374Water insider buys 450,000 shares in open-market trade

374Water Inc. reported an insider stock purchase by its interim CEO and director.

Rhea-AI Filing Summary

374Water Inc. reported an insider stock purchase by its interim CEO and director. On 12/16/2025, a reporting person serving as both a director and Interim CEO acquired 450,000 shares of 374Water Inc. common stock in an open market transaction coded "P" for purchase.

The shares were bought at a price of $0.2311 per share. After this transaction, the reporting person beneficially owned a total of 1,055,723 common shares, held directly. The filing is presented as a single‑person Form 4, highlighting this one notable equity purchase and confirming direct ownership status following the trade.

Insider Trade Summary

Net Buyer: 450,000 shares

Net Buy 1 txn

Insider Jones Stephen J

Role Interim CEO

Bought 450,000 shs ($104K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	450,000	$0.2311	$104K

Holdings After Transaction: Common Stock — 1,055,723 shares (Direct)

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did 374Water Inc. (SCWO) disclose in this Form 4?

The filing shows that a reporting person who is both a director and the Interim CEO of 374Water Inc. purchased 450,000 shares of the company’s common stock in an open market transaction on 12/16/2025.

At what price were the 374Water Inc. (SCWO) shares purchased in the reported transaction?

The 450,000 common shares were purchased at a price of $0.2311 per share, as disclosed in the Form 4 transaction table.

How many 374Water Inc. (SCWO) shares does the insider own after this transaction?

Following the reported purchase, the insider beneficially owned 1,055,723 shares of 374Water Inc. common stock, with the ownership form reported as Direct (D).

What is the insider’s relationship to 374Water Inc. (SCWO)?

The reporting person is identified as both a Director and an Officer, holding the title of Interim CEO of 374Water Inc.

Does this 374Water Inc. (SCWO) Form 4 report any derivative securities?

The filing includes a section for Table II – Derivative Securities, but no specific derivative transactions or holdings are listed in the provided content.

Was this 374Water Inc. (SCWO) Form 4 filed by more than one reporting person?

No. The filing indicates that it is a Form filed by One Reporting Person, and it is signed /s/ Stephen Jones with a date of 12/16/2025.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 12/17/2025 - 05:14 PM Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

X

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Jones Stephen J

(Last) (First) (Middle)

374 WATER INC.

100 SOUTHCENTER COURT, SUITE 200

(Street)

MORRISVILLE NC 27560

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
374Water Inc. [ SCWO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Interim CEO

3. Date of Earliest Transaction (Month/Day/Year)
12/16/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/16/2025		P		450,000	A	$0.2311	1,055,723	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Stephen Jones	12/16/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.