How many institutions held ZSTK - ZeroStack Corp. - Common Stock, $0.0001 par value per share in Q3 2026?

3 institutional investors reported ZSTK - ZeroStack Corp. - Common Stock, $0.0001 par value per share for Q3 2026. Use the holders table for investor-level position and value details.

ZeroStack Corp. - Common Stock, $0.0001 par value per share (ZSTK)

Q: What does CUSIP 98957E106 represent in this 13F holders report?

CUSIP 98957E106 is the security identifier for ZSTK - ZeroStack Corp. - Common Stock, $0.0001 par value per share used to aggregate holder disclosures.

CUSIP: 98957E106

Q3 2026 13F Holders as of 30 Sep 2026

Security type / class: Equity / Common Stock, $0.0001 par value per share
Total 13F shares: 49,410
Total 13F value: $237,665
Share change: +49,410
SEC-reported price per share: $4.81
Number of holders: 3
Value change: +$237,665
Number of buys: 3
Shares outstanding: 22,329,767

Security key

98957E106

Report period

Q3 2026

Institutions

Top holders

ZSTK full security history Ownership snapshot Full 13F holder table ZeroStack Corp. SEC filings ZeroStack Corp. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 98957E106

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of ZSTK - ZeroStack Corp. - Common Stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Daniel Reis-Faria

Disclosed value leader

Daniel Reis-Faria

Comparable rows

9/15

Latest evidence

19 Aug 2026

3/4/5 13D/G Lead comparable stake: 38% 6 rows are not safely comparable across share classes. 13D/G row: Daniel Reis-Faria Showing 1-6 of 15 holder rows.

Quick read

Daniel Reis-Faria leads the comparable SEC ownership view at 38%.

9 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Daniel Reis-Faria's linked filing trail.

Comparable ownership Top 5

Daniel Reis-Faria 38%

Michael Heinrich 30%

Clifford Starke 17%

Hack VC Management, LLC 8.6%

BLOCKCAT PTE. LTD. 8.3%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Daniel Reis-Faria	3/4/5 13D/G CEO, Director · Reis-Faria Daniel 3/4/5 13D/G	38% Reported 13D/G · 20 Jul 2026	$186,799,691 6,454,743 shares mixed-class rows	—	20 Jul 2026
Michael Heinrich	3/4/5 13D/G Executive Chairman, Director · Heinrich Michael 3/4/5 13D/G	30% Reported 13D/G · 20 Jul 2026	$28,480,993 5,579,783 shares mixed-class rows	—	20 Jul 2026
Clifford Starke	3/4/5 13D/G CEO, Director · Starke Clifford 3/4/5 13D/G	17% Reported 13D/G · 09 May 2025	$2,134,557 2,822,221 shares mixed-class rows	—	30 Jun 2025
Hack VC Management, LLC	13D/G Alexander Pack 13D/G	8.6% Reported 13D/G · 20 Jul 2026	$9,294,542 1,920,360 shares	$0	20 Jul 2026
BLOCKCAT PTE. LTD.	13D/G 13D/G	8.3% Reported 13D/G · 19 Aug 2026	$3,185,000 1,750,000 shares	$0	19 Aug 2026
Puple AI Inc.	13D/G 13D/G	8.3% Reported 13D/G · 19 Aug 2026	$3,185,000 1,750,000 shares	$0	19 Aug 2026

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

49,410

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2026 vs Q2 2026 Across Filers

Q2 2026 holders

Q3 2026 holders

Holder diff

Investor	Q2 2026 Shares	Q3 2026 Shares	Share Diff	Share Chg %	Q2 2026 value	Q3 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend