ZeroStack Corp.
ZSTK- Exchange
- Nasdaq
- Industry
- Finance Services
- SEC CIK
- 0001790169
In the last 90 days, ZeroStack Corp. insiders filed 1 open-market purchase and 1 sale; 11 institutions reported holding it in 13F filings for Q2 2026, worth $183.8K in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in ZeroStack Corp. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 12
- −14 vs. Q2 2025
- Shares held
- 6.71K
- −565.1K (−98.8%) vs. Q2 2025
- Total value
- $109.3K
- −$221.2K (−66.9%) vs. Q2 2025
- New holders
- 2
- 1 more added
- Sold out
- 16
- 9 more reduced
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ZSTK on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 11 | $183.8K |
| Q1 2026 | 10 | $397.3K |
| Q4 2025 | 8 | $8.00K |
| Q3 2025 | 12 | $109.3K |
| Q2 2025 | 26 | $330.5K |
| Q1 2025 | 24 | $333.9K |
| Q4 2024 | 23 | $566.6K |
| Q3 2024 | 21 | $623.9K |
| Q2 2024 | 20 | $400.2K |
| Q1 2024 | 22 | $751.8K |
| Q4 2023 | 22 | $1.52M |
| Q3 2023 | 23 | $2.01M |
| Q2 2023 | 20 | $1.16M |
| Q1 2023 | 32 | $1.57M |
| Q4 2022 | 39 | $4.00M |
| Q3 2022 | 32 | $3.10M |
| Q2 2022 | 39 | $2.65M |
| Q1 2022 | 28 | $3.64M |
| Q4 2021 | 35 | $7.60M |
| Q3 2021 | 25 | $6.47M |
| Q2 2021 | 10 | $317.0K |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding ZeroStack Corp.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| UBS Group AG | 5,576 | $96.3K | 0.00% | −4,197−42.9% | Reduced |
| Morgan Stanley | 301 | $5.20K | 0.00% | −11,475−97.4% | Reduced |
| Tower Research Capital LLC (TRC) | 268 | $4.63K | 0.00% | +268 | New |
| Citigroup Inc | 140 | $2.42K | 0.00% | +140 | New |
| Advisor Group Holdings, Inc. | 394 | $386 | 0.00% | +8+2.1% | Added |
| Bernard Wealth Management Corp. | 12 | $208 | 0.00% | −488−97.6% | Reduced |
| Bank of America Corp | 5 | $86 | 0.00% | −215−97.7% | Reduced |
| Key Financial Inc | 1 | $18 | 0.00% | −74−98.7% | Reduced |
| Wells Fargo & Company | 1 | $17 | 0.00% | −85−98.8% | Reduced |
| Creekmur Asset Management LLC | 1 | $17 | 0.00% | −38−97.4% | Reduced |
| BlackRock, Inc. | 1 | $13 | 0.00% | −29−96.7% | Reduced |
| Royal Bank of Canada | 12 | $0 | 0.00% | −5,737−99.8% | Reduced |
| Geode Capital Management, LLC | 0 | $0 | 0.00% | −168,572−100.0% | Sold out |
| Vanguard Group Inc | 0 | $0 | 0.00% | −88,780−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −79,613−100.0% | Sold out |
| AdvisorShares Investments LLC | 0 | $0 | 0.00% | −70,960−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −40,287−100.0% | Sold out |
| State Street Corp | 0 | $0 | 0.00% | −36,600−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −17,802−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −18,803−100.0% | Sold out |
| Northern Trust Corp | 0 | $0 | 0.00% | −16,415−100.0% | Sold out |
| TD Waterhouse Canada Inc. | 0 | $0 | 0.00% | −4,782−100.0% | Sold out |
| Sound Income Strategies, LLC | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Farther Finance Advisors, LLC | 0 | $0 | 0.00% | −55−100.0% | Sold out |
| IFP Advisors, Inc | 0 | $0 | 0.00% | −20−100.0% | Sold out |
| SBI Securities Co., Ltd. | 0 | $0 | 0.00% | −11−100.0% | Sold out |
| Global Retirement Partners, LLC | 0 | $0 | 0.00% | −3−100.0% | Sold out |
| Danske Bank A/S | 0 | $0 | 0.00% | −1−100.0% | Sold out |