MLM fund manager activity
Martin Marietta Materials, Inc · NYSE. Reported by 13 tracked fund managers in their 13F filings, Q2 2013 to Q2 2026.
Q2 2026
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|
| Dan Sundheim - D1 Capital Partners | Added | 345,060 | $198,996,102 | 0.57% | Aug 14, 2026 |
| Ken Fisher - Fisher Asset Management | Sold out | — | — | 0.00% | Aug 4, 2026 |
| Jeremy Grantham - GMO | Added | 9,516 | $5,487,949 | 0.01% | Aug 13, 2026 |
| Thomas Russo - Gardner Russo & Quinn | Trimmed | 705,367 | $406,784,959 | 4.56% | Aug 13, 2026 |
| Joel Greenblatt - Gotham Asset Management | Added | 36,670 | $21,147,589 | 0.05% | Aug 14, 2026 |
| Chris Hohn - TCI Fund Management | New | 1,315,109 | $758,423,360 | 1.44% | Aug 14, 2026 |
| Wallace Weitz - Weitz Investment Management | Added | 47,370 | $27,318,279 | 1.89% | Aug 12, 2026 |
Q1 2026
| Manager | Activity | Shares | Value | % of portfolio | Filed |
|---|
| Dan Sundheim - D1 Capital Partners | New | 322,857 | $190,059,459 | 1.69% | May 15, 2026 |
| Ken Fisher - Fisher Asset Management | Added | 368 | $216,840 | 0.00% | May 5, 2026 |
| Jeremy Grantham - GMO | Trimmed | 9,284 | $5,465,378 | 0.01% | May 14, 2026 |
| Thomas Russo - Gardner Russo & Quinn | Trimmed | 715,411 | $421,148,042 | 4.96% | May 13, 2026 |
| Joel Greenblatt - Gotham Asset Management | Added | 21,970 | $12,933,300 | 0.04% | May 15, 2026 |
| Wallace Weitz - Weitz Investment Management | Trimmed | 39,775 | $23,414,747 | 1.63% | May 14, 2026 |
Older quarters