ACME United (NYSE: ACU) director sells 3,821, stake falls to zero

Rhea-AI Filing Summary

ACME UNITED CORP (ACU) director Brian Barker reported selling 3,821 shares of common stock on 2026-08-13 in a sale classified as an open market or private transaction at $60.50 per share. Following this transaction, he reported owning 0 shares of ACU common stock directly. The Rule 10b5-1 trading plan box was unchecked.

Insider Trade Summary

Net Seller: 3,821 shares

Net Sell 1 txn

Insider BARKER BRIAN

Role Director

Sold 3,821 shs ($231K)

Type	Security	Shares	Price	Value
Sale	Common Stock	3,821	$60.50	$231K

Holdings After Transaction: Common Stock — 0 shares (Direct)

Key Figures

Shares sold: 3,821 shares Sale price per share: $60.50 Shares owned after transaction: 0 shares

3 metrics

Shares sold 3,821 shares Non-derivative sale of ACU common stock on 2026-08-13

Sale price per share $60.50 Per-share price for the 3,821 ACU common shares sold

Shares owned after transaction 0 shares Total directly held ACU common stock following the reported sale

Key Terms

Rule 10b5-1, non-derivative, open market or private transaction

3 terms

Rule 10b5-1 regulatory

"The Rule 10b5-1 trading plan box was unchecked."

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

non-derivative financial

"The transaction involves a non-derivative sale of common stock."

open market or private transaction financial

"Classified as a sale in an open market or private transaction."

FAQ

What insider transaction did ACME UNITED CORP (ACU) director Brian Barker report?

Brian Barker reported a sale of 3,821 ACU common shares on 2026-08-13. The transaction was coded as a sale in an open market or private transaction, reflecting a reduction of his direct holdings to zero.

At what price did Brian Barker sell ACME UNITED CORP (ACU) shares?

Brian Barker sold ACU common stock at $60.50 per share. The filing identifies this as a per-share transaction price for the 3,821 shares sold in an open market or private transaction.

How many ACME UNITED CORP (ACU) shares does Brian Barker hold after this Form 4 transaction?

After the reported sale, Brian Barker’s directly owned ACU common stock position is 0 shares. The Form 4 lists his total shares following the transaction as 0.0000, indicating no remaining directly held common shares.

Was Brian Barker’s ACME UNITED CORP (ACU) trade under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is unchecked, so the transaction is not affirmed as occurring under a pre-arranged trading plan. No footnote in the data provided reclassifies it as plan-based trading.

What is the size of Brian Barker’s ACME UNITED CORP (ACU) sale reported on Form 4?

The reported transaction involves the sale of 3,821 shares of ACU common stock. This was a single non-derivative transaction on 2026-08-13, with the post-transaction direct holdings shown as zero shares.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/17/2026 - 04:30 PM Accepted by SEC EDGAR 08/17/2026 - 04:30 PM Learn about SEC filing dates

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 CONNECTICUT 06484

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/13/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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
Common Stock	08/13/2026	08/13/2026	S		3,821	D	$60.5	0	D

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

Explanation of Responses:

	/s/ Brian Barker	08/17/2026
	** 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 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.
* Form 4: SEC 1474 (03-26)