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Southeastern Asset Management (Longleaf)

Mason Hawkins

CIK 0000807985 ↗ ⓘCIK: The SEC's ID number for a filer (Central Index Key). Every manager, company and fund has one; it is the surest way to find all of someone's filings on EDGAR, even when names change or are spelled differently. Guide View this SEC filing ↗ All SEC filings ↗ Filed Aug 14, 2026
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In plain English: this page lists every stock Mason Hawkins's fund told the SEC it owned at the end of the quarter, biggest first, and what changed since the quarter before — "New" means they bought it for the first time, "Sold" means they sold all of it. The list is at least 6 weeks old, and it is only part of their investments (no cash, bonds or bets against stocks).

Educational and informational only, not personalized investment advice. Based on public filings that may be delayed or contain errors; verify with the original filings. Disclaimer

Biggest moves · Q2 2026 -$81.64M ACMR+$76.29M ABT (new)-$45.38M BIO (sold)-$41.12M PPLI
Reported value ⓘTotal of long stock positions in this 13F. Options are listed separately and not included.
$1.92B
Q2 2026
Quarter change
-5.7%
vs Q1 2026 ($2.03B)
Holdings
47
Top-10 weight 62.7%
Activity
2 new · 4 sold out
8 added to · 24 trimmed

Investing style at a glance · Q2 2026

Worked out from this 13F only (long stock positions). ⓘConcentration: The share of a portfolio in its 10 largest positions. High = a few big bets; low = spread out. Guide ⓘTurnover: How many positions were opened or closed this quarter compared with the number held. Guide

Portfolio value over time

Reported 13F value per quarter

Chart: Portfolio value over time

Sector allocation

Q2 2026

Chart: Sector allocation

Top holdings over time

Share of the portfolio each quarter (current top 5)

Chart: Top holdings over time

Quarter-by-quarter activity

Positions bought (new or added) vs sold (trimmed or exited)

Chart: Quarter-by-quarter activity

Insights

Adds vs. trims · Q2 2026

Largest estimated dollar adds (green) and trims (red) this quarter. Click a bar to open the stock.

Chart: adds and trims

Sector allocation over time

Share of the reported portfolio in each sector, by quarter

Chart: sector allocation over time

Performance context

Reported 13F value vs. the S&P 500 between the same quarter-end dates, and a hypothetical “copy the top 10” strategy vs. SPY. Prices through Oct 27, 2026.

Reported value change ⓘChange in total reported 13F value from Sep 30, 2024 to Jun 30, 2026. Includes deposits/withdrawals and is not the fund’s return.
-9.6%
Sep 30, 2024 – Jun 30, 2026
S&P 500, same dates
+30.1%
Price index (^GSPC)
Hypothetical top-10 ⓘBuy the reported top 10 (value-weighted) at the close of the first trading day after each filing, hold until the next filing. Covers 98% of top-10 value on average (positions with price data).
+5.2%
Nov 15, 2024 – Oct 27, 2026
SPY, same days
+34.4%
Total return (dividends included)

Read these numbers carefully: “Reported value change” is the change in the total value of the shares on this manager’s 13F — it is not the fund’s investment return. The total also moves when investors put money into the fund or take it out, and a 13F covers only long US-listed shares — no shorts, bonds, cash or foreign stocks — so the fund’s actual return can be higher or lower.

Reported value vs. S&P 500 (cumulative)

Chart: reported value vs S&P 500

Hypothetical top-10 vs. SPY (cumulative)

Chart: hypothetical top-10 vs SPY
Quarter-by-quarter numbers
QuarterReported valueValue changeS&P 500Top-10 heldTop-10SPYCoverage
Q2 2026$1.92B -5.7% +14.9% Aug 17, 2026 – Oct 27, 2026 (open) -0.1% -0.1% 100%
Q1 2026$2.03B -9.5% -4.6% May 18, 2026 – Aug 17, 2026 +4.9% +4.9% 100%
Q4 2025$2.25B +14.6% +2.3% Feb 17, 2026 – May 18, 2026 -4.6% +8.5% 90%
Q3 2025$1.96B -1.2% +7.8% Nov 17, 2025 – Feb 17, 2026 +6.7% +2.9% 91%
Q2 2025$1.98B +5.7% +10.6% Aug 15, 2025 – Nov 17, 2025 +5.1% +3.7% 100%
Q1 2025$1.88B -11.4% -4.6% May 16, 2025 – Aug 15, 2025 -1.6% +8.6% 100%
Q4 2024$2.12B -0.1% +2.1% Feb 18, 2025 – May 16, 2025 +0.2% -2.5% 100%

