ALTA EQUIPMENT GROUP INC. - Common stock, $0.0001 par value per share (ALTG)

Q: What does CUSIP 02128L106 represent in this 13F holders report?

CUSIP 02128L106 is the security identifier for ALTG - ALTA EQUIPMENT GROUP INC. - Common stock, $0.0001 par value per share used to aggregate holder disclosures.

Q: How many institutions held ALTG - ALTA EQUIPMENT GROUP INC. - Common stock, $0.0001 par value per share in Q3 2026?

17 institutional investors reported ALTG - ALTA EQUIPMENT GROUP INC. - Common stock, $0.0001 par value per share for Q3 2026. Use the holders table for investor-level position and value details.

CUSIP: 02128L106

Q3 2026 13F Holders as of 30 Sep 2026

Security type / class: Equity / Common stock, $0.0001 par value per share
Total 13F shares: 407,524
Total 13F value: $2,482,021
Share change: +129,011
SEC-reported price per share: $6.08
Number of holders: 17
Value change: +$775,638
Number of buys: 10
Number of sells: 6
Shares outstanding: 32,682,273

Security key

02128L106

Report period

Q3 2026

Institutions

Top holders

ALTG full security history Ownership snapshot Full 13F holder table ALTA EQUIPMENT GROUP INC. SEC filings ALTA EQUIPMENT GROUP INC. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 02128L106

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of ALTG - ALTA EQUIPMENT GROUP INC. - Common stock, $0.0001 par value per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Mill Road Capital III, L.P.

Disclosed value leader

Ryan Greenawalt

Comparable rows

3/15

Latest evidence

02 Jul 2026

3/4/5 13D/G 13F Lead comparable stake: 13% 12 rows are not safely comparable across share classes. 13D/G row: Mill Road Capital III, L.P. Showing 1-6 of 15 holder rows.

Quick read

Mill Road Capital III, L.P. leads the comparable SEC ownership view at 13%.

3 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Mill Road Capital III, L.P.'s linked filing trail.

Comparable ownership Top 3

Mill Road Capital III, L.P. 13%

CastleKnight Master Fund LP 5.5%

BlackRock, Inc. 4.9%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Mill Road Capital III, L.P.	3/4/5 13D/G 10%+ Owner 3/4/5 13D/G	13% Reported 13D/G · 21 Jan 2026	$26,005,281 4,373,208 shares	+$492,012	12 Mar 2026
CastleKnight Master Fund LP	13D/G 13D/G	5.5% Reported 13D/G · 02 Jul 2026	$11,629,987 1,797,525 shares	$0	02 Jul 2026
BlackRock, Inc.	13F 13D/G Company 13F 13D/G	4.9% Reported 13D/G · 30 Jun 2025	$10,752,927 1,661,967 shares	—	30 Jun 2026
Ryan Greenawalt	3/4/5 Chief Executive Officer, Director, 10%+ Owner 3/4/5	— denominator unverified	$40,335,766 5,721,710 shares	—	27 Feb 2026
Voss Capital, LP	13F 3/4/5 Company · 10%+ Owner 13F 3/4/5	— denominator unverified	$7,612,052 1,176,515 shares	—	30 Jun 2026
BRC Group Holdings, Inc.	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$2,369,653 215,423 shares	—	07 Feb 2024

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q3 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

407,524

Rows available

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q3 2026 vs Q2 2026 Across Filers

Q2 2026 holders

132

Q3 2026 holders

Holder diff

-115

Investor	Q2 2026 Shares	Q3 2026 Shares	Share Diff	Share Chg %	Q2 2026 value	Q3 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend