Latest Period
Q1 2026
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
1,422
Shares (Excl. Options)
184,593,245
Price
$391.76
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- Type / Class
- Equity / Common Stock
- Symbol
- STX on Nasdaq
- Shares outstanding
- 218,166,070
- Price per share
- $643.30
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 184,593,245
- Total reported value
- $71,967,386,779
- % of total 13F portfolios
- 0.06%
- Share change
- -3,377,982
- Value change
- -$885,953,809
- Number of holders
- 1,422
- Price from insider filings
- $643.30
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- STX - Seagate Technology Holdings plc - Common Stock is tracked under CUSIP G7997R103.
- 1422 institutions reported positions in Q1 2026.
- 6 significant owners is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 1,256 to 1,422 between Q4 2025 and Q1 2026.
- Reported value moved from $52,039,350,967 to $71,967,386,779.
Research use
- 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.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 1422 institutions filings for Q1 2026.
Security key
G7997R103
Latest holder period
Q1 2026
13F holders
1,422
13D/G owners
6
CIK / CUSIP context first
Open Q1 2026 holders
STX full holder history
Seagate Technology Holdings plc SEC filings
Seagate Technology Holdings plc company facts
Seagate Technology Holdings plc insider transactions
Broader feeds
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 Mar 2026, 1,422 institutional investors reported holding 184,593,245 shares of Seagate Technology Holdings plc - Common Stock (STX). This represents 85% 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 59% 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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 6.5% | 14,274,083 | -11% | 0.1% | $5,592,014,773 |
| VANGUARD CAPITAL MANAGEMENT LLC | 6.5% | 14,155,673 | 0% | 0.14% | $5,545,626,455 |
| Sanders Capital, LLC | 5.9% | 12,897,201 | -25% | 6% | $5,052,607,464 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.1% | 11,094,908 | 0% | 0.23% | $4,346,541,158 |
| STATE STREET CORP | 4.3% | 9,321,632 | -0.52% | 0.13% | $3,658,717,865 |
| FMR LLC | 3.7% | 8,176,918 | +117% | 0.17% | $3,203,389,081 |
| JPMORGAN CHASE & CO | 3.1% | 6,659,239 | -4.8% | 0.16% | $2,413,508,563 |
| Capital Research Global Investors | 2.6% | 5,736,070 | +27% | 0.35% | $2,247,162,783 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.3% | 5,060,828 | +3.3% | 0.12% | $1,979,053,372 |
| MORGAN STANLEY | 2.2% | 4,759,312 | -10% | 0.11% | $1,864,509,052 |
| WCM INVESTMENT MANAGEMENT, LLC | 2% | 4,346,852 | -16% | 3.6% | $1,575,429,570 |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 1.7% | 3,620,072 | -33% | 1.3% | $1,418,199,406 |
| GOLDMAN SACHS GROUP INC | 1.6% | 3,573,790 | +30% | 0.18% | $1,400,068,128 |
| FRANKLIN RESOURCES INC | 1.6% | 3,518,195 | -13% | 0.34% | $1,378,288,148 |
| BANK OF AMERICA CORP /DE/ | 1.5% | 3,380,440 | -21% | 0.1% | $1,324,321,093 |
| Invesco Ltd. | 1.2% | 2,599,850 | +1.6% | 0.16% | $1,018,517,202 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 1.2% | 2,534,132 | +26% | 0.36% | $1,004,233,267 |
| NORTHERN TRUST CORP | 0.87% | 1,896,993 | -0.19% | 0.1% | $743,165,977 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 0.83% | 1,804,383 | +36717% | 1.2% | $706,885,000 |
| DEUTSCHE BANK AG\ | 0.81% | 1,759,174 | +10% | 0.23% | $689,174,007 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.7% | 1,534,212 | +3.6% | 0.12% | $601,042,893 |
| Legal & General Group Plc | 0.69% | 1,514,617 | -0.62% | 0.14% | $593,366,357 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 0.66% | 1,433,495 | -55% | 0.3% | $561,586,001 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 0.63% | 1,364,839 | -0.94% | 0.08% | $534,689,327 |
| D. E. Shaw & Co., Inc. | 0.59% | 1,289,573 | +62% | 0.4% | $505,203,118 |
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 | 184,593,245 | $71,967,386,779 | -$885,953,809 | $391.76 | 1,422 |
| 2025 Q4 | 188,900,389 | $52,039,350,967 | -$1,132,331,056 | $275.39 | 1,256 |
| 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 |