Family Office · CIK 0001536411
Stanley Druckenmiller
Duquesne
Stanley Druckenmiller runs Duquesne, a family office overseeing $4.5M in disclosed equity holdings (SEC CIK 0001536411). The latest 13F filing (2025Q4) discloses 58 positions across 9 sectors, with the largest positions in NTRA, XLF and INSM. On a mark-to-market basis the tracked portfolio has returned 210.5% since 2016Q1. OpenStocks tracks 40 consecutive 13F filings for this manager — every position change, new entry, and exit is logged below.
Portfolio
$4.49M
Positions
58
Quarter
2025Q4
Filings tracked
40
Holdings
Sorted by value · 2023Q4
50 positions
Avg buy
$7.70
2016Q1
Current
$422.79
Return
+5391.1%
Last action
Exited
2025Q3
1,086,120 sh
$408.4K
Avg buy
$18.21
2021Q1
Current
$21.49
Return
+18.0%
Last action
Added 10.3%
2025Q4
22,914,940 sh
$371.0K
Avg buy
$65.98
2016Q2
Current
$200.57
Return
+204.0%
Last action
Exited
2024Q3
617,494 sh
$305.8K
Avg buy
$157.15
2022Q2
Current
$903.99
Return
+475.2%
Last action
Exited
2025Q3
402,550 sh
$234.7K
Avg buy
$8.68
2020Q3
Current
—
Return
—
Last action
Exited
2025Q2
5,524,602 sh
$233.5K
6
G7997R103SEAGATE TECHNOLOGY HLDNGS PL
5.39%
of portfolio
Avg buy
$0.08
2023Q3
Current
—
Return
—
Last action
Exited
2025Q4
2,116,108 sh
$180.7K
Avg buy
$1.24
2022Q3
Current
$294.13
Return
+23567.6%
Last action
Exited
2024Q2
2,313,500 sh
$111.1K
Avg buy
$0.02
2023Q1
Current
—
Return
—
Last action
Exited
2024Q3
4,045,120 sh
$99.3K
Avg buy
$0.12
2023Q2
Current
$298.29
Return
+250863.6%
Last action
Exited
2024Q2
736,095 sh
$93.9K
Avg buy
$0.04
2023Q3
Current
$165.53
Return
+443408.6%
Last action
Exited
2025Q4
2,385,061 sh
$91.9K
11
H42097107UBS GROUP AG
2.23%
of portfolio
Avg buy
$0.02
2023Q2
Current
—
Return
—
Last action
Exited
2024Q1
2,414,735 sh
$74.9K
Avg buy
$12.71
2021Q3
Current
$36.69
Return
+188.7%
Last action
Exited
2024Q2
1,158,535 sh
$64.2K
Avg buy
$30.80
2022Q3
Current
$43.72
Return
+41.9%
Last action
Exited
2024Q1
539,209 sh
$58.3K
Avg buy
$12.75
2022Q4
Current
$120.27
Return
+843.6%
Last action
Exited
2024Q2
1,332,625 sh
$57.4K
Avg buy
$81.74
2021Q4
Current
—
Return
—
Last action
Exited
2024Q1
384,595 sh
$57.4K
Avg buy
$2.57
2022Q3
Current
$196.11
Return
+7539.8%
Last action
Trimmed 44.1%
2025Q4
893,030 sh
$55.9K
Avg buy
$0.24
2023Q1
Current
—
Return
—
Last action
Exited
2024Q3
234,185 sh
$55.2K
Avg buy
$0.15
2023Q4
Current
—
Return
—
Last action
Trimmed 9.4%
2025Q4
404,635 sh
$55.1K
Avg buy
$0.61
2020Q4
Current
—
Return
—
Last action
Added 111.7%
2025Q4
1,456,215 sh
$49.1K
Avg buy
$10.22
2016Q1
Current
—
Return
—
Last action
Exited
2024Q3
749,100 sh
$38.2K
21
Y2573F102FLEX LTD
1.03%
of portfolio
Avg buy
$1.05
2019Q4
Current
—
Return
—
Last action
Exited
2025Q2
1,134,400 sh
$34.6K
Avg buy
$11.68
2016Q1
Current
—
Return
—
Last action
Exited
2024Q1
1,758,300 sh
$31.8K
Avg buy
$0.13
2023Q4
Current
$82.69
Return
+64547.4%
Last action
Exited
2024Q3
235,800 sh
$30.2K
Avg buy
$0.08
2023Q3
Current
$184.44
Return
+224697.4%
Last action
Exited
2024Q1
326,735 sh
$26.7K
Avg buy
