# EDGAR Filing Document

**Accession Number:** 0001861377
**File Stem:** 0001654954-26-000099
**Filing Date:** 2026-1
**Character Count:** 41233
**Document Hash:** 626697194b94ae2275760c9f38d2b601
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001654954-26-000099.hdr.sgml**: 20260105

**ACCESSION NUMBER**: 0001654954-26-000099

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D/A

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20260105

**DATE AS OF CHANGE**: 20260105

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** 374Water Inc.
- **CENTRAL INDEX KEY:** 0000933972
- **STANDARD INDUSTRIAL CLASSIFICATION:** MOTORS & GENERATORS [3621]
- **ORGANIZATION NAME:** 04 Manufacturing
- **EIN:** 880271109
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-49830
- **FILM NUMBER:** 26508333

**BUSINESS ADDRESS:**
- **STREET 1:** 701 W. MAIN STREET
- **STREET 2:** SUITE 410
- **CITY:** DURHAM
- **STATE:** NC
- **ZIP:** 27701
- **BUSINESS PHONE:** 440-609-9677

**MAIL ADDRESS:**
- **STREET 1:** 3710 SHANNON RD #51877
- **STREET 2:** SUITE 410
- **CITY:** DURHAM
- **STATE:** NC
- **ZIP:** 27717

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** POWERVERDE, INC.
- **DATE OF NAME CHANGE:** 20080820

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** VYREX CORP
- **DATE OF NAME CHANGE:** 19951206
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Nagar Yaacov
- **CENTRAL INDEX KEY:** 0001861377

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D/A

**MAIL ADDRESS:**
- **STREET 1:** 3710 SHANNON ROAD
- **STREET 2:** SUITE 51877
- **CITY:** DURHAM
- **STATE:** NC
- **ZIP:** 27717

## Ex-3

**EXHIBIT 3**

**JOINT FILING AGREEMENT**

Pursuant to Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned agree that the Statement on Schedule 13D, and any subsequent amendments thereto, to which this exhibit is attached is filed on behalf of each of them in the capacities set forth below with respect to the common stock of 374Water Inc., $0.001 par value, beneficially owned by each of them.

IN WITNESS WHEREOF, the undersigned hereby execute this Joint Filing Agreement as of the 5<sup>th</sup> day of January, 2026.

---

| | |
|:---|:---|
| Yaacov Nagar | Yaacov Nagar |
| Signature:  | /s/ Yaacov Nagar |
| Name/Title:  | Yaacov Nagar |
| Richard H. Davis | Richard H. Davis |
| Signature:  | /s/ Richard H. Davis |
| Name/Title:  | Richard H. Davis |
| Stephen H. McKnight | Stephen H. McKnight |
| Signature:  | /s/ Stephen H. McKnight |
| Name/Title:  | Stephen H. McKnight |
| Robert F. Ehrman Declaration of Trust as Amended and Restated on 10/6/2022 | Robert F. Ehrman Declaration of Trust as Amended and Restated on 10/6/2022 |
| Signature:  | /s/ Marlys A. Ehrman |
| Name/Title:  | Marlys A. Ehrman, Trustee |
| William R. Greenfield | William R. Greenfield |
| Signature:  | /s/ William R. Greenfield |
| Name/Title:  | William R. Greenfield |

---

---

| | |
|:---|:---|
| Ligi Investments LLLP | Ligi Investments LLLP |
| By:  | Ligi Management LLC, |
|  | its general partner |

---

---

| | |
|:---|:---|
| Signature:  | /s/ Jennifer Ligeti |
| Name/Title:  | Jennifer Ligeti, Manager |
| Date:  | 1/5/2026 |

---

---

| | |
|:---|:---|
| Kevin J. Lockwood | Kevin J. Lockwood |
| Signature:  | /s/ Kevin J. Lockwood |
| Name/Title:  | Kevin J. Lockwood |

---

---

| | |
|:---|:---|
| John McClure | John McClure |
| Signature:  | /s/ John McClure |
| Name/Title:  | John McClure |
| Stephen H. McKnight Jr. | Stephen H. McKnight Jr. |
| Signature:  | /s/ Stephen H. McKnight Jr. |
| Name/Title:  | Stephen H. McKnight Jr. |
| Bryce Allan Johnson | Bryce Allan Johnson |
| Signature:  | /s/ Bryce Allan Johnson |
| Name/Title:  | Bryce Allan Johnson  |
| Christopher L. Tucker | Christopher L. Tucker |
| Signature:  | /s/ Christopher L. Tucker |
| Name/Title:  | Christopher L. Tucker |

