Blaize Holdings, Inc.
Blaize Holdings, Inc. (BZAI) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · BZAI · as of Sep 30, 2025
Ownership Breakdown
80
Institutional Holders
▲ 36 vs Q2
$94.77M
Total Inst. Value
▲ $50.39M vs Q2
111.81M
Shares Outstanding
freeFloat 48.31%
24.13M
13F Shares Held
▲ 9.42M 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
BZAI largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
TEMASEK HOLDINGS (PRIVATE) LTD semiconductors & related devices | 6.35M | 6.07% | 6.07% | $21.92B | Nov 14, 2025 | — held |
BLACKROCK, INC. semiconductors & related devices | 4.66M | 4.45% | 4.45% | $16.07B | Nov 12, 2025 | ▲ 3.69M |
VANGUARD GROUP INC semiconductors & related devices | 3.59M | 3.43% | 3.43% | $12.38B | Nov 7, 2025 | ▲ 2.70M |
GEODE CAPITAL MANAGEMENT, LLC semiconductors & related devices | 1.47M | 1.41% | 1.41% | $5.07B | Nov 12, 2025 | ▲ 815.0K |
STATE STREET CORP semiconductors & related devices | 1.26M | 1.21% | 1.21% | $4.36B | Nov 14, 2025 | ▲ 1.02M |
MARSHALL WACE, LLP semiconductors & related devices | 1.20M | 1.15% | 1.15% | $4.13B | Nov 13, 2025 | NEW |
NORTHERN TRUST CORP semiconductors & related devices | 631.3K | 60.36% | 60.36% | $2.18B | Nov 14, 2025 | ▲ 493.9K |
FRANKLIN RESOURCES INC semiconductors & related devices | 563.4K | 53.87% | 53.87% | $13.44B | Nov 13, 2025 | ▼ 3.13M |
UBS GROUP AG semiconductors & related devices | 529.9K | 50.67% | 50.67% | $1.83B | Nov 13, 2025 | ▲ 349.8K |
CHARLES SCHWAB INVESTMENT MANAGEMENT INC semiconductors & related devices | 479.5K | 45.85% | 45.85% | $1.65B | Nov 10, 2025 | ▲ 159.7K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
21
Increased
+10.82M shares20
New Positions
first time holders3
Decreased
−3.24M shares0
Sold Out
fully exitedNet shares change (top 50)
+7.58M
+10.82M / −3.24M
Net new holders
+38
20 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
BZAI insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
7
Buy transactions
10
Sell transactions
0.70
Buy/Sell ratio
$1M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Evans Kimberly Peterson General Counsel | Jun 1, 2026 | Tax Withhold | 26,989 | $1.76 | $47.5K | 48.0K | Form 4 ↗ |
Sehmi Harminder Chief Financial Officer | Jun 1, 2026 | Sale | 40,609 | $1.82 | $73.9K | 300.4K | Form 4 ↗ |
Cannestra Anthony director | May 11, 2026 | Sale | 50,000 | $1.85 | $92.5K | 0 | Form 4 ↗ |
Bess Lane director | May 8, 2026 | J-Other | 2,000,000 | — | — | 12.45M | Form 4 ↗ |
Bess Ventures & Advisory, LLC 10 percent owner | May 8, 2026 | J-Other | 2,000,000 | $1.83 | $3.66M | 13.65M | Form 4 ↗ |
Sehmi Harminder Chief Financial Officer | May 1, 2026 | Sale | 40,609 | $1.97 | $80.0K | 341.0K | Form 4 ↗ |
Sehmi Harminder Chief Financial Officer | Apr 20, 2026 | Sale | 123,460 | $2.28 | $281.5K | 381.6K | Form 4 ↗ |
Munagala Dinakar Chief Executive Officer | Apr 17, 2026 | Sale | 50,000 | $2.54 | $127.0K | 551.4K | 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
Blaize Holdings, Inc. (BZAI) is primarily owned by institutional investors, who hold approximately 21.6% of total shares outstanding. Company insiders own approximately 51.69%, while retail and public investors account for the remaining 26.73%.
The largest institutional shareholder of Blaize Holdings, Inc. is TEMASEK HOLDINGS (PRIVATE) LTD, holding approximately 6.35 million shares — equal to 6.07% of outstanding shares — as of September 30, 2025.
A total of 80 institutional investors currently hold BZAI stock, with a combined institutional value of approximately $94,766,913 as of the most recent 13F filing period.
Frequently asked questions
BZAI ownershipBlaize Holdings, Inc. (BZAI) is primarily owned by institutional investors, who hold approximately 21.6% of shares. The largest shareholder is TEMASEK HOLDINGS (PRIVATE) LTD with a 6.07% stake. Company insiders hold 51.69%. Data sourced from SEC Form 13F as of September 30, 2025.