Asset Manager · CIK 0000807985

Southeastern Asset

Longleaf

Mid-Size Fund

Southeastern Asset runs Longleaf, an asset manager overseeing $2.25B in disclosed equity holdings (SEC CIK 0000807985). The latest portfolio (2025Q4) discloses 53 positions across 10 sectors, with the largest positions in CNX, MAT and IAC. On a mark-to-market basis the tracked portfolio has returned 4.2% over the past year. OpenStocks tracks 40 consecutive quarterly snapshots for this manager — every position change, new entry, and exit is logged below.

Track Southeastern's filings View holdings

Portfolio

$2.25B

Positions

Quarter

2025Q4

Filings tracked

1Y+4.2%3Y+69.0%5Y+59.3%Full performance →

Quarter

2025Q4 2025Q3 2025Q2 2025Q1 2024Q4 2024Q3 2024Q2 2024Q1 2023Q4 2023Q3 2023Q2 2023Q1

Holdings

Sorted by value · 2025Q4

Sector53 positions

CNXCNX RES CORP

Energy·Oil & Gas E&P

7.76%

of portfolio

Number of shares

4,735,824 sh

Holdings current value

$174.14M

Avg closing price

$16.77

+137.0%

Last action

Trimmed 0.4%

2025Q4

Current $39.76

MATMATTEL INC

Consumer Cyclical·Leisure

7.57%

of portfolio

Number of shares

8,570,328 sh

Holdings current value

$170.04M

Avg closing price

$16.70

Last action

Added 5.0%

2025Q4

Current —

IACIAC INTERACTIVECORP NEW

Communication Services·Internet Content & Information

6.95%

of portfolio

Number of shares

3,989,340 sh

Holdings current value

$155.98M

Avg closing price

$72.74

-40.2%

Last action

Added 44.1%

2025Q4

Current $43.49

REGNREGENERON PHARMACEUTICALS

Healthcare·Biotechnology

5.70%

of portfolio

Number of shares

165,792 sh

Holdings current value

$127.97M

Avg closing price

$624.70

+19.4%

Last action

Added 14.7%

2025Q4

Current $746.00

PCHPOTLATCHDELTIC CORPORATIONREIT

5.60%

of portfolio

Number of shares

3,162,963 sh

Holdings current value

$125.82M

Avg closing price

$38.38

Last action

Added 48.4%

2025Q4

Current —

RYNRAYONIER INCREIT

Real Estate·REIT - Specialty

5.48%

of portfolio

Number of shares

5,678,941 sh

Holdings current value

$122.95M

Avg closing price

$24.05

-12.6%

Last action

Added 26.3%

2025Q4

Current $21.03

KHCKRAFT HEINZ CO

Consumer Defensive·Packaged Foods

4.85%

of portfolio

Number of shares

4,488,116 sh

Holdings current value

$108.84M

Avg closing price

$28.18

-19.8%

Last action

Added 23.4%

2025Q4

Current $22.59

ACIALBERTSONS COS INC

Consumer Defensive·Grocery Stores

4.72%

of portfolio

Number of shares

6,166,712 sh

Holdings current value

$105.88M

Avg closing price

$18.33

-10.7%

Last action

Added 24.7%

2025Q4

Current $16.37

FDXFEDEX CORP

Industrials·Integrated Freight & Logistics

4.62%

of portfolio

Number of shares

359,122 sh

Holdings current value

$103.74M

Avg closing price

$204.89

+85.9%

Last action

Trimmed 4.1%

2025Q4

Current $380.88

MGMMGM RESORTS INTERNATIONAL

Consumer Cyclical·Resorts & Casinos

3.30%

of portfolio

Number of shares

2,033,369 sh

Holdings current value

$74.20M

Avg closing price

$29.29

Last action

Added 16.3%

2025Q4

Current —

BIOBIO RAD LABS INC

Healthcare·Medical Devices

3.07%

of portfolio

Number of shares

227,630 sh

Holdings current value

$68.97M

Avg closing price

$367.08

Last action

Trimmed 4.1%

