SCWO

SEC source: 0000950170-24-128981 · ownership.xml · nonDerivative · entry 2

Anderson Adrienne · CIK 0001962594 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,762

F2 · shares: 50% of the shares were vested on the date of grant. The remaining 50% of the shares will vest upon the successful transition of recipent's responsibilities to the Company's incoming Chief Financial Officer, as determined in good faith by the Issuer.

SEC source: 0000950170-24-128981 · ownership.xml · nonDerivative · entry 1

Anderson Adrienne · CIK 0001962594 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 11,762

F1 · shares: Fully vested on date of grant.

SEC source: 0000950170-24-128979 · ownership.xml · nonDerivative · entry 1

Vanderhider James Michael · CIK 0001935169 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,000

F1 · shares: Fully vested on date of grant.

SEC source: 0000950170-24-128978 · ownership.xml · nonDerivative · entry 1

Estes Deanna Rene · CIK 0001935149 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 52,500

F1 · shares: Fully vested on date of grant.

SEC source: 0000950170-24-128977 · ownership.xml · nonDerivative · entry 1

Mandel Peter · CIK 0002035922 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 247,775

F1 · shares: Vesting commencement date is August 19, 2024. 25% of the shares vest and become exercisable on the first annual anniversary of the vesting commencement date and the balance vest and become exercisable equally on the last day of every month thereafter over the following 36 months, subject to the Reporting Person's continuous service through each vesting date.

SEC source: 0000950170-24-130713 · ownership.xml · nonDerivative · entry 1

DAVIS RICHARD H · CIK 0001429114 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 322,898

F1 · shares: Fully vested on date of grant.

SEC source: 0001654954-24-014598 · section16.xml · nonDerivative · entry 1

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,120,322

F1 · price: This transaction was executed in multiple trades at prices ranging from $1.410 to $1.412. The price set forth above reflects the weighted-average price per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected

SEC source: 0001654954-24-014450 · section16.xml · nonDerivative · entry 2

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,128,885

SEC source: 0001654954-24-014450 · section16.xml · nonDerivative · entry 1

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,159,006

SEC source: 0001654954-24-014150 · section16.xml · nonDerivative · entry 2

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,163,258

F1 · price: This transaction was executed in multiple trades at prices ranging from $1.528 to $1.621. The price set forth above reflects the weighted-average price per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected

SEC source: 0001654954-24-014150 · section16.xml · nonDerivative · entry 1

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,193,920

SEC source: 0001654954-24-014028 · section16.xml · nonDerivative · entry 2

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,207,691

F2 · price: This transaction was executed in multiple trades at prices ranging from $1.620 to $1.625. The price set forth above reflects the weighted-average price per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

SEC source: 0001654954-24-014028 · section16.xml · nonDerivative · entry 1

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,245,971

F1 · price: This transaction was executed in multiple trades at prices ranging from $1.487 to $1.610. The price set forth above reflects the weighted-average price per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected

SEC source: 0001654954-24-013826 · section16.xml · nonDerivative · entry 2

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,379,244

F2 · shares: This transaction was executed in multiple trades at prices ranging from $1.40 to $1.47. The price set forth above reflects the weighted-average price per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

SEC source: 0001654954-24-013826 · section16.xml · nonDerivative · entry 1

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,499,420

F1 · shares: This transaction was executed in multiple trades at prices ranging from $1.40 to $1.43. The price set forth above reflects the weighted-average price per share. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transactions were effected.

