Stanley Druckenmiller - Duquesne Family Office Llc 13F Activity & Position Changes (Q3 2017)
According to the SEC 13F filed on Aug 14, 2026, the Duquesne Family Office Llc portfolio showed several notable changes in holdings as of quarter-end Sep 30, 2017. The activity included new positions, additions to existing holdings, reductions, and complete exits, providing a clear view of how the portfolio evolved during the quarter.
During Q3 2017, the filing reported:
New Buys - Biogen Inc., The Bank of New York Mellon Cor, Citigroup, Inc., Chubb Limited, CF Industries Holdings, Inc., and 6 more
Increases - Amazon.com, Inc., Alibaba Group Holding Limited, Salesforce, Inc., Alphabet Inc., iShares Biotechnology ETF, and 3 more
Reductions - None reported
Complete Exits - American Airlines Group, Inc., Autodesk, Inc., Crown Castle Inc., Comcast Corporation, Delta Air Lines, Inc., and 6 more
These updates highlight how the portfolio adjusted across different sectors and market conditions, offering insights into allocation shifts and investment trends.
| Date | Symbol | Type | Change Qty |
|---|---|---|---|
|
Q3 2017
|
AAL
American Airlines Group, Inc.
|
Sell - Position Exit |
-400,000
|
|
Q3 2017
|
ADSK
Autodesk, Inc.
|
Sell - Position Exit |
-347,800
|
|
Q3 2017
|
AMZN
Amazon.com, Inc.
|
Buy |
+25,800
|
|
Q3 2017
|
BABA
Alibaba Group Holding Limited
|
Buy |
+67,200
|
|
Q3 2017
|
BIIB
Biogen Inc.
|
Buy - Position Entry |
+48,000
|
|
Q3 2017
|
BK
The Bank of New York Mellon Cor
|
Buy - Position Entry |
+376,000
|
|
Q3 2017
|
C
Citigroup, Inc.
|
Buy - Position Entry |
+1,095,200
|
|
Q3 2017
|
CB
Chubb Limited
|
Buy - Position Entry |
+206,600
|
|
Q3 2017
|
CCI
Crown Castle Inc.
|
Sell - Position Exit |
-148,000
|
|
Q3 2017
|
CF
CF Industries Holdings, Inc.
|
Buy - Position Entry |
+391,900
|
|
Q3 2017
|
CMCSA
Comcast Corporation
|
Sell - Position Exit |
-1,968,400
|
|
Q3 2017
|
CRM
Salesforce, Inc.
|
Buy |
+444,900
|
|
Q3 2017
|
DAL
Delta Air Lines, Inc.
|
Sell - Position Exit |
-391,000
|
|
Q3 2017
|
GGAL
Grupo Financiero Galicia S.A.
|
Buy - Position Entry |
+200,000
|
|
Q3 2017
|
GOOGL
Alphabet Inc.
|
Buy |
+57,200
|
|
Q3 2017
|
IBB
iShares Biotechnology ETF
|
Buy |
+28,300
|
|
Q3 2017
|
INCY
Incyte Corporation
|
Buy - Position Entry |
+75,400
|
|
Q3 2017
|
JD
JD.com, Inc.
|
Buy |
+826,300
|
|
Q3 2017
|
MRK
Merck & Company, Inc.
|
Sell - Position Exit |
-755,500
|
|
Q3 2017
|
MSFT
Microsoft Corporation
|
Buy |
+274,000
|
|
Q3 2017
|
NFLX
Netflix, Inc.
|
Buy - Position Entry |
+114,500
|
|
Q3 2017
|
NOW
ServiceNow, Inc.
|
Sell - Position Exit |
-428,000
|
|
Q3 2017
|
NTES
NetEase, Inc.
|
Sell - Position Exit |
-85,700
|
|
Q3 2017
|
NVDA
NVIDIA Corporation
|
Buy - Position Entry |
+91,500
|
|
Q3 2017
|
PTC
PTC Inc.
|
Sell - Position Exit |
-449,600
|
|
Q3 2017
|
REGN
Regeneron Pharmaceuticals, Inc.
|
Buy - Position Entry |
+31,800
|
|
Q3 2017
|
SBAC
SBA Communications Corporation
|
Sell - Position Exit |
-112,000
|
|
Q3 2017
|
UAL
United Airlines Holdings, Inc.
|
Sell - Position Exit |
-243,500
|
|
Q3 2017
|
VALE
VALE S.A.
|
Buy - Position Entry |
+2,478,800
|
|
Q3 2017
|
WDAY
Workday, Inc.
|
Buy |
+535,300
|