Brian S. Olschan - 27 Feb 2026 Form 4 Insider Report for ACME UNITED CORP (ACU)

Role: President and COO, Director
Signature: /s/Brian S. Olschan
Issuer symbol: ACU
Transactions as of: 27 Feb 2026
Net transactions value: +$207,200
Form type: 4
Filing time: 03 Mar 2026, 16:30:20 UTC
Previous filing: 01 Aug 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
OLSCHAN BRIAN S	President and COO, Director	1 WATERVIEW DRIVE, SHELTON	/s/Brian S. Olschan	03 Mar 2026	0001213244

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ACU	Common Stock	Options Exercise	$373,800	+15,000	+36%	$24.92	56,209	27 Feb 2026	Direct
transaction	ACU	Common Stock	Disposed to Issuer	$688,200	-15,000	-27%	$45.88	41,209	27 Feb 2026	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ACU	Employee Stock Option	Options Exercise	$373,800	-15,000	-5.8%	$24.92	241,700	27 Feb 2026	Common Stock	15,000	$24.92	Direct
transaction	ACU	Employee Stock Option	Award	$895,400	+20,000	+8.3%	$44.77	261,700	02 Mar 2026	Common Stock	20,000	$44.77	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The exercise of the subject option was effected on a net cash settlement basis in a transaction directly with the issuer not involving the actual issuance of any shares of the underlying common stock.
F2	5,000 shares will vest on March 2, 2027. 5,000 shares will vest on March 2, 2028. 5,000 shares will vest on March 2, 2029. 5,000 shares will vest on March 2, 2030.