Arq, Inc. — fact timeline

Shimon Steinmetz was appointed as Chief Financial Officer at Arq, Inc..

“until Shimon Steinmetz commences his employment as the Company's Chief Financial Officer on or around July 27, 2026, as previously disclosed.”

Bob Rasmus changed role as principal financial officer at Arq, Inc..

“Also on June 14, 2026, the Board designated Bob Rasmus, the Company's President, Chief Executive Officer, and current principal executive officer, as the Company's principal financial officer, to serve in that role until Shimon Steinmetz commences his employment as the Company's Chief Financial Officer on or around July 27, 2026, as previously disclosed.”

Peter Owino was appointed as Interim Chief Accounting Officer at Arq, Inc..

“On June 14, 2026, the Board of Directors (the “Board”) of Arq, Inc. (the “Company”) appointed Peter Owino, 51, as the Company’s Interim Chief Accounting Officer, effective as of June 12, 2026.”

Arq, Inc. shareholders approved To approve the Ninth Amendment to Tax Asset Protection Plan by and between the Company and Computer Share Trust Company, N.A., as rights agent.

“(5) Proposal: To approve the Ninth Amendment to Tax Asset Protection Plan by and between the Company and Computer Share Trust Company, N.A., as rights agent. Votes For Against Abstain Broker Non-Votes 20,808,187 1,530,075 23,943 9,645,289”

Arq, Inc. shareholders approved To approve the Arq, Inc. 2026 Omnibus Incentive Plan.

“(4) Proposal: To approve the Arq, Inc. 2026 Omnibus Incentive Plan. Votes For Against Abstain Broker Non-Votes 16,506,996 3,879,647 1,975,562 9,645,289”

Arq, Inc. shareholders approved Ratification of the Audit Committee's selection of Baker Tilly US, LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2026 at the 2026-12-31 meeting.

“(3) Proposal: Ratification of the Audit Committee's selection of Baker Tilly US, LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2026. Votes For Against Abstain Broker Non-Votes 31,874,146 58,879 74,469 N/A”

Arq, Inc. shareholders approved To approve, on an advisory basis, of the Company's compensation paid to named executive officers.

“(2) Proposal: To approve, on an advisory basis, of the Company's compensation paid to named executive officers, as disclosed in the 2026 Proxy Statement pursuant to the compensation disclosure rules of the Securities and Exchange Commission (which includes the compensation tables and related narrative discussion). Votes For Against Abstain Broker Non-Votes 21,562,428 670,264 129,513 9,645,289”

Arq, Inc. shareholders approved Election of six directors to the Company's Board of Directors.

“(1) Proposal: Election of six directors to the Company's Board of Directors. Votes Director Name For Withheld Broker Non-Votes Laurie Bergman 21,756,739 605,466 9,645,289 Jeremy Blank 19,796,330 2,565,875 9,645,289 Richard Campbell-Breeden 21,812,209 549,996 9,645,289 Carol Eicher 21,560,459 801,746 9,645,289 Julian McIntyre 19,633,501 2,728,704 9,645,289 Robert Rasmus 19,871,142 2,491,063 9,645,289”

Stacia Hansen resigned as Chief Accounting Officer and Treasurer at Arq, Inc..

“On May 20, 2026, Stacia Hansen, the Chief Accounting Officer and Treasurer of the Company, submitted her resignation and the Board accepted such resignation. The effective date of Ms. Hansen's resignation as Chief Accounting Officer is expected to be June 12, 2026.”

Shimon Steinmetz was appointed as Executive Vice President and Chief Financial Officer at Arq, Inc..

“On May 26, 2026, the Board of Directors (the “Board”) of Arq, Inc. (the “Company”) appointed Shimon Steinmetz, 48, as the Company’s Executive Vice President and Chief Financial Officer, effective as of his commencement date which will be on or prior to July 27, 2026.”

Jay Voncannon departed as Chief Financial Officer at Arq, Inc..

“Jeremy “Deke” Williamson ceased serving as the Chief Operating Officer and Jay Voncannon ceased serving as Chief Financial Officer of Arq, Inc.”

Jeremy "Deke" Williamson departed as Chief Operating Officer at Arq, Inc..

