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Livermore
Livermore
ZHEN

Southeastern Asset Management (Longleaf)

Superinvestor

Southeastern Asset Management Inc

SEC CIK
0000807985
Manager
Mason Hawkins
Style
Value
Latest filing
Aug 14, 2026

The latest 13F from Southeastern Asset Management (Longleaf) covers Q2 2026 (filed Aug 14, 2026): 47 long positions worth $1.92B. The top 10 holdings make up 62.7% of the portfolio, and the largest is Rayonier Inc (RYN) at 10.5%. Livermore has 22 filings on Form 13F from this institution, going back to Q1 2021.

What changed in Q2 2026

Share counts compared with Q1 2026: how many positions were new, added to, reduced or sold out, and the biggest buys and sells. Dollar amounts are estimated at the quarter-end prices implied by the filing.

Full comparison
New
2
Est. +$95.5M
Added
8
Est. +$94.3M
Reduced
24
Est. −$348.1M
Sold out
4
Est. −$46.5M

Top 5 holdings

Share of this quarter's portfolio value

  1. RYNRayonier Inc
    10.5%$202.0MHistory
  2. MATMattel Inc
    8.9%$171.0MHistory
  3. CNXCNX Resources Corp
    8.3%$158.2MHistory
  4. PPLIPeople Inc
    7.5%$144.6MHistory
  5. ACIAlbertsons Companies, Inc.
    6.1%$116.8MHistory

Biggest buys

New and added positions, by estimated amount bought

  1. ABTAbbott Laboratories
    +$76.3MNewHistory
  2. CNXCNX Resources Corp
    +$22.0MAddedHistory
  3. TMETencent Music Entertainment Group
    +$19.2MNewHistory
  4. ACIAlbertsons Companies, Inc.
    +$16.5MAddedHistory
  5. REGNRegeneron Pharmaceuticals, Inc.
    +$13.5MAddedHistory

Largest weight increases

New and added positions, by percentage points of the portfolio gained

  1. ABTAbbott Laboratories
    +3.98 pp0.0% → 4.0%History
  2. AVTRAvantor, Inc.
    +1.08 pp1.4% → 2.4%History
  3. TMETencent Music Entertainment Group
    +1.00 pp0.0% → 1.0%History
  4. ESRTEmpire State Realty Trust, Inc.
    +0.80 pp1.7% → 2.5%History
  5. CNXCNX Resources Corp
    +0.64 pp7.6% → 8.3%History

Biggest sells

Reduced and sold-out positions, by estimated amount sold

  1. ACMRACM Research, Inc.
    −$81.6MReducedHistory
  2. BIOBio-Rad Laboratories, Inc.
    −$45.4MSold outHistory
  3. PPLIPeople Inc
    −$41.1MReducedHistory
  4. TRIPTripAdvisor, Inc.
    −$32.1MReducedHistory
  5. SNSharkNinja, Inc.
    −$28.5MReducedHistory

Largest weight decreases

Reduced and sold-out positions, by percentage points of the portfolio lost

  1. BIOBio-Rad Laboratories, Inc.
    −2.23 pp2.2% → 0.0%History
  2. FDXFedEx Corp
    −1.15 pp4.3% → 3.2%History
  3. SNSharkNinja, Inc.
    −0.80 pp1.3% → 0.5%History
  4. TRIPTripAdvisor, Inc.
    −0.80 pp2.4% → 1.6%History
  5. ACMRACM Research, Inc.
    −0.59 pp1.5% → 0.9%History

Metrics

13F metrics for Q2 2026, computed only from the numbers in the filings. Definitions below.

