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 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.
Portfolio
$2.25B
Positions
53
Quarter
2025Q4
Filings tracked
40
Capital flow per quarter
BuysSellsNet
Latest · 2025Q4
+$233M
Lifetime buys
$4.60B
Lifetime sells
$7.57B
Quarter activity
What changed in 2023Q3 — net new, added, trimmed, exited.
New positions5 names
Added to9 names
- KELKELLOGG CO+561,609$33.4M
- FBINFORTUNE BRANDS HOME & SEC IN+488,003$30.3M
- WBDWARNER BROS DISCOVERY INC+2,338,247$25.4M
- FISFIDELITY NATL INFORMATION SV+273,707$15.1M
- IMKTAINGLES MKTS INC+161,733$12.2M
- OSCROSCAR HEALTH INC+1,488,061$8.3M
- DOOREURMASONITE INTL CORP+34,409$3.2M
- WESTWESTROCK COFFEE CO+327,723$2.9M
- BIOBIO RAD LABS INC+583$209K
Trimmed21 names
- GEGENERAL ELECTRIC CO−922,315$102.0M
- CNXCNX RES CORP−2,783,383$62.8M
- G54050LAZARD LTD−1,042,834$32.3M
- FISVFISERV INC−248,924$28.1M
- HHYATT HOTELS CORP−170,171$18.1M
- FDXFEDEX CORP−63,695$16.9M
- G9618EWHITE MTNS INS GROUP LTD−9,272$13.9M
- IACIAC INTERACTIVECORP NEW−235,440$11.9M
- MSGSMADISON SQUARE GRDN SPRT COR−63,019$11.1M
- ESRTEMPIRE ST RLTY TR INC−1,206,935$9.7M
- WMGWARNER MUSIC GROUP CORP−263,741$8.3M
- SAMBOSTON BEER INC−20,957$8.2M
- + 9 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
