Classover Holdings, Inc. - KIDZ
Detailed investor-level table based on 13F positions.
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | History | Added to | 87,463 | 269 | 0.0% | 0.0% | 1 | +44,037 | 101.41% | Q1 2026 | May 13, 2026 |
| VANGUARD GROUP INC | History | No change | 198,581 | 35 | 0.0% | 0.0% | 2 | 0 | 0.0% | Q4 2025 | Jan 29, 2026 |
| Sandia Investment Management LP | History | No change | 90,000 | 16 | 0.04% | 0.04% | 3 | 0 | 0.0% | Q4 2025 | Feb 17, 2026 |
| Harraden Circle Investments, LLC | History | Reduced | 4,832 | 14 | 0.0% | 0.01% | 4 | -236,789 | -98.0% | Q1 2026 | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | New | 2,685 | 8 | 0.0% | — | 5 | +2,685 | New | Q1 2026 | May 15, 2026 |
| UBS Group AG | History | Reduced | 2,136 | 6 | 0.0% | 0.0% | 6 | -7,570 | -77.99% | Q1 2026 | May 05, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | New | 1,288 | 3 | 0.0% | — | 7 | +1,288 | New | Q1 2026 | May 08, 2026 |
| CITADEL ADVISORS LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -546,969 | -100.0% | Q1 2026 | May 15, 2026 |
| Polar Asset Management Partners Inc. | History | Closed out | 0 | 0 | — | — | — | -237,500 | -100.0% | Q1 2026 | May 15, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -122,351 | -100.0% | Q1 2026 | May 15, 2026 |
| Limestone Investment Advisors LP | History | Closed out | 0 | 0 | — | 0.0% | — | -97,500 | -100.0% | Q1 2026 | May 15, 2026 |
| PERISCOPE CAPITAL INC. | History | Closed out | 0 | 0 | — | 0.0% | — | -90,000 | -100.0% | Q1 2026 | May 13, 2026 |
| JANE STREET GROUP, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -50,042 | -100.0% | Q1 2026 | May 12, 2026 |
| STATE STREET CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -43,300 | -100.0% | Q1 2026 | May 15, 2026 |
| Virtu Financial LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -38,143 | -100.0% | Q1 2026 | May 14, 2026 |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -26,701 | -100.0% | Q1 2026 | May 15, 2026 |
| TWO SIGMA SECURITIES, LLC | History | Closed out | 0 | 0 | — | 0.0% | — | -23,481 | -100.0% | Q1 2026 | May 15, 2026 |
| HRT FINANCIAL LP | History | Closed out | 0 | 0 | — | 0.0% | — | -20,357 | -100.0% | Q1 2026 | May 14, 2026 |
| XTX Topco Ltd | History | Closed out | 0 | 0 | — | 0.0% | — | -19,053 | -100.0% | Q1 2026 | May 15, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | History | Closed out | 0 | 0 | — | 0.0% | — | -13,433 | -100.0% | Q1 2026 | May 15, 2026 |
| NORTHERN TRUST CORP | History | Closed out | 0 | 0 | — | 0.0% | — | -11,113 | -100.0% | Q1 2026 | May 14, 2026 |
| Tower Research Capital LLC (TRC) | History | Closed out | 0 | 0 | — | — | — | -5,188 | -100.0% | Q1 2026 | May 15, 2026 |
| GROUP ONE TRADING LLC | History | Reduced | 283 | 0 | — | — | — | -1,924 | -87.18% | Q1 2026 | May 13, 2026 |
| WOLVERINE ASSET MANAGEMENT LLC | History | Reduced | 9 | 0 | — | — | — | -481 | -98.16% | Q1 2026 | May 04, 2026 |
| BANK OF AMERICA CORP /DE/ | History | Closed out | 0 | 0 | — | — | — | -142 | -100.0% | Q1 2026 | May 15, 2026 |
| SIMPLEX TRADING, LLC | History | Closed out | 0 | 0 | — | — | — | -71 | -100.0% | Q1 2026 | May 14, 2026 |
| Caitong International Asset Management Co., Ltd | History | Closed out | 0 | 0 | — | — | — | -2 | -100.0% | Q1 2026 | May 11, 2026 |