“Jeremy “Deke” Williamson ceased serving as the Chief Operating Officer and Jay Voncannon ceased serving as Chief Financial Officer of Arq, Inc.”

Arq, Inc. issued securities.

“On April 15, 2026, Arq, Inc. (the "Company"), a Delaware corporation, entered into the Ninth Amendment to its Tax Asset Protection Plan (the "Ninth Amendment") between the Company and Computershare Trust Company, N.A. (the "Rights Agent") that amends the Company's Tax Asset Protection Plan dated May 5, 2017, as amended (the "TAPP") between the Company and the Rights Agent. The Ninth Amendment amends the definition of "Final Expiration Date" under the TAPP to extend the duration of the TAPP and makes associated changes in connection therewith.”

Arq, Inc. amended Fifth Amendment with MidCap Funding IV Trust (effective 2026-03-31).

“On March 31, 2026 , Arq, Inc. (the "Company") and certain of its subsidiaries, entered into the fifth amendment (the "Fifth Amendment") to the Credit, Security and Guaranty Agreement (the "Revolving Credit Agreement"), dated December 27, 2024, as amended on May 6, 2025, December 9, 2025, January 28, 2026, and February 27, 2026, with MidCap Funding IV Trust, in its capacity as agent, the lenders from time to time party thereto, and any entities that become party thereto as Guarantors.”

Arq, Inc. reported the fiscal year ended December 31, 2025 results: revenue $120.3 million, net income Net loss of $52.6 million. Guidance initiated.

“• Generated revenue of $120.3 million in FY 2025 ($29.4 million in Q4 2025), up 10% over the prior year, driven largely by positive changes in product mix and overall volumes • Gross margin of 27.9% in FY 2025 vs. 36.2% in FY 2024, driven by higher costs directly related to granular activated carbon (“GAC”) start-up costs • Gross margin in Q4 2025 of 13.6% vs. 36.3% in Q4 2024, reflecting negative impact of GAC start-up costs • Recorded non-cash impairment charge of $45 million related to Corbin assets in Q4 2025, reflecting the temporary idling of the Corbin facility. • Reported Net loss of $52.6 million in FY 2025, versus a Net loss of $5.1 million in FY 2024”

Arq, Inc. reported the fourth quarter ended December 31, 2025 results: revenue $29.4 million, net income Net loss of $50.0 million. Guidance initiated.

“• Generated revenue of $120.3 million in FY 2025 ($29.4 million in Q4 2025), up 10% over the prior year, driven largely by positive changes in product mix and overall volumes • Gross margin of 27.9% in FY 2025 vs. 36.2% in FY 2024, driven by higher costs directly related to granular activated carbon (“GAC”) start-up costs • Gross margin in Q4 2025 of 13.6% vs. 36.3% in Q4 2024, reflecting negative impact of GAC start-up costs • Recorded non-cash impairment charge of $45 million related to Corbin assets in Q4 2025, reflecting the temporary idling of the Corbin facility. • Reported Net loss of $52.6 million in FY 2025, versus a Net loss of $5.1 million in FY 2024; Q4 2025 Net loss of $50.0 million vs. Net loss of $1.3 million in Q4 2024”

Arq, Inc. amended Fourth Amendment with MidCap Funding IV Trust (effective 2026-02-27).

“On February 27, 2026 , Arq, Inc. (the "Company") and certain of its subsidiaries, entered into the fourth amendment (the "Fourth Amendment") to the Credit, Security and Guaranty Agreement (the "Revolving Credit Agreement"), dated December 27, 2024, as amended on May 6, 2025, December 9, 2025, and January 28, 2026, with MidCap Funding IV Trust, in its capacity as agent, the lenders from time to time party thereto, and any entities that become party thereto as Guarantors.”

Arq, Inc. amended Third Amendment with MidCap Funding IV Trust (effective 2026-01-28).

“entered into the third amendment (the "Third Amendment") to the Credit, Security and Guaranty Agreement (the "Revolving Credit Agreement"), dated December 27, 2024, as amended on May 6, 2025 and December 9, 2025, with MidCap Funding IV Trust, in its capacity as agent”

Arq, Inc. amended Second Amendment with MidCap Funding IV Trust, in its capacity as agent, the lenders from time to time party thereto, and any entities that become party thereto as Guarantors (effective 2025-12-09).

