Mill Road Capital ups stake in Alta Equipment

Mill Road Capital III, L.P., a 10% owner of Alta Equipment Group Inc., made an open-market purchase of 18,040 common shares on March 11, 2026 at an average price of $6.3615 per share, bringing its direct holdings to 4,311,248 shares.

Rhea-AI Filing Summary

Mill Road Capital III, L.P., a 10% owner of Alta Equipment Group Inc., made an open-market purchase of 18,040 common shares on March 11, 2026 at an average price of $6.3615 per share, bringing its direct holdings to 4,311,248 shares. The shares are held by the Fund, with voting and disposal authority exercised by its general partner Mill Road Capital III GP LLC; Thomas E. Lynch participates in that authority through the GP, and each reporting person disclaims beneficial ownership beyond any pecuniary interest.

Insider Trade Summary

Net Buyer: 18,040 shares

Net Buy 1 txn

Insider Mill Road Capital III, L.P., Mill Road Capital III GP LLC, LYNCH THOMAS E

Role 10% Owner | 10% Owner | 10% Owner

Bought 18,040 shs ($115K)

Type	Security	Shares	Price	Value
Purchase	Common Stock, $0.0001 par value	18,040	$6.3615	$115K

Holdings After Transaction: Common Stock, $0.0001 par value — 4,311,248 shares (Direct)

Footnotes (1)

1. F1. The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

FAQ

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

What insider transaction did Mill Road Capital report for ALTG?

Mill Road Capital III, L.P. reported buying 18,040 ALTG shares. The open-market purchase on March 11, 2026 was at an average price of $6.3615 per share, increasing its direct Alta Equipment Group holdings to 4,311,248 common shares.

Who holds the Alta Equipment Group shares reported in this ALTG Form 4?

The shares are directly held by Mill Road Capital III, L.P. Mill Road Capital III GP LLC, the sole general partner, has sole authority to vote and dispose of the shares on the Fund’s behalf, with Thomas E. Lynch sharing that authority through his role at the GP.

How large is Mill Road Capital’s ALTG position after this purchase?

After the transaction, Mill Road Capital III, L.P. holds 4,311,248 ALTG shares. This figure reflects its direct ownership of Alta Equipment Group common stock following the 18,040‑share open-market purchase disclosed in the Form 4.

What price did Mill Road Capital pay per ALTG share in this transaction?

Mill Road Capital paid an average of $6.3615 per ALTG share. The Form 4 describes the March 11, 2026 transaction as an open-market purchase of 18,040 Alta Equipment Group common shares at that average price.

How do the ALTG Form 4 footnotes describe beneficial ownership?

The footnotes state each reporting person disclaims beneficial ownership. Mill Road Capital III, L.P., the GP, and Thomas E. Lynch disclaim ownership of the Alta Equipment Group shares except to the extent of any pecuniary interest they may have in the position.

Is Thomas E. Lynch the direct owner of the ALTG shares in this filing?

No, the shares are directly owned by Mill Road Capital III, L.P. Lynch is a management committee director of the GP, sharing voting and disposal authority over the Alta Equipment Group shares but disclaiming beneficial ownership beyond any pecuniary interest.

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

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Accepted by SEC EDGAR 03/13/2026 - 02:15 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^*

Mill Road Capital III, L.P.

(Last) (First) (Middle)

328 PEMBERWICK ROAD

(Street)

GREENWICH CT 06831

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ALTA EQUIPMENT GROUP INC. [ ALTG ]

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

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
03/11/2026

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

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

	Form filed by One Reporting Person
X	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
Common Stock, $0.0001 par value	03/11/2026		P		18,040	A	$6.3615	4,311,248	D(1)

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

1. Name and Address of Reporting Person^*

Mill Road Capital III, L.P.

(Last) (First) (Middle)

328 PEMBERWICK ROAD

(Street)

GREENWICH CT 06831

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

Mill Road Capital III GP LLC

(Last) (First) (Middle)

328 PEMBERWICK ROAD

(Street)

GREENWICH CT 06831

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

1. Name and Address of Reporting Person^*

LYNCH THOMAS E

(Last) (First) (Middle)

328 PEMBERWICK ROAD

(Street)

GREENWICH CT 06831

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer

	Director	X	10% Owner
	Officer (give title below)		Other (specify below)

Explanation of Responses:

1. The shares reported are directly held by Mill Road Capital III, L.P. (the "Fund"). Mill Road Capital III GP LLC (the "GP") is the sole general partner of the Fund and has sole authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the Fund. Mr. Lynch is a management committee director of the GP and has shared authority to vote (or direct the vote of), and to dispose (or direct the disposal) of, these shares on behalf of the GP. Each of the Reporting Persons disclaims beneficial ownership of such shares except to the extent of his or its pecuniary interest therein, if any.

	/s/ Thomas E. Lynch, Management Committee Director of sole general partner on behalf of Mill Road Capital III, L.P.	03/13/2026
	/s/ Thomas E. Lynch, Management Committee Director on behalf of Mill Road Capital III GP LLC	03/13/2026
	/s/ Thomas E. Lynch	03/13/2026
	** 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.
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