Mason Hawkins - Longleaf Partners 13F Activity & Position Changes (Q1 2021)

According to the SEC 13F filed on May 17, 2021, the Longleaf Partners portfolio showed several notable changes in holdings as of quarter-end Mar 31, 2021. 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 Q1 2021, the filing reported:

New Buys - Alibaba Group Holding Limited, Biogen Inc., Lumen Technologies, Inc., JOYY Inc.

Increases - None reported

Reductions - Affiliated Managers Group, Inc., Baidu, Inc., Comcast Corporation, CNH Industrial, CNX Resources Corporation, and 9 more

Complete Exits - DuPont de Nemours, Inc., PotlatchDeltic Corporation - Co, Trip.com Group Limited

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
Q1 2021	AMG Affiliated Managers Group, Inc.	Affiliated Managers Group, Inc.	Sell	-346,782	-21.4%	$189.39K	1,270,837
Q1 2021	BABA Alibaba Group Holding Limited	Alibaba Group Holding Limited	Buy - Position Entry	+357,571	-	$81.07K	357,571
Q1 2021	BIDU Baidu, Inc.	Baidu, Inc.	Sell	-154,041	-16.9%	$165.19K	759,328
Q1 2021	BIIB Biogen Inc.	Biogen Inc.	Buy - Position Entry	+603,890	-	$168.94K	603,890
Q1 2021	CMCSA Comcast Corporation	Comcast Corporation	Sell	-199,618	-4.1%	$251.77K	4,652,977
Q1 2021	CNH CNH Industrial	CNH Industrial	Sell	-325,369	-10.9%	$41.57K	2,657,754
Q1 2021	CNX CNX Resources Corporation	CNX Resources Corporation	Sell	-5,966,965	-16.8%	$434.25K	29,541,009
Q1 2021	DD DuPont de Nemours, Inc.	DuPont de Nemours, Inc.	Sell - Position Exit	-2,599,162	-100.0%	$0.00	-
Q1 2021	DEI Douglas Emmett, Inc.	Douglas Emmett, Inc.	Sell	-142,898	-3.5%	$125.42K	3,994,349
Q1 2021	EG Everest Group	Everest Group	Sell	-2,335	-0.6%	$99.42K	401,202
Q1 2021	ESRT Empire State Realty Trust, Inc.	Empire State Realty Trust, Inc.	Sell	-3,224,611	-20.2%	$142.22K	12,778,058
Q1 2021	FDX FedEx Corporation	FedEx Corporation	Sell	-39,053	-4.4%	$240.46K	846,557
Q1 2021	GHC Graham Holdings Company	Graham Holdings Company	Sell	-13,864	-6.2%	$117.00K	208,018
Q1 2021	H Hyatt Hotels Corporation	Hyatt Hotels Corporation	Sell	-699,399	-17.0%	$282.32K	3,413,828
Q1 2021	LUMN Lumen Technologies, Inc.	Lumen Technologies, Inc.	Buy - Position Entry	+62,113,933	-	$829.22K	62,113,933
Q1 2021	MAT Mattel, Inc.	Mattel, Inc.	Sell	-1,269,939	-7.3%	$321.65K	16,147,300
Q1 2021	MGM MGM Resorts International	MGM Resorts International	Sell	-1,427,700	-20.2%	$213.71K	5,625,364
Q1 2021	PCH PotlatchDeltic Corporation - Co	PotlatchDeltic Corporation - Co	Sell - Position Exit	-1,387,349	-100.0%	$0.00	-
Q1 2021	TCOM Trip.com Group Limited	Trip.com Group Limited	Sell - Position Exit	-1,250,835	-100.0%	$0.00	-
Q1 2021	WMB Williams Companies, Inc. (The)	Williams Companies, Inc. (The)	Sell	-815,957	-9.0%	$195.70K	8,261,009
Q1 2021	YY JOYY Inc.	JOYY Inc.	Buy - Position Entry	+626,472	-	$58.72K	626,472