SEC source: 0001654954-24-013697 · section16.xml · nonDerivative · entry 2

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,537,252

SEC source: 0001654954-24-013697 · section16.xml · nonDerivative · entry 1

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,637,818

SEC source: 0001654954-24-013541 · section16.xml · nonDerivative · entry 2

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,638,280

SEC source: 0001654954-24-013541 · section16.xml · nonDerivative · entry 1

Nagar Yaacov · CIK 0001861377 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,666,195

SEC source: 0001654954-24-006781 · section16.xml · derivative · entry 2

Meyers Brad Ian · CIK 0002000149 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 231,000

Underlying: Common Stock, $0.001 par value · 231,000 shares

Expires 2034-05-16

F1 · security: The Restricted Stock Units (the "RSUs") and Option to Purchase Common Stock (the "Options) reported herein were granted to the Reporting Person on May 16, 2024 (the "Effective Date") pursuant to his Employment Agreement (the "Employment Agreement").

F3 · derivative.exercise_date: Under the Employment Agreement and subject to the terms of the Plan, the Reporting Person was granted up to 231,000 Options under the Plan, vesting as follows: (a) with respect to 115,500 Options, 25% shall vest on the first anniversary of the Effective Date, and the remaining 75% shall vest in equal increments over the following 36 months; and (b) with respect to the remaining 115,500 Options, each shall vest in accordance with the Company milestones set forth by the Issuer.

SEC source: 0001654954-24-006781 · section16.xml · derivative · entry 1

Meyers Brad Ian · CIK 0002000149 · Chief Operating Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 231,000

Underlying: Common Stock, $0.001 par value · 231,000 shares

Expires not disclosed

F1 · security: The Restricted Stock Units (the "RSUs") and Option to Purchase Common Stock (the "Options) reported herein were granted to the Reporting Person on May 16, 2024 (the "Effective Date") pursuant to his Employment Agreement (the "Employment Agreement").

F2 · derivative.exercise_date: Under the Employment Agreement and subject to the terms of the Issuer's 2021 Equity Incentive Plan (the "Plan"), the Reporting Person was granted up to 231,000 RSUs under the Plan, vesting as follows: (a) with respect to 115,500 RSUs, 25% shall vest on the first anniversary of the Effective Date (as defined in the Employment Agreement), and the remaining 75% shall vest in equal increments over the following 36 months; and (b) with respect to the remaining 115,500 RSUs, each shall vest in accordance with the Company milestones set forth by the Issuer.

F2 · derivative.expiration_date: Under the Employment Agreement and subject to the terms of the Issuer's 2021 Equity Incentive Plan (the "Plan"), the Reporting Person was granted up to 231,000 RSUs under the Plan, vesting as follows: (a) with respect to 115,500 RSUs, 25% shall vest on the first anniversary of the Effective Date (as defined in the Employment Agreement), and the remaining 75% shall vest in equal increments over the following 36 months; and (b) with respect to the remaining 115,500 RSUs, each shall vest in accordance with the Company milestones set forth by the Issuer.

SEC source: 0001654954-25-010349 · section16.xml · derivative · entry 3

Gannon Chris M · CIK 0001645284 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,250,000

Underlying: Common Stock, $0.0001 par value · 1,250,000 shares

Expires not disclosed

F1 · shares: The Restricted Stock Units (the "2024 RSUs") reported herein were granted to the Reporting Person on April 22, 2024, pursuant to his Employment Agreement (the "Employment Agreement"), dated as of April 19, 2024, and effective as of April 22, 2024 (the "Effective Date"). 250,000 of the shares subject to the 2024 RSUs vested on April 22, 2025, and the remaining 750,000 shares vest in equal increments on the last day of every month thereafter over the following 36 months, subject to the Reporting Person's continued employment with the Issuer on each vesting date. As of September 2, 2025, 333,333 shares subject to the 2024 RSUs were vested, and 666,667 shares are unvested.

F4 · derivative.exercise_date: Under the Employment Agreement and subject to the terms of the Issuer's 2021 Equity Incentive Plan (the "Plan"), the Reporting Person was granted up 1,250,000 RSUs under the Plan, that vest pursuant to certain milestones set forth by the Issuer.

