← All Arq, INC filings

Arq, INC Schedule 13G passive stakes

Filed when an investor crosses five percent without intending to seek control — the passive counterpart to a 13D.

NASDAQ
ARQ
Arq, INC
SCHEDULE: Arq, Inc. Schedule 13G Filing
AIGH Capital Management LLC, AIGH Investment Partners L.L.C., and Orin Hirschman report 0% beneficial ownership of Arq, Inc. common stock as of March 31, 2026.
NASDAQ
ARQ
Arq, INC
SCHEDULE: Daniel Kaufman Discloses 5.12% Stake in Arq
Individual investor Daniel Kaufman has reported a 5.12% beneficial ownership stake in Arq's common stock.
NASDAQ
ARQ
Arq, INC
SCHEDULE: AIGH Capital Management, Orin Hirschman Disclose 5.8% Stake in ARQ Inc.
AIGH Capital Management LLC and Orin Hirschman have jointly disclosed a beneficial ownership of 5.8% in ARQ, Inc.'s common stock.
NASDAQ
ARQ
Arq, INC
SCHEDULE 13G/A: Investment Group Led by Orin Hirschman Discloses 7.2% Stake in ARQ, Inc.
AIGH Capital Management LLC and Orin Hirschman have disclosed a combined beneficial ownership of 7.2% in ARQ, Inc.'s common stock as of December 31, 2024.