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
Number of shares
3,589,540 sh
Holdings current value
$260.1K
Avg closing price
$0.06
+511351.6%
Last action
Exited
2025Q3
Current $328.00
Number of shares
10,971,140 sh
Holdings current value
$229.8K
Avg closing price
$18.21
+18.0%
Last action
Added 24.2%
2025Q4
Current $21.49
Number of shares
2,625,231 sh
Holdings current value
$225.7K
Avg closing price
$0.04
+443408.6%
Last action
Exited
2025Q4
Current $165.53
Number of shares
1,974,880 sh
Holdings current value
$213.9K
Avg closing price
$2.57
+7539.8%
Last action
Trimmed 26.3%
2025Q4
Current $196.11
5
G7997R103SEAGATE TECHNOLOGY HLDNGS PL
6.21%
of portfolio
Number of shares
1,755,278 sh
Holdings current value
$181.3K
Avg closing price
$0.08
Last action
Exited
2025Q4
Current —
Number of shares
400,490 sh
Holdings current value
$179.0K
Avg closing price
$7.70
+5391.1%
Last action
Exited
2025Q3
Current $422.79
Number of shares
954,230 sh
Holdings current value
$166.4K
Avg closing price
$0.15
Last action
Trimmed 4.2%
2025Q4
Current —
Number of shares
6,753,165 sh
Holdings current value
$134.2K
Avg closing price
$0.02
+167297.3%
Last action
Exited
2025Q3
Current $31.79
Number of shares
644,190 sh
Holdings current value
$91.9K
Avg closing price
$0.14
Last action
Exited
2024Q4
Current —
Number of shares
889,355 sh
Holdings current value
$90.1K
Avg closing price
$40.32
+287.5%
Last action
New holding
2025Q4
Current $156.24
Number of shares
5,881,906 sh
Holdings current value
$75.1K
Avg closing price
$0.02
+37484.0%
Last action
Exited
2025Q1
Current $6.17
Number of shares
1,453,410 sh
Holdings current value
$69.6K
Avg closing price
$8.68
Last action
Exited
2025Q2
Current —
Number of shares
577,915 sh
Holdings current value
$63.1K
Avg closing price
$0.11
Last action
Exited
2024Q4
Current —
14
G3643J108FLUTTER ENTMT PLC
2.10%
of portfolio
Number of shares
335,076 sh
Holdings current value
$61.2K
Avg closing price
$0.22
Last action
Trimmed 46.4%
2025Q3
Current —
Number of shares
36,493 sh
Holdings current value
$60.0K
Avg closing price
$570.69
+219.3%
Last action
Trimmed 23.5%
2025Q4
Current $1822
Number of shares
1,153,135 sh
Holdings current value
$56.0K
Avg closing price
$2.56
+2568.9%
Last action
Exited
2025Q3
Current $68.28
Number of shares
1,871,818 sh
Holdings current value
$51.8K
Avg closing price
$0.61
Last action
Added 69.6%
2025Q4
Current —
Number of shares
297,068 sh
Holdings current value
$51.0K
Avg closing price
$0.28
+345876.4%
Last action
Exited
2025Q4
Current $978.32
19
Y2573F102FLEX LTD
1.46%
of portfolio
Number of shares
1,449,155 sh
Holdings current value
$42.7K
Avg closing price
$1.05
Last action
Exited
2025Q2
Current —
20
85205L107SPRINGWORKS THERAPEUTICS INC
1.32%
of portfolio
Number of shares
1,021,367 sh
Holdings current value
$38.5K
Avg closing price
$0.04
Last action
Exited
2025Q2
Current —
Number of shares
2,493,605 sh
Holdings current value
$34.8K
Avg closing price
$0.01
Last action
Trimmed 19.0%
2025Q4
Current —
Number of shares
88,968 sh
Holdings current value
$30.2K
Avg closing price
$25.89
+544.9%
Last action
Exited
2025Q1
Current $166.97
Number of shares
214,060 sh
Holdings current value
$26.4K
Avg closing price
$65.98
+204.0%
Last action
Exited
2024Q3
Current $200.57
Number of shares
150,675 sh
Holdings current value
$23.8K
Avg closing price
$0.18
+140906.7%
Last action
Trimmed 1.5%
2025Q4
Current $255.50
Number of shares
694,225 sh
Holdings current value
$23.8K
Avg closing price
$0.04
+157369.6%
Last action
Exited
2024Q3
Current $61.13
Number of shares
2,075,455 sh
Holdings current value
$22.2K
Avg closing price
$0.01
Last action
Exited
2025Q3
Current —
Number of shares
167,255 sh
Holdings current value
$21.9K
Avg closing price
$0.13
Last action
Exited
2025Q1
Current —
Number of shares
36,685 sh
Holdings current value
$20.4K
Avg closing price
$133.95
+85.3%
Last action
Exited
2024Q4
Current $248.16
Number of shares
769,965 sh
Holdings current value
$19.5K
Avg closing price
$15.19
+840.1%
Last action
Exited
2025Q1
Current $142.76
Number of shares
683,800 sh
Holdings current value
$18.9K
Avg closing price
$0.02
Last action
Exited
2024Q3
Current —
Number of shares
52,275 sh
Holdings current value
$18.3K
Avg closing price