2025Q4

Current —

ACMRACM RESH INC

Technology·Semiconductor Equipment & Materials

2.95%

of portfolio

Number of shares

1,680,181 sh

Holdings current value

$66.28M

Avg closing price

$29.83

Last action

Added 13.1%

2025Q4

Current —

G9618E107WHITE MTNS INS GROUP LTD

2.93%

of portfolio

Number of shares

31,652 sh

Holdings current value

$65.77M

Avg closing price

$1340

Last action

Added 50.1%

2025Q3

Current —

FBINFORTUNE BRANDS HOME & SEC IN

Industrials·Building Products & Equipment

2.62%

of portfolio

Number of shares

1,178,103 sh

Holdings current value

$58.93M

Avg closing price

$54.49

-29.7%

Last action

Added 16.0%

2025Q4

Current $38.28

PVHPVH CORPORATION

Consumer Cyclical·Apparel Manufacturing

2.20%

of portfolio

Number of shares

736,935 sh

Holdings current value

$49.39M

Avg closing price

$70.94

+26.1%

Last action

Trimmed 21.2%

2025Q4

Current $89.47

GLIBKGCI LIBERTY INC

Communication Services·Telecom Services

2.19%

of portfolio

Number of shares

1,321,110 sh

Holdings current value

$49.16M

Avg closing price

$37.25

Last action

Added 53.0%

2025Q4

Current —

FISFIDELITY NATL INFORMATION SV

Technology·Information Technology Services

1.84%

of portfolio

Number of shares

622,149 sh

Holdings current value

$41.35M

Avg closing price

$55.57

-12.5%

Last action

Trimmed 0.6%

2025Q4

Current $48.62

TRIPTRIPADVISOR INC

Consumer Cyclical·Travel Services

1.84%

of portfolio

Number of shares

2,838,257 sh

Holdings current value

$41.33M

Avg closing price

$13.93

-19.4%

Last action

Added 21.0%

2025Q4

Current $11.23

AVTRAVANTOR INC

Healthcare·Medical Instruments & Supplies

1.81%

of portfolio

Number of shares

3,548,518 sh

Holdings current value

$40.67M

Avg closing price

$12.48

Last action

Trimmed 31.1%

2025Q4

Current —

GHCGRAHAM HLDGS CO

Consumer Defensive·Education & Training Services

1.75%

of portfolio

Number of shares

35,721 sh

Holdings current value

$39.24M

Avg closing price

$527.94

+112.7%

Last action

Added 1.0%

2025Q4

Current $1123

DISDISNEY WALT CO

Communication Services·Entertainment

1.61%

of portfolio

Number of shares

317,175 sh

Holdings current value

$36.09M

Avg closing price

$123.00

Last action

Added 11.0%

2025Q4

Current —

N20944109CNH INDL N V

1.53%

of portfolio

Number of shares

3,716,808 sh

Holdings current value

$34.27M

Avg closing price

$12.34

Last action

Trimmed 1.2%

2025Q3

Current —

SHENSHENANDOAH TELECOMMUNICATION

Communication Services·Telecom Services

1.51%

of portfolio

Number of shares

2,940,296 sh

Holdings current value

$33.99M

Avg closing price

$12.96

Last action

Added 20.1%

2025Q4

Current —

G8068L108SHARKNINJA INC

1.44%

of portfolio

Number of shares

289,266 sh

Holdings current value

$32.37M

Avg closing price

$53.63

Last action

Trimmed 43.0%

2025Q4

Current —

PYPLPAYPAL HLDGS INC

Financial Services·Credit Services

1.44%

of portfolio

Number of shares

554,074 sh

Holdings current value

$32.35M

Avg closing price

$66.84

-25.5%

Last action

Trimmed 0.9%

2025Q4

Current $49.81

G27907107DOLE PLC

1.29%

of portfolio

Number of shares

1,933,708 sh

Holdings current value

$28.99M

Avg closing price

$12.86

Last action