$0.02
2023Q1
Current
—
Return
—
Last action
Exited
2024Q3
975,600 sh
$25.1K
Avg buy
$0.06
2023Q1
Current
$133.37
Return
+223255.8%
Last action
Exited
2024Q2
363,585 sh
$21.9K
Avg buy
$2.56
2016Q2
Current
$68.28
Return
+2568.9%
Last action
Exited
2025Q3
471,535 sh
$20.1K
Avg buy
$0.04
2023Q4
Current
$113.41
Return
+273906.3%
Last action
Exited
2024Q1
474,250 sh
$19.6K
Avg buy
$25.89
2019Q2
Current
$166.97
Return
+544.9%
Last action
Exited
2025Q1
64,715 sh
$19.1K
Avg buy
$13.69
2016Q1
Current
$67.80
Return
+395.3%
Last action
Exited
2024Q1
531,247 sh
$18.9K
Avg buy
$15.09
2019Q2
Current
$167.69
Return
+1011.6%
Last action
Exited
2024Q1
95,700 sh
$18.4K
Avg buy
$0.02
2023Q4
Current
$6.17
Return
+37484.0%
Last action
Exited
2025Q1
924,100 sh
$17.1K
Avg buy
$0.04
2023Q4
Current
$23.74
Return
+67246.2%
Last action
Exited
2024Q1
423,850 sh
$14.9K
Avg buy
$0.06
2023Q3
Current
$361.69
Return
+631858.3%
Last action
Exited
2025Q1
230,000 sh
$12.0K
Avg buy
$0.05
2023Q4
Current
$39.54
Return
+82807.7%
Last action
Exited
2024Q1
216,600 sh
$10.3K
Avg buy
$0.16
2023Q4
Current
—
Return
—
Last action
Exited
2024Q2
63,850 sh
$10.3K
Avg buy
$133.95
2018Q1
Current
$248.16
Return
+85.3%
Last action
Exited
2024Q4
17,130 sh
$10.2K
Avg buy
$0.04
2023Q3
Current
$133.09
Return
+346347.6%
Last action
Exited
2024Q3
294,751 sh
$10.0K
Avg buy
$0.06
2023Q3
Current
—
Return
—
Last action
Exited
2024Q1
135,132 sh
$9.6K
Avg buy
$0.01
2023Q1
Current
—
Return
—
Last action
Exited
2024Q1
674,039 sh
$9.5K
Avg buy
$4.39
2021Q3
Current
$3.60
Return
-18.1%
Last action
Exited
2024Q1
906,767 sh
$8.9K
Avg buy
$0.06
2023Q4
Current
—
Return
—
Last action
Exited
2025Q1
153,965 sh
$8.1K
Avg buy
$0.19
2023Q4
Current
$99.33
Return
+51832.5%
Last action
Exited
2024Q1
28,400 sh
$5.4K
Avg buy
$0.07
2023Q4
Current
$92.62
Return
+134521.0%
Last action
Exited
2024Q1
71,700 sh
$4.9K
Avg buy
$0.08
2022Q3
Current
$299.14
Return
+354787.1%
Last action
Exited
2024Q2
38,656 sh
$4.5K
Avg buy
$40.24
2020Q4
Current
—
Return
—
Last action
Exited
2024Q1
659,750 sh
$3.8K
Avg buy
$0.08
2023Q2
Current
$80.14
Return
+99091.9%
Last action
Exited
2024Q1
47,505 sh
$3.8K
48
G4701H109IHS HOLDING LIMITED
0.11%
of portfolio
Avg buy
$11.28
2021Q4
Current
—
Return
—
Last action
Exited
2024Q4
770,310 sh
$3.5K
49
G65163100JOBY AVIATION INC
0.00%
of portfolio
Avg buy
$0.01
2022Q3
Current
—
Return
—
Last action
Exited
2025Q3
22,492 sh
$150
Avg buy
$10.52
2021Q3
Current
—
Return
—
Last action
Exited
2024Q1
100,000 sh
$69
Portfolio heatmap
Box size = % of portfolio · color = return since filing
UBS GROUP AG
2.23%
Sector exposure
Share of dollar value across the latest 13F report. Unclassified positions excluded.
- Technology10 pos$829K30.1%
- Consumer Cyclical3 pos$424K15.4%
- Healthcare7 pos$380K13.8%
- Industrials7 pos$368K13.4%
- Basic Materials3 pos$273K9.9%
- Communication Services5 pos$171K6.2%
- Energy2 pos$115K4.2%
- Utilities2 pos$96K3.5%
- Consumer Defensive1 pos$58K2.1%
- Financial Services2 pos$37K1.3%
(11.5% unclassified, excluded from %)