Company · CIK 0001515156 · SIC 2890 — Miscellaneous Chemical Products · Nasdaq
Arq, Inc. · ARQ
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 8, 2026 PForm 4 → | Sep 10, 5:33 pm EDT | Shimon SteinmetzChief Financial Officer | 2,972 | $2.34 | $6,953 | 15,000 | +24.7% | |
| Sep 4, 2026 PForm 4 → | Sep 9, 5:32 pm EDT | Shimon SteinmetzChief Financial Officer | 5,758 | $2.28 | $13,113 | 13,126 | +78.1% | |
| Sep 3, 2026 PForm 4 → | Sep 8, 5:32 pm EDT | Shimon SteinmetzChief Financial Officer | 16,270 | $2.22 | $36,148 | 8,770 | — | |
| Sep 1, 2026 AForm 4 → | Sep 3, 5:32 pm EDT | Peter Oluoch OwinoChief Accounting Officer | 161,047 | — | — | 161,047 | — | |
| Aug 14, 2026 AForm 4 → | Aug 18, 5:10 pm EDT | Joseph M WongChief Technology Officer | 55,000 | — | — | 506,648 | — | |
| Aug 1, 2026 AForm 4 → | Aug 4, 8:30 pm EDT | Claiborne Benson SmithGen Counsel, Corp Secretary | 61,047 | — | — | 155,513 | — | |
| Aug 1, 2026 AForm 4 → | Aug 4, 8:29 pm EDT | Joseph M WongChief Technology Officer | 61,047 | — | — | 451,648 | — | |
| Jul 31, 2026 AForm 4 → | Aug 4, 8:31 pm EDT | Shimon SteinmetzChief Financial Officer | 343,023 | — | — | 343,023 | — | |
| Jul 1, 2026 AForm 4 → | Jul 6, 5:32 pm EDT | Carol S EicherDirector | 24,641 | — | — | 198,651 | — | |
| Jul 1, 2026 AForm 4 → | Jul 6, 5:32 pm EDT | Jeremy BlankDirector | 49,283 | — | — | 128,045 | — | |
| Jul 1, 2026 AForm 4 → | Jul 6, 5:32 pm EDT | Laurie BergmanDirector | 24,641 | — | — | 76,343 | — | |
| Jul 1, 2026 AForm 4 → | Jul 6, 5:32 pm EDT | Julian Alexander McIntyreDirector | 49,283 | — | — | 108,261 | — | |
| Jul 1, 2026 AForm 4 → | Jul 6, 5:32 pm EDT | Richard Campbell-BreedenDirector | 49,283 | — | — | 136,151 | — | |
| Jan 2, 2019 FForm 4 → | Jan 4, 5:45 pm EST | L Heath SampsonPresident & CEO, Director | 7,557 | $10.70 | $80,860 | 257,222 | — | plan? |
| Dec 31, 2018 PForm 4 → | Jan 3, 2019, 6:47 pm EST | Alta Fundamental Advisers LLC +1Director | 55,000 | $10.34 | $568,794 | 1,371,379 | +4.18% | plan? |
| Dec 31, 2018 SForm 4 → | Jan 3, 2019, 6:47 pm EST | Alta Fundamental Advisers LLC +1Director | 45,000 | $10.28 | $462,739 | 1,316,379 | −3.31% | plan? |
| Dec 28, 2018 SForm 4 → | Dec 31, 4:48 pm EST | Alta Fundamental Advisers LLC +1Director | 50,000 | $9.94 | $496,980 | 1,306,379 | −3.69% | plan? |
| Dec 27, 2018 PForm 4 → | Dec 31, 4:48 pm EST | Alta Fundamental Advisers LLC +1Director | 65,000 | $9.97 | $647,843 | 1,361,379 | +5.01% | plan? |
| Oct 16, 2018 FForm 4 → | Oct 18, 5:43 pm EDT | L Heath SampsonPresident & CEO, Director | 5,497 | $10.62 | $58,378 | 264,779 | — | plan? |
| Aug 14, 2018 FMForm 4 → | Aug 16, 5:31 pm EDT | L Heath SampsonPresident & CEO, Director | 166,665 | $9.60 | $1,599,943 | 270,276 | — | plan? |
