Daniel Reis-Faria - 20 Jul 2026 Form 4 Insider Report for ZeroStack Corp. (ZSTK)

Reporting relationship: CEO, Director
Issuer ticker: ZSTK
Reported as of: 20 Jul 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 20 Jul 2026, 18:26:15 UTC
Prior SEC filing: 22 Dec 2025
Source filing: View source filing
Reporting owner signature: /s/ Dany Vaiman as attorney-in-fact for Daniel Reis-Faria

Key filing fact

Daniel Reis-Faria filed Form 4 for ZeroStack Corp. (ZSTK) on 20 Jul 2026.

Key facts

This page summarizes Daniel Reis-Faria's Form 4 filing for ZeroStack Corp. (ZSTK).
3 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 20 Jul 2026, 18:26.

Change

Previous filing in this sequence was filed on 22 Dec 2025.
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 0002089970 Primary reporting owner

Reis-Faria Daniel

Relationship: CEO, Director
Address: C/O ZEROSTACK CORP., 2626 COLE AVENUE, SUITE 300, DALLAS
Signature: /s/ Dany Vaiman as attorney-in-fact for Daniel Reis-Faria
Signature date: 20 Jul 2026

Reported non-derivative transactions

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

ZSTK transaction

Common Shares

Exercise of in-the-money or at-the-money derivative security

Transaction value
Shares: +5,954,743
Change %
Price: $0.000100^*
Shares after: 5,954,743
Date: 20 Jul 2026
Ownership: Direct

Reported derivative securities

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

ZSTK transaction Derivative

Employee Stock Option (Right to Buy)

Award

Transaction value
Shares: +500,000
Change %
Price: $0.000000^*
Shares after: 500,000
Date: 20 Jul 2026
Ownership: Direct
Underlying class: Common Shares
Underlying amount: 500,000
Exercise price: $5.10
Footnotes: F1

ZSTK transaction Derivative

Pre-Funded Token Warrants

Exercise of in-the-money or at-the-money derivative security

Transaction value
Shares: -5,954,743
Change %: -100%
Price: $25.19^*
Shares after: 0
Date: 20 Jul 2026
Ownership: Direct
Underlying class: Common Shares
Underlying amount: 5,954,743
Exercise price: $0.000100
Footnotes: F2

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

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 2 footnotes

Footnote 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.

Footnote F2

The warrants were not exercisable until approved by the Issuer's shareholders and terminated upon full exercise of the warrants