ALTG · Alta Equipment Group Inc. · Shareholders & Ownership

$6.03 -0.05 (-0.82%)

Russell 2000 member Rebalance outlook locked

Market Cap

$197.63M

32.67M

Volume · Oct 20 41.15K Avg daily vol (3M) 187.33K

Every disclosed holder of ALTG in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns ALTG

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

No chart: the summed disclosures exceed shares outstanding, so they are not parts of one whole.

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	132	19,969,286	61.13%	Yes
Insiders (Forms 3, 4, 5)	10	11,213,934	34.33%	Yes
13D/G-only blocks	3	5,053,307	15.47%	Yes
Remaining	—	3,569,655	-10.93%	Negative
Registered funds (N-PORT, not summed)	121	5,024,119	15.38%	No

Shares outstanding: 32,666,872, the issuer's latest cover-page count restated onto today's split basis.

Remaining is negative: the summed disclosures exceed shares outstanding, as when filings are dated at different times or holders that do not disclose their links count the same shares. It is flagged, not clipped.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of ALTG

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	Greenawalt Ryan Insider CIK 1803431 · Feb 27, 2026 Director, Chief Executive Officer, 10% Owner, issuer-wide	5,728,993	17.54%	+167,966	Feb 27, 2026	Director, Chief Executive Officer, 10% Owner, issuer-wide
2	Mill Road Capital III, L.P. Insider CIK 1767199 · Mar 13, 2026 10% Owner, issuer-wide	4,373,208	13.39%	+61,960	Mar 13, 2026	10% Owner, issuer-wide
2.1	Mill Road Capital III, L.P. 13D CIK 1767199 · Unknown · Jan 21, 2026 not summed	4,293,208	13.14%	+1,241,343	Jan 21, 2026	not summed
3	Mill Road Capital Management LLC 13F CIK 1512275 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	4,373,208	13.39%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
4	BlackRock Inc. 13G CIK 1364742 · Unknown · Dec 31, 2023 Rule 13d-1(b), qualified institution	3,015,749	9.23%	—	Dec 31, 2023	Rule 13d-1(b), qualified institution
5	CastleKnight Master Fund LP 13G CIK 1954661 · Unknown · Jul 2, 2026 Rule 13d-1(c), passive investor	1,797,525	5.50%	—	Jul 2, 2026	Rule 13d-1(c), passive investor
6	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,661,967	5.09%	+42,202	Jun 30, 2026	carried, not yet filed for the newest quarter
6.1	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	517,321	1.58%	+17,560	Jun 30, 2026	iShares Trust, not summed
6.2	iShares Russell 2000 Value ETF Fund S000004342 · Registered fund · Jun 30, 2026 iShares Trust, not summed	154,288	0.47%	+12,912	Jun 30, 2026	iShares Trust, not summed
6.3	iShares Micro-Cap ETF Fund S000004439 · Registered fund · Jun 30, 2026 iShares Trust, not summed	66,942	0.20%	+18,588	Jun 30, 2026	iShares Trust, not summed
6.4	iShares Core S&P Total U.S. Stock Market ETF Fund S000004317 · Registered fund · Jun 30, 2026 iShares Trust, not summed	53,865	0.16%	+277	Jun 30, 2026	iShares Trust, not summed
6.5	iShares Russell 2000 Growth ETF Fund S000004343 · Registered fund · Jun 30, 2026 iShares Trust, not summed	40,864	0.13%	+416	Jun 30, 2026	iShares Trust, not summed
7	CastleKnight Management LP 13F CIK 1835751 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,617,525	4.95%	+632,837	Jun 30, 2026	carried, not yet filed for the newest quarter
8	Voss Capital, LP 13F CIK 1730145 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,176,515	3.60%	-1,247,585	Jun 30, 2026	carried, not yet filed for the newest quarter
8.1	Voss Capital, LP 13G CIK 1730145 · Unknown · Jun 30, 2026 Rule 13d-1(c), passive investor, not summed	1,129,445	3.46%	-2,115,555	Jun 30, 2026	Rule 13d-1(c), passive investor, not summed
8.2	Voss Capital, LP Insider CIK 1730145 · Mar 5, 2025 10% Owner, issuer-wide, not summed	150,000	0.46%	—	Mar 5, 2025	10% Owner, issuer-wide, not summed
9	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,053,534	3.23%	+17,064	Jun 30, 2026	carried, not yet filed for the newest quarter
10	ROYCE & ASSOCIATES LP 13F CIK 906304 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,010,296	3.09%	+449,513	Jun 30, 2026	carried, not yet filed for the newest quarter
10.1	Royce Micro-Cap Fund Fund S000009506 · Registered fund · Jun 30, 2026 ROYCE FUND, not summed	280,765	0.86%	+116,973	Jun 30, 2026	ROYCE FUND, not summed
10.2	Royce Capital Fund - Micro-Cap Portfolio Fund S000009496 · Registered fund · Jun 30, 2026 ROYCE CAPITAL FUND, not summed	91,429	0.28%	+36,043	Jun 30, 2026	ROYCE CAPITAL FUND, not summed
11	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	798,858	2.45%	0	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
12	Nantahala Capital Management, LLC 13F CIK 1472322 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	724,774	2.22%	-210,000	Jun 30, 2026	carried, not yet filed for the newest quarter
13	ROYCE MICRO-CAP TRUST, INC. Fund · Registered fund · Jun 30, 2026 ROYCE MICRO-CAP TRUST, INC., not summed	638,102	1.95%	—	Jun 30, 2026	ROYCE MICRO-CAP TRUST, INC., not summed
