Stephen H. McKnight - 22 Jan 2026 SCHEDULE 13D/A Report for 374Water Inc. Common Stock, $0.001 par value per share (SCWO)

Filing Manager
Stephen H. McKnight
Reporting Manager
Bryce Allan Johnson
Security
374Water Inc. Common Stock, $0.001 par value per share
Symbol
SCWO
Shares outstanding
17,086,917 shares
Disclosed Ownership
410,086 shares
Ownership
2.4%
Form type
SCHEDULE 13D/A
Filing time
12 Mar 2026, 17:20:52 UTC
Date of event
22 Jan 2026
SEC
View on sec.gov

Reporting Managers (10)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Richard H. Davis 2.4% 407,432 390,379 17,053 /s/ Richard H. Davis Richard H. Davis
Stephen H. McKnight 1.2% 203,500 196,000 7,500 /s/ Stephen H. McKnight Stephen H. McKnight 0002114378
Robert F. Ehrman Declaration of Trust as Amended and Restated on 10/6/2022 0.4% 70,867 0 70,867 /s/ Marlys A. Ehrman Marlys A. Ehrman, Trustee
William R. Greenfield 0.3% 43,834 15,000 28,834 /s/ William R. Greenfield William R. Greenfield
Bryce Allan Johnson 2.4% 410,086 410,086 0 /s/ Bryce Allan Johnson Bryce Allan Johnson
Ligi Investments LLLP 0.3% 48,000 0 48,000 /s/ Jennifer Ligeti Jennifer Ligeti, Manager
Kevin J. Lockwood 0.6% 101,000 101,000 0 /s/ Kevin J. Lockwood Kevin J. Lockwood
John McClure 0.2% 41,000 41,000 0 /s/ John McClure John McClure
Stephen H. McKnight Jr. 0.5% 86,043 86,043 0 /s/ Stephen H. McKnight Jr. Stephen H. McKnight Jr.
Christopher L. Tucker 0.1% 17,964 17,964 0 /s/ Christopher L. Tucker Christopher L. Tucker