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Livermore
Livermore
ZHEN

Weitz Investment Management

Superinvestor

Weitz Investment Management, Inc.

SEC CIK
0000883965
Manager
Wally Weitz
Style
Value
Latest filing
Aug 12, 2026

MLM holding history

Martin Marietta Materials Inc in every 13F filed by Weitz Investment Management, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MLM overviewAll 13F holders of MLMFull Q2 2026 holdings

Shares (Q2 2026)
47,370
Value
$27.3M
% of portfolio
1.9%
Quarters held
22
Since Q1 2021
Holdings of MLM by Weitz Investment Management, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202647,370$27.3M1.9%+7,595+19.1%AddedHolders
Q1 202639,775$23.4M1.6%−1,500−3.6%ReducedHolders
Q4 202541,275$25.7M1.5%00.0%UnchangedHolders
Q3 202541,275$26.0M1.4%00.0%UnchangedHolders
Q2 202541,275$22.7M1.2%00.0%UnchangedHolders
Q1 202541,275$19.7M1.0%+600+1.5%AddedHolders
Q4 202440,675$21.0M1.1%00.0%UnchangedHolders
Q3 202440,675$21.9M1.1%00.0%UnchangedHolders
Q2 202440,675$22.0M1.2%00.0%UnchangedHolders
Q1 202440,675$25.0M1.3%−8,625−17.5%ReducedHolders
Q4 202349,300$24.6M1.3%−12,700−20.5%ReducedHolders
Q3 202362,000$25.4M1.4%−4,100−6.2%ReducedHolders
Q2 202366,100$30.5M1.6%−450−0.7%ReducedHolders
Q1 202366,550$23.6M1.4%+500+0.8%AddedHolders
Q4 202266,050$22.3M1.3%−3,000−4.3%ReducedHolders
Q3 202269,050$22.2M1.3%00.0%UnchangedHolders
Q2 202269,050$20.7M1.1%+1,800+2.7%AddedHolders
Q1 202267,250$25.9M1.1%+1,068+1.6%AddedHolders
Q4 202166,182$29.2M1.2%−4,268−6.1%ReducedHolders
Q3 202170,450$24.1M1.0%00.0%UnchangedHolders
Q2 202170,450$24.8M1.0%00.0%UnchangedHolders
Q1 202170,450$23.7M1.0%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.