Arq (ARQ)
Makes activated-carbon products for water, air, soil, and emissions control.
$2.23
After hours+0.15 (+7.19%)
At close$2.08(+2.97%)
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13F · 13D/G · Form 4
| Insiders | 20.27% | 8.85M shares | |
|---|---|---|---|
| 14 holders · as of Sep 10, 2026 | |||
| Other | 79.73% | 34.82M shares | |
| remainder | |||
43.67M company shares as of Sep 22, 2026 · holders as of their latest filing
13F
No 13F holders on record.
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Daniel Kaufman | 5.12% | 2.19M | 13G | Mar 12, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Sep 8, 2026 | Shimon Steinmetzofficer: Chief Financial Officer | Purchase · 2 lots | 2,972 | $2.34 | 368,023 |
| Sep 4, 2026 | Shimon Steinmetzofficer: Chief Financial Officer | Purchase · 2 lots | 5,758 | $2.28 | 365,051 |
| Sep 3, 2026 | Shimon Steinmetzofficer: Chief Financial Officer | Purchase · 2 lots | 16,270 | $2.22 | 359,293 |
| May 4, 2026 | Jay Loring Voncannonofficer: Chief Financial Officer | Sale | 16,709 | $2.27 | 48,291 |
| Mar 23, 2026 | Richard Campbell-Breedendirector | Purchase | 150,000 | $2.21 | 404,786 |
| Mar 17, 2026 | Joseph M. Wongofficer: Chief Technology Officer | Purchase | 10,000 | $1.89 | 400,686 |
| Mar 13, 2026 | Carol S. Eicherdirector | Purchase | 77,500 | $1.95 | 174,010 |
| Mar 12, 2026 | Claiborne Benson Smithofficer: Gen Counsel, Corp Secretary | Purchase | 1,000 | $1.92 | 101,491 |
| Mar 16, 2026 | Claiborne Benson Smithofficer: Gen Counsel, Corp Secretary | Purchase | 1,000 | $1.92 | 102,491 |
| Nov 11, 2025 | Richard Campbell-Breedendirector | Purchase | 28,638 | $3.54 | 254,786 |
House and Senate disclosures
Not reported.