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, Q4 2025
Institutional positions in Seagate Technology Holdings plc as of Dec 31, 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
- 1,280
- +170 vs. Q3 2025
- Shares held
- 194.4M
- +515.6K (+0.3%) vs. Q3 2025
- Total value
- $53.5B
- +$7.82B (+17.1%) vs. Q3 2025
- New holders
- 256
- 448 more added
- Sold out
- 86
- 408 more reduced
16 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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 | 1,472 | $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, Q4 2025
Shares, value and share of portfolio for each institution holding Seagate Technology Holdings plc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Advisors Capital Management, LLC | 181,266 | $49.9M | 0.59% | −14,155−7.2% | Reduced |
| Standard Life Aberdeen plc | 178,818 | $49.2M | 0.08% | +117+0.1% | Added |
| Aviva PLC | 177,770 | $49.0M | 0.08% | +9,260+5.5% | Added |
| HSBC Holdings PLC | 172,331 | $47.6M | 0.03% | +85,246+97.9% | Added |
| Jefferies Financial Group Inc. | 171,077 | $47.1M | 0.39% | +170,723+48,226.8% | Added |
| Adage Capital Partners GP, L.L.C. | 167,201 | $46.0M | 0.07% | +87,100+108.7% | Added |
| Mackenzie Financial Corp | 163,308 | $45.6M | 0.05% | −31,368−16.1% | Reduced |
| Colony Capital, Inc. | 164,192 | $45.2M | 3.49% | −34,263−17.3% | Reduced |
| Natixis Advisors, L.P. | 155,007 | $42.7M | 0.06% | +20,524+15.3% | Added |
| Blue Whale Capital LLP | 148,274 | $40.8M | 2.10% | −73,431−33.1% | Reduced |
| Susquehanna International Group, LLP | 145,141 | $40.0M | 0.05% | −410,961−73.9% | Reduced |
| Quantinno Capital Management LP | 136,483 | $37.6M | 0.08% | +6,161+4.7% | Added |
| Teacher Retirement System of Texas | 135,737 | $37.4M | 0.13% | +101,266+293.8% | Added |
| Deroy & Devereaux Private Investment Counsel Inc | 134,949 | $37.2M | 1.81% | −3,480−2.5% | Reduced |
| Manufacturers Life Insurance Company, The | 134,812 | $37.1M | 0.03% | +4,939+3.8% | Added |
| Pictet Asset Management Holding SA | 133,255 | $36.7M | 0.04% | +4,553+3.5% | Added |
| Hallmark Capital Management Inc | 132,446 | $36.5M | 2.34% | −7,469−5.3% | Reduced |
| Stifel Financial Corp | 130,770 | $36.0M | 0.03% | −30,478−18.9% | Reduced |
| Voya Investment Management LLC | 130,517 | $35.9M | 0.04% | +16,384+14.4% | Added |
| Wellington Management Group LLP | 129,616 | $35.7M | 0.01% | +8,904+7.4% | Added |
| State of Wisconsin Investment Board | 128,654 | $35.4M | 0.08% | −4,590−3.4% | Reduced |
| Value Aligned Research Advisors, LLC | 126,282 | $34.8M | 0.71% | +126,282 | New |
| Rivermont Capital Management LP | 116,496 | $32.1M | 7.62% | −33,715−22.4% | Reduced |
| Caisse de Depot Et Placement du Quebec | 115,597 | $31.8M | 0.05% | +115,597 | New |
| Handelsbanken Fonder AB | 113,893 | $31.4M | 0.09% | −15,428−11.9% | Reduced |
| Man Group plc | 113,880 | $31.4M | 0.06% | +80,095+237.1% | Added |
| Tredje AP-fonden | 111,339 | $30.7M | 0.23% | +90,968+446.6% | Added |