| Jul 1, 2018 AForm 4 → | Jul 3, 5:56 pm EDT | Alta Fundamental Advisers LLC +1Director | 13,014 | — | — | 1,346,379 | — | plan? |
| Jul 1, 2018 AForm 4 → | Jul 3, 5:45 pm EDT | Louis Spencer WellsDirector | 3,904 | — | — | 20,969 | — | plan? |
| Jul 1, 2018 AForm 4 → | Jul 3, 5:40 pm EDT | Taylor J. SimontonDirector | 3,904 | — | — | 21,013 | — | plan? |
| Jul 1, 2018 AForm 4 → | Jul 3, 5:29 pm EDT | R Carter PateDirector | 3,904 | — | — | 14,958 | — | plan? |
| Jun 29, 2018 PForm 4 → | Jul 3, 5:56 pm EDT | Alta Fundamental Advisers LLC +1Director | 27,011 | $11.29 | $304,822 | 1,333,365 | +2.07% | plan? |
| Jun 28, 2018 PForm 4 → | Jul 2, 6:58 pm EDT | Alta Fundamental Advisers LLC +1Director | 20,020 | $11.11 | $222,464 | 1,306,354 | +1.56% | plan? |
| May 24, 2018 SForm 4 → | May 29, 5:13 pm EDT | Ron HansonSVP of Operations of ADA-ES | 1,228 | $11.12 | $13,655 | 33,863 | −3.50% | plan? |
| Mar 23, 2018 AFForm 4 → | Mar 27, 5:34 pm EDT | Theodore James SandersGeneral Counsel | 13,157 | $10.95 | $10,238 | 26,580 | — | plan? |
| Mar 23, 2018 AFForm 4 → | Mar 27, 5:32 pm EDT | Greg MarkenChief Financial Officer | 18,286 | $10.95 | $17,728 | 46,629 | — | plan? |
| Mar 23, 2018 AFForm 4 → | Mar 27, 5:28 pm EDT | Ron HansonSVP of Operations of ADA-ES | 12,925 | $10.95 | $14,991 | 35,091 | — | plan? |
| Mar 23, 2018 AForm 4 → | Mar 27, 5:27 pm EDT | L Heath SampsonPresident & CEO, Director | 55,555 | — | — | 251,609 | — | plan? |
| Mar 23, 2018 AFForm 4 → | Mar 27, 5:22 pm EDT | Sharon SjostromChief Product Officer | 12,521 | $10.95 | $10,567 | 66,506 | — | plan? |
| Mar 1, 2018 FMForm 4 → | Mar 5, 6:32 pm EST | Sharon SjostromChief Product Officer | 5,462 | $9.73 | $13,564 | 55,915 | — | plan? |
| Mar 1, 2018 FMForm 4 → | Mar 5, 6:10 pm EST | L Heath SampsonPresident & CEO, Director | 14,971 | $9.73 | $25,950 | 196,054 | — | plan? |
| Jan 12, 2018 FForm 4 → | Jan 17, 7:16 pm EST | Greg MarkenChief Accounting Officer | 950 | $8.84 | $8,398 | 31,581 | — | plan? |
| Jan 2, 2018 FForm 4 → | Jan 4, 5:49 pm EST | L Heath SampsonPresident & CEO, Director | 9,878 | $9.50 | $93,841 | 186,417 | — | plan? |
| Jan 2, 2018 FForm 4 → | Jan 4, 5:43 pm EST | Sharon SjostromChief Product Officer | 599 | $9.50 | $5,691 | 53,241 | — | plan? |
| Dec 28, 2017 JForm 5 → | Feb 13, 2018, 5:39 pm EST | Ron HansonSVP of Operations of ADA-ES | 664 | $9.43 | $6,262 | 24,904 | — | plan? |
| Dec 28, 2017 JForm 5 → | Feb 13, 2018, 5:35 pm EST | Theodore James SandersGeneral Counsel | 188 | $9.43 | $1,773 | 15,293 | — | plan? |
