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, Q1 2026
Institutional positions in Seagate Technology Holdings plc as of Mar 31, 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
- 1,471
- +209 vs. Q4 2025
- Shares held
- 190.3M
- +26.0M (+15.8%) vs. Q4 2025
- Total value
- $74.2B
- +$29.0B (+64.1%) vs. Q4 2025
- New holders
- 311
- 496 more added
- Sold out
- 102
- 503 more reduced
17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,973 | $181.1B |
| Q1 2026 | 1,471 | $74.2B |
| Q4 2025 | 1,279 | $53.5B |
| Q3 2025 | 1,125 | $45.8B |
| Q2 2025 | 955 | $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, Q1 2026
Shares, value and share of portfolio for each institution holding Seagate Technology Holdings plc; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Rafferty Asset Management, LLC | 79,896 | $31.3M | 0.13% | −31,081−28.0% | Reduced |
| Robeco Institutional Asset Management B.V. | 80,144 | $31.4M | 0.04% | +20,002+33.3% | Added |
| Migdal Insurance & Financial Holdings Ltd. | 81,000 | $31.8M | 0.28% | +81,000 | New |
| KLP Kapitalforvaltning AS | 81,995 | $32.2M | 0.13% | +3,100+3.9% | Added |
| Los Angeles Capital Management LLC | 83,119 | $32.6M | 0.13% | −527,491−86.4% | Reduced |
| Artisan Partners Limited Partnership | 83,472 | $32.7M | 0.05% | +83,472 | New |
| AE Wealth Management LLC | 83,523 | $32.7M | 0.18% | +63,250+312.0% | Added |
| Wellington Management Group LLP | 87,598 | $34.3M | 0.01% | −42,018−32.4% | Reduced |
| Nomura Asset Management Co Ltd | 87,967 | $34.5M | 0.09% | −448−0.5% | Reduced |
| Hancock Whitney Corp | 52,052 | $34.9M | 0.61% | −26,190−33.5% | Reduced |
| CIBC Asset Management Inc | 90,537 | $35.5M | 0.09% | +407+0.5% | Added |
| Schonfeld Strategic Advisors LLC | 90,543 | $35.5M | 0.29% | +89,411+7,898.5% | Added |
| CCM Investment Advisers LLC | 91,988 | $36.0M | 3.45% | −10,293−10.1% | Reduced |
| Royal London Asset Management Ltd | 92,629 | $36.3M | 0.08% | +367+0.4% | Added |
| Asset Management One Co.,Ltd. | 93,083 | $36.5M | 0.11% | +2,171+2.4% | Added |
| Tredje AP-fonden | 93,273 | $36.5M | 0.20% | −18,066−16.2% | Reduced |
| Boothbay Fund Management, LLC | 93,275 | $36.5M | 0.86% | +17,807+23.6% | Added |
| Capitolis Liquid Global Markets LLC | 96,586 | $37.8M | 0.24% | +96,586 | New |
| Ariose Capital Management Ltd | 96,600 | $37.8M | 25.41% | +96,600 | New |
| Credit Agricole S A | 96,786 | $37.9M | 0.12% | +68,858+246.6% | Added |
| Quadrature Capital Ltd | 97,594 | $38.2M | 0.45% | +97,594 | New |
| Davidson Kempner Capital Management LP | 101,700 | $39.8M | 0.71% | +26,700+35.6% | Added |
| Tudor Investment Corp Et Al | 102,041 | $40.0M | 0.22% | +102,041 | New |
| Two Sigma Investments, LP | 102,525 | $40.2M | 0.03% | +82,307+407.1% | Added |
| Keystone Financial Group | 62,749 | $40.2M | 2.75% | −68−0.1% | Reduced |
| Keywise Capital Management (HK) Ltd | 102,784 | $40.3M | 6.79% | +102,784 | New |
| Mitsubishi UFJ Trust & Banking Corp | 103,853 | $40.7M | 0.10% | +13,880+15.4% | Added |
