82,408−37.1% | Reduced |
| Pictet Asset Management Holding SA | 139,137 | $134.3M | 0.13% | +3,758+2.8% | Added |
| Teacher Retirement System of Texas | 129,005 | $124.5M | 0.33% | −61,126−32.1% | Reduced |
| Danske Bank A/S | 128,935 | $124.4M | 0.25% | +7,674+6.3% | Added |
| O'Shaughnessy Asset Management, LLC | 127,194 | $122.7M | 0.57% | −8,908−6.5% | Reduced |
| Manufacturers Life Insurance Company, The | 126,359 | $121.9M | 0.10% | +6,010+5.0% | Added |
| State of Wisconsin Investment Board | 123,388 | $119.1M | 0.24% | −14,161−10.3% | Reduced |
| Virginia Retirement Systems Et Al | 122,179 | $117.9M | 0.70% | −26,721−17.9% | Reduced |
| Duquesne Family Office LLCSuperinvestorDuquesne Family Office | 122,000 | $117.7M | 2.70% | +71,300+140.6% | Added |
| GF Fund Management Co. Ltd. | 121,597 | $117.3M | 1.41% | +77,833+177.8% | Added |
| AustralianSuper Pty Ltd | 120,320 | $116.1M | 0.50% | +103,510+615.8% | Added |
| Quantinno Capital Management LP | 117,580 | $113.5M | 0.14% | −8,053−6.4% | Reduced |
| Allspring Global Investments Holdings, LLC | 122,140 | $111.8M | 0.17% | +91,287+295.9% | Added |
| Cetera Investment Advisers | 115,785 | $111.7M | 0.10% | +5,612+5.1% | Added |
| CIBC Asset Management Inc | 115,174 | $111.1M | 0.24% | +24,637+27.2% | Added |
| Rivermont Capital Management LP | 113,669 | $109.7M | 15.56% | −8,456−6.9% | Reduced |
| Artemis Investment Management LLP | 112,419 | $108.5M | 0.97% | −70,345−38.5% | Reduced |
| Vanguard Investments Australia, Ltd. | 111,994 | $108.1M | 0.27% | +3,389+3.1% | Added |
| American Century Companies Inc | 110,924 | $107.0M | 0.05% | +79,538+253.4% | Added |
| Handelsbanken Fonder AB | 109,611 | $105.8M | 0.30% | −54,642−33.3% | Reduced |
| Blue Whale Capital LLP | 109,222 | $105.4M | 3.34% | +32,148+41.7% | Added |
| Kinetic Partners Management, LP | 108,897 | $105.1M | 2.51% | +49,697+83.9% | Added |
| Fred Alger Management, LLC | 108,461 | $104.7M | 0.35% | +45,902+73.4% | Added |
| Chevy Chase Trust Holdings, Inc. | 108,280 | $104.5M | 0.27% | +837+0.8% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 107,896 | $104.1M | 0.23% | +4,043+3.9% | Added |
| LMR Partners LLP | 104,600 | $100.9M | 0.74% | −32,354−23.6% | Reduced |
| Marshall Wace, LLP | 103,612 | $100.0M | 0.08% | +89,187+618.3% | Added |
| Federated Hermes, Inc. | 103,255 | $99.6M | 0.14% | −77,628−42.9% | Reduced |
| Keywise Capital Management (HK) Ltd | 102,000 | $98.4M | 14.17% | −784−0.8% | Reduced |
| Schonfeld Strategic Advisors LLC | 101,944 | $98.4M | 0.52% | +11,401+12.6% | Added |
| Royal London Asset Management Ltd | 100,047 | $96.5M | 0.18% | +7,418+8.0% | Added |
| Toroso Investments, LLC | 99,407 | $95.9M | 0.23% | +31,136+45.6% | Added |
| Swiss Life Asset Management Ltd | – | $94.9M | 0.39% | – | New |
| Asset Management One Co.,Ltd. | 98,311 | $94.9M | 0.24% | +5,228+5.6% | Added |
| Mariner, LLC | 95,939 | $92.6M | 0.10% | +24,436+34.2% | Added |
| Credit Agricole S A | 95,873 | $92.5M | 0.23% | −913−0.9% | Reduced |
| KLP Kapitalforvaltning AS | 91,955 | $88.8M | 0.29% | +9,960+12.1% | Added |
| UBS Asset Management Americas Inc | 91,889 | $88.7M | 0.02% | −1,442,323−94.0% | Reduced |
| Rafferty Asset Management, LLC | 90,937 | $87.8M | 0.20% | +11,041+13.8% | Added |
| Jones Financial Companies LLLP | 94,452 | $85.0M | 0.03% | +13,070+16.1% | Added |
| Panagora Asset Management Inc | 83,585 | $80.7M | 0.25% | +38,808+86.7% | Added |
| Capitolis Liquid Global Markets LLC | 81,684 | $78.8M | 0.34% | −14,902−15.4% | Reduced |
| Robeco Institutional Asset Management B.V. | 80,692 | $77.9M | 0.10% | +548+0.7% | Added |
| Atika Capital Management LLC | 79,865 | $77.1M | 7.65% | +26,365+49.3% | Added |
| Tredje AP-fonden | 79,678 | $76.9M | 0.35% | −13,595−14.6% | Reduced |
| Wedge Capital Management L L P | 77,655 | $74.9M | 1.24% | −64,226−45.3% | Reduced |
| State of Tennessee, Treasury Department | 76,180 | $73.5M | 0.22% | +1,743+2.3% | Added |
| Nishkama Capital, LLC | 75,373 | $72.7M | 8.21% | +25,107+49.9% | Added |
| Worldquant Millennium Advisors LLC | 74,875 | $72.3M | 0.25% | +2,600+3.6% | Added |
| Creative Planning | 74,365 | $71.8M | 0.04% | +11,630+18.5% | Added |
| Advisor Group Holdings, Inc. | 73,206 | $70.7M | 0.08% | +10,608+16.9% | Added |
| Clear Street Group Inc. | 73,123 | $70.6M | 0.22% | +73,123 | New |
| Ci Investments Inc. | 72,667 | $70.1M | 0.23% | +52,910+267.8% | Added |
| E20 Capital Ltd | 72,280 | $69.8M | 5.62% | +72,280 | New |
| Janney Montgomery Scott LLC | 71,987 | $69.5M | 0.13% | −6,991−8.9% | Reduced |
| Lazard Asset Management LLC | 71,831 | $69.3M | 0.10% | +42,527+145.1% | Added |
| Cerity Partners LLC | 70,952 | $68.5M | 0.08% | +10,571+17.5% | Added |
| State of New Jersey Common Pension Fund D | 70,708 | $68.2M | 0.23% | −3,847−5.2% | Reduced |
| Public Employees Retirement Association of Colorado | 70,573 | $68.1M | 0.24% | +14,757+26.4% | Added |
| Eastern Bank | 69,932 | $67.5M | 1.03% | +8,628+14.1% | Added |
| Vinva Investment Management Ltd | 69,655 | $67.5M | 0.45% | +30,766+79.1% | Added |
| SEB Asset Management AB | 69,799 | $67.4M | 0.25% | +11,717+20.2% | Added |
| HighTower Advisors, LLC | 69,455 | $67.0M | 0.06% | −570−0.8% | Reduced |
| Nordea Investment Management AB | 68,907 | $66.8M | 0.05% | +37,950+122.6% | Added |
| Public Sector Pension Investment Board | 68,998 | $66.6M | 0.17% | +29,967+76.8% | Added |