CastleKnight entities and Aaron Weitman report a significant passive stake in Alta Equipment Group Inc. They collectively report beneficial ownership of 1,797,525 shares of Alta common stock, representing 5.5% of the outstanding class. All reporting persons have 0 shares with sole voting or dispositive power and 1,797,525 shares with shared voting and shared dispositive power. The reporting group comprises CastleKnight Master Fund LP, its related general partners and management entities, Weitman Capital LLC, and Aaron Weitman, who signs on behalf of the entities and individually.
Positive
None.
Negative
None.
Insights
CastleKnight and Aaron Weitman disclose a 5.5% passive stake in Alta.
The filing shows a group led by CastleKnight Master Fund LP and Aaron Weitman holding 1,797,525 shares of Alta common stock, or 5.5% of the class. Voting and dispositive power are reported as entirely shared across the entities, with no sole authority.
This structure indicates coordinated investment control through several U.S. and Cayman entities, with Weitman at the top of the control chain. As a Schedule 13G, it reflects a passive ownership position rather than an activist stance as of 07/02/2026.
Key Figures
Beneficial ownership shares:1,797,525 sharesPercent of class:5.5%Shared voting power:1,797,525 shares+3 more
6 metrics
Beneficial ownership shares1,797,525 sharesShares of Alta common stock beneficially owned by each reporting person
Percent of class5.5%Portion of Alta’s common stock class reported as beneficially owned
Shared voting power1,797,525 sharesShares over which each reporting person has shared voting power
Sole voting power0 sharesShares over which each reporting person has sole voting power
Shared dispositive power1,797,525 sharesShares over which each reporting person has shared dispositive power
Reporting date reference07/02/2026Date associated with the Alta common stock position reported
"Amount beneficially owned: CastleKnight Master Fund LP - 1,797,525"
Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.
shared voting powerfinancial
"Shared Voting Power 1,797,525.00"
Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.
shared dispositive powerfinancial
"Shared Dispositive Power 1,797,525.00"
parent holding companyregulatory
"If a parent holding company has filed this schedule, pursuant to (ii)(G)"
control personregulatory
"Control Person Identification"
A control person is an individual or entity that can significantly influence a company’s decisions and direction through ownership, voting power, or contractual rights—think of them as the captain who can steer the ship. Investors care because a control person’s choices affect corporate strategy, board appointments, and transactions that can raise or lower a stock’s value, and they often carry additional legal responsibilities and disclosure requirements to protect other shareholders.
What percentage of Alta Equipment Group Inc. (ALTG) shares does the CastleKnight group own?
The CastleKnight group and Aaron Weitman collectively report beneficial ownership of 5.5% of Alta Equipment Group Inc.’s common stock, representing 1,797,525 shares with shared voting and dispositive power.
How many Alta Equipment Group Inc. (ALTG) shares are beneficially owned by CastleKnight Master Fund LP?
CastleKnight Master Fund LP reports beneficial ownership of 1,797,525 shares of Alta Equipment Group Inc. common stock, equal to 5.5% of the outstanding class, all held with shared voting and shared dispositive power.
Who are the reporting persons in this Alta Equipment Group Inc. (ALTG) Schedule 13G filing?
The reporting persons are CastleKnight Master Fund LP, CastleKnight Fund GP LLC, CastleKnight Management LP, CastleKnight Management GP LLC, Weitman Capital LLC, and Aaron Weitman, all jointly reporting the same 1,797,525-share, 5.5% beneficial ownership stake.
Does the CastleKnight group have sole voting power over Alta Equipment Group Inc. (ALTG) shares?
No. Each reporting person discloses 0 shares with sole voting power and 1,797,525 shares with shared voting power, indicating that all voting authority over the reported stake is shared among the group.
What is the nature of dispositive power over Alta Equipment Group Inc. (ALTG) shares in this filing?
Each reporting person reports 0 shares with sole dispositive power and 1,797,525 shares with shared dispositive power, meaning decisions to sell or otherwise dispose of the stake are shared rather than individually controlled.
What type of filing discloses the CastleKnight group’s stake in Alta Equipment Group Inc. (ALTG)?
The stake is disclosed on a Schedule 13G, which reports passive beneficial ownership. It shows the CastleKnight entities and Aaron Weitman jointly holding 1,797,525 Alta common shares, or 5.5% of the class.
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
Alta Equipment Group Inc.
(Name of Issuer)
Common stock, $0.0001 par value per share
(Title of Class of Securities)
02128L106
(CUSIP Number)
07/02/2026
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
schemaVersion:
SCHEDULE 13G
CUSIP Number(s):
02128L106
1
Names of Reporting Persons
CastleKnight Master Fund LP
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
CAYMAN ISLANDS
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,797,525.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,797,525.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,797,525.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.5 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP Number(s):
02128L106
1
Names of Reporting Persons
CastleKnight Fund GP LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,797,525.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,797,525.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,797,525.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.5 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP Number(s):
02128L106
1
Names of Reporting Persons
CastleKnight Management LP
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,797,525.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,797,525.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,797,525.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.5 %
12
Type of Reporting Person (See Instructions)
IA, PN
SCHEDULE 13G
CUSIP Number(s):
02128L106
1
Names of Reporting Persons
CastleKnight Management GP LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,797,525.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,797,525.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,797,525.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.5 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP Number(s):
02128L106
1
Names of Reporting Persons
Weitman Capital LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
NEW JERSEY
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,797,525.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,797,525.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,797,525.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.5 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP Number(s):
02128L106
1
Names of Reporting Persons
Aaron Weitman
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
1,797,525.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
1,797,525.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
1,797,525.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
5.5 %
12
Type of Reporting Person (See Instructions)
HC, IN
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Alta Equipment Group Inc.
