Blaize Holdings revenue chief acquires 2,500 shares

Q: How many BZAI shares did Stephen Paul Patak receive from RSUs?

Stephen Paul Patak acquired 2,500 Blaize Holdings common shares when 2,500 restricted stock units vested and converted on October 12, 2026. Each restricted stock unit represents a contingent right to receive one common share.

Q: What happened to 609 BZAI shares reported by Stephen Paul Patak?

On October 12, 2026, 609 common shares were delivered or withheld for payment of exercise price or tax liability.

Q: How do Stephen Paul Patak's BZAI employee stock options vest?

The reported employee stock options vest 25% on January 12, 2027, and quarterly thereafter.

The Chief Revenue Officer's reported option position covers 800,000 underlying shares and expires on March 29, 2036.

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Form Type

Rhea-AI Filing Summary

Blaize Holdings, Inc. (BZAI) Chief Revenue Officer Stephen Paul Patak converted 2,500 restricted stock units that vested on October 12, 2026, into 2,500 common shares. His reported RSU position following the transaction was 12,500. On the same date, 609 common shares were delivered or withheld for payment of exercise price or tax liability. The reported directly held employee stock options cover 800,000 underlying common shares at a $1.18 exercise price and expire on March 29, 2036.

Insider Trade Summary

2,500 shares exercised/converted

Exercise 4 txns

Insider Patak Stephen Paul

Role Chief Revenue Officer

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units ^F3	2,500	$0.00	$0.00
Exercise	Common Stock ^{F1, F2}	2,500	$0.00	$0.00
Exercise Price or Tax Liability	Common Stock	609	$0.29	$176.61
holding	Employee Stock Option (right to purchase) ^F4	--	--	--

Holdings After Transaction: Restricted Stock Units — 12,500 contracts (Direct); Common Stock — 6,282 shares (Direct); Employee Stock Option (right to purchase) — 800,000 contracts (Direct)

Footnotes (4)

F1. Represents the conversion of restricted stock units that vested on October 12, 2026.
F2. Each restricted stock unit represents a contingent right to receive one share of Blaize Holdings, Inc. common stock.
F3. These time based restricted stock units vest in eight quarterly installments, commencing April 12, 2026.
F4. The reporting person's stock options vest 25% on January 12, 2027 and quarterly thereafter.

Key Figures

Restricted stock units converted: 2,500 units Common shares acquired: 2,500 shares Restricted stock units following transaction: 12,500 units +4 more

7 metrics

Restricted stock units converted 2,500 units Vested and converted on October 12, 2026

Common shares acquired 2,500 shares On October 12, 2026, upon conversion of restricted stock units

Restricted stock units following transaction 12,500 units Reported position following the October 12, 2026 transaction

Shares delivered or withheld 609 shares For payment of exercise price or tax liability on October 12, 2026

Employee stock options 800,000 underlying common shares Directly held; reported in the filing

Exercise price $1.18 per share Reported employee stock options

Option expiration date March 29, 2036 Reported employee stock options

Key Terms

Restricted Stock Units, contingent right, Employee Stock Option (right to purchase), exercise price or tax liability

4 terms

Restricted Stock Units financial

"conversion of restricted stock units that vested"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

contingent right financial

"contingent right to receive one share"

Employee Stock Option (right to purchase) financial

"Employee Stock Option (right to purchase)"

exercise price or tax liability financial

"payment of exercise price or tax liability"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many BZAI shares did Stephen Paul Patak receive from RSUs?

Stephen Paul Patak acquired 2,500 Blaize Holdings common shares when 2,500 restricted stock units vested and converted on October 12, 2026. Each restricted stock unit represents a contingent right to receive one common share.

What happened to 609 BZAI shares reported by Stephen Paul Patak?

On October 12, 2026, 609 common shares were delivered or withheld for payment of exercise price or tax liability.

How do Stephen Paul Patak's BZAI employee stock options vest?

The reported employee stock options vest 25% on January 12, 2027, and quarterly thereafter.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/13/2026 - 05:39 PM EDT Accepted by SEC EDGAR 10/13/2026 - 05:39 PM EDT

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Patak Stephen Paul

(Last)

(First)

(Middle)

C/O BLAIZE HOLDINGS, INC.

2890 ZANKER ROAD, SUITE 107

(Street)

SAN JOSE

CALIFORNIA

95134

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Blaize Holdings, Inc. [ BZAI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Revenue Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/12/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/12/2026		M		2,500⁽¹⁾	A	$0⁽²⁾	6,891	D
Common Stock	10/12/2026		F		609	D	$0.29	6,282	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	$0⁽³⁾	10/12/2026		M			2,500	⁽³⁾	⁽³⁾	Common Stock	2,500	$0	12,500	D
Employee Stock Option (right to purchase)	$1.18							⁽⁴⁾	03/29/2036	Common Stock	800,000		800,000	D

Explanation of Responses:

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

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

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

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

Remarks:

	/s/ Emilie McLaughlin as attorney-in-fact for Stephen Paul Patak	10/13/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR