Mason Hawkins's Portfolio

Longleaf Partners 13F holdings

What is Mason Hawkins's portfolio?

Longleaf Partners has disclosed a total of 21 security holdings in their (2025 Q4) SEC 13F filing(s) with portfolio value of $998,350,254.

What stocks does Mason Hawkins own?

In Mason Hawkins's portfolio as of 31 Dec 2025, the top 5 holdings are (IAC) IAC INTERACTIVECORP NEW (7.60%), (MAT) MATTEL INC (6.71%), (REGN) REGENERON PHARMACEUTICALS (6.67%), (CNX) CNX RESOURCES CORP (6.64%) and (EXXRF) EXOR NV (6.62%).

To see the historical data of Longleaf Partners's portfolio holdings please click on the "2025 Q4" dropdown menu and select the date.

To see Longleaf Partners's original 13F reports (2025 Q4), please click on the "important" button.

Portfolio value: $998M+
Period: 2025 Q4
Number of stock: 21
Update: 02 Mar 2026
Important
History
Ticker
Stock
% of
Portfolio
Shares*
Reported
Price*
% difference
Current Price
Value
% (shares)
Activity
% change to
Portfolio
ACI
ALBERTSONS COS INC - CLASS A
5.97%
3,473,855
$17.17
4.72% $16.36
$59,646,090
AVTR
AVANTOR INC
3.54%
3,086,436
$11.46
20.07% $9.16
$35,370,556
-15.20% (-553,218)
-0.64%
BIO
BIO-RAD LABORATORIES-A
4.28%
140,913
$302.99
2.86% $294.32
$42,695,229
-16.90% (-28,666)
-0.87%
CNHI
CNH INDUSTRIAL NV
3.06%
3,308,474
$9.22
-
$30,504,130
CNX
CNX RESOURCES CORP
6.64%
1,803,830
$36.77
8.65% $33.59
$66,326,829
-18.03% (-396,880)
-1.46%
EXXRF
EXOR NV
6.62%
776,425
$85.12
10.47% $76.20
$66,085,516
+19.70% (+127,780)
+1.09%
FDX
FEDEX CORP
5.27%
182,209
$288.86
14.59% $331.00
$52,632,891
-30.94% (-81,644)
-2.36%
FIS
FIDELITY NATIONAL INFO SERV
3.52%
528,594
$66.46
38.38% $40.95
$35,130,357
FBHS
FORTUNE BRANDS HOME & SECURI
3.45%
688,909
$50.02
-
$34,459,228
IAC
IAC INTERACTIVECORP NEW
7.60%
1,939,606
$39.10
-
$75,838,594
+3.96% (+73,839)
+0.29%
KHC
KRAFT HEINZ CO/THE
6.12%
2,521,389
$24.25
6.89% $22.58
$61,143,683
LPX
LOUISIANA-PACIFIC CORP
1.13%
139,811
$80.76
12.58% $70.60
$11,291,136
buy
+1.13%
MICC
MAGNUM ICE CREAM CO NV/THE
5.47%
3,418,974
$15.97
6.90% $17.07
$54,592,491
buy
+5.47%
MAT
MATTEL INC
6.71%
3,376,670
$19.84
29.03% $14.08
$66,993,132
-13.65% (-533,875)
-1.06%
MGM
MGM RESORTS INTERNATIONAL
4.28%
1,171,391
$36.49
30.20% $47.51
$42,744,057
PYPL
PAYPAL HOLDINGS INC
2.75%
470,248
$58.38
29.27% $41.29
$27,453,078
PCH
POTLATCHDELTIC CORP
5.14%
1,290,324
$39.78
-
$51,329,088
+22.28% (+235,096)
+0.94%
PVH
PVH CORP
4.37%
650,590
$67.02
16.08% $77.80
$43,602,541
RYN
RAYONIER INC
5.19%
2,395,437
$21.65
3.05% $20.99
$51,861,211
+6.51% (+146,399)
+0.32%
REGN
REGENERON PHARMACEUTICALS
6.67%
86,305
$771.87
17.67% $635.45
$66,616,240
-12.55% (-12,383)
-0.96%
20 of 21

Shares, change to shares, sold shares - split-adjusted.

Reported price - this doesn't represent the actual buy or sell price.
It is the split-adjusted price of the security as of the last day of the reported period.