Portfolio value
$1.92B
−$115.6M (−5.7%) vs. prior quarter
Positions
47
−2 vs. prior quarter
Top 10 concentration
62.7%
Top 10 as share of value
Turnover
9.6%
Q2 2026, one quarter
Average holding period
12.4 quarters
Weighted by value

How these are calculated

  • Portfolio value: the market value of all long positions in the 13F, as reported at quarter end, excluding options.
  • Top 10 concentration: the combined value of the 10 largest positions as a share of portfolio value.
  • Turnover: the smaller of this quarter's estimated purchases and estimated sales, divided by the average of this and last quarter's portfolio value. Estimates multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares); new positions use this quarter's value and sold-out positions last quarter's. Only positions reported in shares count, and it is not calculated when the previous quarter was not filed.
  • Average holding period: how many consecutive quarters each current position has been held (including this one; a quarter without the position or without a filing starts the count over), weighted by this quarter's value. Counting starts with the first 13F in Livermore (Q1 2021), so positions held before then are understated.

13F filings by quarter

22 quarters, going back to Q1 2021. Bars show each quarter's 13F portfolio value; quarters without a filing are left blank.

Peak $5.96B (Q4 2021)

Q1 2021: $4.68BQ2 2021: $4.97BQ3 2021: $5.27BQ4 2021: $5.96BQ1 2022: $5.66BQ2 2022: $4.74BQ3 2022: $3.97BQ4 2022: $2.85BQ1 2023: $2.96BQ2 2023: $2.83BQ3 2023: $2.70BQ4 2023: $2.60BQ1 2024: $2.60BQ2 2024: $2.30BQ3 2024: $2.12BQ4 2024: $2.12BQ1 2025: $1.88BQ2 2025: $1.98BQ3 2025: $1.96BQ4 2025: $2.25BQ1 2026: $2.03BQ2 2026: $1.92B
Q1 2021Q2 2026
13F filings of Southeastern Asset Management (Longleaf) by quarter
QuarterFiledPositionsValueTop 3 holdingsChangesFiling
Q2 2026Aug 14, 202647$1.92BRYNMATCNXvs. Q1 2026SEC
Q1 2026May 15, 202649$2.03BRYNMATPPLIvs. Q4 2025SEC
Q4 2025Feb 13, 202653$2.25BCNXMATPPLIvs. Q3 2025SEC
Q3 2025Nov 14, 202549$1.96BCNXMATRYNvs. Q2 2025SEC
Q2 2025Aug 14, 202549$1.98BCNXMATPPLIvs. Q1 2025SEC
Q1 2025May 15, 202543$1.88BCNXMATPPLIvs. Q4 2024SEC
Q4 2024Feb 14, 202544$2.12BCNXMATAMGvs. Q3 2024SEC
Q3 2024Nov 14, 202445$2.12BCNXMATAMGvs. Q2 2024SEC
Q2 2024Aug 14, 202446$2.30BCNXFDXMATvs. Q1 2024SEC
Q1 2024May 15, 202443$2.60BCNXMATFDXvs. Q4 2023SEC
Q4 2023Feb 14, 202445$2.60BMATCNXAMGvs. Q3 2023SEC
Q3 2023Nov 14, 202344$2.70BCNXMATFDXvs. Q2 2023SEC
Q2 2023Aug 14, 202343$2.83BCNXMATFDXvs. Q1 2023SEC
Q1 2023May 15, 202343$2.96BCNXMATHvs. Q4 2022SEC
Q4 2022Feb 14, 202340$2.85BMATLUMNCNXvs. Q3 2022SEC
Q3 2022Nov 14, 202239$3.97BLUMNMATCNXvs. Q2 2022SEC
Q2 2022Aug 12, 202237$4.74BLUMNMATFDXvs. Q1 2022SEC
Q1 2022May 16, 202237$5.66BLUMNCNXMATvs. Q4 2021SEC
Q4 2021Feb 15, 202235$5.96BLUMNMATCNXvs. Q3 2021SEC
Q3 2021Nov 15, 202129$5.27BLUMNCNXMATvs. Q2 2021SEC
Q2 2021Aug 13, 202124$4.97BLUMNCNXMATvs. Q1 2021SEC
Q1 2021May 17, 202124$4.68BLUMNCNXMAT–SEC

13D and 13G filings

Companies where Southeastern Asset Management (Longleaf) reports owning 5% or more on Schedule 13D or 13G, and its latest filings.

