Southeastern Asset Management avatar

Shareholder letter / fund letter · 2026-03-31

Longleaf Partners Quarterly Commentaries

Southeastern Asset Management · Mason Hawkins

Quarterly Letter Margin of safety appraisal value Longleaf

AI summary and analysis

The official Longleaf Partners commentary page provides Southeastern/Longleaf's quarterly letters and portfolio views and is the primary public source of Mason Hawkins' value investing framework.

Key points

  • Longleaf's comments typically emphasize appraisal value, management cooperation, and margin of safety.
  • The information helps explain the presence of cyclical, energy, media, and discount holding companies in Southeastern's portfolio.
  • The official comment page has a stable source and is more reliable than third-party reprints.
  • It should be noted that Hawkins is a representative of the long-term value framework, and a single quarter of 13F is not enough to illustrate a complete investment case.
  • This information can transform the Mason Hawkins page from a blank position list into a sourced investment framework page.

Other viewpoints from the same firm

Southeastern Asset Management Investment Approach

Southeastern's official investment methodology page describes its long-term, focused, valuation-driven, and active owner approach and is a classic source of framework for understanding Mason Hawkins.

Investment presentation