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
Capital flow per quarter
BuysSellsNet
Latest · 2025Q4
-$225K
Lifetime buys
$1.70B
Lifetime sells
$2.34B
Quarter activity
What changed in 2025Q4 — net new, added, trimmed, exited.
New positions26 names
- XLFSELECT SECTOR SPDR TR+5,495,600$301K
- RSPINVESCO EXCHANGE TRADED FD T+1,173,925$225K
- EWZISHARES INC+3,552,575$113K
- AAALCOA CORP+1,376,050$73K
- ENTGENTEGRIS INC+844,160$71K
- LSCCLATTICE SEMICONDUCTOR CORP+925,970$68K
- BEBLOOM ENERGY CORP+740,545$64K
- DALDELTA AIR LINES INC DEL+650,910$45K
- UALUNITED AIRLS HLDGS INC+348,400$39K
- ONON SEMICONDUCTOR CORP+536,260$29K
- GSGOLDMAN SACHS GROUP INC+27,500$24K
- STMSTMICROELECTRONICS N V+773,555$20K
- + 14 more…
Added to13 names
- GOOGLALPHABET INC+282,800$89K
- SESEA LTD+669,920$85K
- AMZNAMAZON COM INC+300,870$69K
- CPNGCOUPANG INC+2,139,785$50K
- G0896CBBB FOODS INC+1,492,027$50K
- COGTCOGENT BIOSCIENCES INC+1,154,890$41K
- N62509NEWAMSTERDAM PHARMA COMPANY+1,146,446$40K
- OPCHOPTION CARE HEALTH INC+768,265$24K
- YPFYPF SOCIEDAD ANONIMA+492,295$18K
- G25508CRH PLC+81,135$10K
- CMGCHIPOTLE MEXICAN GRILL INC+158,725$6K
- QSRRESTAURANT BRANDS INTL INC+77,635$5K
- + 1 more…
Trimmed16 names
- TEVATEVA PHARMACEUTICAL INDS LTD−10,719,065$335K
- INSMINSMED INC−941,683$164K
- NTRANATERA INC−703,175$161K
- TSMTAIWAN SEMICONDUCTOR MFG LTD−222,000$67K
- EEMISHARES TR−997,500$55K
- DOCUDOCUSIGN INC−666,865$46K
- STUBSTUBHUB HLDGS INC−1,953,765$26K
- ROKUROKU INC−239,455$26K
- FIGRFIGURE TECHNOLOGY SOLUTIO−577,040$24K
- MELIMERCADOLIBRE INC−11,195$23K
- UUNITY SOFTWARE INC−472,480$21K
- CLFCLEVELAND-CLIFFS INC NEW−969,380$13K
- + 4 more…
Exited30 names
- VRNAVERONA PHARMA PLC−1,002,080$107K
- METAMETA PLATFORMS INC−76,100$56K
- CRSCARPENTER TECHNOLOGY CORP−220,035$54K
- CCITIGROUP INC−514,850$52K
- TWLOTWILIO INC−512,800$51K
- BACBK OF AMERICA CORP−989,250$51K
- EQTEQT CORP−894,950$49K
- GEVGE VERNOVA LLC−77,320$48K
- VSTVISTRA CORP−233,985$46K
- LENLENNAR CORP−279,424$35K
- DHID R HORTON INC−205,150$35K
- FWONKLIBERTY MEDIA CORP DEL−288,400$30K
- + 18 more…
Recent transactions
Last 20 moves
TRIM
AEVA TECHNOLOGIES INC
−14,452
~$0.01 · 2025Q4
2026-02-17
SOLD
DICKS SPORTING GOODS INC
−132,425
~$0.22 · 2025Q4
2026-02-17
NEW
BLOOM ENERGY CORP
+740,545
~$0.09 · 2025Q4
2026-02-17
ADD
CHIPOTLE MEXICAN GRILL INC
+158,725
~$0.04 · 2025Q4
2026-02-17
SOLD
SEAGATE TECHNOLOGY HLDNGS PL
−85,900
~$0.24 · 2025Q4
2026-02-17
SOLD
CAPITAL ONE FINL CORP
−43,920
~$0.21 · 2025Q4
2026-02-17
SOLD
CARPENTER TECHNOLOGY CORP
−220,035
~$0.25 · 2025Q4
2026-02-17
TRIM
CLEVELAND-CLIFFS INC NEW
−969,380
~$0.01 · 2025Q4
2026-02-17
ADD
COGENT BIOSCIENCES INC
+1,154,890
~$0.04 · 2025Q4
2026-02-17
