Latest Period
Q4 2025
Security Snapshot
Seagate Technology Holdings plc - Common Stock (STX) Institutional Ownership
CUSIP: G7997R103
13F Institutional Holders and Ownership History from Q1 2016 to Q1 2026
Institutions Reporting
1,249
Shares (Excl. Options)
188,634,423
Price
$275.39
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- Type / Class
- Equity / Common Stock
- Symbol
- STX on Nasdaq
- Shares outstanding
- 218,166,070
- Price per share
- $513.28
- All holders as of 31 Dec 2025
- Q4 2025
- Total 13F shares
- 188,634,423
- Total reported value
- $51,966,106,612
- % of total 13F portfolios
- 0.04%
- Share change
- -4,506,945
- Value change
- -$1,134,560,354
- Number of holders
- 1,249
- Price from insider filings
- $513.28
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Quick Takeaways
- STX - Seagate Technology Holdings plc - Common Stock is tracked under CUSIP G7997R103.
- 1249 institutions reported positions in Q4 2025.
- 6 significant owners is listed from Schedule 13D/13G reporting.
What Changed
- Holder count moved from 1,249 to 541 between Q4 2025 and Q1 2026.
- Reported value moved from $51,966,106,612 to $3,231,025,221.
Why This Matters
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Source Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 1249 institutions filings for Q4 2025.
Investment Quick Answers
What is CUSIP G7997R103?
CUSIP G7997R103 identifies STX - Seagate Technology Holdings plc - Common Stock in SEC 13F datasets.
Where can I see the latest institutional holders?
Review the Q4 2025 holders report and the ownership history table below.
Next ownership checks
Use the next link that matches the question you still need to answer about this security.
- Latest 13F filings when you want to inspect fresh institutional portfolio moves.
- Latest Schedule 13D/13G reports when you need large-owner changes outside the 13F cycle.
- All institutional ownership pages to compare this security with other holder-history pages.
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP G7997R103:
Significant Owners of Seagate Technology Holdings plc - Common Stock (STX) based on Schedule 13D/G filings
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 7.5% | $6,393,061,707 | 16,318,822 | Vanguard Capital Management | 31 Mar 2026 | |||
| Sanders Capital, LLC | 6% | -33% | $5,106,700,638 | -$2,298,601,850 | 13,035,275 | -31% | Sanders Capital, LLC | 31 Mar 2026 |
| BlackRock, Inc. | 6.1% | $1,075,725,072 | 12,954,300 | BlackRock, Inc. | 31 Mar 2025 | |||
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.1% | $4,346,541,158 | 11,094,908 | Vanguard Portfolio Management | 31 Mar 2026 | |||
| JPMORGAN CHASE & CO | 4% | -27% | $2,043,010,541 | -$783,578,980 | 8,654,624 | -28% | JPMORGAN CHASE & CO. | 31 Oct 2025 |
| Capital Research Global Investors | 3.4% | -57% | $1,053,899,190 | -$1,203,358,719 | 7,293,420 | -53% | Capital Research Global Investors | 30 Jun 2025 |
As of 31 Dec 2025, 1,249 institutional investors reported holding 188,634,423 shares of Seagate Technology Holdings plc - Common Stock (STX). This represents 86% of the company’s total 218,166,070 outstanding shares.
Top 25 Institutional Shareholders
The largest institutional shareholders of Seagate Technology Holdings plc - Common Stock (STX) together control 63% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| VANGUARD GROUP INC | 13% | 28,119,431 | -0.07% | 0.11% | $7,743,810,104 |
| Sanders Capital, LLC | 7.9% | 17,180,892 | -2.1% | 5.4% | $4,731,445,848 |
| BlackRock, Inc. | 7.4% | 16,116,926 | +12% | 0.08% | $4,438,440,190 |
| STATE STREET CORP | 4.3% | 9,370,805 | +1% | 0.09% | $2,587,534,836 |
| JPMORGAN CHASE & CO | 3.2% | 6,997,975 | -50% | 0.13% | $1,927,172,718 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 2.5% | 5,416,242 | +447% | 1.3% | $1,491,578,884 |
| MORGAN STANLEY | 2.4% | 5,317,516 | +5.1% | 0.09% | $1,464,391,492 |
| WCM INVESTMENT MANAGEMENT, LLC | 2.4% | 5,154,872 | -0.54% | 3% | $1,443,776,642 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.2% | 4,896,815 | +5% | 0.08% | $1,343,682,936 |
