Heinrich Michael → ZeroStack Corp. ZSTK

Stake: — Shares: 5,579,783 Class: Common Shares, no par value

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

5 13D/G filings on this issuer

4 other filings besides this one

Filer Track Record

1 filings by this filer

0 other filings in the data moat

Short Interest · settle 2026-06-30

DTC 2.50

29,615 shares short · -17.6% vs prior

Other 13D/G Filings on ZeroStack Corp.

Filed	Form	Filer	Stake	Shares
2026-07-21	SCHEDULE 13D/A	Reis-Faria Daniel	—	6,925,951	view →
2026-07-21	SCHEDULE 13D/A	Vaiman Dany	—	513,249	view →
2025-07-21	SCHEDULE	Starke Clifford	17.10%	3,850,886	view →
2025-07-21	SCHEDULE	Vaiman Dany	4.80%	1,078,011	view →

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