QRHC

SEC source: 0000921895-26-000729 · form412364002_03182026.xml · nonDerivative · entry 1

Culpepper Glenn · CIK 0001566800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,585

F1 · balance_after: Includes (a) 20,000 restricted stock units that are scheduled to fully vest on August 13, 2026 and (b) 41,585 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-26-000699 · form412364002_03162026.xml · nonDerivative · entry 1

Moss Perry W. · CIK 0002025483 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 331,304

F1 · balance_after: Includes (a) 13,333 restricted stock units ("RSUs") that are scheduled to vest in two equal installments on June 26, 2026 and June 26, 2027, (b) 143,067 RSUs that are scheduled to vest in two equal installments on March 12, 2027 and March 12, 2028 (c) 5,537 shares of deferred stock units ("DSUs") (such shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer), (d) 100,000 RSUs that are scheduled to vest in three equal installments on August 13, 2026, August 13, 2027 and August 13, 2028 and (e) 69,367 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-26-000607 · form412364002tom_03032026.xml · nonDerivative · entry 1

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,710

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 17,429 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 26,281 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-26-000605 · form412364002fri_03032026.xml · nonDerivative · entry 1

FRIEDBERG DANIEL M. · CIK 0001448795 · Director · 10% owner

Hampstead Park Capital Management, LLC · CIK 0001773816 · 10% owner

Hampstead Park Environmental Services Investment Fund LLC · CIK 0001773840 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 71,160

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,153 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 53,007 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.

SEC source: 0000921895-26-000606 · form412364002nol_03032026.xml · nonDerivative · entry 1

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,382

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 63,059 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 26,323 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-26-000209 · form412364002tom_02032026.xml · nonDerivative · entry 1

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 41,722

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,027 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 23,695 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-26-000211 · form412364002fri_02032026.xml · nonDerivative · entry 1

FRIEDBERG DANIEL M. · CIK 0001448795 · Director · 10% owner

Hampstead Park Capital Management, LLC · CIK 0001773816 · 10% owner

Hampstead Park Environmental Services Investment Fund LLC · CIK 0001773840 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 62,628

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,153 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 44,475 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.

SEC source: 0000921895-26-000210 · form412364002nol_02032026.xml · nonDerivative · entry 1

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,394

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 63,657 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 23,737 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-26-000030 · form412364002tom_01052026.xml · nonDerivative · entry 1

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,095

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,027 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 22,068 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-26-000032 · form412364002fri_01052026.xml · nonDerivative · entry 1

FRIEDBERG DANIEL M. · CIK 0001448795 · Director · 10% owner

Hampstead Park Capital Management, LLC · CIK 0001773816 · 10% owner

Hampstead Park Environmental Services Investment Fund LLC · CIK 0001773840 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,644

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,153 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 37,491 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.

SEC source: 0000921895-26-000031 · form412364002nol_01052026.xml · nonDerivative · entry 1

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,767

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 63,657 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 22,110 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-25-003397 · form412364002_12292025.xml · nonDerivative · entry 1

Culpepper Glenn · CIK 0001566800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,585

F1 · balance_after: Includes (a) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 and (b) 36,585 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-25-003248 · form412364002tom_12022025.xml · nonDerivative · entry 1

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 38,214

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,027 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 20,187 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-25-003245 · form412364002fri_12022025.xml · nonDerivative · entry 1

FRIEDBERG DANIEL M. · CIK 0001448795 · Director · 10% owner

Hampstead Park Capital Management, LLC · CIK 0001773816 · 10% owner

Hampstead Park Environmental Services Investment Fund LLC · CIK 0001773840 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 47,571

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,153 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 29,418 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon Mr. Friedberg's separation from service with the Issuer.

