Great investors · Mason Hawkins · Q1 2026
What Mason Hawkins bought and sold in Q1 2026
Southeastern Asset Management 13F portfolio as of Mar 31, 2026: 49 positions worth $2.0 bn. Largest: RYN, MAT, PPLI, CNX. Filed with the SEC on May 15, 2026.
The 13F is filed by Southeastern Asset Management, not by Mason Hawkins personally: these are the whole firm's positions. A “position” is a distinct security in the filing (by CUSIP); share classes of the same company are shown added together.
Buys in Q1 2026
- IncreasedMattelMAT+2.7 pp
- IncreasedRayonierRYN+2.1 pp
- IncreasedFortune Brands InnovationsFBIN+1.7 pp
- IncreasedAlbertsons CompaniesACI+1.0 pp
- IncreasedTripadvisorTRIP+0.8 pp
- IncreasedEmpire State Realty TrustESRT+0.6 pp
Sells in Q1 2026
- ReducedFedExFDX−1.8 pp
- Sold outWalt DisneyDIS−1.6 pp
- ReducedACM ResearchACMR−1.6 pp
- ReducedWhite Mountains Insurance GroupWTM−1.3 pp
- ReducedCNX ResourcesCNX−1.2 pp
- ReducedRegeneron PharmaceuticalsREGN−1.2 pp
- ReducedPayPal HoldingsPYPL−1.1 pp
- Sold outLouisiana-pacificLPX−1.0 pp
- ReducedBIO RAD LabsBIO−0.8 pp
- ReducedMGM Resorts InternationalMGM−0.6 pp
- ReducedKraft HeinzKHC−0.5 pp
17 companies with material moves, out of 28 positions with a change. Only moves of 0.5 points of the portfolio or more are listed, measured as “traded weight” (what was bought or sold, excluding price effects). Smaller changes exist and are not listed: a position may have gone up or down without appearing above.
The full 13F, line by line
Southeastern Asset Management's Q1 2026 13F lists 49 lines of US-listed securities worth $2.0 bn; the largest is RYN at 10.9% of the portfolio. It was accepted by the SEC on May 15, 2026 at 4:05 PM ET.
Against the previous quarter, it opened no new positions, closed 3 (DIS, LPX and ACH), added to 11 (MAT, FBIN, RYN and TRIP and 7 more) and trimmed 14 (FDX, CNX, REGN and WTM and 10 more). 24 lines show the same number of shares.
| # | Company | Shares | Value | Weight | Change in shares |
|---|---|---|---|---|---|
| 1 | Rayonier RYN | 10.8 M | $222M | 10.9% | +26% |
| 2 | Mattel MAT | 12.8 M | $186M | 9.16% | +49% |
| 3 | People PPLI | 4.0 M | $161M | 7.92% | no change |
| 4 | CNX Resources CNX | 4.0 M | $155M | 7.61% | −15% |
| 5 | Albertsons Companies ACI | 7.4 M | $126M | 6.22% | +20% |
| 6 | Regeneron Pharmaceuticals REGN | 130,662 | $101M | 4.97% | −21% |
| 7 | Kraft Heinz KHC | 3.9 M | $88.8M | 4.37% | −12% |
| 8 | FedEx FDX | 247,495 | $88.2M | 4.34% | −31% |
| 9 | Fortune Brands Innovations FBIN | 2.2 M | $83.9M | 4.13% | +83% |
| 10 | MGM Resorts International MGM | 1.7 M | $61.5M | 3.03% | −18% |
| 11 | PVH PVH | 736,935 | $51.4M | 2.53% | no change |
| 12 | Liberty Capital GLIBK | 1.3 M | $49.2M | 2.42% | no change |
| 13 | Tripadvisor TRIP | 4.6 M | $49.0M | 2.41% | +62% |
| 14 | BIO RAD Labs BIO | 162,804 | $45.4M | 2.23% | −28% |
| 15 | Shenandoah Telecommunications SHEN | 2.9 M | $45.3M | 2.23% | no change |
