Mason Hawkins — Southeastern Asset ManagementSuperinvestor
About Mason Hawkins — Southeastern Asset Management’s 13F portfolio
Mason Hawkins — Southeastern Asset Management is an institutional investment manager that discloses its US-listed holdings each quarter through an SEC Form 13F filing. As of , Mason Hawkins — Southeastern Asset Management reported $2.0B across 49 US-listed positions (). Its largest position is RAYONIER INC (RYN) at 11% of the reported book, and its ten biggest holdings make up 63% of the portfolio. Browse every manager in the fund managers directory, or see the legendary investors we track on the superinvestors page.
| # | Stock | Price | % of portfolio | Shares | Value |
|---|---|---|---|---|---|
| 1 |  RYN RAYONIER INC | $21.68 +0.46% | 11% | 10.8M | $221.9M |
| 2 |  MAT MATTEL INC | $14.80 +3.21% | 9.2% | 12.8M | $186.2M |
| 3 |  IAC IAC INC | $44.54 −4.21% | 7.9% | 4.0M | $161.0M |
| 4 |  CNX CNX RES CORP | $33.75 −1.57% | 7.6% | 4.0M | $154.7M |
| 5 |  ACI ALBERTSONS COS INC | $11.37 +3.08% | 6.2% | 7.4M | $126.4M |
| 6 |  REGN REGENERON PHARMACEUTICALS | $667.17 +1.70% | 5.0% | 131K | $101.0M |
| 7 |  KHC KRAFT HEINZ CO | $26.22 +2.14% | 4.4% | 3.9M | $88.8M |
| 8 |  FDX FEDEX CORP | $310.79 −1.32% | 4.3% | 247K | $88.2M |
| 9 |  FBIN FORTUNE BRANDS INNOVATIONS I | $51.48 +0.41% | 4.1% | 2.2M | $83.9M |
| 10 |  MGM MGM RESORTS INTERNATIONAL | $46.30 +1.67% | 3.0% | 1.7M | $61.5M |
| 11 |  PVH PVH CORPORATION | $83.93 +4.38% | 2.5% | 737K | $51.4M |
| 12 |  GLIBK GCI LIBERTY INC | $22.55 +2.73% | 2.4% | 1.3M | $49.2M |
| 13 |  TRIP TRIPADVISOR INC | $14.28 +4.23% | 2.4% | 4.6M | $49.0M |
| 14 |  BIO BIO RAD LABS INC | $316.41 +0.62% | 2.2% | 163K | $45.4M |
| 15 |  SHEN SHENANDOAH TELECOMMUNICATION | $11.52 +0.88% | 2.2% | 2.9M | $45.3M |
| 16 |  WTM WHITE MTNS INS GROUP LTD | $2,193.94 −0.64% | 2.0% | 19K | $41.4M |
| 17 |  CNH CNH INDL N V | $11.08 −0.63% | 2.0% | 3.7M | $40.9M |
| 18 |  GHC GRAHAM HLDGS CO | $1,178.79 +2.07% | 2.0% | 38K | $39.9M |
| 19 |  FIS FIDELITY NATL INFORMATION SV | $43.16 +3.97% | 1.9% | 828K | $38.8M |
| 20 |  ESRT EMPIRE ST RLTY TR INC | $5.62 −0.71% | 1.7% | 6.5M | $33.7M |
| 21 |  ACMR ACM RESH INC | $79.97 −5.16% | 1.5% | 783K | $30.8M |
| 22 |  EDU NEW ORIENTAL ED & TECHNOLOGY | $49.91 +1.36% | 1.5% | 522K | $29.6M |
| 23 |  BATRK ATLANTA BRAVES HLDGS INC | $50.74 +1.48% | 1.4% | 671K | $28.7M |
| 24 |  DOLE DOLE PLC | $14.05 −0.64% | 1.4% | 1.9M | $27.6M |
| 25 |  AVTR AVANTOR INC | $11.76 +2.80% | 1.4% | 3.5M | $27.6M |
Showing 1–25 of 49 positions on this page reported in this 13F.
Tiles are sized by portfolio weight and coloured by sector; the “est.” figure on each tile is the estimated dividend- and split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
“Est. return” = estimated dividend/split-adjusted return since the first reported quarter — not the manager’s profit or cost basis.
- Consumer Cyclical20%
- Consumer Defensive16%
- Communication Services14%
- Real Estate14%
- Industrials13%
- Healthcare8.7%
- Energy7.6%
- Technology4.3%
- Financial Services2.2%
- Basic Materials1.1%
How this return is calculated
Estimated dividend- and split-adjusted return from the end of the first consecutive reported quarter in which the current holding appears in Bullish Whales’ 13F history, through the manager’s latest reported quarter. Current disclosed holdings only. Start dates differ by holding, changes in position size are not modeled, and positions no longer reported are excluded. Not the manager’s cost basis, purchase date, realized profit or loss, live performance, or portfolio performance.
