Position in MLM
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$2,758,411,422
-$34,982,049 QoQ
Shares Held
4,685,757
+4.4% QoQ
Ownership
7.80%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2024
7 quarters on record
Voting authority
Sole 91.77411462011368.ToString("F0")%
Shared 0.ToString("F0")%
None 8.225885379886323.ToString("F0")%
Common Shares in MLM Over Time
Shares Held
Position Value (USD)
Position in Building Materials
Basic Materials · as of Mar 31, 2026BlackRock, Inc. holds $13,310,355,561 across 13 Building Materials names. MLM ranks #2 (20.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | CRH |
Crh Public Ltd Co
|
52,230,347 | $5,490,454,067 | |
| 2 | MLM |
Martin Marietta Materials Inc
This page
|
4,685,757 | $2,758,411,422 | |
| 3 | VMC |
Vulcan Materials CO
|
9,962,802 | $2,712,870,974 | |
| 4 | AMRZ |
Amrize Ltd
|
15,432,336 | $864,519,453 | |
| 5 | KNF |
Knife River Corp
|
6,971,833 | $569,250,154 | |
| 6 | EXP |
Eagle Materials Inc
|
3,000,139 | $568,376,325 | |
| 7 | USLM |
United States Lime & Minerals Inc
|
863,200 | $112,742,544 | |
| 8 | JHX |
James Hardie Industries plc
|
5,615,163 | $106,351,180 |
All Filings in MLM
Export CSV
7 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,758,411,422 | 4,685,757 | Shares | Sole | 2026-05-13 | |
| 2025-12-31 | $2,793,393,471 | 4,486,226 | Shares | Other | 2026-02-12 | |
| 2025-09-30 | $2,616,927,593 | 4,152,008 | Shares | Sole | 2025-11-12 | |
| 2025-06-30 | $2,320,897,470 | 4,227,808 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $2,061,741,014 | 4,312,093 | Shares | Sole | 2025-05-02 | |
| 2024-12-31 | $2,200,168,618 | 4,259,765 | Shares | Sole | 2025-02-07 | |
| 2024-09-30 | $2,183,212,503 | 4,056,131 | Shares | Sole | 2024-11-13 | |
| No filing history on record for this holder in this stock. | ||||||