(b)
Address of issuer's principal executive offices:
13211 Merriman Road, Livonia, Michigan 48150
Item 2.
(a)
Name of person filing:
CastleKnight Master Fund LP
CastleKnight Fund GP LLC
CastleKnight Management LP
CastleKnight Management GP LLC
Weitman Capital LLC
Aaron Weitman
(b)
Address or principal business office or, if none, residence:
CastleKnight Master Fund LP
Maples Corporate Services Limited
P.O. Box 309
Ugland House
Grand Cayman KY1-1104
Cayman Islands
CastleKnight Fund GP LLC
888 Seventh Avenue, 24th Floor
New York, New York 10019
United States of America
CastleKnight Management LP
888 Seventh Avenue, 24th Floor
New York, New York 10019
United States of America
CastleKnight Management GP LLC
888 Seventh Avenue, 24th Floor
New York, New York 10019
United States of America
Weitman Capital LLC
c/o Aaron Weitman
c/o CastleKnight Management LP
888 Seventh Avenue, 24th Floor
New York, New York 10019
United States of America
Aaron Weitman
c/o CastleKnight Management LP
888 Seventh Avenue, 24th Floor
New York, New York 10019
United States of America
(c)
Citizenship:
CastleKnight Master Fund LP - Cayman Islands
CastleKnight Fund GP LLC - Delaware
CastleKnight Management LP - Delaware
CastleKnight Management GP LLC - Delaware
Weitman Capital LLC - New Jersey
Aaron Weitman - United States
(d)
Title of class of securities:
Common stock, $0.0001 par value per share
(e)
CUSIP Number(s):
02128L106
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
CastleKnight Master Fund LP - 1,797,525
CastleKnight Fund GP LLC - 1,797,525
CastleKnight Management LP - 1,797,525
CastleKnight Management GP LLC - 1,797,525
Weitman Capital LLC - 1,797,525
Aaron Weitman - 1,797,525
(b)
Percent of class:
CastleKnight Master Fund LP - 5.5%
CastleKnight Fund GP LLC - 5.5%
CastleKnight Management LP - 5.5%
CastleKnight Management GP LLC - 5.5%
Weitman Capital LLC - 5.5%
Aaron Weitman - 5.5%
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
CastleKnight Master Fund LP - 0
CastleKnight Fund GP LLC - 0
CastleKnight Management LP - 0
CastleKnight Management GP LLC - 0
Weitman Capital LLC - 0
Aaron Weitman - 0
(ii) Shared power to vote or to direct the vote:
CastleKnight Master Fund LP - 1,797,525
CastleKnight Fund GP LLC - 1,797,525
CastleKnight Management LP - 1,797,525
CastleKnight Management GP LLC - 1,797,525
Weitman Capital LLC - 1,797,525
Aaron Weitman - 1,797,525
(iii) Sole power to dispose or to direct the disposition of:
CastleKnight Master Fund LP - 0
CastleKnight Fund GP LLC - 0
CastleKnight Management LP - 0
CastleKnight Management GP LLC - 0
Weitman Capital LLC - 0
Aaron Weitman - 0
(iv) Shared power to dispose or to direct the disposition of:
CastleKnight Master Fund LP - 1,797,525
CastleKnight Fund GP LLC - 1,797,525
CastleKnight Management LP - 1,797,525
CastleKnight Management GP LLC - 1,797,525
Weitman Capital LLC - 1,797,525
Aaron Weitman - 1,797,525
Item 5.
Ownership of 5 Percent or Less of a Class.
Not Applicable
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
Not Applicable
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.
Please see Exhibit B attached hereto.
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
CastleKnight Master Fund LP
Signature:
By: CastleKnight Fund GP LLC, its general partner, By: Weitman Capital LLC, its managing member, By: /s/ Aaron Weitman
Name/Title:
Aaron Weitman, Manager
Date:
07/10/2026
CastleKnight Fund GP LLC
Signature:
By: Weitman Capital LLC, its managing member, By: /s/ Aaron Weitman
Name/Title:
Aaron Weitman, Manager
Date:
07/10/2026
CastleKnight Management LP
Signature:
By: CastleKnight Management GP LLC, its general partner, By: Weitman Capital LLC, its managing member, By: /s/ Aaron Weitman
Name/Title:
Aaron Weitman, Manager
Date:
07/10/2026
CastleKnight Management GP LLC
Signature:
By: Weitman Capital LLC, its managing member, By: /s/ Aaron Weitman
Name/Title:
Aaron Weitman, Manager
Date:
07/10/2026
Weitman Capital LLC
Signature:
/s/ Aaron Weitman
Name/Title:
Aaron Weitman, Manager
Date:
07/10/2026
Aaron Weitman
Signature:
/s/ Aaron Weitman
Name/Title:
Aaron Weitman
Date:
07/10/2026
Exhibit Information
Exhibit A - Joint Filing Agreement
Exhibit B - Control Person Identification