“On December 9, 2025 , Arq, Inc. (the "Company") and certain of its subsidiaries, entered into the second amendment (the "Second Amendment") to the Credit, Security and Guaranty Agreement (the "Revolving Credit Agreement"), dated December 27, 2024, as amended on May 6, 2025, with MidCap Funding IV Trust, in its capacity as agent, the lenders from time to time party thereto, and any entities that become party thereto as Guarantors.”

Arq, Inc. engaged Baker Tilly US, LLP as its auditor.

“the Audit Committee of the Company's Board of Directors approved the appointment of Baker Tilly to succeed Moss Adams as the Company's independent registered public accounting firm”

Moss Adams, LLP resigned as auditor of Arq, Inc..

“(the “Company”), was notified that Moss Adams, LLP (“Moss Adams”), the Company's independent registered public accounting firm, merged with Baker Tilly US, LLP, effective June 3, 2025.”

Gilbert Li departed as Director at Arq, Inc..

“As a result of their not standing for reelection at the Annual Meeting, L. Spencer Wells and Gilbert Li no longer serve as members of the Company's Board of Directors (the "Board"), effective immediately following the conclusion of the Annual Meeting.”

L. Spencer Wells departed as Director at Arq, Inc..

“As a result of their not standing for reelection at the Annual Meeting, L. Spencer Wells and Gilbert Li no longer serve as members of the Company's Board of Directors (the "Board"), effective immediately following the conclusion of the Annual Meeting.”

Stacia Hansen changed role as Chief Accounting Officer at Arq, Inc..

“Upon Mr. Voncannon's appointment, Stacia Hansen will no longer serve as the Company’s principal financial officer, but will continue to serve as the Company’s Chief Accounting Officer, principal accounting officer, and key leadership positions she assumed in November 2023.”

Jay L. Voncannon was appointed as Chief Financial Officer at Arq, Inc..

“On March 31, 2025 and effective April 2, 2025 (the "Effective Date"), the Board of Directors (the “Board”) of Arq, Inc. (the “Company”) appointed Jay L. Voncannon, 59, as the Company’s Chief Financial Officer”

Arq, Inc. entered into Purchase Agreement with certain accredited investors valued at approximately $15 million (effective 2024-05-15).

“On May 15, 2024, Arq, Inc. (the “Company”) entered into a securities purchase agreement (the “Purchase Agreement”) with certain accredited investors named therein (the “Purchasers”) for the private placement (the “Private Placement”) of an aggregate of 2,142,858 shares (the “Shares”) of the Company’s common stock, par value $0.001 per share (the “Common Stock”), at a purchase price of $7.00 per Share.”

Arq, Inc. reported the quarter ended March 31, 2024 results: revenue $21.7 million, net income Net loss of $3.4 million.

“Generated revenue of $21.7 million in Q1 2024”

Arq, Inc. amended Seventh Amendment to Tax Asset Protection Plan with Computershare Trust Company, N.A. valued at amends the definition of Final Expiration Date; extends until December 31, 2025 or December 31, 2024 (effective 2024-04-15).

“On April 15, 2024, Arq, Inc. (the "Company"), a Delaware corporation, entered into the Seventh Amendment to Tax Asset Protection Plan (the "Seventh Amendment") between the Company and Computershare Trust Company, N.A. (the "Rights Agent") that amends the Tax Asset Protection Plan dated May 5, 2017, as amended (the "TAPP") between the Company and the Rights Agent.”

Arq, Inc. reported fourth quarter and year ended December 31, 2023 results: revenue $28.1 million, net income $3.3 million.

“31, 2023. Financial Highlights • Achieved positive net income of $3.3 million in Q4 2023, reflecting the first positive net income quarter since Q4 2021. • Increased revenue to $28.1 million in Q4 2023, reflecting growth of 20% over the prior year period, driven by higher average selling prices, positive changes in product mix and $4.7 million of take-or-pay revenue,”

Arq, Inc. amended Master Agreement for Supply of Furnace Products with a subsidiary of Norit Americas, Inc. (effective 2024-02-08).

