North Star Investment Management Corp. - 31 Dec 2025 SCHEDULE 13G/A Report for Acme United Corporation Common Stock. $2.50 par value (ACU)

Filing Manager: North Star Investment Management Corp.
Reporting Manager: North Star Investment Management Corporation
Security: Acme United Corporation Common Stock. $2.50 par value
Symbol: ACU
Shares outstanding: 3,804,578 shares
Disclosed Ownership: 252,624 shares
Ownership: 6.6%
Form type: SCHEDULE 13G/A
Filing time: 02 Feb 2026, 12:34:00 UTC
Date of event: 31 Dec 2025
Previous filing: 07 Jan 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
North Star Investment Management Corporation	6.6%	252,624	143,800	108,824	/s/ Andrew Eisenberg	Chief Compliance Officer