This is a routine passive stake update with no change in investment strategy or control intent. Monitor for any future conversion to Schedule 13D, which would signal activist intent.
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Executive Summary
Sumitomo Mitsui Trust Group filed an amended Schedule 13G disclosing a 5.0% passive stake in Mizuho Financial Group as of September 30, 2026, holding 121,591,698 common shares. The filing is a routine update by a passive institutional investor, with no change in the nature of the investment or activist intent.
Key Financial Metrics
Key Facts
- Sumitomo Mitsui Trust Group reported beneficial ownership of 121,591,698 common shares of Mizuho Financial Group, representing 5.0% of shares outstanding.
- The filing is an amendment to Schedule 13G, indicating passive investment intent under Rule 13d-1(b).
- The stake is held through subsidiaries Sumitomo Mitsui Trust Asset Management Co., Ltd. and Amova Asset Management Co., Ltd. (formerly Nikko Asset Management Co., Ltd., renamed September 1, 2025).
- The reporting person certified that the securities were acquired and are held in the ordinary course of business, not for control purposes.
Financial Impact
Passive 5.0% stake with no transaction details disclosed; no material financial impact.
Risk Factors
- No material risks identified from this filing.
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) | 0001214659-26-013369 |
| Document: 0001214659-26-013369-index.html | 0001214659-26-013369 |
| Document: 0001214659-26-013369.txt | 0001214659-26-013369 |
Track record builds as more directional reports settle.
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 29, 2026 3d ago | SC 13G/A | $9.99 | awaiting T+5 | awaiting T+5 | $9.66 (−3.30%) |
Oct 14, 2026 18d ago | Institutional Cluster | $10.22 $9.71 | ▼ −4.99% | ▼ −3.98% | $9.66 (−5.48%) |
Sep 24, 2026 5w ago | 6-K | $10.56 $10.76 | ▲ +1.89% | ▲ +2.31% | $9.66 (−8.52%) |
Sep 14, 2026 6w ago | 6-K | $11.33 $11.09 | ▼ −2.12% | ▼ −2.22% | $9.66 (−14.74%) |
Sep 1, 2026 8w ago | 6-K | $10.74 $10.94 | ▲ +1.86% | ▲ +1.78% | $9.66 (−10.06%) |
Aug 14, 2026 11w ago | 6-K | $10.87 $10.28 | ▼ −5.43% | ▼ −4.06% | $9.66 (−11.13%) |
Jul 13, 2026 15w ago | 6-K | $10.49 $9.87 | ▼ −5.91% | ▼ −5.13% | $9.66 (−7.91%) |
Jul 1, 2026 17w ago | 6-K | $9.80 $10.19 | ▲ +3.98% | ▲ +3.72% | $9.66 (−1.43%) |
Jul 1, 2026 17w ago | 6-K | $9.80 $10.19 | ▲ +3.98% | ▲ +3.72% | $9.66 (−1.43%) |
Jul 1, 2026 17w ago | 6-K | $9.80 $10.19 | ▲ +3.98% | ▲ +3.72% | $9.66 (−1.43%) |
US Market Status
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