“Arq, Inc. (f/k/a Advanced Emissions Solutions, Inc.), a Delaware corporation (the "Company"), through its wholly-owned subsidiary Arq Solutions (Red River), LLC, entered into an amendment (the “Amendment”) to its Master Agreement for Supply of Furnace Products (the "Agreement") with a subsidiary of Norit Americas, Inc., a Georgia corporation (“Buyer”).”

Arq, Inc.: Amended and restated bylaws solely to update company name to Arq, Inc (effective 2024-02-01).

“The Company also amended and restated its Bylaws solely to update the Company’s name to Arq, Inc., to be effective February 1, 2024.”

Arq, Inc.: Amended certificate of incorporation to change company name from Advanced Emissions Solutions, Inc. to Arq, Inc (effective 2024-02-01).

“On January 31, 2024, Advanced Emissions Solutions, Inc. (the "Company") filed an amendment (the "Amendment") to its Second Amended and Restated Certificate of Incorporation to change the Company’s name to "Arq, Inc." (the "Name Change"), to be effective February 1, 2024.”

Arq, Inc. entered into Contract for Construction with The Wieland-Davco Corporation valued at in the range of $45 to $50 million (effective 2024-01-19).

“On January 19, 2024, Advanced Emissions Solutions, Inc., a Delaware corporation (the "Company"), through its wholly-owned subsidiary ADA Carbon Solutions (Red River), LLC, entered into a Contract for Construction (the "Contract") with The Wieland-Davco Corporation, a Michigan corporation. The Contract provides for pre-construction and construction services at the Company's existing manufacturing facility located at 201 Red River Mine Road, Coushatta Louisiana, 71079 (the "Plant") to build a granular activated carbon facility at the Plant (the "Facility").”

Arq, Inc. reported the quarter ended September 30, 2023 results: revenue $29.8 million, net income $2.2 million.

“Third quarter consumables revenue was $29.8 million compared to $28.4 million in the prior year period.”

Morgan Fields was terminated as Chief Accounting Officer at Arq, Inc..

“Ms. Fields will remain an employee of the Company until her employment with the Company terminates on December 21, 2023.”

Stacia Hansen was appointed as Chief Accounting Officer at Arq, Inc..

“appointed Stacia Hansen to succeed Morgan Fields as the Company’s Chief Accounting Officer effective November 6, 2023”

Jeremy 'Deke' Williamson was appointed as Chief Operating Officer at Arq, Inc..

“has appointed Jeremy "Deke" Williamson to the position of Chief Operating Officer effective September 18, 2023”

Arq, Inc. reported the three and six months ended June 30, 2023 results: revenue $41.3 million, net income net loss was $13.4 million.

“were $20.4 million and $15.3 million, respectively, compared to $24.7 million and $19.9 million for the second quarter of 2022. First half revenues and costs of revenues were $41.3 million and $32.5 million, respectively, compared to $51.1 million and $41.4 million for the comparable period in the prior year. The revenue declines were the result of lower sales of”

Arq, Inc. reported the quarter ended June 30, 2023 results: revenue $20.4 million, net income net loss was $5.9 million.

“begun. • Continued progress on capital projects to expand product offerings to include granular activated carbons. Financial Highlights • Second quarter consumables revenue was $20.4 million compared to $24.7 million in the prior year period. • Second quarter net loss was $5.9 million compared to net loss of $0.3 million in the prior year period. • Second quarter”

Greg Marken changed role as President and Chief Executive Officer at Arq, Inc..

“Greg Marken transitioned out of his position as the Company’s President and Chief Executive Officer effective July 17, 2023”

Greg Marken departed as President and Chief Executive Officer at Arq, Inc..

“the Company’s Board of Directors (the "Board") appointed Mr. Rasmus to succeed Greg Marken as the Company’s President and Chief Executive Officer effective July 17, 2023”

Robert Rasmus was appointed as Board member at Arq, Inc..

“The Board also increased the size of the Board to eight directors and appointed Mr. Rasmus to fill the vacancy as a Board member, effective as of the Effective Date.”

Robert Rasmus was appointed as President and Chief Executive Officer at Arq, Inc..

“the Company’s Board of Directors (the "Board") appointed Mr. Rasmus to succeed Greg Marken as the Company’s President and Chief Executive Officer effective July 17, 2023”

Arq, Inc. shareholders approved To approve the Sixth Amendment to Tax Asset Protection Plan by and between the Company and Computer Share Trust Company, N.A., as rights agent at the 2023-06-13 meeting.