---

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 2)**

**374Water Inc**

*(Name of Issuer)*

**Common Stock, $0.001 par value per share**

*(Title of Class of Securities)*

**88583P203**

*(CUSIP Number)*

**Robert B. Macaulay**<br>Carlton Fields, P.A.<br>700 NW 1st Avenue<br>Miami FL 33136<br>(305) 530-0050

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**12/31/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **88583P203** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Yaacov Nagar** | Name of reporting person<br>**Yaacov Nagar** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**3211263.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**3211263.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**3211263.00** | Aggregate amount beneficially owned by each reporting person<br>**3211263.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**19.0%** | Percent of class represented by amount in Row (11)<br>**19.0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** ________________________
 (1)  The percentage is based on 16,924,880 shares of the Issuer's common stock outstanding as of October 24, 2025, as reported in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.

| **CUSIP No.** | **88583P203** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Richard H. Davis** | Name of reporting person<br>**Richard H. Davis** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**390379.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**17053.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**390379.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**17053.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**407432.00** | Aggregate amount beneficially owned by each reporting person<br>**407432.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**2.4%** | Percent of class represented by amount in Row (11)<br>**2.4%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** ________________________
 (1)  The percentage is based on 16,924,880 shares of the Issuer's common stock outstanding as of October 24, 2025, as reported in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.
 (2)  For rows 7 and 9, shares reported consist of 114,379 shares of common stock, 6,000 shares issuable upon the exercise outstanding warrants exercisable within 60 days, and options to purchase 270,000 shares of common stock that are either exercisable or will become exercisable within 60 days.
 (3)  For rows 8 and 10, shares reported consist of 16,053 shares held by the reporting person's spouse and 1,000 shares held by Darby Shore Management Inc., a Florida corporation of which the reporting person is an officer, director, and 25% shareholder and may be deemed to have voting and investment power over the shares held by such corporation.

| **CUSIP No.** | **88583P203** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Stephen H. McKnight** | Name of reporting person<br>**Stephen H. McKnight** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**192847.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**192847.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**192847.00** | Aggregate amount beneficially owned by each reporting person<br>**192847.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**1.1%** | Percent of class represented by amount in Row (11)<br>**1.1%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** ________________________
 (1)  The percentage is based on 16,924,880 shares of the Issuer's common stock outstanding as of October 24, 2025, as reported in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.
 (2) Shares beneficially owned include 12,000 shares issuable upon the exercise of warrants exercisable within 60 days and 1,500 shares held by the Stephen H. McKnight Revocable Trust, of which the reporting person is the sole trustee.

| **CUSIP No.** | **88583P203** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Robert F. Ehrman Declaration of Trust as Amended and Restated on 10/6/2022** | Name of reporting person<br>**Robert F. Ehrman Declaration of Trust as Amended and Restated on 10/6/2022** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**FLORIDA** | Citizenship or place of organization<br>**FLORIDA** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**70871.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**70871.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**70871.00** | Aggregate amount beneficially owned by each reporting person<br>**70871.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.4%** | Percent of class represented by amount in Row (11)<br>**0.4%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** __________________________
 (1)  The percentage is based on 16,924,880 shares of the Issuer's common stock outstanding as of October 24, 2025, as reported in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.

| **CUSIP No.** | **88583P203** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**William R. Greenfield** | Name of reporting person<br>**William R. Greenfield** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**15000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**28834.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**15000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**28834.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**43834.00** | Aggregate amount beneficially owned by each reporting person<br>**43834.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.3%** | Percent of class represented by amount in Row (11)<br>**0.3%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** ________________________
 (1)  The percentage is based on 16,924,880 shares of the Issuer's common stock outstanding as of October 24, 2025, as reported in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.
 (2)  The 28,834 shares are held by the Greenfield Irrevocable Family Trust, of which Mr. Greenfield's wife, Margaret Greenfield, is the sole trustee and beneficiary.

| **CUSIP No.** | **88583P203** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Bryce Allan Johnson** | Name of reporting person<br>**Bryce Allan Johnson** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**410086.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**410086.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**410086.00** | Aggregate amount beneficially owned by each reporting person<br>**410086.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**2.4%** | Percent of class represented by amount in Row (11)<br>**2.4%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** _________________________
 (1)  The percentage is based on 16,924,880 shares of the Issuer's common stock outstanding as of October 24, 2025, as reported in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.

| **CUSIP No.** | **88583P203** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Ligi Investments LLLP** | Name of reporting person<br>**Ligi Investments LLLP** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**WC** | Source of funds (See Instructions)<br>**WC** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**FLORIDA** | Citizenship or place of organization<br>**FLORIDA** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**48000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**48000.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**48000.00** | Aggregate amount beneficially owned by each reporting person<br>**48000.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.3%** | Percent of class represented by amount in Row (11)<br>**0.3%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** ___________________________
 (1)  The percentage is based on 16,924,880 shares of the Issuer's common stock outstanding as of October 24, 2025, as reported in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.
 (2)  Jennifer P. Ligeti is the Manager of General Partner of Ligi Investments LLLP and has voting and investment power over the shares owned thereby.

