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Stanley Druckenmiller's Seagate Technology Holdings plc (STX) position

Yes: as of Q1 2026, Stanley Druckenmiller holds 51K shares of STX worth $20M (0.7% of the disclosed portfolio). Last quarter the position was opened. First disclosed Q3 2023.
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Current value
$20M
Shares held
51K
% of portfolio
0.7%
Est. average buy price (i)
$382.55
Quarter-end price
$391.76

Estimated trade prices

Average price in quarters with purchases
$79.53
Average prices in quarters with sales
  • Q3 2025: $170.47 (112K shares sold)
  • Q2 2025: $103.52 (22K shares sold)
  • Q1 2025: $94.51 (1.3M shares sold)
  • Q4 2024: $100.67 (76K shares sold)
  • Q3 2024: $102.25 (115K shares sold)
  • Q1 2024: $87.94 (677K shares sold)

STX price vs Druckenmiller's position

Dates
$100$500$1,000$1,5002026Sold 112K shares (56.5%) · Q3 2025. Average closing price $170.47 · Price range $142.01–$236.06112KsharessoldNew position of 51K shares · Q1 2026. Average closing price $382.55 · Price range $280.70–$449.6851Ksharespurchased← Earlier —3 purchases, 5 sells
Average closing price · filing quarter
$382.55
Price range · filing quarter
$280.70 – $449.68

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 New +51K +$19M 51K May 15, 2026
Q3 2025 Reduced −112K −$19M −56.5% 86K Nov 14, 2025
Q2 2025 Reduced −22K −$2.3M −10.0% 197K Aug 15, 2025
Q1 2025 Reduced −1.3M −$127M −86.0% 219K May 15, 2025
Q4 2024 Reduced −76K −$7.7M −4.7% 1.6M Feb 14, 2025
Q3 2024 Reduced −115K −$12M −6.5% 1.6M Nov 14, 2024
Q2 2024 Added +316K +$30M +22.0% 1.8M Aug 14, 2024
Q1 2024 Reduced −677K −$60M −32.0% 1.4M May 15, 2024
Q4 2023 Added +1.2M +$90M +131.3% 2.1M Feb 14, 2024
Q3 2023 New +915K +$59M 915K Nov 14, 2023
Data through Q1 2026 · filed May 15, 2026
10 grouped rows from 10 quarters

More Druckenmiller positions

Common questions

Does Stanley Druckenmiller own STX?

Yes. As of Q1 2026, Stanley Druckenmiller disclosed 51K shares of STX, worth $20M. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Stanley Druckenmiller buy STX?

Stanley Druckenmiller first disclosed a STX position in Q3 2023; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Stanley Druckenmiller sell STX?

The quarter-by-quarter table above shows each sale and reduction Stanley Druckenmiller disclosed in STX. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of STX does Stanley Druckenmiller own?

Stanley Druckenmiller disclosed 51K shares of STX as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Stanley Druckenmiller pay for STX?

Stanley Druckenmiller's estimated average buy price for STX is $382.55, from quarter-average prices weighted by the shares added each quarter. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.