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Security record · archived quarter

MLM

Martin Marietta Materials, Inc. · Basic Materials · Construction Materials

531.74 -0.3% mkt cap $31.94B quote delayed (FMP) · as of Aug 25 22:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
15Tracked holders
+4Δ holders
6.81MShares held
$3.25BReported value
+4New positions
−0Exits
Strongly Rising Conviction score 49/100 How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth +30.0% · share flow -13.9% · net new positions +20.0%formula
Ownership fragmentation — more holders, smaller aggregate stake

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 161 +6 43.53M $25.10B +10 −3
Q1 2026 157 -3 42.60M $25.03B +4 −8
Q4 2025 159 -2 46.56M $28.99B +1 −2
Q3 2025 20 +2 28.47M $17.94B +3 −2
Q2 2025 16 -2 21.07M $11.56B −2
Q1 2025 15 +4 6.81M $3.25B +4
Q4 2024 11 -4 7.91M $4.08B −4
Q3 2024 14 +1 5.54M $2.98B +1
Q2 2024 13 6.07M $3.29B
Holder count
Who holds it · Q1 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 State Street Global Advisors (passive) 2.77M +2.8% $1.32B 0.1% ▲ Add 2 SEC ↗
2 Geode Capital Management (passive) 1.52M +3.0% $722.64M 0.1% ▲ Add 4 SEC ↗
3 Geode Capital Management (passive) 1.52M +3.0% $722.64M 0.1% ▲ Add 4 SEC ↗
4 Baillie Gifford 1.26M -34.3% $600.11M 0.5% ▼ Trim 4 SEC ↗
5 Baillie Gifford 1.26M -34.3% $600.11M 0.5% ▼ Trim 4 SEC ↗
6 Baillie Gifford 1.26M -34.3% $600.11M 0.5% ▼ Trim 4 SEC ↗
7 Baillie Gifford 1.26M -34.3% $600.11M 0.5% ▼ Trim 4 SEC ↗
8 Norges Bank (passive) 580.57K -2.3% $277.59M 0.0% ▼ Trim 4 SEC ↗
9 Two Sigma Investments 315.55K +33.0% $150.87M 0.3% ▲ Add 4 SEC ↗
10 T. Rowe Price 208.28K -72.9% $99.58M 0.0% ▼ Trim 4 SEC ↗
11 T. Rowe Price 208.28K -72.9% $99.58M 0.0% ▼ Trim 4 SEC ↗
12 AQR Capital Management 46.82K +47.9% $22.16M 0.0% ▲ Add 4 SEC ↗
13 AQR Capital Management 46.82K +47.9% $22.16M 0.0% ▲ Add 4 SEC ↗
14 AQR Capital Management 46.82K +47.9% $22.16M 0.0% ▲ Add 4 SEC ↗
15 AQR Capital Management 46.82K +47.9% $22.16M 0.0% ▲ Add 4 SEC ↗
16 AQR Capital Management 46.82K +47.9% $22.16M 0.0% ▲ Add 4 SEC ↗
17 AQR Capital Management 46.82K +47.9% $22.16M 0.0% ▲ Add 4 SEC ↗
18 Arrowstreet Capital 44.76K New $21.40M 0.0% New 1 SEC ↗
19 Marshall Wace 25.52K -27.3% $12.20M 0.0% ▼ Trim 4 SEC ↗
20 Adage Capital Partners 21.74K New $10.39M 0.0% New 1 SEC ↗
21 Citadel Advisors 10.55K -88.7% $5.04M 0.0% ▼ Trim 4 SEC ↗
22 Millennium Management 9.51K -86.2% $4.55M 0.0% ▼ Trim 4 SEC ↗
23 D. E. Shaw & Co. 3.50K New $1.67M 0.0% New 1 SEC ↗
24 Gotham Asset Management 805 New $384,895 0.0% New 1 SEC ↗
25 Wellington Management 462 +3.1% $220,896 0.0% ▲ Add 4 SEC ↗
26 Wellington Management 462 +3.1% $220,896 0.0% ▲ Add 4 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.

New buyers

Arrowstreet Capital $21.40M 0.0%
Adage Capital Partners $10.39M 0.0%
D. E. Shaw & Co. $1.67M 0.0%
Gotham Asset Management $384,895 0.0%

Exited

No tracked exits this quarter.

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,064 holders, 56.49M shares, $31.19B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.

Beneficial ownership
Aug 24 SC 13D — LNA Holding SRL

15.4% of class · View original SEC filing ↗

Aug 07 SC 13G — STATE STREET CORP

View original SEC filing ↗

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q1 2025 · Methodology · Get this via the API