Trimmed 21.0%

2025Q3

Current —

SAMBOSTON BEER INC

Consumer Defensive·Beverages - Brewers

1.29%

of portfolio

Number of shares

147,997 sh

Holdings current value

$28.88M

Avg closing price

$289.26

-15.5%

Last action

Added 35.5%

2025Q4

Current $244.52

ALXALEXANDERS INCREIT

Real Estate·REIT - Retail

1.19%

of portfolio

Number of shares

122,712 sh

Holdings current value

$26.74M

Avg closing price

$229.74

Last action

Added 93.2%

2025Q3

Current —

BATRKATLANTA BRAVES HLDGS INC

Communication Services·Entertainment

1.18%

of portfolio

Number of shares

671,014 sh

Holdings current value

$26.47M

Avg closing price

$35.73

Last action

Trimmed 21.2%

2025Q2

Current —

ESRTEMPIRE ST RLTY TR INCREIT

Real Estate·REIT - Diversified

1.08%

of portfolio

Number of shares

3,704,236 sh

Holdings current value

$24.15M

Avg closing price

$7.79

Last action

Added 40.8%

2025Q4

Current —

CLWCLEARWATER PAPER CORP

Basic Materials·Paper & Paper Products

1.07%

of portfolio

Number of shares

1,380,930 sh

Holdings current value

$24.03M

Avg closing price

$24.08

Last action

Added 47.2%

2025Q4

Current —

N5505D105MAGNUM ICE CREAM CO NV

1.01%

of portfolio

Number of shares

1,430,351 sh

Holdings current value

$22.67M

Avg closing price

$15.85

Last action

New holding

2025Q4

Current —

LPXLOUISIANA PAC CORP

Industrials·Building Products & Equipment

0.98%

of portfolio

Number of shares

272,123 sh

Holdings current value

$21.98M

Avg closing price

$80.76

Last action

New holding

2025Q4

Current —

EDUNEW ORIENTAL ED & TECHNOLOGYADR

Consumer Defensive·Education & Training Services

0.93%

of portfolio

Number of shares

379,561 sh

Holdings current value

$20.89M

Avg closing price

$55.03

+6.0%

Last action

New holding

2025Q4

Current $58.33

KSPIKASPI KZ JSCADR

Technology·Software - Infrastructure

0.84%

of portfolio

Number of shares

240,628 sh

Holdings current value

$18.80M

Avg closing price

$83.14

-2.3%

Last action

Added 34.8%

2025Q4

Current $81.23

MLCOMELCO RESORTS AND ENTMNT LTDADR

Consumer Cyclical·Resorts & Casinos

0.61%

of portfolio

Number of shares

1,797,254 sh

Holdings current value

$13.61M

Avg closing price

$7.44

Last action

Trimmed 10.6%

2025Q4

Current —

HTHTHUAZHU GROUP LTDADR

Consumer Cyclical·Lodging

0.48%

of portfolio

Number of shares

231,372 sh

Holdings current value

$10.89M

Avg closing price

$37.82

Last action

Trimmed 73.6%

2025Q4

Current —

GLIBAGCI LIBERTY INC

0.13%

of portfolio

Number of shares

80,675 sh

Holdings current value

$2.97M

Avg closing price

$37.56

Last action

New holding

2025Q3

Current —

CAHCARDINAL HEALTH INC

Healthcare·Medical Distribution

0.08%

of portfolio

Number of shares

8,649 sh

Holdings current value

$1.78M

Avg closing price

$58.97

+261.4%

Last action

Trimmed 18.7%

2025Q4

Current $213.10

XPOXPO LOGISTICS INC

Industrials·Trucking

0.08%

of portfolio

Number of shares

13,012 sh

Holdings current value

$1.77M

Avg closing price

$80.14

Last action

Trimmed 18.6%

2025Q4

Current —

AMGAFFILIATED MANAGERS GROUP IN

Financial Services·Asset Management

0.07%

of portfolio

Number of shares

5,562 sh

Holdings current value

$1.60M

Avg closing price

$128.22

