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Acme United COO Brian S. Olschan sells 14,205 shares

Acme United Corp. (ACU) director and President and COO Brian S. Olschan reported direct sales of 14,205 shares of common stock on November 2, 2026, at $69.14 per share, and 1,258 shares on November 4, 2026, at $71.52 per share.

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Form Type
4

Rhea-AI Filing Summary

Acme United Corp. (ACU) director and President and COO Brian S. Olschan reported direct sales of 14,205 shares of common stock on November 2, 2026, at $69.14 per share, and 1,258 shares on November 4, 2026, at $71.52 per share. The Rule 10b5-1 plan checkbox was unchecked.

Insider OLSCHAN BRIAN S
Role President and COO
Sold 15,463 shs ($1.07M)
Share of Position Sold 27.3%
Type Security Shares Price Value
Sale Common Stock 1,258 $71.52 $90K
Sale Common Stock 14,205 $69.14 $982K
Holdings After Transaction: Common Stock — 41,172 shares (Direct)
Holdings Before and After: Common Stock, 56,635 to 41,172 shares (Direct)
Other Insiders: 2 other insiders reported open-market sales of this stock in the 30 days up to this filing.
Shares sold 14,205 shares November 2, 2026
Sale price per share $69.14 per share November 2, 2026
Shares sold 1,258 shares November 4, 2026
Sale price per share $71.52 per share November 4, 2026

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How many ACU shares did Brian S. Olschan sell, and at what prices?

Brian S. Olschan reported direct sales of 14,205 Acme United Corp. common shares on November 2, 2026, at $69.14 per share, and 1,258 shares on November 4, 2026, at $71.52 per share.

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

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SEC Form 4
FORM 4UNITED 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*
OLSCHAN BRIAN S

(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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
President and COO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
11/02/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock11/02/202611/02/2026S14,205D$69.1442,430D
Common Stock11/04/202611/04/2026S1,258D$71.5241,172D
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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
/s/ Brian S. Olschan11/04/2026
** Signature of Reporting PersonDate
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)

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