Security key
573284106
MARTIN MARIETTA MATERIALS INC - Common Stock (MLM)
CUSIP: 573284106
Q2 2026 13F Holders as of 30 Jun 2026
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 3,148,458
- Total 13F value
- $1,814,331,626
- Share change
- -244,318
- Put/Call ratio
- 288%
- SEC-reported price per share
- $576.70
- Number of holders
- 430
- Value change
- -$141,790,621
- Number of buys
- 184
- Number of sells
- 190
- Shares outstanding
- 60,312,838
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
430
Top holders
10
MLM full security history
Ownership snapshot
Full 13F holder table
MARTIN MARIETTA MATERIALS INC SEC filings
MARTIN MARIETTA MATERIALS INC company facts
Broader feeds
Ownership snapshot
Top reported holders of MLM - MARTIN MARIETTA MATERIALS INC - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
VANGUARD CAPITAL MANAGEME...
Comparable rows
15/15
Latest evidence
14 May 2026
13D/G
13F
3/4/5
Lead comparable stake: 7.5%
13D/G row: VANGUARD CAPITAL MANAGEMENT LLC
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 7.5%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
VANGUARD CAPITAL MANAGEMENT LLC
7.5%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.2%
T. Rowe Price Investment Manageme...
2.6%
C. Howard Nye
0.41%
Roselyn R. Bar
0.1%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7.5%
|
$2,652,220,623
4,505,369 shares
|
$0 | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5.2%
|
$1,864,772,232
3,167,718 shares
|
$0 | 31 Mar 2026 |
| T. Rowe Price Investment Management, Inc. |
13D/G
13F
Company
|
2.6%
|
$811,179,261
1,606,741 shares
|
$0 | 31 Dec 2024 |
| C. Howard Nye |
3/4/5
Chairman, Pres & CEO, Director
|
0.41%
|
$171,454,309
246,438 shares
|
— | 01 Mar 2026 |
| Roselyn R. Bar |
3/4/5
Executive Vice President
|
0.1%
|
$39,402,297
62,594 shares
|
— | 16 Dec 2025 |
| Sue W. Cole |
3/4/5
Director
|
0.04%
|
$13,420,681
24,644 shares
|
— | 15 May 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
430
Shares
3,148,458
Rows available
430
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
1,066
Q2 2026 holders
430
Holder diff
-636
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|