F4 · derivative.expiration_date: Under the Employment Agreement and subject to the terms of the Issuer's 2021 Equity Incentive Plan (the "Plan"), the Reporting Person was granted up 1,250,000 RSUs under the Plan, that vest pursuant to certain milestones set forth by the Issuer.

F2 · balance_after: On May 1, 2024, the Reporting Person inadvertently filed a Form 3 that reported the RSUs. This filing serves to disclose the RSUs on a Form 4.

SEC source: 0001654954-25-010349 · section16.xml · nonDerivative · entry 1

Gannon Chris M · CIK 0001645284 · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,120,000

F1 · shares: The Restricted Stock Units (the "2024 RSUs") reported herein were granted to the Reporting Person on April 22, 2024, pursuant to his Employment Agreement (the "Employment Agreement"), dated as of April 19, 2024, and effective as of April 22, 2024 (the "Effective Date"). 250,000 of the shares subject to the 2024 RSUs vested on April 22, 2025, and the remaining 750,000 shares vest in equal increments on the last day of every month thereafter over the following 36 months, subject to the Reporting Person's continued employment with the Issuer on each vesting date. As of September 2, 2025, 333,333 shares subject to the 2024 RSUs were vested, and 666,667 shares are unvested.

F2 · balance_after: On May 1, 2024, the Reporting Person inadvertently filed a Form 3 that reported the RSUs. This filing serves to disclose the RSUs on a Form 4.

SEC source: 0001654954-23-007585 · section16.xml · nonDerivative · entry 2

Merrell Terry · CIK 0001890572 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 6,050,584

F2 · shares: This number represents a bona fide gift of 19,305 shares of the Issuer's common stock to Crossroads Community Church, Inc. ("Crossroads Community Church").

F3 · shares: Cross America, Upper Deer Creek Church and Crossroads Community Church are all tax-exempt religious organizations under Section 501(c)(3) of the Internal Revenue Code of 1986, as amended. The Reporting Person and MB Holding Company (as defined in Note 4 below) did not receive any proceeds or other compensation in connection with the gifts. The Reporting Person and MB Holding Company made the gifts as part of their biblical belief to follow Leviticus 27:30 as a 10% tithe of their aggregate holdings of the Issuer's common stock and their biblical belief to follow Malachi 3:10 as a 5% offering of their aggregate holdings of the Issuer's common stock.

F4 · ownership.nature: Shares held by MB Holding Company, Inc. which is co-owned by Mr. Merrell and over which Mr. Merrell shares investment control ("MB Holding Company").

SEC source: 0001654954-23-007585 · section16.xml · nonDerivative · entry 1

Merrell Terry · CIK 0001890572 · Director

10b5-1 filing: No plan indicated

Ownership: Indirect · See Note

Disclosed balance after: 6,069,889

F1 · shares: This aggregate number represents a bona fide gift of the following: (i) 524,222 shares of the Issuer's common stock to Cross America, Inc. ("Cross America") and (ii) 524,222 shares of the Issuer's common stock to Upper Deer Creek Church, Inc. ("Upper Deer Creek Church").

F3 · shares: Cross America, Upper Deer Creek Church and Crossroads Community Church are all tax-exempt religious organizations under Section 501(c)(3) of the Internal Revenue Code of 1986, as amended. The Reporting Person and MB Holding Company (as defined in Note 4 below) did not receive any proceeds or other compensation in connection with the gifts. The Reporting Person and MB Holding Company made the gifts as part of their biblical belief to follow Leviticus 27:30 as a 10% tithe of their aggregate holdings of the Issuer's common stock and their biblical belief to follow Malachi 3:10 as a 5% offering of their aggregate holdings of the Issuer's common stock.

F4 · ownership.nature: Shares held by MB Holding Company, Inc. which is co-owned by Mr. Merrell and over which Mr. Merrell shares investment control ("MB Holding Company").

