STOCK TITAN

[SCHEDULE 13G/A] Arq, Inc. Amended Passive Investment Disclosure

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
SCHEDULE 13G/A

Rhea-AI Filing Summary

ARQ, Inc. received an updated ownership report on its common stock through Amendment No. 2 to a Schedule 13G/A. Investment manager Orin Hirschman and affiliated entities, including AIGH Capital Management LLC and AIGH Investment Partners LLC, report beneficial ownership of 2,470,950 shares.

This position represents 5.8% of ARQ’s outstanding common stock. The reporting person has sole voting and dispositive power over these shares and no shared power. The filing states the securities were acquired and are held in the ordinary course of business, not for the purpose of changing or influencing control of ARQ, Inc.

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Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)






SCHEDULE 13G





SCHEDULE 13G





SCHEDULE 13G



Orin Hirschman
Signature:/s/ Orin Hirschman
Name/Title:Orin Hirschman
Date:01/28/2026
AIGH Capital Management LLC
Signature:/s/ Orin Hirschman
Name/Title:Orin Hirschman, Managing Member
Date:01/28/2026