| Rafferty Asset Management, LLC | 110,977 | $30.6M | 0.11% | +37,133+50.3% | Added |
| Chevy Chase Trust Holdings, Inc. | 110,468 | $30.4M | 0.08% | +1,723+1.6% | Added |
| Cetera Investment Advisers | 109,603 | $30.2M | 0.03% | −5,212−4.5% | Reduced |
| State of Tennessee, Treasury Department | 72,917 | $29.7M | 0.10% | +2,075+2.9% | Added |
| Danske Bank A/S | 107,030 | $29.5M | 0.07% | −7,274−6.4% | Reduced |
| O'Shaughnessy Asset Management, LLC | 106,872 | $29.4M | 0.16% | +18,745+21.3% | Added |
| Talos Asset Management LP | 105,800 | $29.1M | 5.16% | −6,600−5.9% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 105,131 | $29.0M | 0.08% | +76,695+269.7% | Added |
| APG Asset Management N.V. | 122,873 | $28.8M | 0.08% | −2,755−2.2% | Reduced |
| TD Asset Management Inc | 103,198 | $28.4M | 0.02% | +11,749+12.8% | Added |
| Neuberger Berman Group LLC | 103,081 | $28.4M | 0.02% | −25,290−19.7% | Reduced |
| CCM Investment Advisers LLC | 102,281 | $28.2M | 2.70% | −13,714−11.8% | Reduced |
| ARS Investment Partners, LLC | 101,172 | $27.9M | 1.63% | −3,215−3.1% | Reduced |
| Hosking Partners LLP | 98,152 | $27.0M | 0.92% | −11,128−10.2% | Reduced |
| Kinetic Partners Management, LP | 95,200 | $26.2M | 1.27% | −5,100−5.1% | Reduced |
| NEOS Investment Management LLC | 94,271 | $26.0M | 0.15% | +78,306+490.5% | Added |
| Asset Management One Co.,Ltd. | 90,912 | $25.6M | 0.07% | +480+0.5% | Added |
| Apis Capital Advisors, LLC | 92,400 | $25.4M | 4.43% | −21,900−19.2% | Reduced |
| Royal London Asset Management Ltd | 92,262 | $25.4M | 0.05% | +3,809+4.3% | Added |
| Woodline Partners LP | 92,118 | $25.4M | 0.10% | +38,470+71.7% | Added |
| CIBC Asset Management Inc | 90,130 | $24.8M | 0.06% | +56,233+165.9% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 89,973 | $24.8M | 0.06% | +2,982+3.4% | Added |
| Janney Montgomery Scott LLC | 89,911 | $24.8M | 0.06% | −2,303−2.5% | Reduced |
| Nomura Asset Management Co Ltd | 88,415 | $24.3M | 0.06% | +8,207+10.2% | Added |
| Central Asset Investments & Management Holdings (HK) Ltd | 88,224 | $24.3M | 15.79% | +66,399+304.2% | Added |
| Swiss Life Asset Management Ltd | 86,735 | $23.9M | 0.12% | −133,711−60.7% | Reduced |
| PFA Pension, Forsikringsaktieselskab | 85,267 | $23.9M | 0.07% | +85,267 | New |
| Walleye Trading LLC | 85,237 | $23.5M | 0.38% | −673,929−88.8% | Reduced |
| Millennium Management LLC | 81,581 | $22.5M | 0.02% | −694,605−89.5% | Reduced |
| KLP Kapitalforvaltning AS | 78,895 | $21.8M | 0.08% | +2,200+2.9% | Added |
| Hancock Whitney Corp | 78,242 | $21.5M | 0.39% | +136+0.2% | Added |
| Liontrust Investment Partners LLP | 75,843 | $20.9M | 0.31% | −67,721−47.2% | Reduced |
| Boothbay Fund Management, LLC | 75,468 | $20.8M | 0.55% | −34,066−31.1% | Reduced |
| GF Fund Management Co. Ltd. | 75,137 | $20.7M | 0.35% | +15,337+25.6% | Added |
| Zweig-DiMenna Associates LLC | 75,001 | $20.7M | 1.47% | −1,224−1.6% | Reduced |
