ALT5 Sigma Corp - ALTS
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Mar 26, 2026 | SCHEDULE 13G/A | The Vanguard Group | 0.0% | 0 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | CRCM LP | 8.7% | 10,941,280 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | CRCM LLC | 8.7% | 10,941,280 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | CRCM INSTITUTIONAL MASTER FUND (BVI), LTD. | 5.4% | 6,770,000 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | CRCM B SPV, LP | 2.9% | 3,720,847 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | CRCM Fintech Fund, LP | 0.3% | 333,153 | View |
| Feb 12, 2026 | SCHEDULE 13G/A | Ding Chun R | 8.7% | 10,941,280 | View |
| Feb 02, 2026 | SCHEDULE 13G/A | JANE STREET GROUP, LLC | 2.8% | 3,051,697 | View |
| Feb 02, 2026 | SCHEDULE 13G/A | Jane Street Capital, LLC | 0.8% | 880,187 | View |
| Feb 02, 2026 | SCHEDULE 13G/A | Jane Street Options, LLC | 0.7% | 710,296 | View |
| Feb 02, 2026 | SCHEDULE 13G/A | Jane Street Global Trading, LLC | 1.3% | 1,461,214 | View |
| Jan 27, 2026 | SCHEDULE 13G/A | Soul Ventures Holdings Ltd | 0.0% | 0 | View |
| Nov 13, 2025 | SCHEDULE 13G/A | JANE STREET GROUP, LLC | 5.8% | 6,373,317 | View |
| Nov 13, 2025 | SCHEDULE 13G/A | Jane Street Capital, LLC | 0.4% | 484,389 | View |
| Nov 13, 2025 | SCHEDULE 13G/A | Jane Street Options, LLC | 0.7% | 714,565 | View |
| Nov 13, 2025 | SCHEDULE 13G/A | Jane Street Global Trading, LLC | 4.7% | 5,174,363 | View |
| Oct 30, 2025 | SCHEDULE 13G | The Vanguard Group | 5.58% | 6,126,395 | View |
| Oct 27, 2025 | SCHEDULE 13G | CRCM LP | 8.2% | 8,970,883 | View |
| Oct 27, 2025 | SCHEDULE 13G | CRCM LLC | 8.2% | 8,970,883 | View |
| Oct 27, 2025 | SCHEDULE 13G | CRCM INSTITUTIONAL MASTER FUND (BVI), LTD. | 4.4% | 4,800,000 | View |
| Oct 27, 2025 | SCHEDULE 13G | CRCM B SPV, LP | 3.4% | 3,731,947 | View |
| Oct 27, 2025 | SCHEDULE 13G | CRCM Fintech Fund, LP | 0.3% | 331,153 | View |
| Oct 27, 2025 | SCHEDULE 13G | DING CHUN R | 8.2% | 8,970,883 | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.