Arq
Makes activated-carbon products for water, air, soil, and emissions control.
$2.14
After-hours close−0.01 (−0.70%)
At close$2.16(−2.05%)
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Breakdown13F · Form 4
Institutions —Insiders 15.08%
Shares outstanding 42.93M · Float 31.77M · 74.0% free float
Institutions13F
No 13F holders on record.
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Daniel Kaufman | 5.12% | 2.19M | 13G | Mar 12, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Julian Alexander McIntyre | director | 3.30M | 7.69% | Jul 6, 2026 |
| Robert E. Rasmus | director, officer: Chief Executive Officer | 550.7K | 1.28% | Mar 25, 2026 |
| Richard Campbell-Breeden | director | 540.9K | 1.26% | Jul 6, 2026 |
| Joseph M. Wong | officer: Chief Technology Officer | 506.6K | 1.18% | Aug 18, 2026 |
| Jeremy Blank | director | 503.0K | 1.17% | Jul 6, 2026 |
| Shimon Steinmetz | officer: Chief Financial Officer | 343.0K | 0.80% | Aug 4, 2026 |
| Carol S. Eicher | director | 198.7K | 0.46% | Jul 6, 2026 |
| Jeremy Williamson | officer: Chief Operating Officer | 185.6K | 0.43% | Mar 3, 2026 |
| Claiborne Benson Smith | officer: Gen Counsel, Corp Secretary | 155.5K | 0.36% | Aug 4, 2026 |
| Laurie Bergman | director | 76.3K | 0.18% | Jul 6, 2026 |
2 people have not refiled in the last 18 months (2.13M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| 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 |
| Nov 10, 2025 | Jay Loring Voncannonofficer: Chief Financial Officer | Purchase | 9,000 | $3.74 | 59,000 |
| Nov 11, 2025 | Jay Loring Voncannonofficer: Chief Financial Officer | Purchase | 6,000 | $3.55 | 65,000 |
| Nov 10, 2025 | Robert E. Rasmusdirector, officer: Chief Executive Officer | Purchase | 50,000 | $3.79 | 70,718 |
CongressHouse and Senate disclosures
Not reported.