SEC source: 0000921895-25-003246 · form412364002nol_12022025.xml · nonDerivative · entry 1

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 83,886

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 63,657 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 20,229 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-25-002884 · form412364002tom_11042025.xml · nonDerivative · entry 1

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 36,353

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,027 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 18,326 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-25-002883 · form412364002nol_11042025.xml · nonDerivative · entry 1

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,025

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 63,657 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 18,368 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0001062993-25-016311 · form4.xml · nonDerivative · entry 3

KITT BARRY M · CIK 0001165244 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,692,248

F1 · ownership.direct: Barry M. Kitt exercises investment discretion and control over the securities of the Issuer held by Pinnacle Family Office Investments, L.P. ("Pinnacle"). Mr. Kitt may be deemed to be the beneficial owner of the securities beneficially owned by Pinnacle. Mr. Kitt hereby disclaims beneficial ownership of the shares of common stock reported herein except to the extent of his direct or indirect pecuniary interest therein, and this Form 4 is not an admission that Mr. Kitt is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F2 · ownership.direct: This Form 4 is filed on behalf of Pinnacle and Barry M. Kitt. Pinnacle Family Office, LLC ("Pinnacle Family") is the general partner of Pinnacle. Mr. Kitt is the manager of Pinnacle Family.

F3 · ownership.nature: Held by Pinnacle.

SEC source: 0001062993-25-016311 · form4.xml · nonDerivative · entry 2

KITT BARRY M · CIK 0001165244 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 2,629,381

F1 · ownership.direct: Barry M. Kitt exercises investment discretion and control over the securities of the Issuer held by Pinnacle Family Office Investments, L.P. ("Pinnacle"). Mr. Kitt may be deemed to be the beneficial owner of the securities beneficially owned by Pinnacle. Mr. Kitt hereby disclaims beneficial ownership of the shares of common stock reported herein except to the extent of his direct or indirect pecuniary interest therein, and this Form 4 is not an admission that Mr. Kitt is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F2 · ownership.direct: This Form 4 is filed on behalf of Pinnacle and Barry M. Kitt. Pinnacle Family Office, LLC ("Pinnacle Family") is the general partner of Pinnacle. Mr. Kitt is the manager of Pinnacle Family.

F3 · ownership.nature: Held by Pinnacle.

SEC source: 0001062993-25-016311 · form4.xml · nonDerivative · entry 1

KITT BARRY M · CIK 0001165244 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 2,595,901

F1 · ownership.direct: Barry M. Kitt exercises investment discretion and control over the securities of the Issuer held by Pinnacle Family Office Investments, L.P. ("Pinnacle"). Mr. Kitt may be deemed to be the beneficial owner of the securities beneficially owned by Pinnacle. Mr. Kitt hereby disclaims beneficial ownership of the shares of common stock reported herein except to the extent of his direct or indirect pecuniary interest therein, and this Form 4 is not an admission that Mr. Kitt is the beneficial owner of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F2 · ownership.direct: This Form 4 is filed on behalf of Pinnacle and Barry M. Kitt. Pinnacle Family Office, LLC ("Pinnacle Family") is the general partner of Pinnacle. Mr. Kitt is the manager of Pinnacle Family.

F3 · ownership.nature: Held by Pinnacle.

SEC source: 0000921895-25-002657 · form412364030tom_10012025.xml · nonDerivative · entry 1

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 34,051

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,027 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 16,024 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-25-002658 · form412364030nol_10012025.xml · nonDerivative · entry 1

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 79,723

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 63,657 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 16,066 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-25-002534 · form412364002_09042025.xml · nonDerivative · entry 1

Dunning Audrey · CIK 0001800836 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,485

F1 · balance_after: Includes (a) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 and (b) 32,485 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-25-002512 · form412364002tom_09022025.xml · nonDerivative · entry 1

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 31,808

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,027 deferred stock units ("DSUs") granted under the Issuer's 2012 Incentive Compensation Plan and (b) 13,781 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-25-002513 · form412364002nol_09022025.xml · nonDerivative · entry 1

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 77,480

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 63,657 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 13,823 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-25-002358 · form412364002_08212025.xml · nonDerivative · entry 1

FRIEDBERG DANIEL M. · CIK 0001448795 · Director · 10% owner

Hampstead Park Capital Management, LLC · CIK 0001773816 · 10% owner

Hampstead Park Environmental Services Investment Fund LLC · CIK 0001773840 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By: Hampstead Park Environmental Services Investment Fund LLC

Disclosed balance after: 2,842,353

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.57 to $1.60, inclusive. The Reporting Persons undertake to provide the Issuer and any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, further information regarding the number of shares purchased at each separate price such shares were purchased.

F2 · ownership.nature: This Form 4 is filed jointly by Hampstead Park Environmental Services Investment Fund LLC ("Hampstead Park Environmental"), Daniel Friedberg and Hampstead Park Capital Management, LLC ("Hampstead Park Capital"). Hampstead Park Capital is the sole member of Hampstead Park Environmental, and Mr. Friedberg is the Chief Executive Officer of Hampstead Park Capital; each may therefore be deemed to control Hampstead Park Environmental. In addition, Mr. Friedberg is a Director of the Issuer.

SEC source: 0000921895-25-002328 · form412364002cul_08182025.xml · nonDerivative · entry 1

Culpepper Glenn · CIK 0001566800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,585

F1 · price: The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.67 to $1.68, inclusive. The Reporting Person undertakes to provide the Issuer and any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, further information regarding the number of shares purchased at each separate price such shares were purchased.

F2 · balance_after: Includes (a) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 and (b) 31,585 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0001193805-25-001200 · e664790_4-lipstein.xml · nonDerivative · entry 1

Lipstein Robert J · CIK 0001701946 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,500

F1 · balance_after: Includes (a) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 and (b) 17,500 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-25-002315 · form412364002mos_08142025.xml · nonDerivative · entry 1

Moss Perry W. · CIK 0002025483 · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 355,875

F1 · shares: Represents restricted stock units ("RSUs") granted to the Reporting Person on August 13, 2025 (the "Grant Date") and is subject to the terms and conditions of the Issuer's 2024 Incentive Compensation Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs are scheduled to vest as follows: one-third upon the first anniversary of the Grant Date, one-third upon the second anniversary of the Grant Date, and one-third upon the third anniversary of the Grant Date.

F2 · balance_after: Includes (a) 13,333 RSUs that are scheduled to vest in two equal installments on June 26, 2026 and June 26, 2027, (b) 214,600 RSUs that are scheduled to vest in three equal installments on March 12, 2026, March 12, 2027 and March 12, 2028, (c) 5,537 shares of deferred stock units ("DSUs") (such shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer), (d) 100,000 RSUs that are scheduled to vest in three equal installments on August 13, 2026, August 13, 2027 and August 13, 2028 and (e) 22,405 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-25-002309 · form412364002swe_08142025.xml · nonDerivative · entry 1

Sweitzer David P · CIK 0001685530 · EVP and COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,900

F1 · shares: Represents restricted stock units ("RSUs") granted to the Reporting Person on August 13, 2025 (the "Grant Date") and is subject to the terms and conditions of the Issuer's 2024 Incentive Compensation Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs are scheduled to vest as follows: one-third upon the first anniversary of the Grant Date, one-third upon the second anniversary of the Grant Date, and one-third upon the third anniversary of the Grant Date. The Reporting Person has reported prior awards of RSUs in Table II of Form 4.

F2 · balance_after: Includes (a) 16,667 RSUs, which the reporting person previously reported on Table II of Form 4, that are scheduled to vest in two equal installments on June 26, 2026 and June 26, 2027, (b) 50,000 RSUs that are scheduled to vest in three equal installments on August 13, 2026, August 13, 2027 and August 13, 2028 and (c) 14,233 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-25-002307 · form412364002tom_08142025.xml · nonDerivative · entry 2

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 44,335

F3 · shares: Represents RSUs granted on August 13, 2025 that are scheduled to fully vest on August 13, 2026. Each RSU represents a contingent right to receive one share of common stock upon vesting. The Reporting Person has reported prior awards of RSUs in Table II of Form 4.

F2 · price: RSUs convert into common stock on a one-for-one basis.

