Security key
98956L101
ZeroStack Corp. - Common Shares, no par value (ZSTK)
CUSIP: 98956L101
Q2 2026 13F Holders as of 30 Jun 2026
- Security type / class
- Equity / Common Shares, no par value
- Total 13F shares
- 1
- Total 13F value
- $3
- Share change
- -12
- SEC-reported price per share
- $3.00
- Number of holders
- 1
- Value change
- -$72
- Number of sells
- 1
- Shares outstanding
- 18,476,103
Holder snapshot
5 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q2 2026
Institutions
1
Top holders
1
ZSTK full security history
Ownership snapshot
Full 13F holder table
Previous quarter: Q1 2026
ZeroStack Corp. SEC filings
ZeroStack Corp. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 98956L101
Recent filing periods:
Ownership snapshot
Top reported holders of ZSTK - ZeroStack Corp. - Common Shares, no par value (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
Clifford Starke
Comparable rows
15/15
Latest evidence
31 Mar 2026
13D/G
3/4/5
13F
Lead comparable stake: 88%
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 88%.
15 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
88%
Dany Vaiman
24%
Clifford Starke
17%
Michael Heinrich
10%
HIGHBRIDGE CAPITAL MANAGEMENT LLC
4.4%
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 |
13D/G
Reis-Faria Daniel
|
88%
|
—
6,425,951 shares
|
$0 | 19 Dec 2025 |
| Dany Vaiman |
13D/G
Vaiman Dany
|
24%
|
—
263,249 shares
|
$0 | 19 Dec 2025 |
| Clifford Starke |
3/4/5
13D/G
CEO, Director · Starke Clifford
|
17%
from 13D/G
|
$2,134,557
2,822,221 shares
mixed-class rows
|
— | 30 Jun 2025 |
| Michael Heinrich |
13D/G
Heinrich Michael
|
10%
|
—
471,208 shares
|
$0 | 31 Mar 2026 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC |
13D/G
|
4.4%
|
$726,768
1,038,240 shares
|
$0 | 30 Jun 2025 |
| Empery Asset Management, LP |
13D/G
|
1.9%
|
$224,439
374,065 shares
|
-$331,378 | 31 Mar 2025 |
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 Q2 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
1
Shares
1
Rows available
1
| 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 Q2 2026 vs Q1 2026 Across Filers
Q1 2026 holders
9
Q2 2026 holders
1
Holder diff
-8
| Investor | Q1 2026 Shares | Q2 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q2 2026 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend