Mason Hawkins
Longleaf Partners
Longleaf Partners Portfolio 13F
Mason Hawkins Holdings Activity
- Portfolio value:
- $1.13B≈ (-$49M≈)
- Previous value:
- $1.18B≈
- # of changes:
- 14
- New positions:
- 3
- Reported for:
- 30 Sep 2025 (Q3)
- Latest filing date:
- 26 Nov 2025
Longleaf Partners has disclosed a total of 14 changes to the portfolio in the (2025 Q3) SEC report(s): increased the number of shares of 3, bought 3 totally new, decreased the number of shares of 5 and completely sold out 3 position(s).
What stocks did Mason Hawkins buy in 2025 Q3?
During 2025 Q3 Mason Hawkins has bought 6 securities out of which top 5 purchases (by % change to portfolio) were (CNX) CNX Resources Corp (added shares +3.25%), (MAT) Mattel Inc (added shares +12.91%), (ACI) Albertsons Companies (added shares +41.65%), (RYN) Rayonier Inc (new buy) and (AVTR) Avantor Inc (new buy).
14 results
| History | Ticker | Name |
% or activity |
Shares change |
Shares held after* |
% change to portfolio |
Reported price* |
% difference current price* |
% of portfolio |
Held since* | Held for* |
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|
Rayonier Inc
|
new
|
+2,249,038
|
2,249,038
|
+5.27%
|
$26.54
|
-18.44%($21.64)
|
5.27%
|
2025 Q3
|
≈ 0.25 years
|
|
|
|
Avantor Inc
|
new
|
+3,639,654
|
3,639,654
|
+4.01%
|
$12.48
|
+9.62%($13.68)
|
4.01%
|
2025 Q3
|
≈ 0.25 years
|
|
|
|
PotlatchDeltic Corp
|
new
|
+1,055,228
|
1,055,228
|
+3.79%
|
$40.75
|
|
3.79%
|
2025 Q3
|
≈ 0.25 years
|
|
|
|
Albertsons Companies
|
+41.65%
|
+1,021,431
|
3,473,855
|
+1.58%
|
$17.51
|
-33.84%($11.58)
|
5.37%
|
2024 Q3
|
≈ 1.25 years
|
|
|
|
Mattel Inc
|
+12.91%
|
+447,058
|
3,910,545
|
+0.66%
|
$16.83
|
-10.55%($15.06)
|
5.81%
|
2019 Q3
|
≈ 6.25 years
|
|
|
|
CNX Resources Corp
|
+3.25%
|
+69,205
|
2,200,710
|
+0.2%
|
$32.12
|
+9.22%($35.08)
|
6.24%
|
2019 Q3
|
≈ 6.25 years
|
|
|
|
IAC/INTERACTIVECORP
|
-4.50%
|
-87,840
|
1,865,767
|
-0.25%
|
$34.07
|
+20.63%($41.10)
|
5.61%
|
2021 Q3
|
≈ 4.25 years
|
|
|
|
Regeneron Pharmaceuticals Inc
|
-11.96%
|
-13,407
|
98,688
|
-0.64%
|
$562.27
|
+34.93%($758.68)
|
4.90%
|
2025 Q1
|
≈ 0.75 years
|
|
|
|
Fidelity National Information Services Inc
|
-19.36%
|
-126,937
|
528,594
|
-0.71%
|
$65.94
|
-32.38%($44.59)
|
3.08%
|
2023 Q1
|
≈ 2.75 years
|
|
|
|
Bio-Rad Laboratories Inc
|
-22.80%
|
-50,088
|
169,579
|
-1.19%
|
$280.39
|
+15.93%($325.05)
|
4.20%
|
2023 Q2
|
≈ 2.50 years
|
|
* Shares, change to shares, sold shares, shares held after: 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.
* Current price: this can be a delayed price and may not reflect the real-time market value, however it is too close.
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* Held since / Held for: calculated since the latest "new buy" position. If the security was previously exited and re-entered, only the most recent holding period is counted.