| Deroy & Devereaux Private Investment Counsel Inc | 106,694 | $41.8M | 2.00% | −28,255−20.9% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 107,443 | $42.1M | 0.12% | −3,025−2.7% | Reduced |
| Colony Capital, Inc. | 108,121 | $42.4M | 2.69% | −56,071−34.1% | Reduced |
| Vanguard Investments Australia, Ltd. | 108,605 | $42.5M | 0.12% | +108,605 | New |
| Cetera Investment Advisers | 110,173 | $43.2M | 0.05% | +570+0.5% | Added |
| Advisors Capital Management, LLC | 110,701 | $43.4M | 0.51% | −70,565−38.9% | Reduced |
| Citadel Advisors LLC | 110,745 | $43.4M | 0.03% | −80,417−42.1% | Reduced |
| TD Asset Management Inc | 116,579 | $45.7M | 0.04% | +13,381+13.0% | Added |
| Manufacturers Life Insurance Company, The | 120,349 | $47.1M | 0.04% | −14,463−10.7% | Reduced |
| Danske Bank A/S | 121,261 | $47.5M | 0.11% | +14,231+13.3% | Added |
| Rivermont Capital Management LP | 122,125 | $47.8M | 10.08% | +5,629+4.8% | Added |
| Alyeska Investment Group, L.P. | 125,085 | $49.0M | 0.14% | −221,591−63.9% | Reduced |
| Rokos Capital Management LLP | 125,491 | $49.1M | 0.87% | −154,404−55.2% | Reduced |
| Quantinno Capital Management LP | 125,633 | $49.2M | 0.08% | −10,850−7.9% | Reduced |
| APG Asset Management N.V. | 144,931 | $49.3M | 0.16% | +22,058+18.0% | Added |
| Voya Investment Management LLC | 127,007 | $49.8M | 0.05% | −3,510−2.7% | Reduced |
| Stifel Financial Corp | 132,293 | $51.8M | 0.05% | +1,523+1.2% | Added |
| Pictet Asset Management Holding SA | 135,379 | $53.0M | 0.06% | +2,124+1.6% | Added |
| O'Shaughnessy Asset Management, LLC | 136,102 | $53.3M | 0.27% | +29,230+27.4% | Added |
| LMR Partners LLP | 136,954 | $53.7M | 0.49% | +123,000+881.5% | Added |
| Alliancebernstein L.P. | 195,372 | $53.8M | 0.02% | −1,398−0.7% | Reduced |
| Walleye Capital LLC | 137,428 | $53.8M | 0.33% | +109,551+393.0% | Added |
| State of Wisconsin Investment Board | 137,549 | $53.9M | 0.12% | +8,895+6.9% | Added |
| Caisse de Depot Et Placement du Quebec | 139,103 | $54.5M | 0.09% | +23,506+20.3% | Added |
| Wedge Capital Management L L P | 141,881 | $55.6M | 1.03% | −65,250−31.5% | Reduced |
| NEOS Investment Management LLC | 146,758 | $57.5M | 0.29% | +52,487+55.7% | Added |
| Lansforsakringar Fondforvaltning AB (publ) | 148,559 | $58.2M | 0.30% | −43,551−22.7% | Reduced |
| Virginia Retirement Systems Et Al | 148,900 | $58.3M | 0.43% | −50,900−25.5% | Reduced |
| PFA Pension, Forsikringsaktieselskab | 156,607 | $61.4M | 0.18% | +71,340+83.7% | Added |
| Handelsbanken Fonder AB | 164,253 | $64.3M | 0.21% | +50,360+44.2% | Added |
| Neuberger Berman Group LLC | 166,523 | $65.2M | 0.05% | +63,442+61.5% | Added |
| Mirae Asset Global Investments Co., Ltd. | 169,194 | $66.3M | 0.19% | +64,063+60.9% | Added |
| Susquehanna International Group, LLP | 170,188 | $66.7M | 0.09% | +25,047+17.3% | Added |
| Hawk Ridge Capital Management LP | 173,300 | $67.9M | 2.47% | −27,604−13.7% | Reduced |
| Korea Investment CORP | 179,545 | $70.3M | 0.15% | −49,030−21.5% | Reduced |
| Mackenzie Financial Corp | 179,702 | $70.4M | 0.08% | +16,394+10.0% | Added |
