Mason Hawkins - Southeastern Asset Management

As of Q1 2026, Mason Hawkins reported 49 long-equity positions worth $2.03B in aggregate.

Copy-investor backtest

Latest quarter: -5.36%
1-year: +1.84%
3-year: +30.46%
3-year top 5: +16.56%

Return from mechanically copying the disclosed 13F equity portfolio after each filing and rebalancing at the next. Method & limitations.

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Filing period

Updated 2026-06-06 from SEC 13F data.

Live quotes available for 28 of 41 rows. Rows without a quote are marked unavailable.


1	LUMN	Lumen Technologies	14.26%	Reduce -0.8%	61,990,676	$676.32M	No quote	No quote
2	MAT	Mattel, Inc.	7.60%	Reduce -0.2%	16,136,192	$360.32M	$22.33
3	FDX	FedEx Corporation	6.55%	Reduce -1.3%	1,370,512	$310.71M	$226.71
4	CNX	CNX Resources Corp	5.49%	Reduce -30.5%	15,809,177	$260.22M	$16.46
5	IAC	IAC/InterActiveCorp	4.79%	Add +15.7%	2,989,115	$227.08M	$75.97
6	H	Hyatt Hotels Corp. - Class A	4.51%	Add +18.6%	2,894,024	$213.9M	$73.91
7	GE	General Electric	4.40%	Add +12.2%	3,275,090	$208.53M	$63.67
8	AMG	Affiliated Managers Group Inc.	4.31%	Reduce -1.3%	1,752,835	$204.38M	$116.60
9	WBD	Warner Bros Discovery Inc	4.23%	New	14,943,944	$200.55M	$13.42
10	LAZ	Lazard Ltd	3.55%	Reduce -1.7%	5,194,806	$168.36M	$32.41
11	LBRDK	Liberty Broadband Corporation	3.54%	Add +43.0%	1,452,605	$167.98M	$115.64
12	GOOG	Alphabet Inc. CL C	3.51%	New	76,014	$166.28M	$2187.45
13	MGM	MGM Resorts International	3.38%	Reduce -3.1%	5,535,635	$160.26M	$28.95
14	WTM	White Mountains Insurance Grou	3.30%	Add +0.1%	125,603	$156.52M	$1246.13
15	GHC	Graham Holdings Company	3.09%	Reduce -9.5%	258,639	$146.61M	$566.84
16	MSGS	Madison Square Garden Sports C	2.60%	Reduce -9.5%	817,871	$123.5M	$151.00
17	PVH	PVH Corp	2.56%	New	2,133,209	$121.38M	$56.90
18	HOUS	Anywhere Real Estate Inc	2.36%	Add +7.4%	11,363,713	$111.71M	No quote	No quote
19	RNR	RenaissanceRe Holdings Ltd.	2.33%	Reduce -24.8%	706,546	$110.48M	$156.37
20	DEI	Douglas Emmett Inc	2.19%	Reduce -11.7%	4,639,076	$103.82M	$22.38
21	FI	Fiserv Inc	2.18%	Reduce -0.2%	1,162,149	$103.4M	No quote	No quote
22	ESRT	Empire State Realty Trust Inc.	2.11%	Reduce -3.9%	14,217,772	$99.95M	$7.03
23	BATRK	Liberty Media Corp - Braves C	1.60%	Reduce -7.9%	3,163,971	$75.94M	$24.00
24	VMEO	Vimeo Inc.	1.43%	-	11,296,320	$68M	No quote	No quote
25	SWK	Stanley Black & Decker Inc	1.05%	New	474,875	$49.8M	$104.86
26	OSCR	Oscar Health Inc	1.00%	-	11,146,872	$47.37M	$4.25
27	CNHI	CNH Industrial NV - U.S.	0.69%	Reduce -4.0%	2,826,047	$32.75M	No quote	No quote
28	HTHT	H World Group Limited ADR	0.51%	Add +445.4%	628,496	$23.95M	$38.10
29	YY	JOYY Inc. ADR	0.49%	Reduce -0.3%	782,510	$23.37M	No quote	No quote
30	IMKTA	Ingles Markets Incorporated -	0.26%	-	142,580	$12.37M	No quote	No quote
31	LBRDA	Liberty Broadband Corporation	0.04%	Reduce -0.4%	18,519	$2.1M	$113.56
32	CAH	Cardinal Health Inc	0.02%	-	21,608	$1.13M	$52.25
33	XPO	XPO Logistics Inc	0.02%	Add +8.3%	16,089	$775K	$48.17
34	SYNH	Syneos Health Inc	0.02%	-	10,550	$756K	No quote	No quote
35	PAYA	Paya Holdings Inc	0.02%	-	110,045	$723K	No quote	No quote
36	MLCO	Melco Resorts & Entertainment	0.01%	Reduce -93.5%	80,926	$465K	$5.75
37	CMCSA	Comcast Corporation Cl A	0.01%	-	9,531	$374K	$39.24
41	WMB	Williams Companies, Inc.	-	Sold	0	$0	No quote	No quote
40	BATRA	Liberty Media Corp - Braves A	-	Sold	0	$0	No quote	No quote
39	DISCK	Discovery Inc - C	-	Sold	0	$0	No quote	No quote
38	BIIB	Biogen Inc	-	Sold	0	$0	No quote	No quote