Not investment advice. Hypothetical, not actual results. 13F filings arrive up to 45 days after quarter end, so anyone copying them buys late; the top-10 figures start the day after each filing was published. Reported value changes include deposits and withdrawals and are not the fund's return. Costs, taxes and positions without price data are ignored. Past performance does not predict future results. How this is calculated

Holdings

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

Ticker Company Sector Shares Value ↓ % of portfolio Change Δ shares Δ shares % Est. Δ value ⓘChange in shares × this quarter's price
RYN Rayonier Inc Real Estate 9.49M $201.98M 10.5% Reduced -1.3M -11.8% -$27.05M
MAT Mattel Inc Consumer Discretionary 12.32M $171.04M 8.9% Reduced -489.6K -3.8% -$6.80M
CNX CNX Resources Corp Energy 4.66M $158.22M 8.3% Added +648.9K +16.2% +$22.02M
PPLI People Inc Information Technology 3.13M $144.57M 7.5% Reduced -890.9K -22.1% -$41.12M
ACI Albertsons Companies, Inc (Class A) Consumer Staples 8.64M $116.85M 6.1% Added +1.2M +16.4% +$16.46M
REGN Regeneron Pharmaceuticals, Inc Health Care 152.32K $94.98M 5.0% Added +21.7K +16.6% +$13.51M
FBIN Fortune Brands Innovations, Inc Materials 1.69M $92.62M 4.8% Reduced -466.2K -21.6% -$25.59M
KHC Kraft Heinz Co Consumer Staples 3.61M $85.22M 4.4% Reduced -340.8K -8.6% -$8.05M
ABT Abbott Laboratories Health Care 840.75K $76.29M 4.0% New +840.7K — +$76.29M
FDX Fedex Corp Industrials 194.83K $61.01M 3.2% Reduced -52.7K -21.3% -$16.49M
MGM MGM Resorts International Consumer Discretionary 1.17M $55.91M 2.9% Reduced -493.4K -29.7% -$23.59M
ESRT Empire State Realty Trust, Inc (Class A) Real Estate 8.70M $47.05M 2.5% Added +2.2M +34.3% +$12.03M
AVTR Avantor, Inc Information Technology 4.73M $46.78M 2.4% Added +1.2M +34.2% +$11.93M
PVH PVH Corp Consumer Discretionary 629.90K $46.78M 2.4% Reduced -107.0K -14.5% -$7.95M
GLIBK Liberty Capital Corp (Class C) Communication Services 1.94M $41.73M 2.2% Added +614.3K +46.5% +$13.24M
CNH CNH Industrial N.V. Industrials 3.52M $39.51M 2.1% Reduced -198.5K -5.3% -$2.23M
SHEN Shenandoah Telecommunications Co Communication Services 2.62M $39.46M 2.1% Reduced -323.5K -11.0% -$4.88M
WTM White Mountains Insurance Group Ltd Financials 17.10K $35.46M 1.8% Reduced -1.8K -9.3% -$3.65M
GHC Graham Holdings Co (Class B) Consumer Discretionary 29.16K $33.28M 1.7% Reduced -8.6K -22.8% -$9.82M
BATRK Atlanta Braves Holdings, Inc (Class C) Consumer Discretionary 605.09K $31.40M 1.6% Reduced -65.9K -9.8% -$3.42M
TRIP TripAdvisor, Inc Information Technology 2.26M $30.96M 1.6% Reduced -2.3M -50.9% -$32.08M
FIS Fidelity National Information Services, Inc Financials 769.14K $29.90M 1.6% Reduced -58.4K -7.1% -$2.27M
ALX Alexanders Inc Real Estate 99.01K $27.28M 1.4% Held 0 0.0% $0
SAM Boston Beer Co Inc (Class A) Consumer Staples 146.04K $25.85M 1.3% Added +27.6K +23.3% +$4.89M
