Asset Manager · CIK 0000807985
Southeastern Asset
Longleaf
Southeastern Asset runs Longleaf, an asset manager overseeing $2.25B in disclosed equity holdings (SEC CIK 0000807985). The latest 13F filing (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 8.9% over the past year. OpenStocks tracks 40 consecutive 13F filings for this manager — every position change, new entry, and exit is logged below.
Portfolio
$2.25B
Positions
53
Quarter
2025Q4
Filings tracked
40
Capital flow per quarter
BuysSellsNet
Latest · 2025Q4
+$233M
Lifetime buys
$4.26B
Lifetime sells
$7.29B
Quarter activity
What changed in 2024Q4 — net new, added, trimmed, exited.
New positions3 names
Added to6 names
Trimmed23 names
- LYVLIVE NATION ENTERTAINMENT IN−869,299$112.6M
- CNXCNX RES CORP−1,684,858$61.8M
- LLYVK*LIBERTY MEDIA CORP DEL−392,821$26.7M
- PYPLPAYPAL HLDGS INC−263,361$22.5M
- G8068LSHARKNINJA INC−143,016$13.9M
- GHCGRAHAM HLDGS CO−13,747$12.0M
- HHHHOWARD HUGHES HOLDINGS INC−102,418$7.9M
- MATMATTEL INC−357,980$6.3M
- MLCOMELCO RESORTS AND ENTMNT LTD−803,457$4.7M
- LLYVA*LIBERTY MEDIA CORP DEL−64,628$4.3M
- HTHTHUAZHU GROUP LTD−128,606$4.2M
- AMGAFFILIATED MANAGERS GROUP IN−22,342$4.1M
- + 11 more…
Recent transactions
Last 20 moves
TRIM
FIDELITY NATL INFORMATION SV
−3,960
~$66.46 · 2025Q4
2026-02-13
ADD
FORTUNE BRANDS HOME & SEC IN
+162,501
~$50.02 · 2025Q4
2026-02-13
NEW
FISERV INC
+3,990
~$67.17 · 2025Q4
2026-02-13
TRIM
AFFILIATED MANAGERS GROUP IN
−1,276
~$288.28 · 2025Q4
2026-02-13
ADD
CLEARWATER PAPER CORP
+443,009
~$17.40 · 2025Q4
2026-02-13
ADD
EMPIRE ST RLTY TR INC
+1,074,096
~$6.52 · 2025Q4
2026-02-13
