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Seagate Technology STX

US equityMarket cap rank #72Computer HardwareData storage stock
$905.06
−$18.06 (-1.96%)
Market open · Sep 24, 2:00 pm ET
After hours $923.85 0.00%
Open$914.66
Prev close$923.12
Day range$903.12 – $926.01
Volume1.74M
Market cap$205.80B
P/E (TTM)65.1
Dividend yield0.32%

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership85.5%-0.49 pts vs. prior quarter
Institutions holding2,239-1 vs. prior quarter
Insider trades (recent)6 buys / 9 sellsNet selling
Short interest3.74% of floatDays to cover 2.4 · as of 31 Aug 2026
Short-sale volume share7.7%5-day average of daily volume

Short-sale volume as % of daily volume

4%7%10%12%Aug '26Sep '26Sep '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$128.25M (5 inflow days, 15 outflow days).

Largest holders

  • Vanguard Capital Management, LLC6.98%
  • BlackRock6.67%
  • State Street Global Advisors4.36%
  • Vanguard Portfolio Management, LLC3.52%
  • Invesco Capital Management LLC3.23%

By investor type

  • Mutual Fund66.97%
  • Hedge Fund6.85%
  • Public Company5.01%
  • Private Company2.31%
  • Government Pension Fund2.05%
  • Sovereign Wealth Fund1.45%
  • Family Office/Trust0.30%
  • VC/PE Fund0.21%
Institutional holders2,239
Institutional ownership85.5%

Insider activity

Total transactions18
Bought6
Sold9

Short interest

Report dateShares short% of floatDays to cover
31 Aug 2026 8,482,797 3.7% 2.4
14 Aug 2026 8,161,824 3.6% 1.7
31 Jul 2026 8,047,106 3.5% 1.3
15 Jul 2026 7,342,100 3.3% 1.7
30 Jun 2026 6,584,569 2.9% 1.1
15 Jun 2026 8,446,780 3.8% 2.6
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