Stephen Paul Patak - 12 Jul 2026 Form 4 Insider Report for Blaize Holdings, Inc. (BZAI)

Reporting relationship: Chief Revenue Officer
Issuer ticker: BZAI
Reported as of: 12 Jul 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 13 Jul 2026, 16:35:30 UTC
Prior SEC filing: 14 Apr 2026
Source filing: View source filing
Reporting owner signature: /s/ Emilie McLaughlin as attorney-in-fact for Stephen Paul Patak

Key filing fact

Stephen Paul Patak filed Form 4 for Blaize Holdings, Inc. (BZAI) on 13 Jul 2026.

Key facts

This page summarizes Stephen Paul Patak's Form 4 filing for Blaize Holdings, Inc. (BZAI).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 13 Jul 2026, 16:35.

Change

Previous filing in this sequence was filed on 14 Apr 2026.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002123306 Primary reporting owner

Patak Stephen Paul

Relationship: Chief Revenue Officer
Address: C/O BLAIZE HOLDINGS, INC., 4659 GOLDEN FOOTHILL PARKWAY, SUITE 206, EL DORADO HILLS
Signature: /s/ Emilie McLaughlin as attorney-in-fact for Stephen Paul Patak
Signature date: 13 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

BZAI transaction

Common Stock

Options Exercise

Transaction value
Shares: +2,500
Change %: +100%
Price: $0.000000^*
Shares after: 5,000
Date: 12 Jul 2026
Ownership: Direct
Footnotes: F1, F2

BZAI transaction

Common Stock

Tax liability

Transaction value
Shares: -609
Change %: -12%
Price: $1.23^*
Shares after: 4,391
Date: 12 Jul 2026
Ownership: Direct

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

BZAI transaction Derivative

Restricted Stock Units

Options Exercise

Transaction value
Shares: -2,500
Change %: -14%
Price: $0.000000^*
Shares after: 15,000
Date: 12 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 2,500
Exercise price: $0.000000
Footnotes: F3

BZAI holding Derivative

Employee Stock Option (right to purchase)

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 800,000
Date: 12 Jul 2026
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 800,000
Exercise price: $1.18
Footnotes: F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

Represents the conversion of restricted stock units that vested on July 12, 2026.

Footnote F2

Each restricted stock unit represents a contingent right to receive one share of Blaize Holdings, Inc. common stock.

Footnote F3

These time based restricted stock units vest in eight quarterly installments, commencing April 12, 2026.

Footnote F4

The reporting person's stock options vest 25% on January 12, 2027 and quarterly thereafter.