CLW Clearwater Paper Corp Materials 1.54M $24.14M 1.3% Added +14.1K +0.9% +$220.54K
DOLE Dole plc Consumer Staples 1.75M $24.04M 1.3% Reduced -181.6K -9.4% -$2.49M
TME Tencent Music Entertainment Group Communication Services 2.31M $19.25M 1.0% New +2.3M — +$19.25M
EDU New Oriental Education & Technology Group Inc Consumer Discretionary 411.60K $18.90M 1.0% Reduced -110.7K -21.2% -$5.08M
KSPI Joint Stock Co Kaspi.kz Industrials 213.00K $18.45M 1.0% Reduced -27.6K -11.5% -$2.39M
ACMR ACM Research, Inc (Class A) Industrials 139.48K $17.70M 0.9% Reduced -643.4K -82.2% -$81.64M
MICC Magnum Ice Cream Co N.V. Consumer Staples 1.00M $17.44M 0.9% Reduced -618.0K -38.2% -$10.76M
SN SharkNinja, Inc Consumer Discretionary 63.23K $9.63M 0.5% Reduced -187.4K -74.8% -$28.54M
HTHT H World Group Ltd Consumer Discretionary 205.68K $8.58M 0.4% Reduced -25.7K -11.1% -$1.07M
MLCO Melco Resorts & Entertainment LTD Consumer Discretionary 1.61M $8.47M 0.4% Reduced -189.4K -10.5% -$998.14K
AMG Affiliated Managers Group, Inc Financials 5.56K $1.88M 0.1% Held 0 0.0% $0
CAH Cardinal Health Inc Health Care 7.34K $1.74M 0.1% Held 0 0.0% $0
GLIBA Liberty Capital Corp Communication Services 72.69K $1.59M 0.1% Reduced -8.0K -9.9% -$174.83K
LYV Live Nation Entertainment, Inc Consumer Discretionary 8.43K $1.54M 0.1% Held 0 0.0% $0
H Hyatt Hotels Corp (Class A) Consumer Discretionary 7.73K $1.50M 0.1% Held 0 0.0% $0
HSIC Henry Schein Inc Industrials 17.04K $1.42M 0.1% Held 0 0.0% $0
XPO XPO, Inc Industrials 6.34K $1.30M 0.1% Held 0 0.0% $0
MSGK MSG Knickerbockers Corp (Class A) Unclassified 3.22K $1.29M 0.1% Held 0 0.0% $0
RXO RXO, Inc Industrials 43.73K $1.21M 0.1% Held 0 0.0% $0
PYPL PayPal Holdings, Inc Financials 22.46K $969.95K 0.1% Held 0 0.0% $0
ENOV Enovis CORP Health Care 44.26K $916.14K 0.0% Held 0 0.0% $0
LAZ Lazard, Inc Financials 18.61K $780.42K 0.0% Held 0 0.0% $0
HDB Hdfc Bank Ltd Financials 10.46K $270.23K 0.0% Held 0 0.0% $0

Sold out this quarter

CSV Excel
Column filters

Numbers accept 1.5M, 2B, 250K. Percent columns take percent (5 = 5%).

Ticker Company Sector Shares sold Value last quarter ↓
BIO Bio-Rad Laboratories, Inc (Class A) Information Technology -162.8K $45.38M
STZ Constellation Brands, Inc (Class A) Consumer Staples -3.7K $549.15K
CLVT Clarivate plc Information Technology -121.9K $308.48K
FISV Fiserv Inc Industrials -4.0K $222.64K
13F filings on record (8)
QuarterFormFiledTypeRowsLong value
Q2 202613F-HRAug 14, 2026Original47$1.92BSEC ↗
Q1 202613F-HRMay 15, 2026Original49$2.03BSEC ↗
Q4 202513F-HRFeb 13, 2026Original53$2.25BSEC ↗
Q3 202513F-HRNov 14, 2025Original49$1.96BSEC ↗
Q2 202513F-HRAug 14, 2025Original49$1.98BSEC ↗
Q1 202513F-HRMay 15, 2025Original43$1.88BSEC ↗
Q4 202413F-HRFeb 14, 2025Original44$2.12BSEC ↗
Q3 202413F-HRNov 14, 2024Original45$2.12BSEC ↗