MLM MARTIN MARIETTA MATERIALS INC: institutional ownership and insider trading
1,130 funds reported holding $39.3B of MARTIN MARIETTA MATERIALS INC in their latest 13F filings; in Q2 2026 funds net bought $513M, with 100 new positions and 99 funds selling out; over the last 12 months insiders bought $0 and sold $0 on the open market.
Famous investors holding MLM
- Tom Russo (Gardner Russo & Quinn): $407M, 4.6% of the portfolio
- Chris Hohn (TCI Fund Management): $758M, 1.4% of the portfolio
- Dan Sundheim (D1 Capital Partners): $199M, 0.6% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $18.4M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $29.7M, 0.0% of the portfolio
- Izzy Englander (Millennium Management): $32.6M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $41.6M, 0.0% of the portfolio
- D. E. Shaw (D. E. Shaw & Co.): $825K, 0.0% of the portfolio
Largest institutional holders of MLM
- VANGUARD GROUP INC — $4.59B
- BlackRock, Inc. (BLK) — $2.71B
- VANGUARD CAPITAL MANAGEMENT LLC — $2.27B
- VANGUARD PORTFOLIO MANAGEMENT LLC — $1.84B
- STATE STREET CORP (STT, STT-PG) — $1.82B
- BANK OF AMERICA CORP /DE/ (BAC, BAC-PB, BAC-PE, BAC-PK, BAC-PL, BAC-PM, BAC-PN, BAC-PO, BAC-PP, BML-PG, BML-PH, BML-PJ, BML-PL) — $1.41B
- FMR LLC — $1.26B
- PRINCIPAL FINANCIAL GROUP INC (PFG) — $1.22B
- Aristotle Capital Management, LLC — $1.06B
- VICTORY CAPITAL MANAGEMENT INC — $1.03B
Recent MLM insider trades
- Aug 8, 2025: Perez Laree E sold 1,038 shares ($637K)
- Mar 5, 2025: McCunniff Donald A. sold 1,332 shares ($633K)
- Mar 4, 2025: Petro Michael J bought 550 shares ($250K)
Members of Congress trading MLM
- Aug 25, 2026: April McClain Delaney sold $250K–$500K
- Aug 19, 2026: April McClain Delaney bought $1.00K–$15.0K
- Jul 24, 2026: April McClain Delaney bought $15.0K–$50.0K
- Jul 20, 2026: April McClain Delaney bought $1.00K–$15.0K
- Jul 17, 2026: April McClain Delaney bought $1.00K–$15.0K
- May 28, 2026: April McClain Delaney bought $1.00K–$15.0K
- Apr 9, 2026: Josh Gottheimer sold $15.0K–$50.0K
- Mar 9, 2026: April McClain Delaney bought $1.00K–$15.0K
- Dec 2, 2025: April McClain Delaney bought $1.00K–$15.0K
- Sep 23, 2025: Val T. Hoyle sold $1.00K–$15.0K
5%+ owners
- LNA Holding SRL: 15.4% (Schedule 13D, filed Aug 24, 2026)
- Vanguard Capital Management: 7.5% (Schedule 13G, filed Apr 30, 2026)
- Vanguard Portfolio Management: 5.3% (Schedule 13G, filed Apr 29, 2026)
- STATE STREET CORPORATION: 5.2% (Schedule 13G, filed Aug 7, 2026)