Seagate Technology Ownership | Who Owns Seagate Technology?
Seagate Technology Ownership Summary
Seagate Technology is owned by 47.60% institutional investors, 0.28% insiders, and 52.12% retail investors. Vanguard group is the largest institutional shareholder, holding 13.08% of STX shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.14% of its assets in Seagate Technology shares.
STX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Seagate Technology | 47.60% | 0.28% | 52.12% |
| Sector | Technology Stocks | 35.30% | 13.07% | 51.63% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Vanguard group | 28.12M | 13.08% | $7.74B |
| Sanders capital | 17.54M | 8.27% | $4.14T |
| Blackrock funding, inc. /de | 16.12M | 7.50% | $4.44B |
| Blackrock | 13.24M | 6.31% | $1.37B |
| State street | 9.28M | 4.38% | $2.20B |
| Jpmorgan chase | 7.00M | 3.25% | $1.93B |
| Morgan stanley | 5.32M | 2.47% | $1.46B |
| Wcm investment management | 5.15M | 2.40% | $1.44B |
| Geode capital management | 4.90M | 2.28% | $1.34B |
| Capital research global investors | 4.51M | 2.10% | $1.24B |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Oxbow capital management (hk) | 443.00K | 18.32% | $104.57M |
| Central asset investments & management (hk) | 88.22K | 15.79% | $24.30M |
| Atalan capital partners, lp | 746.60K | 12.30% | $176.24M |
| Rivermont capital management lp | 150.21K | 9.37% | $35.46M |
| Aufman associates | 65.56K | 9.25% | $18.05M |
| Maple rock capital partners | 740.35K | 6.90% | $174.77M |
| Twin lakes capital management | 51.85K | 6.34% | $14.28M |
| Apis capital advisors | 114.30K | 5.96% | $26.98M |
| Panoramic capital | 50.98K | 5.41% | $12.03M |
| Avala global lp | 533.43K | 5.20% | $125.92M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Arrowstreet capital, limited partnership | 2.95M | 0.44% | 2.70M |
| Massachusetts financial services co /ma/ | 2.01M | 0.18% | 1.88M |
| Norges bank | 1.81M | 0.05% | 1.81M |
| Blackrock funding, inc. /de | 16.12M | 0.07% | 1.72M |
| Dz bank ag deutsche zentral genossenschafts bank, frankfurt am main | 989.76K | 0.20% | 989.76K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Jpmorgan chase | 7.00M | 0.12% | -6.93M |
| Fmr | 1.98M | 0.02% | -4.43M |
| Franklin resources | 4.03M | 0.27% | -4.04M |
| Balyasny asset management | 5.91K | 0.00% | -2.04M |
| Slate path capital lp | 658.87K | 2.41% | -1.69M |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Norges bank | 1.81M | 0.05% | 1.81M | $498.36M |
| Dz bank ag deutsche zentral genossenschafts bank, frankfurt am main | 989.76K | 0.20% | 989.76K | $233.64M |
| Oxbow capital management (hk) | 443.00K | 18.32% | 443.00K | $104.57M |
| Blue whale capital llp | 221.71K | 2.89% | 221.71K | $52.34M |
| Rivermont capital management lp | 150.21K | 9.37% | 150.21K | $35.46M |
Sold Out
| Holder | Change |
|---|---|
| Atticus wealth management | -1.00 |
| Mine & arao wealth creation & management, llc. | -2.00 |
| Colonial trust advisors | -2.00 |
| Private wealth management group | -2.00 |
| Tortoise investment management | -2.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 31, 2025 | 843 | -29.46% | 102,334,177 | -47.00% | 47 | 0.57% | 441 | -31.42% | 262 | -19.38% |
| Sep 30, 2025 | 747 | -24.32% | 88,296,573 | -52.90% | 41 | 0.53% | 405 | -25.28% | 205 | -25.72% |
| Jun 30, 2025 | 988 | 18.47% | 197,905,798 | 0.12% | 93 | 1.07% | 543 | 42.52% | 273 | -2.85% |
| Mar 31, 2025 | 24 | -97.18% | 3,143,706 | -98.35% | 1 | 0.02% | 7 | -98.34% | 6 | -97.79% |
| Dec 31, 2024 | 443 | -48.19% | 77,071,414 | -58.56% | 36 | 0.47% | 219 | -46.19% | 148 | -43.73% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| Vanguard US Total Market Shares ETF | 6.64M | 3.14% | 5.13K |
| Vanguard Total Stock Mkt Idx Inv | 6.72M | 3.00% | 19.14K |
| Vanguard Institutional 500 Index Trust | 6.02M | 2.84% | 42.35K |
| Vanguard 500 Index Investor | 5.55M | 2.48% | 34.18K |
| Vanguard Mid Cap Index Institutional | 4.63M | 2.06% | -24.10K |
| American Funds Income Fund of Amer A | 4.36M | 2.06% | -208.21K |
| Invesco QQQ Trust | 4.57M | 2.04% | -10.12K |
| Vanguard Windsor™ II Inv | 3.96M | 1.86% | - |
| JPM US Equity Income-Composite | 3.77M | 1.77% | -249.54K |
| Vanguard Windsor II Inv | 3.85M | 1.72% | -109.10K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Mar 02, 2026 | MOSLEY WILLIAM D | CEO | Sell | $659.86K |
| Mar 02, 2026 | MOSLEY WILLIAM D | CEO | Sell | $122.80K |
| Mar 02, 2026 | MOSLEY WILLIAM D | CEO | Sell | $302.36K |
| Mar 02, 2026 | MOSLEY WILLIAM D | CEO | Sell | $328.49K |
| Mar 02, 2026 | MOSLEY WILLIAM D | CEO | Sell | $479.33K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q1 | - | 56 |
| 2025 Q4 | - | 83 |
| 2025 Q3 | - | 37 |
| 2025 Q2 | - | 34 |
| 2025 Q1 | - | 10 |
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