| Dec 13, 2017 PForm 4 → | Dec 15, 5:52 pm EST | Alta Fundamental Advisers LLC +1Director | 262,266 | $9.89 | $2,593,145 | 1,286,334 | +25.6% | plan? |
| Dec 6, 2017 SForm 4 → | Dec 8, 5:18 pm EST | Alan Bradley GabbardDirector | 10,000 | $8.17 | $81,717 | 34,480 | −22.5% | plan? |
| Oct 16, 2017 FForm 4 → | Oct 18, 6:54 pm EDT | L Heath SampsonPresident & CEO, Director | 3,997 | $11.42 | $45,646 | 196,295 | — | plan? |
| Jul 1, 2017 AForm 4 → | Jul 5, 6:59 pm EDT | R Carter PateDirector | 4,842 | — | — | 11,054 | — | plan? |
| Jul 1, 2017 AForm 4 → | Jul 5, 6:45 pm EDT | Derek JohnsonDirector | 6,456 | — | — | 47,000 | — | plan? |
| Jul 1, 2017 AForm 4 → | Jul 5, 6:42 pm EDT | Taylor J. SimontonDirector | 4,842 | — | — | 17,109 | — | plan? |
| Jul 1, 2017 AForm 4 → | Jul 5, 6:39 pm EDT | Louis Spencer WellsDirector | 4,842 | — | — | 17,065 | — | plan? |
| Jul 1, 2017 AForm 4 → | Jul 5, 6:22 pm EDT | Alan Bradley GabbardDirector | 4,842 | — | — | 44,480 | — | plan? |
| Jun 28, 2017 SForm 4 → | Jun 30, 5:40 pm EDT | Alan Bradley GabbardDirector | 4,700 | $9.21 | $43,266 | 39,638 | −10.6% | plan? |
| Jun 26, 2017 GForm 4 → | Jun 27, 6:55 pm EDT | Alan Bradley GabbardDirector | 1,500 | — | — | 44,338 | — | plan? |
| Jun 23, 2017 SForm 4 → | Jun 27, 6:55 pm EDT | Alan Bradley GabbardDirector | 300 | $9.52 | $2,856 | 45,838 | −0.65% | plan? |
| Jun 12, 2017 DForm 4 → | Jun 14, 7:58 pm EDT | Alta Fundamental Advisers LLCDirector | 70,178 | $9.40 | $659,673 | 1,024,068 | — | plan? |
| Jun 12, 2017 FForm 4 → | Jun 14, 5:16 pm EDT | Greg MarkenChief Accounting Officer | 1,599 | $9.49 | $15,175 | 32,531 | — | plan? |
| Jun 12, 2017 FForm 4 → | Jun 14, 5:11 pm EDT | Ron HansonSVP of Operations of ADA-ES | 1,599 | $9.49 | $15,175 | 25,569 | — | plan? |
| May 10, 2017 DForm 4 → | May 12, 4:32 pm EDT | Sharon SjostromChief Product Officer | 6,396 | — | — | 70,372 | — | plan? |
| Apr 14, 2017 FForm 4 → | Apr 18, 6:50 pm EDT | Greg MarkenChief Accounting Officer | 4,797 | $8.19 | $39,287 | 34,130 | — | plan? |
| Apr 14, 2017 FForm 4 → | Apr 18, 6:48 pm EDT | Theodore James SandersGeneral Counsel | 2,709 | $8.19 | $22,187 | 15,481 | — | plan? |
| Apr 14, 2017 FForm 4 → | Apr 18, 6:45 pm EDT | Ron HansonSVP of Operations of ADA-ES | 4,725 | $8.19 | $38,698 | 27,168 | — | plan? |
| Mar 23, 2017 AForm 4 → | Mar 27, 7:45 pm EDT | L Heath SampsonPresident & CEO, Director | 60,000 | — | — | 200,292 | — | plan? |
| Mar 23, 2017 AForm 4 → | Mar 27, 7:40 pm EDT | Greg MarkenChief Accounting Officer | 12,500 | — | — | 38,927 | — | plan? |
| Mar 23, 2017 AForm 4 → | Mar 27, 7:37 pm EDT | Sharon SjostromChief Product Officer | 10,000 | — | — | 76,768 | — | plan? |
| Mar 23, 2017 AForm 4 → | Mar 27, 7:34 pm EDT | Ron HansonSVP of Operations of ADA-ES | 10,000 | — | — | 31,893 | — | plan? |
