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 · 2024Q2
63 positions
Avg buy
$0.06
2024Q1
Current
$328.00
Return
+511351.6%
Last action
Exited
2025Q3
3,589,540 sh
$260.1K
Avg buy
$18.21
2021Q1
Current
$21.49
Return
+18.0%
Last action
Added 24.2%
2025Q4
10,971,140 sh
$229.8K
Avg buy
$0.04
2023Q3
Current
$165.53
Return
+443408.6%
Last action
Exited
2025Q4
2,625,231 sh
$225.7K
Avg buy
$2.57
2022Q3
Current
$196.11
Return
+7539.8%
Last action
Trimmed 26.3%
2025Q4
1,974,880 sh
$213.9K
5
G7997R103SEAGATE TECHNOLOGY HLDNGS PL
6.21%
of portfolio
Avg buy
$0.08
2023Q3
Current
—
Return
—
Last action
Exited
2025Q4
1,755,278 sh
$181.3K
Avg buy
$7.70
2016Q1
Current
$422.79
Return
+5391.1%
Last action
Exited
2025Q3
400,490 sh
$179.0K
Avg buy
$0.15
2023Q4
Current
—
Return
—
Last action
Trimmed 4.2%
2025Q4
954,230 sh
$166.4K
Avg buy
$0.02
2024Q1
Current
$31.79
Return
+167297.3%
Last action
Exited
2025Q3
6,753,165 sh
$134.2K
Avg buy
$0.14
2024Q2
Current
—
Return
—
Last action
Exited
2024Q4
644,190 sh
$91.9K
Avg buy
$40.32
2016Q1
Current
$156.24
Return
+287.5%
Last action
New holding
2025Q4
889,355 sh
$90.1K
Avg buy
$0.02
2023Q4
Current
$6.17
Return
+37484.0%
Last action
Exited
2025Q1
5,881,906 sh
$75.1K
Avg buy
$8.68
2020Q3
Current
—
Return
—
Last action
Exited
2025Q2
1,453,410 sh
$69.6K
Avg buy
$0.11
2024Q2
Current
—
Return
—
Last action
Exited
2024Q4
577,915 sh
$63.1K
14
G3643J108FLUTTER ENTMT PLC
2.10%
of portfolio
Avg buy
$0.22
2024Q2
Current
—
Return
—
Last action
Trimmed 46.4%
2025Q3
335,076 sh
$61.2K
Avg buy
$570.69
2018Q2
Current
$1822
Return
+219.3%
Last action
Trimmed 23.5%
2025Q4
36,493 sh
$60.0K
Avg buy
$2.56
2016Q2
Current
$68.28
Return
+2568.9%
Last action
Exited
2025Q3
1,153,135 sh
$56.0K
Avg buy
$0.61
2020Q4
Current
—
Return
—
Last action
Added 69.6%
2025Q4
1,871,818 sh
$51.8K
Avg buy
$0.28
2024Q2
Current
$978.32
Return
+345876.4%
Last action
Exited
2025Q4
297,068 sh
$51.0K
19
Y2573F102FLEX LTD
1.46%
of portfolio
Avg buy
$1.05
2019Q4
Current
—
Return
—
Last action
Exited
2025Q2
1,449,155 sh
$42.7K
20
85205L107SPRINGWORKS THERAPEUTICS INC
1.32%
of portfolio
Avg buy
$0.04
2024Q2
Current
—
Return
—
Last action
Exited
2025Q2
1,021,367 sh
$38.5K
Avg buy
$0.01
2024Q1
Current
—
Return
—
Last action
Trimmed 19.0%
2025Q4
2,493,605 sh
$34.8K
Avg buy
$25.89
2019Q2
Current
$166.97
Return
+544.9%
Last action
Exited
2025Q1
88,968 sh
$30.2K
Avg buy
$65.98
2016Q2
Current
$200.57
Return
+204.0%
Last action
Exited
2024Q3
214,060 sh
$26.4K
Avg buy
$0.18
2024Q1
Current
$255.50
Return
+140906.7%
Last action
Trimmed 1.5%
2025Q4
150,675 sh
$23.8K
Avg buy
$0.04
2024Q1
Current
$61.13
Return
+157369.6%
Last action
Exited
2024Q3
694,225 sh
$23.8K
Avg buy
$0.01
2024Q1
Current
—
Return
—
Last action
Exited
2025Q3
2,075,455 sh
$22.2K
Avg buy
$0.13
2024Q1
Current
—
Return
—
Last action
Exited
2025Q1
167,255 sh
$21.9K
Avg buy
$133.95
2018Q1
Current
$248.16
Return
+85.3%
Last action
Exited
2024Q4
36,685 sh
$20.4K
Avg buy
$15.19
2021Q3
Current
$142.76
Return
+840.1%
Last action
Exited
2025Q1
769,965 sh
$19.5K
Avg buy
$0.02
2023Q1
Current
—
Return
—
Last action
Exited
2024Q3
683,800 sh
$18.9K
Avg buy
$0.24
2023Q1
Current
—
Return
—
Last action
Exited
2024Q3
52,275 sh
$18.3K
Avg buy
$0.02
2023Q1
Current
—
Return
—
Last action
Exited
2024Q3
635,850 sh
$18.1K
Avg buy
$0.07
2024Q1
Current
—
Return
—
Last action
Exited
2025Q4
282,000 sh
$16.0K
Avg buy
$0.06
2024Q1
Current
—
Return
—
Last action
Exited