| 16 | White Mountains Insurance Group WTM | 18,864 | $41.4M | 2.04% | −40% |
| 17 | CNH Industrial CNH | 3.7 M | $40.9M | 2.01% | no change |
| 18 | Graham Holdings GHC | 37,760 | $39.9M | 1.96% | +5.7% |
| 19 | Fidelity National Information Services FIS | 827,501 | $38.8M | 1.91% | +33% |
| 20 | Empire State Realty Trust ESRT | 6.5 M | $33.7M | 1.66% | +75% |
| 21 | ACM Research ACMR | 782,900 | $30.8M | 1.52% | −53% |
| 22 | New Oriental Education & Technology Group EDU | 522,280 | $29.6M | 1.46% | +38% |
| 23 | Atlanta Braves Holdings BATRK | 671,014 | $28.7M | 1.41% | no change |
| 24 | Dole DOLE | 1.9 M | $27.6M | 1.36% | no change |
| 25 | Avantor AVTR | 3.5 M | $27.6M | 1.36% | no change |
| 26 | Boston Beer SAM | 118,401 | $27.3M | 1.34% | −20% |
| 27 | Sharkninja SN | 250,666 | $26.5M | 1.31% | −13% |
| 28 | Magnum Ice Cream MICC | 1.6 M | $24.2M | 1.19% | +13% |
| 29 | Alexanders ALX | 99,013 | $23.4M | 1.15% | −19% |
| 30 | Clearwater Paper CLW | 1.5 M | $21.9M | 1.08% | +10% |
| 31 | Joint Stock Company Kaspi.kz KSPI | 240,628 | $17.8M | 0.88% | no change |
| 32 | H World Group HTHT | 231,372 | $11.6M | 0.57% | no change |
| 33 | Melco Resorts & Entertainment MLCO | 1.8 M | $10.2M | 0.50% | no change |
| 34 | Liberty Capital GLIBA | 80,675 | $3.0M | 0.15% | no change |
| 35 | Cardinal Health CAH | 7,337 | $1.6M | 0.08% | −15% |
| 36 | Affiliated Managers Group AMG | 5,562 | $1.5M | 0.08% | no change |
| 37 | Live Nation Entertainment LYV | 8,434 | $1.3M | 0.06% | no change |
| 38 | Henry Schein HSIC | 17,038 | $1.3M | 0.06% | no change |
| 39 | XPO XPO | 6,336 | $1.2M | 0.06% | −51% |
| 40 | Hyatt Hotels H | 7,733 | $1.1M | 0.05% | no change |
| 41 | Madison Square Grdn Sprt COR MSGS | 3,218 | $1.0M | 0.05% | no change |
| 42 | PayPal Holdings PYPL | 22,463 | $1.0M | 0.05% | −96% |
| 43 | Enovis ENOV | 44,258 | $1.0M | 0.05% | no change |
| 44 | Lazard LAZ | 18,608 | $790K | 0.04% | no change |
| 45 | RXO RXO | 43,731 | $639K | 0.03% | no change |
| 46 | Constellation Brands STZ | 3,661 | $549K | 0.03% | no change |
| 47 | Clarivate CLVT | 121,927 | $308K | 0.02% | no change |
| 48 | Hdfc Bank HDB | 10,462 | $260K | 0.01% | no change |
| 49 | Fiserv FISV | 3,990 | $223K | 0.01% | no change |
Positions it closed (3)
- Walt Disney DISwas 1.61% · 317,175 shares
- Louisiana-pacific LPXwas 0.98% · 272,123 shares
- Accendra Health ACHwas 0.02% · 181,735 shares
One row per line of the filing (by CUSIP): share classes of the same company are listed separately here. “Change in shares” compares the count with the previous quarter, split-adjusted; the value is the one reported in the 13F at quarter end, not today's price.
Original documents: Southeastern Asset Management's 13F filings on EDGAR (SEC) ↗
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Source: 13F filings with the SEC. A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions. Not investment advice.