| **CUSIP No.** | **88583P203** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Kevin J. Lockwood** | Name of reporting person<br>**Kevin J. Lockwood** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**101000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**101000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**101000.00** | Aggregate amount beneficially owned by each reporting person<br>**101000.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.6%** | Percent of class represented by amount in Row (11)<br>**0.6%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** _________________________
 (1)  The percentage is based on 16,924,880 shares of the Issuer's common stock outstanding as of October 24, 2025, as reported in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.

| **CUSIP No.** | **88583P203** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**John McClure** | Name of reporting person<br>**John McClure** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**41000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**41000.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**41000.00** | Aggregate amount beneficially owned by each reporting person<br>**41000.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.2%** | Percent of class represented by amount in Row (11)<br>**0.2%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** __________________________
 (1)  The percentage is based on 16,924,880 shares of the Issuer's common stock outstanding as of October 24, 2025, as reported in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.
 (2) Shares beneficially owned include 6,500 shares held by the Georgia Marie McClure Revocable Trust dated 12/20/1996, of which the reporting person is the sole trustee.

| **CUSIP No.** | **88583P203** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Stephen H. McKnight Jr.** | Name of reporting person<br>**Stephen H. McKnight Jr.** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**PF** | Source of funds (See Instructions)<br>**PF** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**86043.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**86043.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**86043.00** | Aggregate amount beneficially owned by each reporting person<br>**86043.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.5%** | Percent of class represented by amount in Row (11)<br>**0.5%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** _________________________
 (1)  The percentage is based on 16,924,880 shares of the Issuer's common stock outstanding as of October 24, 2025, as reported in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.

| **CUSIP No.** | **88583P203** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Christopher L. Tucker** | Name of reporting person<br>**Christopher L. Tucker** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**X1** | Citizenship or place of organization<br>**X1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**17964.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**17964.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**17964.00** | Aggregate amount beneficially owned by each reporting person<br>**17964.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**0.1%** | Percent of class represented by amount in Row (11)<br>**0.1%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

**Comment for Reporting Person:** ___________________________
 (1)  The percentage is based on 16,924,880 shares of the Issuer's common stock outstanding as of October 24, 2025, as reported in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Common Stock, $0.001 par value per share

**(b) Name of Issuer:**
374Water Inc

**(c) Address of Issuer's Principal Executive Offices:**
100 Southcenter Court, Suite 200, Morrisville, NC, 27560

Explanatory Note
 
 This Amendment No. 2 to the statement on beneficial ownership on Schedule 13D (this "Amendment No. 2") amends and supplements the information set forth in the Statement on Schedule 13D filed by the Reporting Persons with the SEC on December 12, 2025 (the "Original Schedule 13D"), as amended by Amendment No. 1 thereto filed on December 16, 2026 (as amended, the "Schedule 13D"). This Amendment No. 2 is being filed to reflect, among other things, the addition of the following holders as Reporting Persons: Robert F. Ehrman Declaration of Trust as Amended and Restated on 10/6/2022, William R. Greenfield, Ligi Investments LLLP, Kevin J. Lockwood, John McClure, Stephen H. McKnight Jr., Bryce Allan Johnson, and Christopher L. Tucker. All share information in this Amendment No. 2 reflects the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025. All capitalized terms contained herein but not otherwise defined shall have the meanings ascribed to such terms in the Original Schedule 13D. Except as specifically provided herein, this Amendment No. 2 does not modify any of the information previously reported in the Original Schedule 13D.

**Item 4. Purpose of Transaction**

Item 4 of the Schedule 13D is hereby amended and supplemented as follows:
 
 Each of the Ehrman Trust, Ligi Investments LLLP, and Messrs. Greenfield, Lockwood, McClure, and Johnson acquired the Shares reported herein for investment purposes. Mr. McKnight Jr. acquired his Shares as compensation for advisory services provided, as compensation for his previous employment with the Issuer, and as a gift to Mr. McKnight Jr. from Mr. McKnight. Mr. Tucker acquired his Shares as a founder of the Issuer's original predecessor company. Each of the Reporting Persons in the preceding sentence have expressed their interest in supporting Messrs. Nagar, Davis, and McKnight in identifying qualified candidates to fill the existing Board vacancies.
 
 In addition, the Reporting Persons believe that the Issuer would benefit from sources of capital other than the recent transactions pursued by the Issuer, such as the at-the-market sales agreement entered into on December 23, 2025. The Reporting Persons are exploring alternative forms of financing that the Reporting Persons believe will better serve the interests of the Issuer and its shareholders as a source of capital to fund the Issuer's business and operations. Such alternatives may include, without limitation, the issuance of equity, debt, or convertible securities, or other structured financing arrangements involving the Reporting Persons, their affiliates, or third-party investors. No definitive agreements have been reached, and there can be no assurance that any financing transaction will be consummated.
 
