Mason Hawkins
Southeastern Asset Management
Founded Southeastern Asset Management, home of the Longleaf funds, and has since passed on the day-to-day management.
13F portfolio value
Q2 2026
$1.92B
1-year growth
-3.4%
2-year growth
-16.5%
Positions
47
Top 10 share
62.7%
Quarterly turnover
9.9%
Last filed
Aug 14, 2026
Q2 2026: summary
MakklerAI- Southeastern’s portfolio was $1.9B across 47 positions; its top 10 holdings made up 62.7%, with 9.9% turnover.
- CNX rose 16.2% in shares to an 8.3% portfolio weight, up from 7.6% in the prior quarter; ACI increased 16.4% to 6.1%.
- ABT was a new $76M position at 4.0% of the portfolio; TME was also new at $19M and 1.0%.
- ACMR was cut 82.2%, while RYN remained the largest holding at 10.5% after an 11.8% share reduction.
PROEstimated trade prices are PRO
See the average price in the quarter of each buy and sale and the move since. The first row of each group is open as a preview.
New positions 2
Est. buy price PRO
ABTNewAbbott Laboratories4.0%
3.98 pt impact
$91.27
+12.4% since
TMENewTencent Music Entertainm-Adr1.0%
1.00 pt impact
Added to 8
Est. buy price PRO
CNX+16.2%CNX Resources Corporation8.3%
1.15 pt impact
$36.05
-2.0% since
ACI+16.4%Albertsons Companies, Inc. Class A6.1%
0.86 pt impact
REGN+16.6%Regeneron Pharmaceuticals, Inc.5.0%
0.70 pt impact
GLIBK+46.5%Liberty Capital Corporation Class C2.2%
0.69 pt impact
ESRT+34.3%Empire State Realty Trust, Inc. Class A2.5%
0.63 pt impact
AVTR+34.2%Avantor, Inc.2.4%
0.62 pt impact
SAM+23.3%Boston Beer Company, Inc. Class A1.3%
0.26 pt impact
CLW+0.9%Clearwater Paper Corporation1.3%
0.01 pt impact
Trimmed 24
Est. sell price PRO
ACMR-82.2%ACM Research, Inc. Class A0.9%
-4.26 pt impact
$70.71
-8.3% since
PPLI-22.1%People Incorporated7.5%
-2.15 pt impact
TRIP-50.9%TripAdvisor, Inc.1.6%
-1.67 pt impact
SN-74.8%SharkNinja, Inc.0.5%
-1.49 pt impact
RYN-11.8%Rayonier Inc.10.5%
-1.41 pt impact
FBIN-21.6%Fortune Brands Innovations, Inc.4.8%
-1.33 pt impact
MGM-29.7%MGM Resorts International2.9%
-1.23 pt impact
FDX-21.3%FedEx Corporation3.2%
-0.86 pt impact
- MAMagnum Ice Cream Co Nv-38.2%Magnum Ice Cream Co Nv
0.9%
-0.56 pt impact
GHC-22.8%Graham Holdings Co. Class B1.7%
-0.51 pt impact
KHC-8.6%Kraft Heinz Company4.4%
-0.42 pt impact
PVH-14.5%PVH Corp.2.4%
-0.41 pt impact
+12 more positions
Sold out 4
Est. sell price PRO
BIOSoldBio-Rad Laboratories, Inc. Class A2.2%
-2.23 pt impact
$283.64
+28.2% since
STZSoldConstellation Brands, Inc. Class A<0.1%
-0.03 pt impact
CLVTSoldClarivate PLC<0.1%
-0.02 pt impact
FISVSoldFiserv, Inc.<0.1%
-0.01 pt impact
MakklerAI
Ask MakklerAI about Mason Hawkins's portfolio
Explore this quarter's moves and where each position stands against its estimated buy price and Makkler Fair Value. Answers are based on the 13F and today's prices.