[Form 4] Acme United Corporation Insider Trading Activity

Rhea-AI Filing Summary

Brian Barker, a director of Acme United Corp (ACU), reported a derivative-to-equity transaction on 08/12/2025. The filing shows the exercise/acquisition of 2,500 shares underlying an employee stock option with an indicated price of $43.4 per share. After the reported transaction, Mr. Barker beneficially owned 19,000 shares. The Form 4 is signed by Brian Barker on 08/14/2025 and identifies his address in Shelton, CT.

Positive

• Insider exercise disclosed demonstrating compliance with Section 16 reporting requirements
• Reported beneficial ownership provided: filing states 19,000 shares held following the transaction

Negative

• None.

Insights

Securities Analyst

TL;DR: Director exercised options for 2,500 shares at $43.4, increasing reported beneficial ownership to 19,000 shares.

The Form 4 discloses a non-derivative position resulting from the exercise of an employee stock option on 08/12/2025 for 2,500 shares with an indicated per-share price of $43.4. As reported, the insider now beneficially owns 19,000 shares. This is a routine Section 16 disclosure of insider activity by a director and does not by itself indicate broader corporate events or material changes to capitalization.

Corporate Governance Specialist

TL;DR: Routine insider exercise reported; disclosure meets Section 16 reporting requirements and shows signed Form 4.

The filing identifies Brian Barker as the reporting person and a director, includes the transaction and resulting ownership, and bears a manual signature dated 08/14/2025. The record follows standard reporting practice for option exercises converting to common stock. No other transactions, amendments, or additional beneficial holders are reported.

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
Estimated average burden
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^*

BARKER BRIAN

(Last) (First) (Middle)

1 WATERVIEW DRIVE

(Street)

SHELTON CT 06484

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ACME UNITED CORP [ ACU ]

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)
08/12/2025

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

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
Employee Stock Option	$43.4	08/12/2025	08/12/2025	A		2,500		08/13/2025	08/12/2025	Common Stock	2,500	$43.4	19,000	D

Explanation of Responses:

	/s/ Brian Barker	08/14/2025
	** 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 Brian Barker report on the ACU Form 4?

The Form 4 reports the exercise/acquisition of 2,500 shares underlying an employee stock option on 08/12/2025.

What was the exercise price per share in the ACU Form 4?

The filing indicates a price of $43.4 per share for the option exercise.

How many ACU shares does Brian Barker beneficially own after the reported transaction?

The Form 4 states Mr. Barker beneficially owns 19,000 shares following the transaction.

What is Brian Barker's relationship to Acme United Corporation in this filing?

The Form 4 lists Brian Barker as a Director of Acme United Corp (ACU).

When was the Form 4 signed and filed by the reporting person?

The document is signed by Brian Barker with a signature date of 08/14/2025.