Mason Hawkins

Southeastern Asset Management

Founded Southeastern Asset Management, home of the Longleaf funds, and has since passed on the day-to-day management.

13F portfolio value

Q2 2026

$1.92B

1-year growth

-3.4%

2-year growth

-16.5%

Positions

47

Top 10 share

62.7%

Quarterly turnover

9.9%

Last filed

Aug 14, 2026

Source: SEC EDGAR

Q2 2026: summary

MakklerAI
  • Southeastern’s portfolio was $1.9B across 47 positions; its top 10 holdings made up 62.7%, with 9.9% turnover.
  • CNX rose 16.2% in shares to an 8.3% portfolio weight, up from 7.6% in the prior quarter; ACI increased 16.4% to 6.1%.
  • ABT was a new $76M position at 4.0% of the portfolio; TME was also new at $19M and 1.0%.
  • ACMR was cut 82.2%, while RYN remained the largest holding at 10.5% after an 11.8% share reduction.

PROStill at the same price?

A 13F arrives 45 days late. See the estimated buy price of the other 45 positions, the move since, and where each stands against Makkler Fair Value with MakklerPRO.

Show all 47 positions

Values are US dollar amounts as of the filing. The estimated buy price is the quarter's average close; Fair Value is the same model as on Makkler's stock pages.

MakklerAI

Ask MakklerAI about Mason Hawkins's portfolio

Explore this quarter's moves and where each position stands against its estimated buy price and Makkler Fair Value. Answers are based on the 13F and today's prices.

Other gurus