Arq, Inc. - ARQ

Ownership (Schedule 13D / 13G) · latest 50 filings · Back to all files
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Filed Form Reporting person Percent Shares SEC
Mar 12, 2026 SCHEDULE 13G Daniel Kaufman 5.12% 2,191,278 View
Jan 28, 2026 SCHEDULE 13G/A Orin Hirschman 5.8% 2,470,950 View
Jan 28, 2026 SCHEDULE 13G/A AIGH Capital Management LLC 5.3% 2,273,092 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.