ALT5 Sigma Corp - ALTS

Ownership (Schedule 13D / 13G) · latest 50 filings · Back to all files
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Filed Form Reporting person Percent Shares SEC
May 13, 2026 SCHEDULE 13G/A CRCM LP 9.9% 12,611,530 View
May 13, 2026 SCHEDULE 13G/A CRCM LLC 9.9% 12,611,530 View
May 13, 2026 SCHEDULE 13G/A CRCM INSTITUTIONAL MASTER FUND (BVI), LTD. 6.3% 8,080,000 View
May 13, 2026 SCHEDULE 13G/A CRCM B SPV, LP 2.9% 3,720,847 View
May 13, 2026 SCHEDULE 13G/A CRCM Fintech Fund, LP 0.5% 693,403 View
May 13, 2026 SCHEDULE 13G/A Ding Chun R 9.9% 12,611,530 View
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
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.