- AddedRYNRAYONIER INC+89.5%$221.9M
- AddedMATMATTEL INC+49.5%$186.2M
- AddedIACIAC INC+0.8%$161.0M
- AddedACIALBERTSONS COS INC+20.3%$126.4M
- AddedFBINFORTUNE BRANDS INNOVATIONS I+82.8%$83.9M
- AddedTRIPTRIPADVISOR INC+62.0%$49.0M
- AddedGHCGRAHAM HLDGS CO+5.7%$39.9M
- AddedFISFIDELITY NATL INFORMATION SV+33.0%$38.8M
- AddedESRTEMPIRE ST RLTY TR INC+74.8%$33.7M
- AddedEDUNEW ORIENTAL ED & TECHNOLOGY+37.6%$29.6M
- ReducedCNXCNX RES CORP−15.2%$154.7M
- ReducedREGNREGENERON PHARMACEUTICALS−21.2%$101.0M
- ReducedKHCKRAFT HEINZ CO−12.0%$88.8M
- ReducedFDXFEDEX CORP−31.1%$88.2M
- ReducedMGMMGM RESORTS INTERNATIONAL−18.2%$61.5M
- ReducedBIOBIO RAD LABS INC−28.5%$45.4M
- ReducedWTMWHITE MTNS INS GROUP LTD−40.4%$41.4M
- ReducedACMRACM RESH INC−53.4%$30.8M
- ReducedAVTRAVANTOR INC−0.8%$27.6M
- ReducedSAMBOSTON BEER INC−20.0%$27.3M
Reading Mason Hawkins — Southeastern Asset Management’s 13F portfolio
Mason Hawkins — Southeastern Asset Management’s $2.0B 13F book is spread across 49 reported positions and is highly concentrated — its ten largest positions alone are 63% of the portfolio. A book this concentrated means a small group of names drives most of its performance. Its five largest positions are RYN, MAT, IAC, CNX and ACI, led by RAYONIER INC (RYN) at 11% of the portfolio. The heaviest sector exposure is Consumer Cyclical (20%), then Consumer Defensive (16%).
What Mason Hawkins — Southeastern Asset Management changed last quarter
Between 2025-12-31 and Q1 2026, Mason Hawkins — Southeastern Asset Management was a net seller: it opened 0 new positions and added to 12 more, while trimming 15 and closing 4 outright. Against a 49-name book, that is moderate turnover, pointing to steady rotation within the portfolio. Its largest new or increased position was RAYONIER INC (RYN), and its biggest reduction was CNX RES CORP (CNX).
What a 13F does and doesn’t reveal
A 13F captures only Mason Hawkins — Southeastern Asset Management’s long positions in US-listed stocks at a single quarter-end, so it is best read as a lagged snapshot rather than a live portfolio. It won’t show shorts, cash, bonds, or holdings listed outside the US, and it never reveals the price paid or the reasoning behind a trade. The signal is in the pattern over time: which names Mason Hawkins — Southeastern Asset Management is building up, trimming, or exiting, and how concentrated the book stays from quarter to quarter.
Frequently asked questions
What is an SEC 13F filing?
A Form 13F is a report that every institutional investment manager with at least $100 million in US-listed securities must file with the SEC within 45 days of each quarter's end. It lists the manager's long positions in US-listed stocks and certain options, with the share count and market value of each. Mason Hawkins — Southeastern Asset Management's profile on this page is built directly from those filings.
How current is the 13F data on Mason Hawkins — Southeastern Asset Management's page?
It reflects Mason Hawkins — Southeastern Asset Management's most recently filed 13F, currently the quarter ending Q1 2026. Because managers have up to 45 days after a quarter closes to file, a 13F is always a slightly lagged view rather than a live portfolio. When Mason Hawkins — Southeastern Asset Management files its next quarterly report, this page refreshes automatically.
Can I see Mason Hawkins — Southeastern Asset Management's complete list of holdings?
This page highlights Mason Hawkins — Southeastern Asset Management's largest positions rather than all 49 names in the filing. The complete, position-by-position 13F is public and available from the SEC's EDGAR database under Mason Hawkins — Southeastern Asset Management's filings.
Does a 13F show everything Mason Hawkins — Southeastern Asset Management owns?
No. A 13F only covers long positions in US-listed stocks and certain options. It leaves out short positions, cash, bonds, commodities, foreign-listed stocks, and private holdings, so it is a partial view of Mason Hawkins — Southeastern Asset Management's book rather than its full strategy or total assets.
Is 13F data investment advice?
No. Everything here is educational. 13F positions are disclosed with a delay, cover only long US-listed holdings, and never explain why Mason Hawkins — Southeastern Asset Management made a trade or at what price. Treat it as a research lens, not a recommendation, and speak with a licensed financial advisor before making investment decisions.
Not investment advice. Holdings data comes from public SEC Form 13F filings, which are filed with a delay of up to 45 days and may be amended later. It describes historical, disclosed positions in US-listed securities only, meaning no shorts, cash, or foreign holdings, and it is not a recommendation. Always do your own research and speak with a licensed financial advisor before making investment decisions.