F4 · balance_after: Includes (a) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 (b) 24,335 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-25-002308 · form412364002fri_08142025.xml · nonDerivative · entry 2

FRIEDBERG DANIEL M. · CIK 0001448795 · Director · 10% owner

Hampstead Park Capital Management, LLC · CIK 0001773816 · 10% owner

Hampstead Park Environmental Services Investment Fund LLC · CIK 0001773840 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,585

F4 · shares: Represents RSUs granted on August 13, 2025 and scheduled to fully vest on August 13, 2026. Each RSU represents a contingent right to receive one share of common stock upon vesting. The Reporting Person has reported prior awards of RSUs in Table II of Form 4.

F2 · price: RSUs convert into common stock on a one-for-one basis.

F5 · balance_after: Includes (a) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 and (b) 20,585 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-25-002314 · form412364002cul_08142025.xml · nonDerivative · entry 2

Culpepper Glenn · CIK 0001566800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,585

F3 · shares: Represents RSUs granted on August 13, 2025 and scheduled to fully vest on August 13, 2026. Each RSU represents a contingent right to receive one share of common stock upon vesting. The Reporting Person has reported prior awards of RSUs in Table II of Form 4.

F2 · price: RSUs convert into common stock on a one-for-one basis.

F4 · balance_after: Includes (a) 20,000 RSUs that are scheduled to vest in three equal installments on August 13, 2026, August 13, 2027 and August 13, 2028 and (b) 26,585 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-25-002313 · form412364002lip_08142025.xml · nonDerivative · entry 1

Lipstein Robert J · CIK 0001701946 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,500

F1 · shares: Represents restricted stock units ("RSUs") granted on August 12, 2024 and scheduled to fully vest on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F2 · price: RSUs convert into common stock on a one-for-one basis.

F3 · balance_after: Includes (a) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 and (b) 2,500 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-25-002312 · form412364002nol_08142025.xml · nonDerivative · entry 2

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 112,585

F4 · shares: Represents RSUs granted on August 13, 2025 and scheduled to fully vest on August 13, 2026. Each RSU represents a contingent right to receive one share of common stock upon vesting. The Reporting Person has reported prior awards of RSUs in Table II of Form 4.

F2 · price: RSUs convert into common stock on a one-for-one basis.

F5 · balance_after: Includes (a) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 and (b) 92,585 shares of common stock beneficially owned by the Reporting Person, of which 5,000 are held jointly by the Reporting Person and his spouse.

SEC source: 0000921895-25-002311 · form412364002joh_08142025.xml · nonDerivative · entry 1

Johnston Brett Wade · CIK 0001950481 · Sr. VP of Finance and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,583

F1 · shares: Represents restricted stock units ("RSUs") granted to the Reporting Person on August 13, 2025 (the "Grant Date") and is subject to the terms and conditions of the Issuer's 2024 Incentive Compensation Plan. Each RSU represents a contingent right to receive one share of the Issuer's common stock upon vesting. The RSUs are scheduled to vest as follows: one-third upon the first anniversary of the Grant Date, one-third upon the second anniversary of the Grant Date, and one-third upon the third anniversary of the Grant Date. The Reporting Person has reported prior awards of RSUs in Table II of Form 4.

F2 · balance_after: Includes (a) 13,333 RSUs, which the reporting person previously reported on Table II of Form 4, that are scheduled to vest in two equal installments on June 26, 2026 and June 26, 2027, (b) 40,000 RSUs that are scheduled to vest in three equal installments on August 13, 2026, August 13, 2027 and August 13, 2028 and (c) 34,250 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-25-002310 · form412364002dun_08142025.xml · nonDerivative · entry 2

Dunning Audrey · CIK 0001800836 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 48,485

F3 · shares: Represents RSUs granted on August 13, 2025 and scheduled to fully vest on August 13, 2026. Each RSU represents a contingent right to receive one share of common stock upon vesting. The Reporting Person has reported prior awards of RSUs in Table II of Form 4.

F2 · price: RSUs convert into common stock on a one-for-one basis.

F4 · balance_after: Includes (a) 20,000 RSUs that are scheduled to fully vest on August 13, 2026 and (b) 28,485 shares of common stock beneficially owned by the Reporting Person.

SEC source: 0000921895-25-002307 · form412364002tom_08142025.xml · derivative · entry 4

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,409 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: RSUs convert into common stock on a one-for-one basis.