| Davidson Kempner Capital Management LP | 75,000 | $20.7M | 0.30% | +75,000 | New |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 74,229 | $20.5M | 0.02% | +74,229 | New |
| HighTower Advisors, LLC | 73,728 | $20.3M | 0.02% | −188−0.3% | Reduced |
| State of New Jersey Common Pension Fund D | 73,431 | $20.2M | 0.07% | −975−1.3% | Reduced |
| Delta Global Management LP | 73,120 | $20.1M | 1.47% | +73,120 | New |
| Commonwealth Equity Services, LLC | 72,905 | $20.1M | 0.03% | −7,732−9.6% | Reduced |
| Keystone Investors Pte Ltd | 70,051 | $19.3M | 1.73% | +19,730+39.2% | Added |
| Rheos Capital Works Inc. | 70,000 | $19.3M | 1.24% | +70,000 | New |
| Mariner, LLC | 68,594 | $18.9M | 0.02% | +19,651+40.2% | Added |
| Macquarie Group Ltd | 67,941 | $18.7M | 0.08% | +7,304+12.0% | Added |
| Aufman Associates Inc | 65,559 | $18.1M | 9.25% | −4,833−6.9% | Reduced |
| Aquatic Capital Management LLC | 64,354 | $17.7M | 0.50% | −119,093−64.9% | Reduced |
| Keystone Financial Group | 62,817 | $17.3M | 1.28% | −4,971−7.3% | Reduced |
| Potrero Capital Research LLC | 61,600 | $17.0M | 5.71% | −20,500−25.0% | Reduced |
| The PNC Financial Services Group, Inc. | 61,270 | $16.9M | 0.01% | +3,091+5.3% | Added |
| Verition Fund Management LLC | 61,202 | $16.9M | 0.09% | −6,960−10.2% | Reduced |
| Robeco Institutional Asset Management B.V. | 60,142 | $16.6M | 0.02% | +48,062+397.9% | Added |
| La Banque Postale Asset Management SA | 60,114 | $16.6M | 0.19% | −24,305−28.8% | Reduced |
| Parkwood LLC | 59,374 | $16.4M | 1.39% | +59,374 | New |
| Creative Planning | 58,824 | $16.2M | 0.01% | +2,684+4.8% | Added |
| Nisa Investment Advisors, LLC | 58,613 | $16.2M | 0.05% | +4,612+8.5% | Added |
| Arizona State Retirement System | 58,493 | $16.1M | 0.09% | −4,104−6.6% | Reduced |
| FIL Ltd | 57,773 | $15.9M | 0.01% | +18,839+48.4% | Added |
| Czech National Bank | 57,449 | $15.8M | 0.10% | +3,433+6.4% | Added |
| State of Michigan Retirement System | 57,005 | $15.7M | 0.08% | −500−0.9% | Reduced |
| Nomura Holdings Inc | 56,431 | $15.5M | 0.04% | −4,506−7.4% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 56,229 | $15.5M | 0.03% | +911+1.6% | Added |
| Advisor Group Holdings, Inc. | 55,268 | $15.2M | 0.02% | −32,391−37.0% | Reduced |
| Cerity Partners LLC | 54,912 | $15.1M | 0.02% | +8,370+18.0% | Added |
| Public Sector Pension Investment Board | 54,717 | $15.1M | 0.05% | +32,243+143.5% | Added |
| Pacer Advisors, Inc. | 54,495 | $15.0M | 0.04% | +16,496+43.4% | Added |
| Daiwa Securities Group Inc. | 54,073 | $14.9M | 0.05% | +17,752+48.9% | Added |
| Panoramic Capital, LLC | 53,876 | $14.8M | 8.49% | +2,895+5.7% | Added |
| Resona Asset Management Co.,Ltd. | 53,756 | $14.8M | 0.07% | −3,988−6.9% | Reduced |
| Forsta Ap-Fonden | 53,000 | $14.6M | 0.09% | +6,900+15.0% | Added |
| Intech Investment Management LLC | 52,968 | $14.6M | 0.13% | +46,502+719.2% | Added |
| KWMG, LLC | 52,930 | $14.6M | 1.26% | −9,194−14.8% | Reduced |
| Fred Alger Management, LLC | 52,350 | $14.4M | 0.06% | +10,833+26.1% | Added |