# EDGAR Filing Document

**Accession Number:** 0000933972
**File Stem:** 0001903596-26-000180
**Filing Date:** 2026-4
**Character Count:** 6857
**Document Hash:** 928fbafaace8d1222952d50a08fdc616
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001903596-26-000180.hdr.sgml**: 20260430

**ACCESSION NUMBER**: 0001903596-26-000180

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

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260430

**DATE AS OF CHANGE**: 20260430

**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:** 26926817

**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

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**(Amendment No. 3)**

**374Water Inc.**

*(Name of Issuer)*

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

*(Title of Class of Securities)*

**—**

*(CUSIP Number)*

**Yaacov Nagar**<br>600 Park Offices Dr.<br>Suite 300<br>Durham NC 27713<br>(919) 672-3095

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

**04/30/2026**

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

| **CUSIP No.** | **—** |

---

| | | | |
|:--|:--|:--|:--|
| 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>**1771263.00** |
| 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>**1771263.00** |
| 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>**1771263.00** | Aggregate amount beneficially owned by each reporting person<br>**1771263.00** | |
| 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>**10.16%** | Percent of class represented by amount in Row (11)<br>**10.16%** | |
| 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 17,441,368 share of the Issuer's common stock outstanding as of March 27, 2026, as reported in the Issuer's fiscal year ended December 31, 2025, on form 10-K filed on March 30, 2026, after giving effect to the Issuer's 1-for-10 reverse 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

The following constitutes Amendment No. 2 to the Schedule 13D filed by the undersigned (this "Amendment No. 3"). This Amendment No. 3 was required as the result of dispossition of 1,440,000 Shares by the Reporting Person to irrevocable trust created for the benefit of other individuals and amends the Schedule 13D as specifically set forth herein.

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

**(a)**
See rows (11) and (13) of the cover page of this Schedule 13D/A for the number of shares of Common Stock and percentage of the Common Stock benefically owned by the Reporting Person. The percentage is based on 17,441,368 shares of the Issuer's common stock outstanding as of March 27, 2026, as reported in the Issuer's fiscal year report ended December 31, 2025, on form 10-K filed on March 30, 2026.

**(b)**
See rows (7) through (10) of the cover page to this Schedule 13D/A for the number of shares of Common Stock the Reporting Person has the sole or shared power to vote or direct the vote and sole or shared power to dispose or to direct the disposition.

**(c)**
Since the filing the Schedule 13 D/A on January 23, 2026, there have been no transactions in the Shares by the Reporting Person during the past 90 days in the open market:

The Reporting Person has effected the following transactions in the Common Stock, which occurred through private transfers of the Shares to irrevocable trust created for the benefit of other individuals and did not involve any consideration. On April 30, 2026, the Reporting Person trasferred 720,000 Shares to the independent trustee of the Future Water I irrevocable trust, and another 720,000 Shares to the independent trustee of the Future Water II irrevocable trust. The Reporting Person is neither a beneficiary nor trustee of either irrevocable trust. As such, the Reporting Person has no power to voter or transfer the Shares.

### 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:** 04/30/2026