 The addition of the Ehrman Trust, Ligi Investments LLLP, and Messrs. Greenfield, Lockwood, McClure, McKnight Jr., Johnson, and Tucker as Reporting Persons does not constitute the adoption of any new plans or proposals beyond those previously disclosed in this Schedule 13D. The Reporting Persons may continue to engage in discussions with the Issuer's board of directors and management and may take such actions as they deem appropriate to protect or enhance the value of their respective investments.
 
 The Reporting Persons do not have any current plan or proposal that relates to or would result in any of the matters described in Items 4(a) - (j) of Schedule 13D, except as described in this Schedule 13D or as would occur upon, in connection with completion of, or following, any of the actions described in this Schedule 13D.

**Item 5. Interest in Securities of the Issuer**

**(a)**
The information contained in rows 11 and 13 of the cover pages of this Schedule 13D (including the accompanying comments thereto) is incorporated herein by reference. 
 
 Through their respective beneficial ownership of the Shares reported above, the Reporting Persons have beneficial ownership over 4,630,343 Shares, which represents approximately 26.9% of the Issuer's outstanding Shares, based on 16,924,880 Shares outstanding as of October 24, 2025, as disclosed in the Issuer's definitive proxy statement on Schedule 14A filed on November 3, 2025, after giving effect to the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025.
 
 Each Reporting Person expressly disclaims beneficial ownership in the securities reported herein except to the extent such Reporting Person actually exercises voting or dispositive power with respect to such securities.

**(b)**
The information contained in rows 7 through 10 of the cover pages of this Schedule 13D (including the accompanying comments thereto) is incorporated herein by reference.

**(c)**
On December 29, 2025, Mr. McKnight purchased 3,153 Shares in an open market transaction at a price of $1.79 per share. The purchase price reflects the effect of the Issuer's 1-for-10 reverse stock split that took effect on December 26, 2025. Except as set forth above, there have been no transactions in the Shares by the Reporting Persons during the past 60 days.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

Item 6 of the Schedule 13D is hereby amended and supplemented as follows: 
 
 The information in Item 4 of this Amendment No. 2 is hereby incorporated by reference.
 
 Except as otherwise described in this Schedule 13D, (i) there are no contracts, arrangements, understandings, or relationships (legal or otherwise) among the persons named in Item 2 and between such persons and any person with respect to any securities of the Issuer, including but not limited to transfer or voting of any of the securities, finder's fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or loss, or the giving or withholding of proxies and, (ii) other than standard default and similar provisions contained in loan agreements, none of the securities of the Issuer beneficially owned by any Reporting Person are pledged or otherwise subject to a contingency the occurrence of which would give another person voting or investment power over such securities.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Yaacov Nagar

**Signature:** /s/ Yaacov Nagar

**Name/Title:** Yaacov Nagar

**Date:** 01/05/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Richard H. Davis

**Signature:** /s/ Richard H. Davis

**Name/Title:** Richard H. Davis

**Date:** 01/05/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Stephen H. McKnight

**Signature:** /s/ Stephen H. McKnight

**Name/Title:** Stephen H. McKnight

**Date:** 01/05/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Robert F. Ehrman Declaration of Trust as Amended and Restated on 10/6/2022

**Signature:** /s/ Marlys A. Ehrman

**Name/Title:** Marlys A. Ehrman, Trustee

**Date:** 01/05/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** William R. Greenfield

**Signature:** /s/  William R. Greenfield

**Name/Title:** William R. Greenfield

**Date:** 01/05/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Bryce Allan Johnson

**Signature:** /s/ Bryce Allan Johnson

**Name/Title:** Bryce Allan Johnson

**Date:** 01/05/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Ligi Investments LLLP

**Signature:** /s/ Jennifer Ligeti

**Name/Title:** Jennifer Ligeti, Manager

**Date:** 01/05/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Kevin J. Lockwood

**Signature:** /s/ Kevin J. Lockwood

**Name/Title:** Kevin J. Lockwood

**Date:** 01/05/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** John McClure

**Signature:** /s/ John McClure

**Name/Title:** John McClure

**Date:** 01/05/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Stephen H. McKnight Jr.

**Signature:** /s/ Stephen H. McKnight Jr.

**Name/Title:** Stephen H. McKnight Jr.

**Date:** 01/05/2026

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Christopher L. Tucker

**Signature:** /s/ Christopher L. Tucker

**Name/Title:** Christopher L. Tucker

**Date:** 01/05/2026