Comparable stake leader
Mill Road Capital III, L.P.
SEC ownership of ALTA EQUIPMENT GROUP INC.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001759824.
Disclosed value leader
Ryan Greenawalt
Comparable rows
50/50
Latest evidence
02 Jul 2026
- Public ticker
- ALTG, ALTG-PA on NYSE
- Parsed ownership sources
-
3/4/5, 13D/G, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Mill Road Capital III, L.P.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Mill Road Capital III, L.P.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
02 Jul 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001759824
- Issuer location
- Livonia, MI
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of ALTA EQUIPMENT GROUP INC. (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
50/50
Latest evidence
02 Jul 2026
3/4/5
13D/G
13F
Lead comparable stake: 13%
13D/G row: Mill Road Capital III, L.P.
Showing 1-8 of 50 holder rows.
Quick read
Mill Road Capital III, L.P. leads the comparable SEC ownership view at 13%.
50 of 50 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 5
Mill Road Capital III, L.P.
13%
CastleKnight Master Fund LP
5.5%
BlackRock, Inc.
4.9%
Ryan Greenawalt
18%
Daniel Shribman
1.5%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Mill Road Capital III, L.P. |
3/4/5
13D/G
10%+ Owner
|
13%
from 13D/G
|
$26,005,281
4,373,208 shares
|
+$492,012 | 12 Mar 2026 |
| CastleKnight Master Fund LP |
13D/G
|
5.5%
|
$11,629,987
1,797,525 shares
|
$0 | 02 Jul 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
4.9%
from 13D/G
|
$10,752,927
1,661,967 shares
|
— | 30 Jun 2026 |
| Ryan Greenawalt |
3/4/5
Chief Executive Officer, Director, 10%+ Owner
|
18%
|
$40,335,766
5,721,710 shares
|
— | 27 Feb 2026 |
| Daniel Shribman |
3/4/5
Director
|
1.5%
|
$2,609,466
493,189 shares
|
+$202,940 | 29 May 2026 |
| Anthony Colucci |
3/4/5
Chief Financial Officer
|
0.74%
|
$1,697,696
240,750 shares
|
— | 27 Feb 2026 |
| STUDDERT ANDREW P |
3/4/5
Director
|
0.4%
|
$707,314
131,716 shares
|
— | 29 May 2026 |
| Jeffrey Alan Hoover |
3/4/5
Chief Legal Officer
|
0.26%
|
$550,745
84,730 shares
|
— | 27 Feb 2026 |
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.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$722,202.
Buys
$722,202
Insiders: 3
Sells
$0
Insiders: 0
Net
+$722,202
Shares: +124,000
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 124,000
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 84,000 | 0 | $519,262 | $0 | +$519,262 |
| 9-12 | 40,000 | 0 | $202,940 | $0 | +$202,940 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-14 of 14 reporting-owner rows connected to ALTA EQUIPMENT GROUP INC.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
14
Largest Forms 3/4/5 holder
Ryan Greenawalt
Net 12M change
+$722,202
Latest report
03 Aug 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Ryan Greenawalt | Chief Executive Officer, Director, 10%+ Owner | $40,335,766 | Filing P/S | 27 Feb 2026 | ||
| Mill Road Capital III, L.P. | 10%+ Owner | $26,005,281 | +$492,012 | +1.9% | Filing P/S | 12 Mar 2026 |
| Voss Capital, LP | 10%+ Owner | $4,750,095 | Mixed | 05 Mar 2025 | ||
| Daniel Shribman | Director | $2,609,466 | +$202,940 | +8.4% | Mixed | 29 May 2026 |
| BRC Group Holdings, Inc. | 10%+ Owner | $2,369,653 | Mixed | 07 Feb 2024 | ||
| Anthony Colucci | Chief Financial Officer | $1,697,696 | Filing P/S | 27 Feb 2026 | ||
| Zachary E. Savas | Director | $971,285 | Filing P/S | 27 Nov 2023 | ||
| STUDDERT ANDREW P | Director | $707,314 | Mixed | 29 May 2026 | ||
| Craig Brubaker | Chief Operating Officer | $564,171 | Mixed | 18 Mar 2025 | ||
| Jeffrey Alan Hoover | Chief Legal Officer | $550,745 | Mixed | 27 Feb 2026 | ||
| Katherine E. White | Director | $441,435 | Mixed | 29 May 2026 | ||
| Sidhartha Nair | Director | $283,047 | +$27,250 | +11% | Mixed | 29 May 2026 |
| Colin Wilson | Director | $235,941 | Mixed | 29 May 2026 | ||
| David Ohm Turner | Director | Mixed | 03 Aug 2026 |
Recent insider transactions for ALTA EQUIPMENT GROUP INC.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Daniel Shribman | ALTG | Common Stock | Award | 4.3% | 14,903 | 361,796 | 29 May 2026 | Direct | ||
| Katherine E. White | ALTG | Common Stock | Award | 22.1% | 14,903 | 82,204 | 29 May 2026 | Direct | ||
| Sidhartha Nair | ALTG | Common Stock | Award | 39.4% | 14,903 | 52,709 | 29 May 2026 | Direct | ||
| Studdert Andrew P | ALTG | Common Stock | Award | 12.8% | 14,903 | 131,716 | 29 May 2026 | Direct | ||
| Colin Wilson | ALTG | Common Stock | Award | 51.3% | 14,903 | 43,937 | 29 May 2026 | Direct | ||
| Mill Road Capital III, L.P. | ALTG | Common Stock, $0.0001 par value | Purchase | 0.09% | $22,585 | $5.95 | 3,798 | 4,373,208 | 13 Mar 2026 | Direct |
| Mill Road Capital III, L.P. | ALTG | Common Stock, $0.0001 par value | Purchase | 1.35% | $354,666 | $6.10 | 58,162 | 4,369,410 | 12 Mar 2026 | Direct |
| Sidhartha Nair | ALTG | Common Stock | Purchase | 2.72% | $6,370 | $6.37 | 1,000 | 37,806 | 11 Mar 2026 | Direct |
| Mill Road Capital III, L.P. | ALTG | Common Stock, $0.0001 par value | Purchase | 0.42% | $114,761 | $6.36 | 18,040 | 4,311,248 | 11 Mar 2026 | Direct |
| Sidhartha Nair | ALTG | Common Stock | Purchase | 2.79% | $6,750 | $6.75 | 1,000 | 36,806 | 09 Mar 2026 | Direct |
| Sidhartha Nair | ALTG | Common Stock | Purchase | 2.87% | $7,000 | $7.00 | 1,000 | 35,806 | 05 Mar 2026 | Direct |
| Sidhartha Nair | ALTG | Common Stock | Purchase | 2.96% | $7,130 | $7.13 | 1,000 | 34,806 | 03 Mar 2026 | Direct |
| Jeffrey Alan Hoover | ALTG | Common Stock | Award | 25.6% | 17,261 | 84,730 | 27 Feb 2026 | Direct | ||
| Anthony Colucci | ALTG | Common Stock | Award | 5.06% | 11,654 | 241,809 | 27 Feb 2026 | Direct | ||
| Ryan Greenawalt | ALTG | Common Stock | Award | 1.42% | 80,115 | 5,728,993 | 27 Feb 2026 | Direct | ||
| Daniel Shribman | ALTG | Common Stock | Purchase | 43.8% | $202,940 | $5.07 | 40,000 | 131,393 | 08 Dec 2025 | Clamantis Holdings LLC |
* marks a reported price that did not pass the local price check.