SC 13G/A ·Filed Oct 30, 2026
Passive stake amendment
Actionable Insight • Neutral
Monitor for any future conversion to a 13D filing, which would signal a shift from passive to active stance. No such signal present here.
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Executive Summary
Vanguard Capital Management LLC filed an amended Schedule 13G disclosing a 6.41% passive stake in Martin Marietta Materials as of September 30, 2026, up from its prior filing. The increase is routine for a large index/asset manager and does not signal activist intent.
Key Financial Metrics
Stake
6.41%
Investor
VANGUARD CAPITAL MANAGEMENT LLC
Investor Type
mutual fund
Key Facts
- Vanguard Capital Management LLC reported beneficial ownership of 4,555,892 shares of Martin Marietta Materials common stock as of September 30, 2026.
- The stake represents 6.41% of shares outstanding.
- The filing is an amendment to a prior Schedule 13G, indicating a passive investment intent.
- Vanguard certified the shares were acquired and are held in the ordinary course of business, not to influence control.
Financial Impact
Stake valued at approximately $2.3B based on market cap of $36.2B and 6.41% ownership.
ownership_percentage
Risk Factors
- No material risks identified; this is a routine passive stake update by a large asset manager.
Market Snapshot
Exchange
NYSE
Sector
Mining & Quarrying of Nonmetallic Minerals (No Fuels)
Analyst Consensus
63% bullish (30 analysts)
Investment Themes
Materials & Mining
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G/A Filing (Primary) | 0002100119-26-001680 |
| Document: 0002100119-26-001680-index.html | 0002100119-26-001680 |
| Document: 0002100119-26-001680.txt | 0002100119-26-001680 |
20 reports for MLM
67% Hit rate @ T+5 Went positive at some point 5 of 6 best @ T+5▲ +4.96%
Filters
Rows
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 30, 2026 2d ago | SC 13G/A | $535.91 | awaiting T+5 | awaiting T+5 | $540.41 (+0.84%) |
Oct 30, 2026 2d ago | SC 13G/A | $537.10 | awaiting T+5 | awaiting T+5 | $540.41 (+0.62%) |
Oct 21, 2026 11d ago | Press Release | $517.67 | awaiting T+5 | awaiting T+5 | $540.41 (+4.39%) |
Oct 21, 2026 11d ago | Institutional Cluster | $517.67 $534.39 | ▼ −3.23% | ▼ −2.52% | $540.41 (−4.39%) |
Aug 24, 2026 9w ago | 8-K | $533.11 $518.70 | ▼ −2.70% | ▼ −3.17% | $540.41 (+1.37%) |
Aug 18, 2026 10w ago | 8-K | $535.53 $532.18 | ▼ −0.63% | ▼ −0.24% | $540.41 (+0.91%) |
Aug 14, 2026 11w ago | 8-K | $538.66 $533.11 | ▼ −1.03% | ▲ +0.16% | $540.41 (+0.32%) |
Aug 12, 2026 11w ago | 8-K | $544.76 $525.27 | ▼ −3.58% | ▼ −1.61% | $540.41 (−0.80%) |
Aug 10, 2026 11w ago | 424B5 | $549.54 $538.66 | ▼ −1.98% | ▼ −1.93% | $540.41 (−1.66%) |
Aug 10, 2026 11w ago | 8-K | $549.54 $538.66 | ▼ −1.98% | ▼ −1.93% | $540.41 (−1.66%) |
Showing 10 of 20
US Market Status
Market Closed · Opens Mon (< 1m)
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