+133.5%

Last action

Trimmed 18.7%

2025Q4

Current $299.41

HSICHENRY SCHEIN INC

Healthcare·Medical Distribution

0.06%

of portfolio

Number of shares

17,038 sh

Holdings current value

$1.29M

Avg closing price

$72.94

+5.9%

Last action

Trimmed 18.7%

2025Q4

Current $77.21

HHYATT HOTELS CORP

Consumer Cyclical·Lodging

0.06%

of portfolio

Number of shares

7,733 sh

Holdings current value

$1.24M

Avg closing price

$57.33

Last action

Trimmed 18.7%

2025Q4

Current —

LYVLIVE NATION ENTERTAINMENT IN

Communication Services·Entertainment

0.05%

of portfolio

Number of shares

8,434 sh

Holdings current value

$1.20M

Avg closing price

$85.92

+86.9%

Last action

Trimmed 18.7%

2025Q4

Current $160.59

ENOVENOVIS CORPORATION

Healthcare·Medical Devices

0.05%

of portfolio

Number of shares

44,258 sh

Holdings current value

$1.18M

Avg closing price

$43.65

Last action

Trimmed 18.7%

2025Q4

Current —

LAZLAZARD INC

Financial Services·Capital Markets

0.04%

of portfolio

Number of shares

18,608 sh

Holdings current value

$903.6K

Avg closing price

$41.18

+17.4%

Last action

Trimmed 18.6%

2025Q4

Current $48.33

MSGSMADISON SQUARE GRDN SPRT COR

Communication Services·Entertainment

0.04%

of portfolio

Number of shares

3,218 sh

Holdings current value

$832.3K

Avg closing price

$176.82

Last action

Trimmed 20.1%

2025Q4

Current —

RXORXO INC

Industrials·Trucking

0.02%

of portfolio

Number of shares

43,731 sh

Holdings current value

$552.8K

Avg closing price

$18.90

Last action

Trimmed 19.0%

2025Q4

Current —

ACHOWENS & MINOR INC NEW

Healthcare·Medical Distribution

0.02%

of portfolio

Number of shares

181,735 sh

Holdings current value

$508.9K

Avg closing price

$7.21

Last action

Trimmed 18.7%

2025Q4

Current —

STZCONSTELLATION BRANDS INC

Consumer Defensive·Beverages - Brewers

0.02%

of portfolio

Number of shares

3,661 sh

Holdings current value

$505.1K

Avg closing price

$134.67

+22.0%

Last action

New holding

2025Q3

Current $164.25

G21810109CLARIVATE PLC

0.02%

of portfolio

Number of shares

121,927 sh

Holdings current value

$407.2K

Avg closing price

$3.83

Last action

New holding

2025Q3

Current —

HDBHDFC BANK LTDADR

Financial Services·Banks - Regional

0.02%

of portfolio

Number of shares

10,462 sh

Holdings current value

$382.3K

Avg closing price

$52.95

Last action

Trimmed 79.0%

2025Q4

Current —

FISVFISERV INC

0.01%

of portfolio

Number of shares

3,990 sh

Holdings current value

$268.0K

Avg closing price

$102.90

-39.3%

Last action

New holding

2025Q4

Current $62.44

Portfolio heatmap

Box size = % of portfolio · color = return since filing

WHITE MTNS INS GROUP LTD

2.93%

CNH INDL N V

1.53%

SHEN

1.51%

SHARKNINJA INC

1.44%

29 more

14.16%

Sector exposure

Share of dollar value across the latest reported portfolio. Unclassified positions excluded.

Consumer Cyclical7 pos$360.7M18.7%
Consumer Defensive6 pos$304.2M15.8%
Communication Services7 pos$303.7M15.7%
Healthcare7 pos$242.4M12.5%
Industrials5 pos$187.0M9.7%
Energy1 pos$174.1M9.0%
Real Estate3 pos$173.8M9.0%
Technology3 pos$126.4M6.5%
Financial Services4 pos$35.2M1.8%
Basic Materials1 pos$24.0M1.2%

(14.0% unclassified, excluded from %)