Zerostack (ZSTK)Chair bought ~$3.48M

~$3.48M

Approx. value · 4.61M sh @ $0.7549

4.61M

Holds after · shares reported

Traded

Jul 20, 2026

Filed

Jul 20, 2026

The story around this disclosure

Every dated public record OQRO holds about the company from 60 days before to 120 days after, oldest first. It shows what was going on; none of it is a stated reason for the trade.

1. Jul 20, 2026 · this disclosureInsider · First insider buy since Sep 2024Chair purchased ~$3.48M of ZSTK shares in the open market

What came next

1. Jul 20, 2026Company filing · Form 8-K · Executive change, Bylaws or charterChanged a top executive or board member, and changed its bylaws, charter or fiscal year (and 1 more item)“of Certain Officers ZeroStack Corp., a corporation organized under the laws of the Province of Ontario (the "Company") held its 2026 Annual and Special Meeting of Shareholders (the "Meeting") on July 20, 2026.”
2. Jul 20, 2026Company filing · Form 8-K · Acquisition or saleCompleted buying or selling a business or assets“On July 20, 2026, ZeroStack Corp. (the "Company" or "ZeroStack") announced the closing of the private cryptocurrency financing transaction it previously announced on March 31, 2026 (the "Financing") following shareholder approval of " Proposal 6 - Approval of the Continuance Proposal " set forth in the proxy statement/prospectus (the "Proxy Statement/Prospectus") for the 2026 Annual and Special Meeting of…”
3. Aug 19, 2026Company filing · Form 8-K · Material agreement, Acquisition or saleCompleted buying or selling a business or assets, and changed a top executive or board member (and 2 more items)“In connection with the transaction described in Items 1.01, 2.01, and 3.02 above, on August 19, 2026, the Board of Directors of the Company appointed Rudy Rong as President of the Company, effective as of the closing of the transaction described above.”
4. Aug 19, 2026InsiderOfficer sold ~$7.6K of ZSTK shares in the open market

How to read SEC Form 4

Form 4 is the filing that officers, directors and owners of more than 10% of a US-listed company must send to the SEC within two business days after they buy, sell or otherwise change their holding of the company's stock.

Full guide: What is an SEC Form 4?

What else is on file for Zerostack

For Zerostack, OQRO holds 2 insider filings (SEC Form 4 or Form 144) dated in the last 90 days.

These are records OQRO holds, counted by their date, not a measure of how much trading took place. Routine paperwork such as option exercises and tax withholding is left out. Everything for the company is on its ZSTK page.

How this filing works

• SEC Form 4
• Open-market purchase
• Rule 10b5-1 trading plans

Other disclosures at Zerostack

• SEC Form 4Aug 21, 2026

Everything OQRO holds on this company is on its ZSTK page.