Current stakes of 5% or more

3 companies, largest stake first.

Companies where Southeastern Asset Management (Longleaf) owns 5% or more
CompanyLatest formStakeChangeFirst filedLatest filingFiling
CLWClearwater Paper Corp13G/A8.60%1.38M shares+2.80 ppfrom 5.80%Aug 14, 20252 filingsFeb 13, 2026SEC
GLIBKLiberty Capital Corp13G5.40%1.94M shares+1.72 ppfrom 3.68%Feb 13, 20263 filingsAug 14, 2026SEC
ESRTEmpire State Realty Trust, Inc.13G5.10%8.70M shares–Feb 16, 20215 filingsAug 14, 2026SEC

Latest filings

64 filings on file made by Southeastern Asset Management (Longleaf) or listing it as a reporting person; the latest 20 are shown.

Schedule 13D and 13G filings by Southeastern Asset Management (Longleaf)
CompanyFiled (ET)FormStakeChangeEvent dateFiling
GLIBKLiberty Capital CorpAug 14, 20264:10 PM ET13G5.40%1.94M shares+1.72 ppfrom 3.68%Jun 30, 2026SEC
ESRTEmpire State Realty Trust, Inc.Aug 14, 20264:10 PM ET13G5.10%8.70M shares–Jun 30, 2026SEC
SHENShenandoah Telecommunications CoAug 14, 20264:10 PM ET13G/A4.70%2.62M shares−0.70 ppfrom 5.40%Below 5%Jun 30, 2026SEC
PPLIPeople IncAug 14, 20264:10 PM ET13G/A4.60%3.13M shares−1.00 ppfrom 5.60%Below 5%Jun 30, 2026SEC
GLIBKLiberty Capital CorpMay 15, 20264:15 PM ET13G/A3.68%1.32M shares−1.72 ppfrom 5.40%Below 5%Mar 31, 2026SEC
SHENShenandoah Telecommunications CoFeb 13, 20265:04 PM ET13G5.40%2.94M sharesNewDec 31, 2025SEC
CLWClearwater Paper CorpFeb 13, 20264:53 PM ET13G/A8.60%1.38M shares+2.80 ppfrom 5.80%Dec 31, 2025SEC
PPLIPeople IncFeb 13, 20264:44 PM ET13G5.60%3.99M sharesNewDec 31, 2025SEC
GLIBKLiberty Capital CorpFeb 13, 20264:44 PM ET13G5.40%1.32M sharesNewDec 31, 2025SEC
KODKEastman Kodak CoDec 5, 20254:05 PM ET13G/A0.00%0 shares–Below 5%Nov 28, 2025SEC
WESTWestrock Coffee CoAug 14, 20254:05 PM ET13G/A2.80%2.67M shares−2.40 ppfrom 5.20%Below 5%Jun 30, 2025SEC
CLWClearwater Paper CorpAug 14, 20254:05 PM ET13G5.80%937.9K sharesNewJun 30, 2025SEC
WESTWestrock Coffee CoFeb 14, 20254:05 PM ET13G/A5.20%4.88M shares–Dec 31, 2024SEC
HOUSAnywhere Real Estate Inc.Nov 14, 202413G/AOld format–––SEC
CNXCNX Resources CorpNov 14, 202413G/AOld format–––SEC
WESTWestrock Coffee CoFeb 14, 202413G/AOld format–––SEC
BATRAAtlanta Braves Holdings, Inc.Feb 14, 202413GOld format–New–SEC
HOUSAnywhere Real Estate Inc.Feb 14, 202413G/AOld format–––SEC
HOUSAnywhere Real Estate Inc.Feb 14, 202413G/AOld format–––SEC
KODKEastman Kodak CoFeb 14, 202413G/AOld format–––SEC