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  2. SECTOR : PHARMA & BIOTECH
  3. INDUSTRY : SPECIALTY PHARMACEUTICALS
  4. ZEROSTACK CORP.
ZeroStack Corp. XNAS: ZSTK
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11.80 2.85 (31.84%)
74.89% Fall from 52W High
1.7M
XNAS Volume
High volume+gain today

XNAS 29 Jan, 2026 4:30 PM (EST)

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Insider Trading disclosures for ZeroStack Corp

The latest disclosure was made by Michael Heinrich in ZeroStack Corp where a trade of 471,208 Director Stock Option (Right to Buy) done was reported to US exchanges on Dec. 19, 2025.

Insider trading is the trading of a company’s securities by individuals with access to confidential or material non-public information about the company. A company is required to report trading by corporate officers, directors, or other company members with significant access to privileged information to the Securities and Exchange Commission (SEC).

Client Name Client Category Action Reported to Exchange Quantity Post Transaction Holding Traded % Avg. Price Value Security Type
Michael Heinrich Director, Executive Chairman Grant, award, or other acquisition of securities at price $ 0.00 per share. 19 Dec 2025 471,208 471,208 - - Director Stock Option (Right to Buy)
Daniel Reis-Faria Director, CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 19 Dec 2025 471,208 471,208 - - Employee Stock Option (Right to Buy)
Dany Vaiman CFO Grant, award, or other acquisition of securities at price $ 0.00 per share. 19 Dec 2025 235,604 235,604 - - Employee Stock Option ("Right to Buy")
Michael Heinrich Director, Executive Chairman 23 Oct 2025 4,902,220 4,902,220 - - Convertible Promissory Note
Daniel Reis-Faria Director, CEO Purchase of securities on an exchange or from another person at price $ 0.00 per share. 09 Oct 2025 5,954,743 5,954,743 - - Pre-Funded Token Warrants
Dany Vaiman CFO Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2025 342,888 342,888 - - Stock Appreciation Rights ("SARs")
Harold M. Wolkin Director Sale or transfer of securities back to the company at price $ 0.00 per share. 30 Jun 2025 30,000 0 - - Stock Appreciation Rights ("SARs")
Harold M. Wolkin Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2025 30,000 30,000 - - Stock Appreciation Rights ("SARs")
Clifford Starke Director, CEO Sale or transfer of securities back to the company at price $ 0.00 per share. 30 Jun 2025 1,028,665 0 - - Stock Appreciation Rights ("SARs")
Clifford Starke Director, CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2025 1,028,665 1,028,665 - - Stock Appreciation Rights ("SARs")
Clifford Starke Director, CEO Sale or transfer of securities back to the company at price $ 0.00 per share. 30 Jun 2025 575,319 0 - - Stock Appreciation Rights ("SARs")
Clifford Starke Director, CEO Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2025 575,319 575,319 - - Stock Appreciation Rights ("SARs")
Dany Vaiman CFO Sale or transfer of securities back to the company at price $ 0.00 per share. 30 Jun 2025 342,888 0 - - Stock Appreciation Rights ("SARs")
Dany Vaiman CFO Sale or transfer of securities back to the company at price $ 0.00 per share. 30 Jun 2025 191,773 0 - - Stock Appreciation Rights ("SARs")
Dany Vaiman CFO Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2025 191,773 191,773 - - Stock Appreciation Rights ("SARs")
Dany Vaiman CFO Sale or transfer of securities back to the company at price $ 0.00 per share. 30 Jun 2025 372,500 0 - - Stock Appreciation Rights ("SARs")
Dany Vaiman CFO Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2025 372,500 372,500 - - Stock Appreciation Rights ("SARs")
Manfred Leventhal Director Sale or transfer of securities back to the company at price $ 0.00 per share. 30 Jun 2025 5,000 0 - - Stock Appreciation Rights ("SARs")
