Director Charles Weiser reports 374Water Inc. (SCWO) share and warrant holdings

Rhea-AI Filing Summary

374Water Inc. director reports initial share and warrant holdings. Charles Maurice Weiser, a director of 374Water Inc., reports direct ownership of 13,859 shares of common stock. He also has indirect beneficial ownership of 7,533 shares held by his spouse and 1,650 shares held jointly with his spouse. In addition, he reports indirect ownership of warrants to purchase 1,200 shares of common stock at an exercise price of $1.9352 per share, which became exercisable on November 18, 2024 and expire on November 17, 2029.

Insider Trade Summary

4 transactions reported

Mixed 4 txns

Insider Weiser Charles Maurice

Role Director

Type	Security	Shares	Price	Value
holding	Warrants (right to buy)	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--
holding	Common Stock	--	--	--

Holdings After Transaction: Warrants (right to buy) — 1,200 shares (Indirect, Shares held jointly with Reporting Person's spouse.); Common Stock — 13,859 shares (Direct); Common Stock — 7,533 shares (Indirect, By spouse)

Footnotes (1)

Understanding Insider Trading Forms →

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Weiser Charles Maurice

(Last) (First) (Middle)

C/O 374WATER INC.

100 SOUTHCENTER COURT, SUITE 200

(Street)

MORRISVILLE NC 27560

(City) (State) (Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
12/29/2025

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

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

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

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	13,859	D
Common Stock	7,533	I	By spouse
Common Stock	1,650	I	Shares held jointly with Reporting Person's spouse.

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Warrants (right to buy)	11/18/2024	11/17/2029	Common Stock	1,200	$1.9352	I	Shares held jointly with Reporting Person's spouse.

Explanation of Responses:

	/s/ Charles Weiser	01/30/2026
	** 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 5 (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.