CMCO CFO reports 1,189-share tax withholding trade

Columbus McKinnon Executive VP Finance and CFO Gregory P. Rustowicz reported a routine tax-related share disposition.

Rhea-AI Filing Summary

Columbus McKinnon Executive VP Finance and CFO Gregory P. Rustowicz reported a routine tax-related share disposition. On 5/22/2026, 2,735.904 restricted stock units became fully vested, and 1,189 shares of common stock were delivered at $14.88 per share to satisfy tax withholding obligations. After this transaction, he directly holds 91,874.71 shares, including 10,725.917 restricted shares that remain subject to future vesting and potential forfeiture.

Insider Trade Summary

Exercise Price or Tax Liability: 1,189 shares

Exercise Price or Tax Liability 1 txn

Insider Rustowicz Gregory P

Role Executive VP Finance, CFO

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	1,189	$14.88	$18K

Holdings After Transaction: Common Stock — 91,874.71 shares (Direct)

Footnotes (2)

1. F1. 2,735.904 restricted stock units became fully vested on 5/22/2026, of which 1,189 shares were traded to satisfy tax withholding obligations.
2. F2. Includes 10,725.917 shares of restricted stock issued to reporting person subject to forfeiture in whole or part; 1,685.825 shares become fully vested 5/20/2027; and 9,040.092 shares become fully vested 50% per year for two years beginning 5/19/2027, if reporting person remains an employee of issuer.

Key Figures

Tax-withholding shares: 1,189 shares Tax-withholding price: $14.88 per share Shares after transaction: 91,874.71 shares +4 more

7 metrics

Tax-withholding shares 1,189 shares Common stock delivered to satisfy tax obligations on 5/22/2026

Tax-withholding price $14.88 per share Value assigned to shares used for tax withholding

Shares after transaction 91,874.71 shares Direct CMCO common stock held following the Form 4 transaction

RSUs vested 2,735.904 units Restricted stock units that became fully vested on 5/22/2026

Unvested restricted stock 10,725.917 shares Restricted stock subject to forfeiture and future vesting

Tranche vesting 2027-05-20 1,685.825 shares Restricted shares scheduled to fully vest on 5/20/2027

Tranche vesting from 2027-05-19 9,040.092 shares Restricted shares vesting 50% per year for two years from 5/19/2027

Key Terms

restricted stock units, tax withholding obligations, subject to forfeiture, fully vested

4 terms

restricted stock units financial

"2,735.904 restricted stock units became fully vested on 5/22/2026"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

tax withholding obligations financial

"1,189 shares were traded to satisfy tax withholding obligations"

subject to forfeiture financial

"restricted stock issued to reporting person subject to forfeiture in whole or part"

fully vested financial

"2,735.904 restricted stock units became fully vested on 5/22/2026"

FAQ

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

What insider transaction did CMCO CFO Gregory Rustowicz report on this Form 4?

Gregory P. Rustowicz reported a tax-withholding disposition of 1,189 shares of Columbus McKinnon common stock. The shares were used to cover taxes when his restricted stock units vested, rather than representing an open-market sale or discretionary trade.

Were the CMCO shares disposed of by the CFO an open-market sale?

No, the 1,189 CMCO shares were not an open-market sale. They were delivered at $14.88 per share to satisfy tax withholding obligations triggered by vesting restricted stock units, a common, mechanical part of equity compensation.

How many Columbus McKinnon shares does the CFO hold after this reported transaction?

Following the tax-withholding disposition, the CFO directly holds 91,874.71 shares of Columbus McKinnon common stock. This total includes both fully vested shares and restricted shares that are still subject to future vesting conditions and potential forfeiture.

What restricted stock units vested for the CMCO CFO on May 22, 2026?

On May 22, 2026, 2,735.904 restricted stock units held by the CMCO CFO became fully vested. Of these vested units, 1,189 shares were delivered to cover associated tax withholding obligations, with the remaining vested shares added to his direct shareholdings.

What additional unvested restricted stock does the CMCO CFO still have outstanding?

The CFO retains 10,725.917 shares of restricted stock subject to forfeiture. Of these, 1,685.825 shares are scheduled to vest on May 20, 2027, and 9,040.092 shares vest 50% per year for two years beginning May 19, 2027, contingent on continued employment.

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

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Accepted by SEC EDGAR 05/26/2026 - 03:38 PM EDT 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^*

Rustowicz Gregory P

(Last) (First) (Middle)

13320 BALLANTYNE CORPORATE PLACE

(Street)

CHARLOTTE NORTH CAROLINA 28277

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
COLUMBUS MCKINNON CORP [ CMCO ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Executive VP Finance, CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/22/2026

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	05/22/2026		F		1,189(1)	D	$14.88	91,874.71(2)	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:

1. 2,735.904 restricted stock units became fully vested on 5/22/2026, of which 1,189 shares were traded to satisfy tax withholding obligations.

2. Includes 10,725.917 shares of restricted stock issued to reporting person subject to forfeiture in whole or part; 1,685.825 shares become fully vested 5/20/2027; and 9,040.092 shares become fully vested 50% per year for two years beginning 5/19/2027, if reporting person remains an employee of issuer.

Remarks:

	Gregory Rustowicz	05/26/2026
	** 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)