Martin Marietta Materials Inc
MLM- Exchange
- NYSE
- Industry
- Mining & Quarrying of Nonmetallic Minerals (No Fuels)
- SEC CIK
- 0000916076
No open-market purchases or sales by Martin Marietta Materials Inc insiders were filed in the last 90 days; 1,079 institutions reported holding it in 13F filings for Q2 2026, worth $34.2B in total; 4 superinvestors hold it, including TCI Fund Management and Gardner Russo & Quinn.
Members of Congress who traded MLM
Since 2020, newest trade first. Options and trades reported under an earlier ticker are included.
- Trades
- 19
- Filings
- 13
- Members
- 6
- Buys / sells
- 12 / 7
- Estimated volume
- $751.0K
- Sum of range midpoints
| Member | Trades | Buys / sells | Est. volume | Last traded | Last filed |
|---|---|---|---|---|---|
| April McClain DelaneyDemocrat · House · MD | 9 | 7 / 2 | $463.5K | Aug 25, 2026 | Sep 9, 2026 |
| Josh GottheimerDemocrat · House · NJ | 1 | 0 / 1 | $32.5K | Apr 9, 2026 | May 19, 2026 |
| Val T. HoyleDemocrat · House · OR | 2 | 1 / 1 | $16.0K | Sep 23, 2025 | Oct 10, 2025 |
| Lisa C. McClainRepublican · House · MI | 2 | 1 / 1 | $16.0K | Jun 10, 2025 | Aug 13, 2025 |
| Dan SullivanRepublican · Senate · AK | 1 | 0 / 1 | $8.00K | Nov 30, 2022 | Jul 26, 2023 |
| Thomas R. SuozziDemocrat · House · NY | 4 | 3 / 1 | $215.0K | Nov 7, 2018 | Dec 19, 2022 |
Trades
Every reported trade in Martin Marietta Materials Inc, newest filings first.
| Member | Asset | Type | Owner | Traded | Filed | Delay | Amount | Source |
|---|---|---|---|---|---|---|---|---|
| April McClain DelaneyDemocrat · House · MD | MLMMartin Marietta Materials, Inc. Common Stock | Sell | Child | Aug 25, 2026 | Sep 9, 2026 | 15 days | $250K-$500K | Filing |
| April McClain DelaneyDemocrat · House · MD | MLMMartin Marietta Materials, Inc. Common Stock | Buy | Child | Aug 19, 2026 | Sep 9, 2026 | 21 days | $1K-$15K | Filing |
| April McClain DelaneyDemocrat · House · MD | MLMMartin Marietta Materials, Inc. Common Stock | Buy | Child | Jul 24, 2026 | Aug 3, 2026 | 10 days | $15K-$50K | Filing |
| April McClain DelaneyDemocrat · House · MD | MLMMartin Marietta Materials, Inc. Common Stock | Buy | Child | Jul 20, 2026 | Aug 3, 2026 | 14 days | $1K-$15K | Filing |
| April McClain DelaneyDemocrat · House · MD | MLMMartin Marietta Materials, Inc. Common Stock | Buy | Child | Jul 17, 2026 | Aug 3, 2026 | 17 days | $1K-$15K | Filing |
| April McClain DelaneyDemocrat · House · MD | MLMMartin Marietta Materials, Inc. Common Stock | Buy | Child | May 28, 2026 | Jun 5, 2026 | 8 days | $1K-$15K | Filing |
| Josh GottheimerDemocrat · House · NJ | MLMMartin Marietta Materials, Inc. Common Stock | Sell | Joint | Apr 9, 2026 | May 19, 2026 | 40 days | $15K-$50K | Filing |
| April McClain DelaneyDemocrat · House · MD | MLMMartin Marietta Materials, Inc. Common Stock | Buy | Child | Mar 9, 2026 | Apr 6, 2026 | 28 days | $1K-$15K | Filing |
| April McClain DelaneyDemocrat · House · MD | MLMMartin Marietta Materials, Inc. Common Stock | Buy | Child | Dec 2, 2025 | Jan 5, 2026 | 34 days | $1K-$15K | Filing |
| Val T. HoyleDemocrat · House · OR | MLMMartin Marietta Materials, Inc. Common Stock | Sell | Spouse | Sep 23, 2025 | Oct 10, 2025 | 17 days | $1K-$15K | Filing |
| Val T. HoyleDemocrat · House · OR | MLMMartin Marietta Materials, Inc. Common Stock | Buy | Spouse | Oct 29, 2024 | Sep 12, 2025 | 318 daysLate | $1K-$15K | Filing |
| April McClain DelaneyDemocrat · House · MD | MLMMartin Marietta Materials, Inc. Common Stock | Sell (partial) | Child | Aug 1, 2025 | Sep 2, 2025 | 32 days | $1K-$15K | Filing |
| Lisa C. McClainRepublican · House · MI | MLMMartin Marietta Materials, Inc. Common Stock | Sell | Spouse | Jun 10, 2025 | Aug 13, 2025 | 64 daysLate | $1K-$15K | Filing |
| Lisa C. McClainRepublican · House · MI | MLMMartin Marietta Materials, Inc. Common Stock | Buy | Spouse | Dec 11, 2024 | Aug 13, 2025 | 245 daysLate | $1K-$15K | Filing |
| Dan SullivanRepublican · Senate · AK | MLMMartin Marietta Materials, Inc. Common Stock | Sell (full) | Joint | Nov 30, 2022 | Jul 26, 2023Amended | 21 days | $1K-$15K | Filing |
| Thomas R. SuozziDemocrat · House · NY | MLMMartin Marietta Materials, Inc. | Buy | Self | Oct 2, 2018 | Dec 19, 2022 | 1,539 daysLate | $15K-$50K | Filing |
| Thomas R. SuozziDemocrat · House · NY | MLMMartin Marietta Materials, Inc. | Buy | Self | Oct 1, 2018 | Dec 19, 2022 | 1,540 daysLate | $15K-$50K | Filing |
| Thomas R. SuozziDemocrat · House · NY | MLMMartin Marietta Materials, Inc. | Buy | Self | Oct 15, 2018 | Sep 23, 2021 | 1,074 daysLate | $50K-$100K | Filing |
| Thomas R. SuozziDemocrat · House · NY | MLMMartin Marietta Materials, Inc. | Sell | Self | Nov 7, 2018 | Sep 23, 2021 | 1,051 daysLate | $50K-$100K | Filing |
Source: U.S. House Clerk and Senate Office of Public Records (eFD). Amounts are the ranges filers report.