| Mar 23, 2017 AForm 4 → | Mar 27, 7:31 pm EDT | Theodore James SandersGeneral Counsel | 10,000 | — | — | 18,190 | — | plan? |
| Feb 28, 2017 FMForm 4 → | Mar 2, 6:37 pm EST | Sharon SjostromChief Product Officer | 2,232 | $10.77 | $6,527 | 66,768 | — | plan? |
| Feb 28, 2017 FMForm 4 → | Mar 2, 6:33 pm EST | L Heath SampsonPresident & CEO, Director | 4,421 | $10.77 | $11,535 | 140,292 | — | plan? |
| Jan 20, 2017 PForm 4 → | Jan 24, 8:21 pm EST | Alta Fundamental Advisers LLC +1Director | 231,271 | $9.00 | $2,081,439 | 1,094,246 | +26.8% | plan? |
| Jan 12, 2017 FForm 4 → | Jan 17, 12:58 pm EST | Greg MarkenChief Accounting Officer | 1,034 | $9.20 | $9,513 | 26,427 | — | plan? |
| Jan 2, 2017 FForm 4 → | Jan 4, 6:22 pm EST | Sharon SjostromChief Product Officer | 957 | $9.24 | $8,843 | 65,748 | — | plan? |
| Jan 2, 2017 FForm 4 → | Jan 4, 6:20 pm EST | Ron HansonSVP of Operations of ADA-ES | 41 | $9.24 | $379 | 21,893 | — | plan? |
| Jan 2, 2017 FForm 4 → | Jan 4, 6:18 pm EST | L Heath SampsonPresident & CEO, Director | 10,305 | $9.24 | $95,218 | 138,013 | — | plan? |
| Oct 16, 2016 AForm 4 → | Oct 18, 6:24 pm EDT | L Heath SampsonPresident & CEO, Director | 50,000 | — | — | 148,318 | — | plan? |
| Aug 9, 2016 FForm 4 → | Aug 11, 6:42 pm EDT | Christine B. AmrheinOther | 1,027 | $7.34 | $7,538 | 25,713 | — | plan? |
| Jul 18, 2016 FForm 4 → | Jul 20, 7:42 pm EDT | Christine B. AmrheinGeneral Counsel | 2 | $6.70 | $13 | 26,740 | — | plan? |
| Jul 1, 2016 AForm 4 → | Jul 6, 6:23 pm EDT | Alta Fundamental Advisers SP LLC +1Director | 6,212 | — | — | 862,975 | — | plan? |
| Jul 1, 2016 AForm 4 → | Jul 6, 5:25 pm EDT | R Carter PateDirector | 6,212 | — | — | 6,212 | — | plan? |
| Jul 1, 2016 AForm 4 → | Jul 6, 5:22 pm EDT | Louis Spencer WellsDirector | 6,212 | — | — | 12,223 | — | plan? |
| Jul 1, 2016 AForm 4 → | Jul 6, 5:19 pm EDT | Taylor SimontonDirector | 6,212 | — | — | 12,267 | — | plan? |
| Jul 1, 2016 AForm 4 → | Jul 6, 5:15 pm EDT | Derek JohnsonDirector | 10,353 | — | — | 40,544 | — | plan? |
| Jul 1, 2016 AForm 4 → | Jul 6, 5:03 pm EDT | Alan Bradley GabbardDirector | 6,212 | — | — | 46,138 | — | plan? |
| May 10, 2016 AForm 4 → | May 12, 6:08 pm EDT | Sharon SjostromChief Product Officer | 20,000 | $7.74 | $154,800 | 66,705 | — | plan? |
| May 10, 2016 AForm 4 → | May 12, 6:03 pm EDT | Christine B. AmrheinGeneral Counsel | 10,000 | $7.74 | $77,400 | 26,742 | — | plan? |
| Mar 1, 2016 MForm 4 → | Mar 3, 7:41 pm EST | Christine B. AmrheinGeneral Counsel | 2,608 | — | — | 16,742 | — | plan? |
| Mar 1, 2016 FMForm 4 → | Mar 3, 7:33 pm EST | Jonathan R LagarenneOther | 6,488 | $5.25 | $8,253 | 27,162 | — | plan? |
