Blaize Holdings, Inc.
Ownership
Ownership Structure
Who owns Blaize Holdings, Inc. (BZAI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 69.5% of the shares are freely tradable; institutional investors hold 34.7%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 5.10 | 7,387,308 | +30.9 | 06/30/2026 |
| Vanguard Capital Management, LLC | 3.21 | 4,654,065 | +29.8 | 06/30/2026 |
| Geode Capital Management, LLC | 1.48 | 2,136,932 | +20.4 | 06/30/2026 |
| Lazard Asset Management LLC | 1.37 | 1,986,835 | +65.0 | 06/30/2026 |
| UBS Group AG | 1.25 | 1,807,978 | +17.2 | 06/30/2026 |
| Marshall Wace Asset Management Ltd | 1.11 | 1,607,810 | +0.0 | 06/30/2026 |
| State Street Corp | 1.09 | 1,572,428 | +14.0 | 06/30/2026 |
| AQR Capital Management LLC | 1.04 | 1,501,041 | +23.9 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 2.49 | 3,611,806 | +0.0 | 09/30/2026 |
| iShares Russell 2000 ETF | 2.12 | 3,065,553 | -1.1 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Bess Lane | Director | 14,446,783 | 2,788,229 $ | Jul 7, 2026 | indirect |
| Evans Kimberly Peterson | General Counsel | 60,033 | 11,586 $ | Sep 1, 2026 | direct |
| Patak Stephen Paul | Chief Revenue Officer | 6,282 | 1,212 $ | Oct 12, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Oct 12, 2026 | Patak Stephen Paul | Chief Revenue Officer | Other | 609 | 0.29 | 177 |
| Oct 12, 2026 | Patak Stephen Paul | Chief Revenue Officer | Other | 2,500 | 0.00 | – |
| Sep 1, 2026 | Evans Kimberly Peterson | General Counsel | Other | 6,728 | 0.49 | 3,297 |
| Sep 1, 2026 | Evans Kimberly Peterson | General Counsel | Other | 18,750 | 0.00 | – |
| Jul 12, 2026 | Patak Stephen Paul | Chief Revenue Officer | Other | 609 | 1.23 | 749 |
| Jul 12, 2026 | Patak Stephen Paul | Chief Revenue Officer | Other | 2,500 | 0.00 | – |
| Jul 7, 2026 | Bess Lane | Director | Other | 2,000,000 | 0.00 | – |
| Jul 6, 2026 | Cannestra Anthony | Director | Sell | 50,000 | 1.35 | 67,500 |
| Jul 6, 2026 | Cannestra Anthony | Director | Other | 50,000 | 0.57 | 28,500 |
| Apr 20, 2026 | Harminder Sehmi | CFO | Sell | 123,460 | 2.28 | 281,489 |
| Apr 17, 2026 | Dinakar Munagala | CEO | Sell | 50,000 | 2.54 | 127,000 |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 2, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.