$0.24
Last action
Exited
2024Q3
Current —
Number of shares
635,850 sh
Holdings current value
$18.1K
Avg closing price
$0.02
Last action
Exited
2024Q3
Current —
Number of shares
282,000 sh
Holdings current value
$16.0K
Avg closing price
$0.07
Last action
Exited
2025Q4
Current —
Number of shares
273,130 sh
Holdings current value
$15.7K
Avg closing price
$0.06
Last action
Exited
2025Q3
Current —
Number of shares
475,763 sh
Holdings current value
$14.5K
Avg closing price
$17.18
Last action
Exited
2025Q3
Current —
Number of shares
309,000 sh
Holdings current value
$13.8K
Avg closing price
$0.05
Last action
Exited
2025Q1
Current —
Number of shares
83,841 sh
Holdings current value
$12.9K
Avg closing price
$0.13
+64547.4%
Last action
Exited
2024Q3
Current $82.69
Number of shares
638,435 sh
Holdings current value
$12.8K
Avg closing price
$0.04
Last action
Added 336.9%
2025Q4
Current —
Number of shares
60,360 sh
Holdings current value
$12.8K
Avg closing price
$65.60
+162.1%
Last action
Exited
2025Q1
Current $171.95
Number of shares
103,100 sh
Holdings current value
$9.7K
Avg closing price
$67.68
+137.3%
Last action
Exited
2025Q1
Current $160.59
Number of shares
2,090,000 sh
Holdings current value
$9.3K
Avg closing price
$0.00
Last action
Exited
2025Q1
Current —
Number of shares
400,792 sh
Holdings current value
$8.7K
Avg closing price
$0.02
Last action
Exited
2024Q3
Current —
Number of shares
387,400 sh
Holdings current value
$7.4K
Avg closing price
$0.02
Last action
Exited
2024Q4
Current —
Number of shares
259,944 sh
Holdings current value
$5.6K
Avg closing price
$0.02
+148961.6%
Last action
Exited
2024Q3
Current $33.03
Number of shares
314,750 sh
Holdings current value
$5.5K
Avg closing price
$0.02
+80776.7%
Last action
Exited
2024Q3
Current $14.50
Number of shares
24,400 sh
Holdings current value
$5.1K
Avg closing price
$0.17
+157484.9%
Last action
Exited
2024Q3
Current $270.23
Number of shares
103,100 sh
Holdings current value
$4.9K
Avg closing price
$10.22
Last action
Exited
2024Q3
Current —
48
G61188101LIBERTY GLOBAL LTD
0.16%
of portfolio
Number of shares
275,275 sh
Holdings current value
$4.8K
Avg closing price
$0.02
Last action
Exited
2024Q3
Current —
Number of shares
66,900 sh
Holdings current value
$4.8K
Avg closing price
$0.48
+18539.3%
Last action
Added
2025Q4
Current $90.40
50
G61188127LIBERTY GLOBAL LTD
0.16%
of portfolio
Number of shares
261,875 sh
Holdings current value
$4.7K
Avg closing price
$0.02
Last action
Exited
2024Q3
Current —
Number of shares
121,000 sh
Holdings current value
$4.5K
Avg closing price
$5.02
+1064.0%
Last action
Exited
2025Q4
Current $58.39
Number of shares
122,411 sh
Holdings current value
$4.3K
Avg closing price
$0.04
+346347.6%
Last action
Exited
2024Q3
Current $133.09
Number of shares
74,100 sh
Holdings current value
$4.1K
Avg closing price
$0.07
Last action
Exited
2025Q1
Current —
Number of shares
29,385 sh
Holdings current value
$4.1K
Avg closing price
$0.11
+74638.5%
Last action
Exited
2025Q3
Current $83.90
Number of shares
190,200 sh
Holdings current value
$3.9K
Avg closing price
$0.02
Last action
Exited
2024Q4
Current —
56
G4701H109IHS HOLDING LIMITED
0.08%
of portfolio
Number of shares
770,310 sh
Holdings current value
$2.5K
Avg closing price
$11.28
Last action
Exited
2024Q4
Current —
Number of shares
426,921 sh
Holdings current value
$2.4K
Avg closing price
$0.01
Last action
Exited
2025Q1
Current —
Number of shares
37,700 sh
Holdings current value
$1.5K
Avg closing price
$0.04
Last action
Exited
2024Q3
Current —
Number of shares
20,000 sh
Holdings current value
$1.3K
Avg closing price
$0.31
Last action
Trimmed 97.9%
2025Q4
Current —
Number of shares
143,051 sh
Holdings current value
$1.0K
Avg closing price
$0.01
Last action
Exited
2024Q3
Current —
Number of shares
44,200 sh
Holdings current value
$922
Avg closing price
$0.01
+113392.0%
Last action
Exited
2024Q4
Current $16.69
Number of shares
571,425 sh
Holdings current value
$629
Avg closing price
$0.00
Last action
Exited
2025Q2
Current —
63
G65163100JOBY AVIATION INC
0.00%
of portfolio
Number of shares
22,492 sh
Holdings current value
$115
Avg closing price
$0.01
Last action
Exited
2025Q3
Current —
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 %)