Acme United director Rex Lynn Davidson exercises options

A footnote describes the option exercise as net share settlement, while two entries record shares delivered or withheld for exercise-price or tax-liability payment.

Available on EDGAR 11/06/2026 - 04:30 PM EST Accepted by SEC EDGAR 11/06/2026 - 04:30 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

ACME UNITED CORP director Rex Lynn Davidson exercised employee stock options on November 5, 2026, to acquire 5,000 shares at $22.66 per share and 4,000 shares at $21.20 per share. The report also records 1,602 shares and 1,199 shares delivered or withheld for payment of exercise price or tax liability. A footnote says the subject option exercise was effected on a net share settlement basis. No Rule 10b5-1 plan is reported.

Insider Trade Summary

9,000 shares exercised/converted

Exercise 6 txns

Insider Davidson Rex Lynn

Role Director

Type	Security	Shares	Price	Value
Exercise	Employee Stock Option	5,000	$22.66	$113K
Exercise	Employee Stock Option	4,000	$21.20	$85K
Exercise	Common Stock	5,000	$22.66	$113K
Exercise Price or Tax Liability	Common Stock F1	1,602	$70.75	$113K
Exercise	Common Stock	4,000	$21.20	$85K
Exercise Price or Tax Liability	Common Stock F1	1,199	$70.75	$85K

Holdings After Transaction: Employee Stock Option — 39,000 options (Direct); Common Stock — 6,199 shares (Direct)

Holdings Before and After: Employee Stock Option, 48,000 to 39,000 options (Direct)

Footnotes (1)

1. F1. The exercise of the subject option was effected on a net share settlement basis.

Key Figures

Shares acquired through option exercise: 5,000 shares Exercise price: $22.66 per share Shares acquired through option exercise: 4,000 shares +3 more

6 metrics

Shares acquired through option exercise 5,000 shares November 5, 2026

Exercise price $22.66 per share Employee stock option exercised November 5, 2026

Shares acquired through option exercise 4,000 shares November 5, 2026

Exercise price $21.20 per share Employee stock option exercised November 5, 2026

Shares delivered or withheld for payment 1,602 shares Exercise price or tax liability; November 5, 2026

Shares delivered or withheld for payment 1,199 shares Exercise price or tax liability; November 5, 2026

Key Terms

Employee Stock Option, exercise price, net share settlement basis

3 terms

Employee Stock Option financial

"Employee Stock Option exercised on November 5, 2026"

An employee stock option is a promise that lets a worker buy company shares later at a predetermined price, often after they stay for a certain period or meet performance goals — think of it like a coupon that locks in today's price for a future purchase. It matters to investors because options align employees’ incentives with company performance, can increase the number of shares outstanding (dilution) when exercised, and represent a compensation cost that affects reported profits and shareholder value.

exercise price financial

"exercise price of $22.66 per share"

The exercise price is the fixed amount at which you can buy or sell an asset, like a stock, when using an options contract. It matters because it helps determine whether exercising the option will be profitable or not, depending on the current market price. Think of it as the set price you agree on today to buy or sell later.

net share settlement basis financial

"effected on a net share settlement basis"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many ACU shares did Rex Lynn Davidson acquire through option exercises?

Rex Lynn Davidson exercised options to acquire 5,000 shares at $22.66 per share and 4,000 shares at $21.20 per share on November 5, 2026.

What were the ACU net-settlement share entries?

The report lists 1,602 shares and 1,199 shares delivered or withheld for payment of exercise price or tax liability. A footnote says the subject option exercise was effected on a net share settlement basis.

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

Form 4 Insider Transactions: What Each Field Means →

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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^*

Davidson Rex Lynn

(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)
11/05/2026

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	11/05/2026	11/05/2026	M		5,000	A	$22.66	5,000	D
Common Stock	11/05/2026	11/05/2026	F		1,602(1)	D	$70.75	3,398	D
Common Stock	11/05/2026	11/05/2026	M		4,000	A	$21.2	4,000	D
Common Stock	11/05/2026	11/05/2026	F		1,199(1)	D	$70.75	6,199	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
Employee Stock Option	$22.66	11/05/2026	11/05/2026	M			5,000	08/09/2018	08/08/2028	Common Stock	5,000	$22.66	21,500	D
Employee Stock Option	$21.2	11/05/2026	11/05/2026	M			4,000	04/23/2019	04/22/2029	Common Stock	4,000	$21.2	17,500	D

Explanation of Responses:

1. The exercise of the subject option was effected on a net share settlement basis.

	/s/ Rex L. Davidson	11/06/2026
	** 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)