STOCK TITAN

50K Blaize (BZAI) shares sold as CEO exercises options under 10b5-1

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Blaize Holdings CEO Munagala Dinakar reported an exercise-and-sale transaction in company stock. On the same date, he exercised stock options for 50,000 shares of common stock at $0.57 per share and sold 50,000 shares at a weighted average price of $2.54, all under a pre-arranged Rule 10b5-1 trading plan.

Following these transactions, he directly owns 551,422 shares of common stock and continues to hold significant equity-based incentives, including stock options, restricted stock units, and earnout shares tied to future stock price performance and vesting schedules.

Positive

  • None.

Negative

  • None.
Insider Munagala Dinakar
Role Chief Executive Officer
Sold 50,000 shs ($127K)
Type Security Shares Price Value
Exercise Employee Stock Option (right to purchase) 50,000 $0.00 --
Exercise Common Stock 50,000 $0.57 $28K
Sale Common Stock 50,000 $2.54 $127K
holding Restricted Stock Units -- -- --
holding Earnout Shares -- -- --
holding Employee Stock Option (right to purchase) -- -- --
holding Employee Stock Option (right to purchase) -- -- --
holding Employee Stock Option (right to purchase) -- -- --
Holdings After Transaction: Employee Stock Option (right to purchase) — 4,100,347 shares (Direct, null); Common Stock — 601,422 shares (Direct, null); Restricted Stock Units — 2,421,971 shares (Direct, null); Earnout Shares — 1,371,303 shares (Direct, null)
Footnotes (1)
  1. The reported exercise of 50,000 stock options underlying 50,000 shares of the Issuer's common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025 (the "10b5-1 trading plan"). In the reporting person's prior Form 4 filings, earnout shares and unvested restricted stock units had been reported in Table I. These holdings have been moved to Table II, and there have been no transactions in such holdings since the reporting person's last Form 4 filing. The reported sales were effected pursuant to the reporting person's Rule 10b5-1 trading plan. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.50 to $2.63, inclusive. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided. The stock option vests in 36 substantially equal monthly installments beginning on October 19, 2023. Represents securities received as part of the Issuer's business combination, in connection with that certain Agreement and Plan of Merger, dated as of December 22, 2023 and amended on April 22, 2024, October 24, 2024, and November 21, 2024 (the "Merger Agreement") by and among the Issuer (formerly BurTech Acquisition Corp.), BurTech Merger Sub, Inc., Blaize, Inc. ("Legacy Blaize"), and for the limited purposes set forth therein, Burkhan Capital LLC, pursuant to which securities of Legacy Blaize were automatically converted into the right to receive stock options of the Issuer as set forth in the Merger Agreement. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. The restricted stock units vest 25% on December 1, 2027, and quarterly thereafter commencing on March 1, 2028. On January 13, 2025, the date of the Issuer's business combination, the reporting person received earnout shares in respect of the Issuer's business combination. Each eanout share represents a contingent right to receive one share of the Issuer's common stock if the trading price of the Issuer's common stock exceeds certain thresholds for 20 of 30 consecutive trading days post-closing of the Issuer's business combination. The stock option vests as to one third of the underlying shares on July 1, 2025 and thereafter in 24 equal monthly installments. The stock option to purchase one share of the Issuer's common stock for each stock option is fully vested and exercisable.
Shares sold 50,000 shares Common stock sale on 2026-04-17 at weighted average $2.54
Sale price $2.54 per share Weighted average; trades ranged from $2.50 to $2.63
Options exercised 50,000 shares Stock options exercised at $0.57 per share (Code M)
Shares held after 551,422 shares Direct common stock ownership after reported transactions
Large option grant 5,755,192 underlying shares Employee stock option at $1.18, expiring 2034-10-23
Earnout shares 1,371,303 underlying shares Contingent rights tied to post-combination trading price
RSU position 2,421,971 units Each RSU represents one future share; vests starting 2027-12-01
Rule 10b5-1 trading plan regulatory
"effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person"
A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.
Employee Stock Option (right to purchase) financial
"Employee Stock Option (right to purchase) underlying shares of the Issuer's common stock"
earnout shares financial
"earnout shares in respect of the Issuer's business combination"
Earnout shares are company stock promised to sellers as part of an acquisition that only becomes payable if the acquired business hits agreed future performance targets, like revenue or profit goals. They matter to investors because they can increase the number of shares outstanding (dilution), tie seller incentives to future success, and create uncertainty about the actual cost of the deal and future ownership unless the performance conditions are clearly understood.
Restricted Stock Units financial
"Restricted Stock Units vest 25% on December 1, 2027, and quarterly thereafter"
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.
weighted average price financial
"The price reported in Column 4 is a weighted average price"
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
SEC Form 4
FORM 4UNITED 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).
X
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*
Munagala Dinakar

(Last)(First)(Middle)
C/O BLAIZE HOLDINGS, INC.
4659 GOLDEN FOOTHILL PARKWAY, SUITE 206

(Street)
EL DORADO HILLS CALIFORNIA 95762

(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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chief Executive Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
04/17/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock04/17/2026M50,000(1)A$0.57601,422(2)D
Common Stock04/17/2026S50,000(3)D$2.54(4)551,422D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Employee Stock Option (right to purchase)$0.5704/17/2026M50,000(1) (5)09/18/2033Common Stock50,000(6)4,100,347D
Restricted Stock Units(7) (8) (8)Common Stock2,421,9712,421,971D
Earnout Shares(9) (9)01/13/2030Common Stock1,371,3031,371,303D
Employee Stock Option (right to purchase)$1.18 (10)10/23/2034Common Stock5,755,1925,755,192D
Employee Stock Option (right to purchase)$1.29 (11)03/15/2027Common Stock114,650114,650D
Employee Stock Option (right to purchase)$14.62 (11)11/12/2028Common Stock176,503176,503D
Explanation of Responses:
1. The reported exercise of 50,000 stock options underlying 50,000 shares of the Issuer's common stock was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025 (the "10b5-1 trading plan").
2. In the reporting person's prior Form 4 filings, earnout shares and unvested restricted stock units had been reported in Table I. These holdings have been moved to Table II, and there have been no transactions in such holdings since the reporting person's last Form 4 filing.
3. The reported sales were effected pursuant to the reporting person's Rule 10b5-1 trading plan.
4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $2.50 to $2.63, inclusive. Upon request by the SEC staff, the Issuer, or any security holder of the Issuer, full information regarding the number of shares sold at each separate price will be provided.
5. The stock option vests in 36 substantially equal monthly installments beginning on October 19, 2023.
6. Represents securities received as part of the Issuer's business combination, in connection with that certain Agreement and Plan of Merger, dated as of December 22, 2023 and amended on April 22, 2024, October 24, 2024, and November 21, 2024 (the "Merger Agreement") by and among the Issuer (formerly BurTech Acquisition Corp.), BurTech Merger Sub, Inc., Blaize, Inc. ("Legacy Blaize"), and for the limited purposes set forth therein, Burkhan Capital LLC, pursuant to which securities of Legacy Blaize were automatically converted into the right to receive stock options of the Issuer as set forth in the Merger Agreement.
7. Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock.
8. The restricted stock units vest 25% on December 1, 2027, and quarterly thereafter commencing on March 1, 2028.
9. On January 13, 2025, the date of the Issuer's business combination, the reporting person received earnout shares in respect of the Issuer's business combination. Each eanout share represents a contingent right to receive one share of the Issuer's common stock if the trading price of the Issuer's common stock exceeds certain thresholds for 20 of 30 consecutive trading days post-closing of the Issuer's business combination.
10. The stock option vests as to one third of the underlying shares on July 1, 2025 and thereafter in 24 equal monthly installments.
11. The stock option to purchase one share of the Issuer's common stock for each stock option is fully vested and exercisable.
Remarks:
/s/ Harminder Sehmi, as Attorney-in-Fact04/20/2026
** Signature of Reporting PersonDate
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)

FAQ

What insider transaction did Blaize Holdings (BZAI) report for Munagala Dinakar?

Blaize Holdings reported that CEO Munagala Dinakar exercised stock options for 50,000 shares and sold 50,000 shares of common stock. Both actions occurred on the same date and were executed under a pre-arranged Rule 10b5-1 trading plan, indicating a structured, routine liquidity event.

How many Blaize (BZAI) shares did the CEO sell and at what price?

The CEO sold 50,000 shares of Blaize common stock at a weighted average price of $2.54 per share. The sale was executed in multiple trades between $2.50 and $2.63, all pursuant to his Rule 10b5-1 trading plan disclosed in the filing’s footnotes.

How many Blaize (BZAI) shares does the CEO hold after this Form 4 transaction?

After the reported transactions, CEO Munagala Dinakar directly holds 551,422 shares of Blaize common stock. This share count reflects his position following the 50,000-share option exercise and the 50,000-share sale reported for the same transaction date.

What stock options does the Blaize (BZAI) CEO still hold after the transaction?

The CEO continues to hold employee stock options over millions of underlying Blaize shares at exercise prices of $14.62, $1.29, and $1.18. These options have expiration dates ranging from 2027 to 2034, providing long-term potential equity exposure to the company’s future performance.

What are the earnout shares reported for the Blaize (BZAI) CEO?

The filing shows 1,371,303 earnout shares for the CEO, each representing a contingent right to receive one Blaize share. These convert only if the company’s stock trades above specified thresholds for 20 of 30 consecutive trading days after the business combination closing date.

What restricted stock units (RSUs) does the Blaize (BZAI) CEO hold?

The CEO holds 2,421,971 restricted stock units, each convertible into one share of Blaize common stock. These RSUs vest 25% on December 1, 2027, and continue vesting quarterly beginning March 1, 2028, aligning compensation with longer-term company performance and retention.