2025Q3
273,130 sh
$15.7K
Avg buy
$17.18
2017Q3
Current
—
Return
—
Last action
Exited
2025Q3
475,763 sh
$14.5K
Avg buy
$0.05
2024Q1
Current
—
Return
—
Last action
Exited
2025Q1
309,000 sh
$13.8K
Avg buy
$0.13
2023Q4
Current
$82.69
Return
+64547.4%
Last action
Exited
2024Q3
83,841 sh
$12.9K
Avg buy
$0.04
2024Q2
Current
—
Return
—
Last action
Added 336.9%
2025Q4
638,435 sh
$12.8K
Avg buy
$65.60
2020Q1
Current
$171.95
Return
+162.1%
Last action
Exited
2025Q1
60,360 sh
$12.8K
Avg buy
$67.68
2020Q2
Current
$160.59
Return
+137.3%
Last action
Exited
2025Q1
103,100 sh
$9.7K
Avg buy
$0.00
2024Q2
Current
—
Return
—
Last action
Exited
2025Q1
2,090,000 sh
$9.3K
Avg buy
$0.02
2024Q1
Current
—
Return
—
Last action
Exited
2024Q3
400,792 sh
$8.7K
Avg buy
$0.02
2024Q1
Current
—
Return
—
Last action
Exited
2024Q4
387,400 sh
$7.4K
Avg buy
$0.02
2024Q1
Current
$33.03
Return
+148961.6%
Last action
Exited
2024Q3
259,944 sh
$5.6K
Avg buy
$0.02
2024Q1
Current
$14.50
Return
+80776.7%
Last action
Exited
2024Q3
314,750 sh
$5.5K
Avg buy
$0.17
2024Q1
Current
$270.23
Return
+157484.9%
Last action
Exited
2024Q3
24,400 sh
$5.1K
Avg buy
$10.22
2016Q1
Current
—
Return
—
Last action
Exited
2024Q3
103,100 sh
$4.9K
48
G61188101LIBERTY GLOBAL LTD
0.16%
of portfolio
Avg buy
$0.02
2024Q1
Current
—
Return
—
Last action
Exited
2024Q3
275,275 sh
$4.8K
Avg buy
$0.48
2019Q1
Current
$90.40
Return
+18539.3%
Last action
Added
2025Q4
66,900 sh
$4.8K
50
G61188127LIBERTY GLOBAL LTD
0.16%
of portfolio
Avg buy
$0.02
2024Q1
Current
—
Return
—
Last action
Exited
2024Q3
261,875 sh
$4.7K
Avg buy
$5.02
2016Q4
Current
$58.39
Return
+1064.0%
Last action
Exited
2025Q4
121,000 sh
$4.5K
Avg buy
$0.04
2023Q3
Current
$133.09
Return
+346347.6%
Last action
Exited
2024Q3
122,411 sh
$4.3K
Avg buy
$0.07
2024Q1
Current
—
Return
—
Last action
Exited
2025Q1
74,100 sh
$4.1K
Avg buy
$0.11
2022Q3
Current
$83.90
Return
+74638.5%
Last action
Exited
2025Q3
29,385 sh
$4.1K
Avg buy
$0.02
2024Q1
Current
—
Return
—
Last action
Exited
2024Q4
190,200 sh
$3.9K
56
G4701H109IHS HOLDING LIMITED
0.08%
of portfolio
Avg buy
$11.28
2021Q4
Current
—
Return
—
Last action
Exited
2024Q4
770,310 sh
$2.5K
Avg buy
$0.01
2024Q1
Current
—
Return
—
Last action
Exited
2025Q1
426,921 sh
$2.4K
Avg buy
$0.04
2024Q2
Current
—
Return
—
Last action
Exited
2024Q3
37,700 sh
$1.5K
Avg buy
$0.31
2020Q2
Current
—
Return
—
Last action
Trimmed 97.9%
2025Q4
20,000 sh
$1.3K
Avg buy
$0.01
2024Q1
Current
—
Return
—
Last action
Exited
2024Q3
143,051 sh
$1.0K
Avg buy
$0.01
2024Q1
Current
$16.69
Return
+113392.0%
Last action
Exited
2024Q4
44,200 sh
$922
Avg buy
$0.00
2024Q2
Current
—
Return
—
Last action
Exited
2025Q2
571,425 sh
$629
63
G65163100JOBY AVIATION INC
0.00%
of portfolio
Avg buy
$0.01
2022Q3
Current
—
Return
—
Last action
Exited
2025Q3
22,492 sh
$115
Portfolio heatmap
Box size = % of portfolio · color = return since filing
FLUTTER ENTMT PLC
2.10%
FLEX LTD
1.46%
SPRINGWORKS THERAPEUTICS INC
1.32%
39 more
12.45%
Sector exposure
Share of dollar value across the latest 13F report. Unclassified positions excluded.
- Technology9 pos$651K26.9%
- Consumer Cyclical5 pos$323K13.4%
- Healthcare11 pos$310K12.8%
- Industrials5 pos$258K10.7%
- Utilities2 pos$231K9.6%
- Real Estate2 pos$155K6.4%
- Energy3 pos$152K6.3%
- Basic Materials2 pos$126K5.2%
- Consumer Defensive1 pos$90K3.7%
- Financial Services4 pos$62K2.6%
- Communication Services6 pos$61K2.5%
(14.2% unclassified, excluded from %)