Vanguard's crossing of the 5% threshold is a routine passive disclosure. The prior 13G/A from July 2026 showed Vanguard already held a stake, so this filing confirms a slight increase or reclassification. Monitor for any subsequent 13D filing, though none is expected given the passive certification.
Price Chart
Executive Summary
Vanguard Capital Management LLC filed a new Schedule 13G disclosing a 5.04% passive stake in Koppers Holdings Inc. as of September 30, 2026. This is a new filing (not an amendment) from Vanguard, which previously filed an amended 13G in July 2026. The stake is slightly above the 5% threshold and represents a passive position with no activist intent.
Key Financial Metrics
Key Facts
- Vanguard Capital Management LLC disclosed a 5.04% passive stake in Koppers Holdings Inc.
- The stake consists of 954,282 shares of common stock.
- The filing is a new Schedule 13G, not an amendment, indicating Vanguard crossed the 5% threshold.
- Vanguard certifies the shares were acquired in the ordinary course of business with no intent to influence control.
- The filing date is October 30, 2026, with the ownership date as of September 30, 2026.
Financial Impact
Stake valued at approximately $40M based on market cap of $796M and 5.04% ownership.
Risk Factors
- No material risks identified from this passive filing.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G Filing (Primary) | 0002100119-26-001629 |
| Document: 0002100119-26-001629-index.html | 0002100119-26-001629 |
| Document: 0002100119-26-001629.txt | 0002100119-26-001629 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 30, 2026 2d ago | SC 13G | $41.61 | awaiting T+5 | awaiting T+5 | $41.50 (−0.25%) |
Oct 23, 2026 9d ago | Press Release | $40.18 $41.50 | ▲ +3.29% | ▲ +3.84% | $41.50 (+3.29%) |
Oct 22, 2026 10d ago | SC 13D/A | $40.18 $41.50 | ▼ −3.29% | ▼ −3.84% | $41.50 (−3.29%) |
Oct 19, 2026 13d ago | SC 13G/A | $42.91 $39.83 | ▲ +7.18% | ▲ +7.03% | $41.50 (+3.29%) |
Oct 8, 2026 24d ago | SC 13G/A | $44.24 $43.44 | ▼ −1.81% | ▼ −1.53% | $41.50 (−6.19%) |
Aug 20, 2026 10w ago | Insider Cluster | $45.19 $46.56 | ▲ +3.03% | ▲ +2.56% | $41.50 (−8.17%) |
Aug 13, 2026 11w ago | Insider Cluster | $47.14 $45.19 | ▼ −4.14% | ▼ −2.77% | $41.50 (−11.96%) |
Aug 12, 2026 11w ago | Insider Cluster | $46.22 $45.88 | ▼ −0.74% | ▲ +1.23% | $41.50 (−10.21%) |
Aug 11, 2026 11w ago | Insider Cluster | $45.34 $44.90 | ▲ +0.97% | ▲ +0.53% | $41.50 (+8.47%) |
May 11, 2026 24w ago | 8-K | $43.08 $40.39 | ▼ −6.24% | ▼ −6.16% | $41.50 (−3.67%) |
US Market Status
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