| Capital Research Global Investors | 2.1% | 4,511,989 | -27% | 0.23% | $1,242,556,651 |
| BANK OF AMERICA CORP /DE/ | 2% | 4,280,605 | -44% | 0.09% | $1,178,836,003 |
| FRANKLIN RESOURCES INC | 1.8% | 4,026,126 | -50% | 0.27% | $1,108,754,931 |
| FMR LLC | 1.7% | 3,759,659 | +90% | 0.05% | $1,035,372,166 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1.5% | 3,193,063 | +8.3% | 0.52% | $879,337,620 |
| GOLDMAN SACHS GROUP INC | 1.3% | 2,755,671 | -26% | 0.11% | $758,884,218 |
| Invesco Ltd. | 1.2% | 2,558,925 | +41% | 0.11% | $704,702,348 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 0.92% | 2,008,516 | +1510% | 0.18% | $553,125,222 |
| NORTHERN TRUST CORP | 0.87% | 1,900,632 | -1% | 0.07% | $523,415,048 |
| NORGES BANK | 0.83% | 1,809,661 | 0.05% | $498,362,543 | |
| DEUTSCHE BANK AG\ | 0.73% | 1,599,962 | +102% | 0.14% | $440,613,535 |
| Legal & General Group Plc | 0.7% | 1,524,131 | -0.75% | 0.09% | $419,730,430 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.68% | 1,480,324 | +1.7% | 0.09% | $407,666,428 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.63% | 1,377,792 | +0.52% | 0.06% | $379,430,139 |
| Bank of New York Mellon Corp | 0.57% | 1,241,951 | +19% | 0.06% | $342,020,930 |
| Polar Capital Holdings Plc | 0.56% | 1,229,410 | -17% | 1.5% | $338,567,220 |
Institutional Holders of Seagate Technology Holdings plc - Common Stock (STX) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 8,241,004 | $3,231,025,221 | +$60,651,218 | $391.76 | 541 |
| 2025 Q4 | 188,634,423 | $51,966,106,612 | -$1,134,560,354 | $275.39 | 1,249 |
| 2025 Q3 | 193,065,949 | $45,534,953,646 | -$703,176,878 | $236.06 | 1,109 |
| 2025 Q2 | 198,303,508 | $28,623,121,850 | +$165,686,004 | $144.33 | 938 |
| 2025 Q1 | 197,975,305 | $16,816,730,653 | +$579,391,737 | $84.95 | 781 |
| 2024 Q4 | 190,944,216 | $16,490,696,630 | +$298,387,472 | $86.31 | 793 |
| 2024 Q3 | 185,559,221 | $20,326,929,703 | -$108,518,988 | $109.53 | 808 |
| 2024 Q2 | 186,034,687 | $19,213,706,213 | +$221,208,569 | $103.27 | 786 |
| 2024 Q1 | 183,669,460 | $17,091,466,222 | -$417,093,425 | $93.05 | 752 |
| 2023 Q4 | 189,039,415 | $16,142,137,882 | +$362,508,690 | $85.37 | 716 |
| 2023 Q3 | 185,047,646 | $12,210,697,589 | +$587,990,433 | $65.95 | 641 |
| 2023 Q2 | 175,617,730 | $10,875,100,616 | -$192,421,763 | $61.87 | 642 |
| 2023 Q1 | 179,751,253 | $11,889,176,772 | +$331,438,194 | $66.12 | 652 |
| 2022 Q4 | 175,067,791 | $9,216,833,638 | +$175,905,788 | $52.61 | 619 |
| 2022 Q3 | 171,957,786 | $9,166,285,500 | -$77,458,498 | $53.23 | 625 |
| 2022 Q2 | 172,173,749 | $12,308,601,774 | +$265,113,242 | $71.44 | 680 |
| 2022 Q1 | 168,171,646 | $15,118,395,260 | -$879,738,411 | $89.90 | 664 |
| 2021 Q4 | 177,311,403 | $20,028,653,773 | -$283,294,599 | $112.98 | 763 |
| 2021 Q3 | 180,053,969 | $14,860,206,796 | +$227,757,161 | $82.52 | 659 |
| 2021 Q2 | 177,500,660 | $15,598,767,579 | +$15,546,269,137 | $87.93 | 632 |
| 2021 Q1 | 51,779 | $4,012,012 | +$3,505,355 | $76.76 | 6 |
| 2020 Q4 | 6,169 | $459,872 | +$870 | $62.16 | 4 |
| 2020 Q3 | 5,727 | $397,542 | $49.27 | 3 | |
| 2020 Q2 | 5,877 | $406,176 | $60.87 | 4 | |
| 2020 Q1 | 5,727 | $396,249 | -$27,805 | $48.80 | 3 |
| 2019 Q4 | 6,198 | $453,447 | -$209,735 | $59.51 | 4 |
| 2019 Q3 | 10,052 | $645,496 | +$209,735 | $54.42 | 5 |
| 2019 Q2 | 6,198 | $413,439 | $47.12 | 4 | |
| 2019 Q1 | 6,198 | $416,554 | -$18,933 | $48.16 | 4 |
| 2018 Q4 | 3,613 | $139,007 | +$21,838 | $38.59 | 3 |
| 2018 Q3 | 3,040 | $143,739 | +$14,000 | $47.35 | 3 |
| 2018 Q2 | 2,740 | $154,728 | -$19,000 | $56.47 | 2 |
| 2018 Q1 | 3,065 | $179,345 | +$158,004 | $58.52 | 3 |
| 2017 Q4 | 365 | $15,674 | -$1,559 | $42.46 | 2 |
| 2017 Q3 | 412 | $13,886 | -$4,081 | $33.18 | 3 |
| 2017 Q2 | 533 | $20,186 | -$116 | $38.76 | 3 |
| 2017 Q1 | 536 | $25,099 | +$138 | $45.95 | 3 |
| 2016 Q4 | 533 | $20,122 | +$687 | $38.17 | 3 |
| 2016 Q3 | 425 | $16,000 | $37.65 | 1 | |
| 2016 Q2 | 425 | $10,000 | $23.53 | 1 | |
| 2016 Q1 | 425 | $15,000 | $35.29 | 1 |