“(5) Proposal: To approve the Sixth Amendment to Tax Asset Protection Plan by and between the Company and Computer Share Trust Company, N.A., as rights agent. Votes For Against Abstain Broker Non-Votes 8,286,298 5,516,010 51,267 4,020,103”

Arq, Inc. shareholders approved To approve the issuance, in accordance with Nasdaq Listing Rule 5635(a), of our common stock, upon conversion of our Series A Preferred Stock issued on February 1, 2023 at the 2023-06-13 meeting.

“(4) Proposal: To approve the issuance, in accordance with Nasdaq Listing Rule 5635(a), of our common stock, upon conversion of our Series A Preferred Stock issued on February 1, 2023. Votes For Against Abstain Broker Non-Votes 8,308,200 1,695,336 26,584 4,020,103”

Arq, Inc. shareholders approved Ratification of the Audit Committee's selection of Moss Adams LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2023 at the 2023-06-13 meeting.

“(3) Proposal: Ratification of the Audit Committee's selection of Moss Adams LLP as the Company's independent registered public accounting firm for the fiscal year ending December 31, 2023. Votes For Against Abstain Broker Non-Votes 17,601,341 207,412 64,925 N/A”

Arq, Inc. shareholders approved Approval, on an advisory basis, of the Company's compensation paid to named executive officers, as disclosed in the 2023 Proxy Statement pursuant to the compensation disclosure rules of the Securities and Exchange Commission (which includes the compensation tables and related narrative discussion) at the 2023-06-13 meeting.

“(2) Proposal: Approval, on an advisory basis, of the Company's compensation paid to named executive officers, as disclosed in the 2023 Proxy Statement pursuant to the compensation disclosure rules of the Securities and Exchange Commission (which includes the compensation tables and related narrative discussion). Votes For Against Abstain Broker Non-Votes 9,446,410 4,171,331 235,834 4,020,103”

Arq, Inc. shareholders approved Election of seven directors at the 2023-06-13 meeting.

“(1) Proposal: Election of seven directors to the Company's Board of Directors. Votes Director Name For Withheld Broker Non-Votes Laurie Bergman 11,430,129 2,423,446 4,020,103 Jeremy Blank 11,209,494 2,644,081 4,020,103 Richard Campbell-Breeden 11,206,801 2,646,774 4,020,103 Carol Eicher 9,642,153 4,211,422 4,020,103 Gilbert Li 10,391,903 3,461,672 4,020,103 Julian McIntyre 11,212,020 2,641,555 4,020,103 L. Spencer Wells 10,058,122 3,795,453 4,020,103”

Arq, Inc. entered into Loan Modification Agreement with Community Trust Bank, Inc. valued at $10,000,000 term loan modified; $50,000 fee paid + $727,990 deposited into Interest Reserve Account (effective 2023-06-02).

“On June 2, 2023, (the "Effective Date") certain of the Subsidiaries, which include Corbin Project LLC, Arq Projects Holding Company LLC, Arq St. Rose LLC, Arq Corbin LLC and Arq Corbin Land LLC, each a Delaware limited liability company (collectively, the "Borrowers"), the Company and Community Trust Bank, Inc., a Kentucky corporation (the "Bank") entered into a loan modification agreement (the "Loan Modification Agreement") to the Loan Agreement (USDA Guaranteed Loan) by and among the Bank and the Borrowers dated January 27, 2021, as amended by that certain letter agreement by and among the Bank and Borrowers dated January 21, 2022, and as otherwise amended, modified and/or extended by the parties from time to time (collectively, the "Loan Agreement").”

Arq, Inc. reported the quarter ended March 31, 2023 results: revenue $20.8 million, net income $7.5 million, EPS $0.32 per diluted share.

“obligation for Marshall Mine and will result in the release of a portion of the Company’s restricted cash balance. Financial Highlights • First quarter consumables revenue was $20.8 million compared to $26.4 million in the prior year. • First quarter net loss was $7.5 million compared to net loss of $3.0 million in the prior year. • First quarter Adjusted EBITDA”