Hack VC Management, LLC → ZeroStack Corp. ZSTK

Stake: — Shares: — Class: Common Stock, $0.0001 par value per share

Composite Decision Signal · PASS (LOW BASE-RATE EDGE) Conviction Score: 6/100

Passive Schedule 13G filer baseline

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)

1 transaction

0 buys · 1 sales · 0 awards/exercises

Issuer Cluster

8 13D/G filings on this issuer

7 other filings besides this one

Filer Track Record

1 filings by this filer

0 other filings in the data moat

Short Interest · settle 2026-09-30

DTC 1.00

97,098 shares short · -22.0% vs prior

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
2026-08-19	Rong Rudy	officer	Sale	1,000	$7.57	$8K

Other 13D/G Filings on ZeroStack Corp.

Filed	Form	Filer	Stake	Shares
2026-09-04	SCHEDULE 13G	BLOCKCAT PTE. LTD.	—	—	view →
2026-09-02	SCHEDULE 13G	Puple AI Inc.	—	—	view →
2026-07-21	SCHEDULE 13D/A	Vaiman Dany	—	513,249	view →
2026-07-21	SCHEDULE 13D/A	Heinrich Michael	—	5,579,783	view →
2026-07-21	SCHEDULE 13D/A	Reis-Faria Daniel	—	6,925,951	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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