[Form 4] 374Water Inc. Insider Trading Activity

Rhea-AI Filing Summary

374Water Inc. (SCWO) director Deanna Rene Estes purchased 30,000 shares of the company's common stock at a weighted-average price of $0.2902 per share, increasing her beneficial holdings to 106,500 shares. The reported purchase was executed in multiple transactions at prices ranging from $0.2849 to $0.2903, and the reporting person offered to provide details of the per-trade quantities on request. The filing indicates the transaction was reported on a Form 4 and that the reporting person is a director filing individually.

Positive

• Director purchased shares, signaling alignment between management and shareholders
• 30,000 shares acquired at a disclosed weighted-average price of $0.2902
• Beneficial ownership increased to 106,500 shares
• Price range disclosed ($0.2849–$0.2903) and offer to provide per-trade detail supports transparency

Negative

• None.

Insights

Securities Analyst

TL;DR: Director purchase of 30,000 shares at ~$0.29 raises insider ownership to 106,500 shares, a modest insider buy signal.

The acquisition of 30,000 common shares at a weighted-average price of $0.2902 represents a direct purchase by a director, which can be interpreted as a alignment of management interests with shareholders. The filing discloses a price range ($0.2849–$0.2903) and the reporter's willingness to provide per-trade detail, supporting transparency. The absolute size of the holding (106,500 shares) and the per-share price suggest the transaction is modest in dollar terms; the filing does not disclose total outstanding shares or percentage ownership, so the proportional impact on control or dilution cannot be assessed from this Form 4 alone.

Corporate Governance Expert

TL;DR: Insider purchase by a director is governance-positive for signaling, but materiality is limited without ownership percentage.

A director reporting an open-market purchase typically signals confidence in the company and aligns incentives with shareholders. The Form 4 clearly marks the reporting person as a director and shows direct ownership form. However, the filing omits contextual metrics such as total shares outstanding or percentage ownership post-transaction, limiting assessment of how materially this changes governance dynamics. No derivative positions or sales were reported on this form.

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
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hours per response:			0.5

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^*

Estes Deanna Rene

(Last) (First) (Middle)

C/O 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
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
08/26/2025

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	08/26/2025		P		30,000	A	$0.2902(1)	106,500	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:

1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.2849 to $0.2903, inclusive. The reporting person undertakes to provide to 374Water Inc., any security holder of 374Water Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in footnote (1) to this Form 4.

	/s/ Deanna Rene Estes	08/27/2025
	** 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.

FAQ

What transaction did Deanna Rene Estes report for 374Water Inc. (SCWO)?

The director reported purchasing 30,000 shares of common stock in multiple transactions at a weighted-average price of $0.2902 per share.

How many shares does Deanna Rene Estes beneficially own after the purchase?

Following the reported transaction, the filing shows beneficial ownership of 106,500 shares.

What price range did the purchases occur at according to the Form 4?

The purchases occurred at prices ranging from $0.2849 to $0.2903 per share, inclusive, as disclosed in the footnote.

Does the Form 4 indicate the reporting person's role at 374Water Inc. (SCWO)?

Yes, the filing indicates the reporting person is a director and the Form was filed by one reporting person.

Are any derivative securities reported in this Form 4?

No derivative securities are reported in Table II of this Form 4; only non-derivative common stock purchases are disclosed.