Seagate Technology
STX
660.81
+21.80
+3.41%
Seagate Technology
US · STX
#99 by market cap
Listed 1970
660.81
+21.80
+3.41%
Live - 5344 symbols - heartbeat 80s ago
· 2026-10-20 06:38
✦ Quant Ownership Signal how this is computed
Distributing
- The number of reporting institutions increased by 5 in the most recent period (2026/Q3).
- Total institutional ownership fell 0.9 percentage points.
Institutional ownership
- Held by institutions
- 85.23% -0.90pp
- Institutions
- 2,273 +5
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
DivergingInstitutions trimmed shares last reporting period, and the stock has seen net inflows in main-fund flow over the last 20 trading sessions - the two are pointing in different directions.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Mutual Fund66.70%
Hedge Fund6.84%
Public Company5.02%
Private Company2.31%
Government Pension Fund2.04%
Sovereign Wealth Fund1.45%
Family Office/Trust0.30%
Individual/Insider0.26%
VC/PE Fund0.24%
Other14.84%
Top holders as of 2026-06-30
Vanguard Capital Management, LLC
6.98% · 15.86M sh
BlackRock
6.67% · 15.17M sh
State Street Global Advisors
4.36% · 9.91M sh
Vanguard Portfolio Management, LLC
3.52% · 8.00M sh
Invesco Capital Management LLC
3.23% · 7.34M sh
FMR
3.13% · 7.12M sh
Other
75.25%
Capital Research
2.43% · 5.52M sh
WCM Investment Management
2.34% · 5.32M sh
Geode Capital Management, LLC
2.27% · 5.16M sh
Sanders Capital, LLC
1.53% · 3.49M sh
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 14 buys · 36 sells
| Name | Role | Stake |
|---|---|---|
| William Mosley | Chief Executive Officer | 0.16% |
| Gianluca Romano | Chief Financial Officer | 0.03% |
| Richard Clemmer | Independent Director | 0.01% |
| Kian Chong | Officer | 0.01% |
| John Morris | Chief Technology Officer | 0.01% |
| Dylan Haggart | Independent Director | 0.01% |
| Judy Bruner | Independent Director | 0.01% |
| Michael Cannon | Independent Chairperson | 0.01% |
| Pratik Bhatt | Independent Director | 0.01% |
| Stephanie Schear-Tilenius | Independent Director | 0.00% |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-09-30 | William Mosley | Chairperson & CEO | Automatic Disposition | -360 | $929.01 |
| 2026-09-30 | William Mosley | Chairperson & CEO | Derivative Exercise and Sale | -14,000 | $46.23–921.64 |
| 2026-09-20 | John Morris | Executive Vice President | Open Market Disposition | -8,439 | $871.56–902.07 |
| 2026-09-20 | John Morris | Executive Vice President | Derivative Exercise and Sale | -915 | $158.40–871.56 |
| 2026-09-14 | William Mosley | Chairperson & CEO | Derivative Exercise and Sale | -97,889 | $772.14 |
| 2026-09-14 | William Mosley | Chairperson & CEO | Intent to Sell (Form 144) | -102,784 | $772.14 |
| 2026-09-14 | Ban Teh | Executive Vice President | Derivative Exercise and Sale | -52,730 | $771.38–800.47 |
| 2026-09-14 | Ban Teh | Executive Vice President | Intent to Sell (Form 144) | -52,730 | $782.08 |
| 2026-09-14 | Gianluca Romano | Chief Financial Officer | Derivative Exercise and Sale | -49,983 | $772.16 |
| 2026-09-14 | Gianluca Romano | Chief Financial Officer | Intent to Sell (Form 144) | -52,483 | $772.15 |
| 2026-09-14 | John Morris | Executive Vice President | Derivative Exercise and Sale | -15,465 | $772.15 |
| 2026-09-14 | John Morris | Executive Vice President | Intent to Sell (Form 144) | -16,239 | $772.14 |
| 2026-09-13 | William Mosley | Chairperson & CEO | Derivative Exercise and Sale | -1,869 | $781.23 |
| 2026-09-13 | William Mosley | Chairperson & CEO | Derivative Exercise and Retained | +79,110 | -- |
| 2026-09-13 | Ban Teh | Executive Vice President | Derivative Exercise and Sale | -989 | $779.00 |
| 2026-09-13 | Ban Teh | Executive Vice President | Intent to Sell (Form 144) | -989 | $779.00 |
| 2026-09-13 | Gianluca Romano | Chief Financial Officer | Derivative Exercise and Sale | -955 | $781.24 |
| 2026-09-13 | Gianluca Romano | Chief Financial Officer | Derivative Exercise and Retained | +40,396 | -- |
| 2026-09-13 | John Morris | Executive Vice President | Derivative Exercise and Sale | -492 | $781.23 |
| 2026-09-13 | John Morris | Executive Vice President | Derivative Exercise and Retained | +14,664 | -- |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-20 06:38:12 · For reference only, not investment advice and not tailored to your situation.
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