| Federated Hermes, Inc. | 180,883 | $70.9M | 0.12% | −43,726−19.5% | Reduced |
| Artemis Investment Management LLP | 182,764 | $71.6M | 0.76% | −310,720−63.0% | Reduced |
| Aviva PLC | 183,148 | $71.8M | 0.12% | +5,378+3.0% | Added |
| Standard Life Aberdeen plc | 184,195 | $72.2M | 0.12% | +5,377+3.0% | Added |
| Adage Capital Partners GP, L.L.C. | 185,400 | $72.6M | 0.11% | +18,199+10.9% | Added |
| New York State Teachers Retirement System | 185,709 | $72.8M | 0.15% | −1,335−0.7% | Reduced |
| Teacher Retirement System of Texas | 190,131 | $74.5M | 0.31% | +54,394+40.1% | Added |
| Oxbow Capital Management (HK) Ltd | 190,213 | $74.5M | 20.09% | −124,411−39.5% | Reduced |
| Victory Capital Management Inc | 195,670 | $76.7M | 0.05% | −10,940−5.3% | Reduced |
| Woodline Partners LP | 207,507 | $81.3M | 0.31% | +115,389+125.3% | Added |
| Trivest Advisors Ltd | 208,000 | $81.5M | 5.87% | −116,000−35.8% | Reduced |
| Storebrand Asset Management AS | 212,787 | $83.4M | 0.24% | −26,945−11.2% | Reduced |
| Natixis Advisors, L.P. | 213,997 | $83.8M | 0.12% | +58,990+38.1% | Added |
| M&G Plc | 221,909 | $87.0M | 0.45% | −92,479−29.4% | Reduced |
| Allianz Asset Management GmbH | 227,373 | $89.1M | 0.10% | −54,610−19.4% | Reduced |
| Rhumbline Advisers | 229,211 | $89.8M | 0.08% | −7,386−3.1% | Reduced |
| HRT Financial LP | 229,531 | $89.9M | 0.22% | +229,531 | New |
| Primecap Management Co | 230,332 | $90.2M | 0.07% | −153,950−40.1% | Reduced |
| National Bank of Canada | 233,324 | $91.4M | 0.09% | −1,678−0.7% | Reduced |
| Principal Financial Group Inc | 243,641 | $95.4M | 0.05% | +743+0.3% | Added |
| KBC Group NV | 245,061 | $96.0M | 0.24% | −393,552−61.6% | Reduced |
| SEI Investments Co | 247,152 | $96.8M | 0.09% | −52,480−17.5% | Reduced |
| Colony Group, LLC | 249,280 | $97.9M | 0.11% | −79,112−24.1% | Reduced |
| Millennium Management LLC | 250,279 | $98.0M | 0.07% | +168,698+206.8% | Added |
| Ensign Peak Advisors, Inc | 255,726 | $100.2M | 0.19% | +43,358+20.4% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 261,845 | $102.6M | 0.17% | −31,167−10.6% | Reduced |
| LPL Financial LLC | 265,906 | $104.2M | 0.03% | +18,619+7.5% | Added |
| Squarepoint Ops LLC | 268,866 | $105.3M | 0.23% | −279,992−51.0% | Reduced |
| Amanah Holdings Trust | 289,774 | $113.5M | 12.50% | 00.0% | Unchanged |
| Palestra Capital Management LLC | 294,000 | $115.2M | 4.52% | +294,000 | New |
| Connor, Clark & Lunn Investment Management Ltd. | 298,197 | $116.8M | 0.27% | −79,982−21.1% | Reduced |
| Envestnet Asset Management Inc | 305,144 | $119.5M | 0.03% | +30,939+11.3% | Added |
| California State Teachers Retirement System | 307,293 | $120.4M | 0.13% | −930.0% | Reduced |
| Renaissance Technologies LLC | 310,494 | $121.6M | 0.19% | −71,399−18.7% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 311,448 | $121.9M | 0.17% | +18,766+6.4% | Added |
| ProShare Advisors LLC | 318,510 | $124.8M | 0.18% | −62,344−16.4% | Reduced |
| Wells Fargo & Company | 325,412 | $127.5M | 0.03% | −41,340−11.3% | Reduced |