Latest Period
Q1 2026
Security Snapshot
ZeroStack Corp. - Common Shares, no par value (ZSTK) Institutional Ownership
CUSIP: 98956L101
13F Institutional Holders and Ownership History from Q1 2026 to Q2 2026
Institutions Reporting
9
Shares (Excl. Options)
64,285
Price
$6.18
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- Security type / class
- Equity / Common Shares, no par value
- Symbol
- ZSTK on Nasdaq
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 64,285
- Total 13F value
- $397,282
- Portfolio coverage rank
- 0%
- Share change
- +26,197
- Value change
- +$161,898
- Number of holders
- 9
- Shares outstanding
- 18,476,103
- SEC-reported price per share
- $2.18
Latest holder snapshot
5 signals
Issuer context
Names, identifiers, and filing context for this profile.
2 identity fields
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Key facts
- ZSTK - ZeroStack Corp. - Common Shares, no par value is tracked under CUSIP 98956L101.
- 9 institutions reported positions in Q1 2026.
- 1 significant owner is listed from Schedule 13D/13G reporting.
Change
- Holder count moved from 9 to 1 between Q1 2026 and Q2 2026.
- SEC-reported value moved from $397,282 to $3.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC evidence
Latest holder context comes from 9 institutions filings for Q1 2026.
Security key
98956L101
Latest holder period
Q1 2026
13F holders
9
13D/G owners
1
CIK / CUSIP context first
Open Q1 2026 holders
ZSTK full holder history
ZeroStack Corp. SEC filings
ZeroStack Corp. company facts
ZeroStack Corp. insider transactions
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 98956L101:
13D/G owners
Significant owners
Large-stake holder rows connected to Schedule 13D/G evidence.
Rows
1
Security
ZSTK
| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Heinrich Michael | 30% | $25,945,991 | 5,579,783 | Heinrich Michael | 20 Jul 2026 |
As of 31 Mar 2026, 9 institutional investors reported holding 64,285 shares of ZeroStack Corp. - Common Shares, no par value (ZSTK). This represents 0.35% of the company’s total 18,476,103 outstanding shares.
Quarter history
Institutional holders across reporting periods
Holder count, reported shares/value, and median price by quarter.
Periods
2
Latest
Q1 2026
Rows shown
1-2 of 2