ZeroStack Corp. (ZSTK) grants CFO 250,000 performance-based options

Rhea-AI Filing Summary

ZeroStack Corp. reported that CFO Vaiman Dany received a grant of 250,000 employee stock options on July 20, 2026. The options have a $5.10 exercise price, expire on May 5, 2036, and were approved by the board on March 5, 2026, subject to shareholder approval on July 20, 2026. They vest in five equal 20% installments, with each tranche contingent on ZeroStack’s volume weighted average price reaching specified thresholds.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Vaiman Dany

Role CFO

Type	Security	Shares	Price	Value
Grant/Award	Employee Stock Option ("Right to Buy") F1	250,000	$0.00	$0.00

Holdings After Transaction: Employee Stock Option ("Right to Buy") — 250,000 shares (Direct)

Footnotes (1)

1. F1. The options were approved by the Issuer's board of directors on March 5, 2026, subject to shareholder approval, which occurred on July 20, 2026. The options vest in five equal installments; the vesting of each 20% installment is contingent on the Issuer's volume weighted average price reaching a specified threshold.

Key Figures

Stock options granted: 250,000 options Exercise price: $5.10 per share Underlying common shares: 250,000 shares +5 more

8 metrics

Stock options granted 250,000 options Employee stock options granted to CFO Vaiman Dany on July 20, 2026

Exercise price $5.10 per share Exercise price of the granted employee stock options

Underlying common shares 250,000 shares Common shares underlying the reported stock options

Post-grant derivative holdings 250,000 options Total stock options held directly after the reported grant

Option expiration date 2036-05-05 Expiration date of the granted employee stock options

Vesting installments 5 installments of 20% Options vest in five equal 20% tranches tied to VWAP thresholds

Board approval date March 5, 2026 Board approved the stock option grant subject to shareholder approval

Shareholder approval date July 20, 2026 Shareholders approved the stock option grant

Key Terms

Employee Stock Option ("Right to Buy"), volume weighted average price, shareholder approval

3 terms

Employee Stock Option ("Right to Buy") financial

"Security title is Employee Stock Option ("Right to Buy") for this grant"

volume weighted average price financial

"Vesting is contingent on the Issuer's volume weighted average price reaching a threshold"

The volume weighted average price (VWAP) is a way to measure the average price of a security, such as a stock, over a specific period, taking into account how many units were traded at each price. It’s similar to calculating the average cost of items bought when some are more frequently purchased than others. Investors use VWAP to assess whether a security is being bought or sold at a fair price during trading.

shareholder approval regulatory

"Options were approved by the board, subject to shareholder approval, which occurred on July 20, 2026"

Shareholder approval is a formal vote by a company’s owners—its shareholders—to accept or reject major corporate actions such as mergers, sale of significant assets, board member elections, or changes to the company’s governing rules. It matters to investors because it gives them direct influence over decisions that affect the company’s value and risk profile; think of it like neighbors voting on a large renovation that will change property values, where approval lets the project proceed and rejection stops it.

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

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/20/2026 - 06:21 PM Accepted by SEC EDGAR 07/20/2026 - 06:21 PM Learn about SEC filing dates

FAQ

What insider transaction did ZeroStack Corp. (ZSTK) report for CFO Vaiman Dany?

ZeroStack reported that CFO Vaiman Dany received a grant of 250,000 employee stock options on July 20, 2026. These options are equity compensation, not an open-market stock purchase or sale, and are exercisable into an equal number of common shares.

What are the key terms of the ZeroStack (ZSTK) stock options granted to the CFO?

The grant covers 250,000 options with a $5.10 per share exercise price, expiring on 2036-05-05. The options were approved by the board on March 5, 2026 and became effective after shareholder approval on July 20, 2026.

How do the ZeroStack (ZSTK) CFO’s new options vest?

The options vest in five equal 20% installments. Vesting of each installment is contingent on ZeroStack’s volume weighted average price reaching specified thresholds, making this a performance-based equity incentive rather than purely time-based vesting.

Did the ZeroStack (ZSTK) CFO buy or sell common shares in this Form 4?

No common share purchase or sale is reported. The Form 4 shows a grant of stock options, giving the CFO the right to buy 250,000 common shares at $5.10 in the future, subject to vesting conditions.

Were the ZeroStack (ZSTK) CFO’s options tied to a Rule 10b5-1 trading plan?

The Form 4’s Rule 10b5-1 checkbox is not checked, indicating the reported grant was not affirmed as being made under a pre-established trading plan. It is disclosed as a board- and shareholder-approved compensation award.

When did ZeroStack (ZSTK) board and shareholders approve the CFO option grant?

ZeroStack’s board of directors approved the options on March 5, 2026, subject to shareholder approval. Shareholders subsequently approved the grant on July 20, 2026, the same date used as the transaction date for the options.

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^*

Vaiman Dany

(Last) (First) (Middle)

C/O ZEROSTACK CORP.

2626 COLE AVENUE, SUITE 300

(Street)

DALLAS TEXAS 75204

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
ZeroStack Corp. [ ZSTK ]

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/20/2026

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)
			Code	V	Amount	(A) or (D)	Price

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option ("Right to Buy")	$5.1	07/20/2026		A		250,000		(1)	05/05/2036	Common Shares	250,000	$0	250,000	D

Explanation of Responses:

1. The options were approved by the Issuer's board of directors on March 5, 2026, subject to shareholder approval, which occurred on July 20, 2026. The options vest in five equal installments; the vesting of each 20% installment is contingent on the Issuer's volume weighted average price reaching a specified threshold.

	/s/ Dany Vaiman	07/20/2026
	** 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)