| Mar 1, 2016 MForm 4 → | Mar 3, 7:24 pm EST | Sharon SjostromChief Product Officer | 3,231 | — | — | 46,705 | — | plan? |
| Mar 1, 2016 MForm 4 → | Mar 3, 7:14 pm EST | Graham O MattisonVP Investor Relations | 2,119 | — | — | 15,644 | — | plan? |
| Jan 16, 2016 FForm 4 → | Jan 19, 6:38 pm EST | Jonathan R LagarenneOther | 5,137 | $5.79 | $29,743 | 23,818 | — | plan? |
| Jan 4, 2016 AForm 4 → | Jan 6, 6:30 pm EST | L Heath SampsonPresident & CEO, Director | 72,000 | $7.54 | $542,880 | 98,318 | — | plan? |
| Jan 1, 2016 FForm 4 → | Jan 5, 8:03 pm EST | Jonathan R LagarenneExecutive Vice President | 2,248 | $7.07 | $15,893 | 28,955 | — | plan? |
| Jan 1, 2016 FForm 4 → | Jan 5, 6:55 pm EST | Sharon SjostromChief Product Officer | 1,548 | $7.07 | $10,944 | 43,474 | — | plan? |
| Jan 1, 2016 FForm 4 → | Jan 5, 6:49 pm EST | Graham O MattisonVP Investor Relations | 1,115 | $7.07 | $7,883 | 13,525 | — | plan? |
| Jan 1, 2016 FForm 4 → | Jan 5, 6:42 pm EST | Christine B. AmrheinGeneral Counsel | 1,223 | $7.07 | $8,647 | 14,134 | — | plan? |
| Aug 11, 2015 DFForm 4 → | Aug 13, 6:00 pm EDT | Christine B. AmrheinGeneral Counsel | 792 | $10.15 | $670 | 30,994 | — | plan? |
| Jul 18, 2015 FForm 4 → | Jul 21, 7:50 pm EDT | Christine B. AmrheinGeneral Counsel | 132 | $12.75 | $1,683 | 15,357 | — | plan? |
| Jul 3, 2015 AForm 4 → | Jul 7, 5:24 pm EDT | Sharon SjostromChief Product Officer | 568 | — | — | 45,022 | — | plan? |
| Jul 1, 2015 AForm 4 → | Jul 2, 7:58 pm EDT | Taylor SimontonDirector | 3,941 | — | — | 6,055 | — | plan? |
| Jul 1, 2015 AForm 4 → | Jul 2, 7:57 pm EDT | W Phillip MarcumDirector | 3,941 | — | — | 83,083 | — | plan? |
| Jul 1, 2015 AForm 4 → | Jul 2, 7:55 pm EDT | Kim B ClarkeDirector | 3,941 | — | — | 9,209 | — | plan? |
| Jul 1, 2015 AForm 4 → | Jul 2, 7:54 pm EDT | Louis Spencer WellsDirector | 3,941 | — | — | 6,011 | — | plan? |
| Jul 1, 2015 AForm 4 → | Jul 2, 7:53 pm EDT | Derek JohnsonDirector | 3,941 | — | — | 30,191 | — | plan? |
| Jul 1, 2015 AForm 4 → | Jul 2, 3:03 pm EDT | Coliseum Capital Management, LLC +5Director | 3,941 | — | — | 2,099,345 | — | plan? |
| Jun 12, 2015 AForm 4 → | Jun 16, 9:58 pm EDT | Alan Bradley GabbardChief Financial Officer, Director | 31,138 | — | — | 39,926 | — | plan? |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 1, 2026 AForm 4 → | Sep 3, 5:32 pm EDT | Peter Oluoch OwinoChief Accounting Officer | 61,047 | — | — | 61,047 | — | |
| Aug 1, 2026 AForm 4 → | Aug 4, 8:30 pm EDT | Claiborne Benson SmithGen Counsel, Corp Secretary | 61,047 | — | — | 61,047 | — | |
| Aug 1, 2026 AForm 4 → | Aug 4, 8:29 pm EDT | Joseph M WongChief Technology Officer | 61,047 | — | — | 61,047 | — | |
