Monitor for any future amendments that show a material increase or decrease in Vanguard's stake, or a conversion to a 13D filing, which would signal a change in investment intent.
Price Chart
Executive Summary
Vanguard Portfolio Management LLC filed an amended Schedule 13G disclosing beneficial ownership of 3,676,303 shares of AtriCure common stock as of September 30, 2026, representing 7.22% of shares outstanding. This is a routine passive stake update with no change in investment intent.
Key Financial Metrics
Key Facts
- Vanguard Portfolio Management LLC reported beneficial ownership of 3,676,303 shares of AtriCure common stock as of September 30, 2026.
- The stake represents 7.22% of shares outstanding.
- The filing is an amendment to a prior Schedule 13G, indicating a passive investment intent under Rule 13d-1(b).
- The filing certifies the securities were acquired and are held in the ordinary course of business, not for changing or influencing control.
Financial Impact
No financial impact; the filing is a routine passive stake update with no change in investment intent.
Risk Factors
- No material risks identified from this filing; it is a routine passive ownership disclosure.
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 3 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| SC 13G/A Filing (Primary) | 0002100121-26-001066 |
| Document: 0002100121-26-001066-index.html | 0002100121-26-001066 |
| Document: 0002100121-26-001066.txt | 0002100121-26-001066 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 30, 2026 2d ago | SC 13G/A | $60.77 | awaiting T+5 | awaiting T+5 | $61.25 (+0.80%) |
Oct 5, 2026 27d ago | SC 13G/A | $56.37 $57.28 | ▲ +1.61% | ▲ +1.19% | $61.25 (+8.66%) |
Sep 14, 2026 6w ago | Insider Cluster | $56.22 $58.83 | ▲ +4.64% | ▲ +2.53% | $61.25 (+8.95%) |
Aug 7, 2026 12w ago | Insider Cluster | $41.39 $44.30 | ▲ +7.03% | ▲ +6.63% | $61.25 (+47.98%) |
Jul 30, 2026 13w ago | Insider Cluster | $37.76 $41.39 | ▲ +9.61% | ▲ +6.10% | $61.25 (+62.21%) |
Jul 30, 2026 13w ago | Insider Cluster | $37.76 $41.39 | ▲ +9.61% | ▲ +6.10% | $61.25 (+62.21%) |
Jul 23, 2026 14w ago | 8-K | $35.04 $40.15 | ▲ +14.58% | ▲ +14.21% | $61.25 (+74.80%) |
Jun 14, 2026 20w ago | Institutional Cluster | $27.98 $28.44 | ▲ +1.64% | ▲ +3.03% | $61.25 (+118.91%) |
Jun 11, 2026 20w ago | Institutional Cluster | $28.41 $27.12 | ▲ +4.54% | ▲ +4.97% | $61.25 (−115.59%) |
May 22, 2026 23w ago | Insider Cluster | $28.29 $26.48 | ▼ −6.40% | ▼ −8.07% | $61.25 (+116.51%) |
US Market Status
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