Stephen Mandel - Lone Pine Capital 13F Activity & Position Changes (Q4 2018)

According to the SEC 13F filed on Aug 14, 2026, the Lone Pine Capital portfolio showed several notable changes in holdings as of quarter-end Dec 31, 2018. 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 Q4 2018, the filing reported:

New Buys - Autodesk, Inc., Booking Holdings Inc. Common St, Salesforce, Inc., Mastercard Incorporated

Increases - Amazon.com, Inc., CSX Corporation, Meta Platforms, Inc., Constellation Brands, Inc., TransUnion, and 1 more

Reductions - Adobe Inc., Alibaba Group Holding Limited, IQVIA Holdings, Inc., MercadoLibre, Inc., Microsoft Corporation, and 3 more

Complete Exits - Electronic Arts Inc., Alphabet Inc., NVIDIA Corporation, Union Pacific Corporation

These updates highlight how the portfolio adjusted across different sectors and market conditions, offering insights into allocation shifts and investment trends.

Date	Symbol	Name	Type	Change Qty	% Change	Value	Remaining
Q4 2018	ADBE Adobe Inc.	Adobe Inc.	Sell	-296,972	-5.5%	$1.16M	5,127,799
Q4 2018	ADSK Autodesk, Inc.	Autodesk, Inc.	Buy - Position Entry	+3,836,207	-	$493.38K	3,836,207
Q4 2018	AMZN Amazon.com, Inc.	Amazon.com, Inc.	Buy	+392,847	+112.6%	$1.11M	741,661
Q4 2018	BABA Alibaba Group Holding Limited	Alibaba Group Holding Limited	Sell	-3,521,835	-36.2%	$851.25K	6,210,334
Q4 2018	BKNG Booking Holdings Inc. Common St	Booking Holdings Inc. Common St	Buy - Position Entry	+353,496	-	$608.87K	353,496
Q4 2018	CRM Salesforce, Inc.	Salesforce, Inc.	Buy - Position Entry	+658,000	-	$90.13K	658,000
Q4 2018	CSX CSX Corporation	CSX Corporation	Buy	+215,000	+2.3%	$599.27K	9,645,475
Q4 2018	EA Electronic Arts Inc.	Electronic Arts Inc.	Sell - Position Exit	-7,855,868	-100.0%	$0.00	-
Q4 2018	GOOG Alphabet Inc.	Alphabet Inc.	Sell - Position Exit	-891,299	-100.0%	$0.00	-
Q4 2018	IQV IQVIA Holdings, Inc.	IQVIA Holdings, Inc.	Sell	-695,300	-8.3%	$895.46K	7,708,139
Q4 2018	MA Mastercard Incorporated	Mastercard Incorporated	Buy - Position Entry	+2,944,587	-	$555.50K	2,944,587
Q4 2018	MELI MercadoLibre, Inc.	MercadoLibre, Inc.	Sell	-1,334,475	-74.7%	$132.01K	450,784
Q4 2018	META Meta Platforms, Inc.	Meta Platforms, Inc.	Buy	+2,806,564	+72.6%	$874.34K	6,669,767
Q4 2018	MSFT Microsoft Corporation	Microsoft Corporation	Sell	-3,640,407	-26.5%	$1.03M	10,097,064
Q4 2018	NOW ServiceNow, Inc.	ServiceNow, Inc.	Sell	-524,520	-16.6%	$470.43K	2,642,117
Q4 2018	NVDA NVIDIA Corporation	NVIDIA Corporation	Sell - Position Exit	-2,235,268	-100.0%	$0.00	-
Q4 2018	PYPL PayPal Holdings, Inc.	PayPal Holdings, Inc.	Sell	-200,000	-3.4%	$484.57K	5,762,509
Q4 2018	STZ Constellation Brands, Inc.	Constellation Brands, Inc.	Buy	+848,390	+19.7%	$829.86K	5,160,154
Q4 2018	TDG Transdigm Group Incorporated	Transdigm Group Incorporated	Sell	-240,593	-13.6%	$517.75K	1,522,520
Q4 2018	TRU TransUnion	TransUnion	Buy	+305,570	+3.1%	$575.09K	10,124,771
Q4 2018	UNH UnitedHealth Group Incorporated	UnitedHealth Group Incorporated	Buy	+557,057	+18.5%	$890.53K	3,574,718
Q4 2018	UNP Union Pacific Corporation	Union Pacific Corporation	Sell - Position Exit	-3,224,826	-100.0%	$0.00	-