ZeroStack Corp. - ZSTK
Detailed investor-level table based on 13F positions.
Early Q1 2026 data: only 1 institutional holders reported so far. The full shareholder list will grow as more funds file with the SEC.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UBS Group AG | History | Reduced | 5,576 | 96 | 0.0% | 0.0% | 1 | -4,197 | -42.94% | Q3 2025 | Nov 13, 2025 |
| MORGAN STANLEY | History | Reduced | 301 | 5 | 0.0% | 0.0% | 2 | -11,475 | -97.44% | Q3 2025 | Nov 14, 2025 |
| Tower Research Capital LLC (TRC) | History | New | 268 | 4 | 0.0% | — | 3 | +268 | New | Q3 2025 | Nov 14, 2025 |
| CITIGROUP INC | History | New | 140 | 2 | 0.0% | — | 4 | +140 | New | Q3 2025 | Nov 10, 2025 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -168,572 | -100.0% | Q2 2025 | Aug 08, 2025 |
| VANGUARD GROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -88,780 | -100.0% | Q2 2025 | Aug 11, 2025 |
| RENAISSANCE TECHNOLOGIES LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -79,613 | -100.0% | Q2 2025 | Aug 13, 2025 |
| AdvisorShares Investments LLC | History | Closed out | 0 | 0 | — | 0.01% | — | -70,960 | -100.0% | Q2 2025 | Aug 04, 2025 |
| XTX Topco Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -40,287 | -100.0% | Q2 2025 | Aug 12, 2025 |
| STATE STREET CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -36,600 | -100.0% | Q2 2025 | Aug 14, 2025 |
| HRT FINANCIAL LP | History | Closed out | 0 | 0 | — | 0.0% | — | -18,803 | -100.0% | Q2 2025 | Aug 14, 2025 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -17,802 | -100.0% | Q2 2025 | Aug 14, 2025 |
| NORTHERN TRUST CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -16,415 | -100.0% | Q2 2025 | Aug 13, 2025 |
| ROYAL BANK OF CANADA | History | Closed out | 0 | 0 | — | 0.0% | — | -5,749 | -100.0% | Q2 2025 | Nov 21, 2025 |
| TD Waterhouse Canada Inc. | History | Closed out | 0 | 0 | — | 0.0% | — | -4,782 | -100.0% | Q2 2025 | Aug 11, 2025 |
| Sound Income Strategies, LLC | History | Closed out | 0 | 0 | — | — | — | -500 | -100.0% | Q2 2025 | Jul 17, 2025 |
| Bernard Wealth Management Corp. | History | Reduced | 12 | 0 | — | — | — | -488 | -97.6% | Q3 2025 | Oct 14, 2025 |
| BANK OF AMERICA CORP /DE/ | History | Reduced | 5 | 0 | — | — | — | -215 | -97.73% | Q3 2025 | Feb 03, 2026 |
| WELLS FARGO & COMPANY/MN | History | Reduced | 1 | 0 | — | — | — | -85 | -98.84% | Q3 2025 | Nov 13, 2025 |
| Key FInancial Inc | History | Reduced | 1 | 0 | — | — | — | -74 | -98.67% | Q3 2025 | Nov 05, 2025 |
| Farther Finance Advisors, LLC | History | Closed out | 0 | 0 | — | — | — | -55 | -100.0% | Q2 2025 | Jul 11, 2025 |
| BlackRock, Inc. | History | Reduced | 1 | 0 | — | — | — | -29 | -96.67% | Q3 2025 | Nov 12, 2025 |
| IFP Advisors, Inc | History | Closed out | 0 | 0 | — | — | — | -20 | -100.0% | Q2 2025 | Jul 24, 2025 |
| SBI Securities Co., Ltd. | History | Closed out | 0 | 0 | — | — | — | -11 | -100.0% | Q2 2025 | Aug 08, 2025 |
| OSAIC HOLDINGS, INC. | History | Added to | 394 | 0 | — | — | — | +8 | 2.07% | Q3 2025 | Nov 14, 2025 |
| Global Retirement Partners, LLC | History | Closed out | 0 | 0 | — | — | — | -3 | -100.0% | Q2 2025 | Aug 12, 2025 |
| DANSKE BANK A/S | History | Closed out | 0 | 0 | — | — | — | -1 | -100.0% | Q2 2025 | Dec 18, 2025 |