F1 · kind: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F1 · derivative.exercise_date: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F1 · derivative.expiration_date: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

SEC source: 0000921895-25-002307 · form412364002tom_08142025.xml · nonDerivative · entry 1

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,335

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F2 · price: RSUs convert into common stock on a one-for-one basis.

SEC source: 0000921895-25-002308 · form412364002fri_08142025.xml · derivative · entry 5

FRIEDBERG DANIEL M. · CIK 0001448795 · Director · 10% owner

Hampstead Park Capital Management, LLC · CIK 0001773816 · 10% owner

Hampstead Park Environmental Services Investment Fund LLC · CIK 0001773840 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,409 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: RSUs convert into common stock on a one-for-one basis.

F1 · kind: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F1 · derivative.exercise_date: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F1 · derivative.expiration_date: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

SEC source: 0000921895-25-002308 · form412364002fri_08142025.xml · nonDerivative · entry 1

FRIEDBERG DANIEL M. · CIK 0001448795 · Director · 10% owner

Hampstead Park Capital Management, LLC · CIK 0001773816 · 10% owner

Hampstead Park Environmental Services Investment Fund LLC · CIK 0001773840 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,585

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F2 · price: RSUs convert into common stock on a one-for-one basis.

F3 · balance_after: These shares represent shares of common stock of the Issuer held by Mr. Friedberg.

SEC source: 0000921895-25-002314 · form412364002cul_08142025.xml · derivative · entry 4

Culpepper Glenn · CIK 0001566800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,409 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: RSUs convert into common stock on a one-for-one basis.

F1 · kind: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F1 · derivative.exercise_date: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F1 · derivative.expiration_date: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

SEC source: 0000921895-25-002314 · form412364002cul_08142025.xml · nonDerivative · entry 1

Culpepper Glenn · CIK 0001566800 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,585

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F2 · price: RSUs convert into common stock on a one-for-one basis.

SEC source: 0000921895-25-002312 · form412364002nol_08142025.xml · derivative · entry 4

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,409 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: RSUs convert into common stock on a one-for-one basis.

F1 · kind: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F1 · derivative.exercise_date: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F1 · derivative.expiration_date: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

SEC source: 0000921895-25-002312 · form412364002nol_08142025.xml · nonDerivative · entry 1

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 92,585

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F2 · price: RSUs convert into common stock on a one-for-one basis.

F3 · balance_after: These shares represent shares of common stock of the Issuer held by the Reporting Person, of which 5,000 are held jointly by the Reporting Person and his spouse.

SEC source: 0000921895-25-002310 · form412364002dun_08142025.xml · derivative · entry 4

Dunning Audrey · CIK 0001800836 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 10,409 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: RSUs convert into common stock on a one-for-one basis.

F1 · kind: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F1 · derivative.exercise_date: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F1 · derivative.expiration_date: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

SEC source: 0000921895-25-002310 · form412364002dun_08142025.xml · nonDerivative · entry 1

Dunning Audrey · CIK 0001800836 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,485

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: Represents restricted stock units ("RSUs") granted on August 12, 2024 that fully vested on August 12, 2025. Each RSU represents a contingent right to receive one share of common stock upon vesting.

F2 · price: RSUs convert into common stock on a one-for-one basis.

SEC source: 0000921895-25-002063 · form412364002tom_08012025.xml · nonDerivative · entry 1

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,937

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,027 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 11,910 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-25-002064 · form412364002nol_08012025.xml · nonDerivative · entry 1

Nolan Stephen A · CIK 0001578531 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,609

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 63,657 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 11,952 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

SEC source: 0000921895-25-001928 · form412364002tom_07022025.xml · nonDerivative · entry 1

Tomolonius Sarah · CIK 0001685481 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,196

F1 · shares: These reported securities represent deferred stock units ("DSUs") granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.

F2 · balance_after: The reported securities include (a) 18,027 DSUs granted under the Issuer's 2012 Incentive Compensation Plan and (b) 10,169 DSUs granted under the Issuer's 2024 Incentive Compensation Plan. The shares of common stock underlying such DSUs shall be issued upon the Reporting Person's separation from service with the Issuer.