Mizuho Financial Group, Inc.
Mizuho Financial Group, Inc. (MFG) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · MFG · as of Sep 30, 2024
Ownership Breakdown
263
Institutional Holders
▲ 26 vs Q2
$579.18M
Total Inst. Value
▼ $16.96M vs Q2
12.19B
Shares Outstanding
freeFloat 20.00%
138.15M
13F Shares Held
▲ 39.00M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
MFG largest shareholders · institutional ownership
Q3 2024 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
MORGAN STANLEY national commercial banks | 22.81M | 89.99% | 89.99% | $95.34B | May 14, 2025 | ▲ 166.5K |
FMR LLC national commercial banks | 17.62M | 69.53% | 69.53% | $73.66B | Nov 13, 2024 | ▲ 4.17M |
LAZARD ASSET MANAGEMENT LLC national commercial banks | 15.23M | 60.08% | 60.08% | $63.66B | Nov 14, 2024 | NEW |
GOLDMAN SACHS GROUP INC national commercial banks | 13.83M | 54.58% | 54.58% | $57.82B | Nov 14, 2024 | ▲ 403.4K |
BANK OF AMERICA CORP /DE/ national commercial banks | 13.67M | 53.92% | 53.92% | $57.13B | Nov 14, 2024 | ▲ 5.94M |
BLACKROCK, INC. national commercial banks | 9.93M | 39.16% | 39.16% | $41.49B | Nov 13, 2024 | NEW |
NORTHERN TRUST CORP national commercial banks | 5.24M | 20.66% | 20.66% | $21.88B | Nov 13, 2024 | ▼ 44.1K |
NATIXIS ADVISORS, L.P. national commercial banks | 3.36M | 13.24% | 13.24% | $14.03B | Nov 6, 2024 | ▲ 2.61M |
RENAISSANCE TECHNOLOGIES LLC national commercial banks | 2.59M | 10.23% | 10.23% | $10.84B | Nov 13, 2024 | ▲ 350.5K |
AMERICAN CENTURY COMPANIES INC national commercial banks | 2.57M | 10.15% | 10.15% | $10.75B | Nov 12, 2024 | ▲ 180.5K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2024 vs prior quarter
Q3 2024
36
Increased
+20.66M shares5
New Positions
first time holders8
Decreased
−181.5K shares0
Sold Out
fully exitedNet shares change (top 50)
+20.47M
+20.66M / −181.5K
Net new holders
+33
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
MFG insider trading · insider activity
Source: SEC Form 4
5
Buy transactions
10
Sell transactions
0.50
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Kurosawa Tatsuya Group Chief Governance Officer | Jun 1, 2026 | D-Return | 288 | $12993.09 | $3.74M | 4.5K | Form 4 ↗ |
Komatsu Minori See Remarks | Jun 1, 2026 | D-Return | 264 | $11910.34 | $3.14M | 395 | Form 4 ↗ |
Koyama Takeshi Group Chief Strategy Officer | Jun 1, 2026 | D-Return | 420 | $18948.26 | $7.96M | 9.6K | Form 4 ↗ |
Samejima Makoto Group Chief Financial Officer | Jun 1, 2026 | D-Return | 682 | $30768.37 | $20.98M | 4.2K | Form 4 ↗ |
Akamatsu Fusae Group Chief Compliance Officer | Jun 1, 2026 | D-Return | 312 | $14075.85 | $4.39M | 466 | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Mizuho Financial Group, Inc. (MFG) is primarily owned by institutional investors, who hold approximately 1.1% of total shares outstanding. Company insiders own approximately 80.00%, while retail and public investors account for the remaining 18.86%.
The largest institutional shareholder of Mizuho Financial Group, Inc. is MORGAN STANLEY, holding approximately 22.81 million shares — equal to 89.99% of outstanding shares — as of September 30, 2024.
A total of 263 institutional investors currently hold MFG stock, with a combined institutional value of approximately $579,181,975 as of the most recent 13F filing period.
Frequently asked questions
MFG ownershipMizuho Financial Group, Inc. (MFG) is primarily owned by institutional investors, who hold approximately 1.1% of shares. The largest shareholder is MORGAN STANLEY with a 89.99% stake. Company insiders hold 80.00%. Data sourced from SEC Form 13F as of September 30, 2024.