| Jul 31, 2026 AForm 4 → | Aug 4, 8:31 pm EDT | Shimon SteinmetzChief Financial Officer | 243,023 | — | — | 93,023 | — | |
| Jul 17, 2026 ADForm 4 → | Jul 23, 5:12 pm EDT | Robert E. RasmusChief Executive Officer, Director | 2,000,000 | — | — | 600,000 | — | late |
| Aug 14, 2018 MForm 4 → | Aug 16, 5:31 pm EDT | L Heath SampsonPresident & CEO, Director | 92,666 | — | — | 0 | — | |
| Mar 1, 2018 MForm 4 → | Mar 5, 6:32 pm EST | Sharon SjostromChief Product Officer | 9,646 | — | — | 0 | — | |
| Mar 1, 2018 MForm 4 → | Mar 5, 6:10 pm EST | L Heath SampsonPresident & CEO, Director | 29,166 | — | — | 0 | — | |
| Feb 28, 2017 MForm 4 → | Mar 2, 6:37 pm EST | Sharon SjostromChief Product Officer | 5,780 | — | — | 0 | — | |
| Feb 28, 2017 MForm 4 → | Mar 2, 6:33 pm EST | L Heath SampsonPresident & CEO, Director | 8,932 | — | — | 0 | — | |
| Oct 16, 2016 AForm 4 → | Oct 18, 6:24 pm EDT | L Heath SampsonPresident & CEO, Director | 277,998 | — | — | 577,998 | — | |
| Apr 13, 2016 AForm 4 → | Apr 15, 4:41 pm EDT | W Phillip MarcumOther | 24,448 | — | — | 24,448 | — | |
| Mar 1, 2016 MForm 4 → | Mar 3, 7:41 pm EST | Christine B. AmrheinGeneral Counsel | 7,672 | — | — | 12,030 | — | |
| Mar 1, 2016 MForm 4 → | Mar 3, 7:33 pm EST | Jonathan R LagarenneOther | 14,460 | — | — | 21,734 | — | |
| Mar 1, 2016 MForm 4 → | Mar 3, 7:24 pm EST | Sharon SjostromChief Product Officer | 9,504 | — | — | 15,426 | — | |
| Mar 1, 2016 MForm 4 → | Mar 3, 7:14 pm EST | Graham O MattisonVP Investor Relations | 6,232 | — | — | 11,744 | — | |
| Jul 3, 2015 AForm 4 → | Jul 7, 5:24 pm EDT | Sharon SjostromChief Product Officer | 1,136 | — | — | 24,930 | — | |
| Jun 5, 2015 AForm 4 → | Jun 9, 4:44 pm EDT | L Heath SampsonPresident & CEO, Director | 300,000 | — | — | 300,000 | — | |
| Mar 3, 2015 AForm 4 → | Mar 5, 8:31 pm EST | L Heath SampsonChief Financial Officer | 29,166 | — | — | 38,098 | — | |
| Mar 3, 2015 AForm 4 → | Mar 5, 8:23 pm EST | Jonathan R LagarenneExecutive Vice President | 12,942 | — | — | 36,194 | — | |
| Mar 3, 2015 AForm 4 → | Mar 5, 8:07 pm EST | Michael D DurhamPresident and CEO, Director | 72,156 | — | — | 201,768 | — | |
| Mar 3, 2015 AForm 4 → | Mar 5, 7:58 pm EST | Sharon SjostromChief Technology Officer | 8,510 | — | — | 23,794 | — | |
| Mar 3, 2015 AForm 4 → | Mar 5, 7:52 pm EST | Graham O MattisonVP Strategic Initiatives & IR | 7,276 | — | — | 17,976 | — | |
| Mar 3, 2015 AForm 4 → | Mar 5, 7:44 pm EST | Christine B. AmrheinGeneral Counsel | 7,250 | — | — | 19,702 | — | |
| Aug 22, 2014 MForm 4/A → | Feb 17, 2015, 4:37 pm EST | Michael D DurhamPresident and CEO, Director | 98,020 | — | — | 0 | — |