SEC source: 0001654954-23-005022 · section16.xml · derivative · entry 2

Abitbol Israel David · CIK 0001909325 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Common Stock · 150,000 shares

Expires not disclosed

F2 · derivative.exercise_date: Pursuant to the Plan, this option to purchase common stock was granted on April 18, 2023 and vests as follows: (i) 50,000 shares on December 31, 2023 and (ii) the remaining 100,000 shares on an equal monthly installments (subject to rounding adjustments) on the last day of each month for 60 months beginning January 1, 2024, until the option is 100% vested. The closing price of the Issuer's common stock on April 18, 2023, the date of grant, was $3.56 per share. The Reporting Person must be an employee of the Issuer as of each vesting date. The option grant will expire on April 17, 2033. In the event of a Change of Control (as defined in the Plan), any unvested portion of the option grant will be immediately vested so long as the Reporting Person continues to be an employee of the Issuer at such time.

F2 · derivative.expiration_date: Pursuant to the Plan, this option to purchase common stock was granted on April 18, 2023 and vests as follows: (i) 50,000 shares on December 31, 2023 and (ii) the remaining 100,000 shares on an equal monthly installments (subject to rounding adjustments) on the last day of each month for 60 months beginning January 1, 2024, until the option is 100% vested. The closing price of the Issuer's common stock on April 18, 2023, the date of grant, was $3.56 per share. The Reporting Person must be an employee of the Issuer as of each vesting date. The option grant will expire on April 17, 2033. In the event of a Change of Control (as defined in the Plan), any unvested portion of the option grant will be immediately vested so long as the Reporting Person continues to be an employee of the Issuer at such time.

SEC source: 0001654954-23-005022 · section16.xml · nonDerivative · entry 1

Abitbol Israel David · CIK 0001909325 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 402,716

F1 · shares: Represents a restricted common stock award to the Reporting Person pursuant to the Company's 374Water Inc. 2021 Equity Incentive Plan (the "Plan") which vested immediately.

SEC source: 0001654954-23-005020 · section16.xml · derivative · entry 2

Nagar Yaacov · CIK 0001861377 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,000

Underlying: Common Stock · 150,000 shares

Expires not disclosed

F2 · derivative.exercise_date: Pursuant to the Plan, this option to purchase common stock was granted on April 18, 2023 and vests as follows: (i) 50,000 shares on December 31, 2023 and (ii) the remaining 100,000 shares in equal monthly installments (subject to rounding adjustments) on the last day of each month for 60 months beginning January 1, 2024, until the option is 100% vested. The closing price of the Issuer's common stock on April 18, 2023, the date of grant, was $3.56 per share. The Reporting Person must be an employee of the Issuer as of each vesting date. The option grant will expire on April 17, 2033. In the event of a Change of Control (as defined in the Plan), any unvested portion of the option grant will be immediately vested so long as the Reporting Person continues to be an employee of the Issuer at such time.

F2 · derivative.expiration_date: Pursuant to the Plan, this option to purchase common stock was granted on April 18, 2023 and vests as follows: (i) 50,000 shares on December 31, 2023 and (ii) the remaining 100,000 shares in equal monthly installments (subject to rounding adjustments) on the last day of each month for 60 months beginning January 1, 2024, until the option is 100% vested. The closing price of the Issuer's common stock on April 18, 2023, the date of grant, was $3.56 per share. The Reporting Person must be an employee of the Issuer as of each vesting date. The option grant will expire on April 17, 2033. In the event of a Change of Control (as defined in the Plan), any unvested portion of the option grant will be immediately vested so long as the Reporting Person continues to be an employee of the Issuer at such time.

SEC source: 0001654954-23-005020 · section16.xml · nonDerivative · entry 1

Nagar Yaacov · CIK 0001861377 · Director · Chief Executive Officer · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,710,752

F1 · shares: Represents a restricted common stock award to the Reporting Person pursuant to the Issuer's 374Water Inc. 2021 Equity Incentive Plan (the "Plan") which was granted on April 18, 2023 and vested immediately.