Arq, Inc. (ARQ) ownership: Top institutional holder: AIGH Capital Management LLC ($7.43M). Insider activity: Net Seller (9 buys, 11 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| AIGH Capital Management LLC | 2273092.00 | $7.43M | 2025-12-31 |
| VANGUARD GROUP INC | 1830017.00 | $5.98M | 2025-12-31 |
| BlackRock, Inc. | 2097522.00 | $5.37M | 2026-03-31 |
| ROYCE & ASSOCIATES LP | 1748444.00 | $4.48M | 2026-03-31 |
| VANGUARD CAPITAL MANAGEMENT LLC | 1431450.00 | $3.66M | 2026-03-31 |
| AQR CAPITAL MANAGEMENT LLC | 1085710.00 | $2.78M | 2026-03-31 |
| Alta Fundamental Advisers LLC | 781088.00 | $2.55M | 2025-12-31 |
| MARSHALL WACE, LLP | 809705.00 | $2.07M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-05-04 | |
| Sell | null | 2026-05-04 | |
| Buy | null | 2026-03-23 | |
| Buy | null | 2026-03-23 | |
| Sell | null | 2026-03-23 | |
| Sell | null | 2026-03-23 | |
| Sell | null | 2026-03-23 | |
| Buy | null | 2026-03-23 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.