Manfred Leventhal Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 30 Jun 2025 5,000 5,000 - - Stock Appreciation Rights ("SARs")
Harold M. Wolkin Director 15 Dec 2024 30,000 30,000 - - Stock Appreciation Rights ("SARs")
Manfred Leventhal Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Dec 2024 5,000 5,000 - - Stock Appreciation Rights ("SARs")
Sammy Dorf Director, Executive Chairman 15 Dec 2024 250,000 250,000 - - Common Shares
Dany Vaiman CFO Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Dec 2024 372,500 372,500 - - Stock Appreciation Rights ("SARs")
Edward Woo Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Dec 2024 50,000 134,698 - - Common Shares
Clifford Starke Director, CEO 15 Dec 2024 900,000 906,846 - - Common Shares
Clifford Starke Director, CEO 13 Sep 2024 6,795 6,846 - 0.9 6,455 Common Shares
Harold M. Wolkin Director 06 Sep 2024 15,000 25,000 - 1.0 14,685 Common Shares
Harold M. Wolkin Director 06 Sep 2024 5,000 10,000 - 1.0 4,760 Common Shares
Harold M. Wolkin Director 06 Sep 2024 5,000 5,000 - 1.0 4,810 Common Shares
Clifford Starke Director, CEO 08 Apr 2024 526,315 565,714 - 1.9 999,999 Common Shares
Clifford Starke Director, CEO 15 Dec 2023 575,319 575,319 - - Stock Appreciation Rights ("SARs")
Clifford Starke Director, CEO 15 Dec 2023 51 474,046 - 0.9 48 Common Shares
Clifford Starke Director, CEO 15 Dec 2023 1,028,665 1,028,665 - - Stock Appreciation Rights ("SARs")
Dany Vaiman CFO Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Dec 2023 191,773 191,773 - - Stock Appreciation Rights ("SARs")
Dany Vaiman CFO Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Dec 2023 342,888 342,888 - - Stock Appreciation Rights ("SARs")
Clifford Starke Director, CEO 15 Nov 2023 327,851 473,995 - - Common Shares
Edward Woo Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Nov 2023 74,512 84,698 - - Common Shares
Dany Vaiman CFO Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Nov 2023 149,024 170,850 - - Common Shares
Kevin Taylor Director, Chairman Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Nov 2023 124,186 124,186 - - Common Shares
Thomas Solomon Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 15 Nov 2023 35,766 35,766 - - Common Shares
Hussein Rakine Director Sale or transfer of securities back to the company at price $ 0.00 per share. 25 Jun 2023 82,100 2,500 - 0 Common Shares
Matthew Cohen General Counsel Payment of exercise price or tax liability using portion of securities received from the company at price $ 0.24 per share. 18 May 2023 90,146 329,610 - 0.2 21,635 Common Shares
Hussein Rakine Director, Chief Executive Officer Grant, award, or other acquisition of securities at price $ 0.00 per share. 16 Apr 2023 1,200,000 1,692,019 - 0 Common Shares
Carlos Gomez Roa Juan Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 17 Mar 2023 150,000 2,042,509 - 0 Common Shares
Edward Woo Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 17 Mar 2023 100,000 100,000 - - Options (Right to Buy)
Marc Mastronardi Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 17 Mar 2023 150,000 160,000 - 0 Common Shares
John Timothy Leslie Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 17 Mar 2023 125,000 138,574 - 0 Common Shares
Brandon Konigsberg Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 17 Mar 2023 100,000 100,000 - 0 Common Shares
Beverley Richardson Director Grant, award, or other acquisition of securities at price $ 0.00 per share. 17 Mar 2023 150,000 150,000 - 0 Common Shares
*All Values are in $ Million
Client Category: Promoter/ KMP/ Director / Immediate Relatives / Employee / etc  
Security Type: Share/ Warrants / Convertible Debentures
Data as reported to USA Exchanges
View All The Insider Trades disclosures
Screeners based on Insider Trading and SAST parameters