Mason Hawkins
Southeastern Asset Management
Mason Hawkins has been Chairman and Chief Executive Officer Southeastern Asset Management since 1975, and he and his partners manage the Longleaf Partners Funds.
Shares Held
Asset Size
% Top 10
138
$3.02B
45.08%
Latest2025Q3
Top BuysCUERVO (MX)
Top Sells0288 (HK)
Stock Trading
All
Buys
Sells
No.
Name
Action
Shares Traded
% Change
Shares Held
Mkt Value (Date)
Report Date
Watchlist
Rayonier Inc (US)
RYN
Buy
+5.08M
+47.50%
10.70M
$221.93M
2026-03-31
Mattel Inc (US)
MAT
Buy
+4.24M
+34.00%
12.49M
$186.16M
2026-03-31
Empire State Realty Trust Inc (US)
ESRT
Buy
+2.77M
+47.50%
5.83M
$33.66M
2026-03-31
4
Tripadvisor Inc (US)
TRIP
Buy
+1.76M
+36.60%
4.81M
$49.02M
2026-03-31
5
Albertsons Companies Inc (US)
ACI
Buy
+1.25M
+16.00%
7.81M
$125.16M
2026-03-31
6
Fortune Brands Innovations Inc (US)
FBIN
Buy
+975.18K
+46.20%
2.11M
$83.31M
2026-03-31
7
ACM Research Inc (US)
ACMR
Sell
-897.28K
-41.90%
347.59K
$30.81M
2026-03-31
8
CNX Resources Corp (US)
CNX
Sell
-721.71K
-12.00%
4.59M
$154.74M
2026-03-31
9
Kraft Heinz Co (US)
KHC
Sell
-539.40K
-11.40%
3.64M
$88.81M
2026-03-31
10
PayPal Holdings Inc (US)
PYPL
Sell
-531.61K
-48.90%
23.31K
$1.02M
2026-03-31