14	First Eagle Investment Management, LLC 13F CIK 1325447 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	520,000	1.59%	-210,437	Jun 30, 2026	carried, not yet filed for the newest quarter
14.1	First Eagle Small Cap Opportunity Fund Fund S000072438 · Registered fund · Jul 31, 2026 First Eagle Funds, not summed	462,160	1.41%	-38,182	Jul 31, 2026	First Eagle Funds, not summed
15	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	516,614	1.58%	+850	Jun 30, 2026	carried, not yet filed for the newest quarter
15.1	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	8,700	0.03%	+2,100	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
15.2	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	369	0.00%	0	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
16	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	513,876	1.57%	+365,845	Jun 30, 2026	carried, not yet filed for the newest quarter
17	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	510,566	1.56%	+35,654	Jun 30, 2026	carried, not yet filed for the newest quarter
18	DIMENSIONAL FUND ADVISORS LP 13F CIK 354204 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	462,637	1.42%	-30,260	Jun 30, 2026	carried, not yet filed for the newest quarter
18.1	Dimensional U.S. Small Cap ETF Fund S000070906 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	73,010	0.22%	-34,818	Jul 31, 2026	Dimensional ETF Trust, not summed
18.2	Dimensional U.S. Core Equity 2 ETF Fund S000070903 · Registered fund · Jul 31, 2026 Dimensional ETF Trust, not summed	66,091	0.20%	0	Jul 31, 2026	Dimensional ETF Trust, not summed
18.3	U.S. SMALL CAP PORTFOLIO Fund S000000971 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	66,019	0.20%	+10,900	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
18.4	U.S. MICRO CAP PORTFOLIO Fund S000000948 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	46,262	0.14%	+8,200	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
18.5	U.S. Small Cap Growth Portfolio Fund S000039439 · Registered fund · Jul 31, 2026 DFA INVESTMENT DIMENSIONS GROUP INC, not summed	40,974	0.13%	0	Jul 31, 2026	DFA INVESTMENT DIMENSIONS GROUP INC, not summed
19	Shribman Daniel Insider CIK 1772389 · May 29, 2026 Director, issuer-wide	361,796	1.11%	+230,403	May 29, 2026	Director, issuer-wide
20	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	307,721	0.94%	+34,046	Jun 30, 2026	carried, not yet filed for the newest quarter
21	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	300,263	0.92%	+190,281	Jun 30, 2026	carried, not yet filed for the newest quarter
22	TUDOR INVESTMENT CORP ET AL 13F CIK 923093 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	275,387	0.84%	+128,087	Jun 30, 2026	carried, not yet filed for the newest quarter
23	CIBC Bancorp USA Inc. 13F CIK 1711924 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	256,462	0.79%	+115	Jun 30, 2026	carried, not yet filed for the newest quarter
24	Point72 Asset Management, L.P. 13F CIK 1603466 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	243,692	0.75%	+65,197	Jun 30, 2026	carried, not yet filed for the newest quarter
25	Colucci Anthony Insider CIK 1803739 · Feb 27, 2026 Chief Financial Officer, issuer-wide	241,809	0.74%	+20,366	Feb 27, 2026	Chief Financial Officer, issuer-wide
26	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	228,846	0.70%	+40,650	Jun 30, 2026	carried, not yet filed for the newest quarter
26.1	Goldman Sachs Absolute Return Tracker Fund Fund S000020314 · Registered fund · Jun 30, 2026 GOLDMAN SACHS TRUST, not summed	27,449	0.08%	+6,566	Jun 30, 2026	GOLDMAN SACHS TRUST, not summed
27	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	219,206	0.67%	-808	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
28	JACOBS LEVY EQUITY MANAGEMENT, INC 13F CIK 884414 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	216,739	0.66%	+95,624	Jun 30, 2026	carried, not yet filed for the newest quarter
29	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	187,063	0.57%	+48,935	Jun 30, 2026	carried, not yet filed for the newest quarter
30	WOLVERINE ASSET MANAGEMENT LLC 13F CIK 1279891 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	177,840	0.54%	+127,520	Jun 30, 2026	carried, not yet filed for the newest quarter
31	MILLENNIUM MANAGEMENT LLC 13F CIK 1273087 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	172,585	0.53%	+42,953	Jun 30, 2026	carried, not yet filed for the newest quarter
32	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	156,130	0.48%	+327	Jun 30, 2026	carried, not yet filed for the newest quarter
32.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	8,243	0.03%	-2,949	Jun 30, 2026	Northern Funds, not summed
33	BNP PARIBAS ARBITRAGE, SA 13F CIK 1166588 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	151,899	0.47%	-6,019	Jun 30, 2026	carried, not yet filed for the newest quarter
34	RBF Capital, LLC 13F CIK 1134621 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	148,760	0.46%	-31,196	Jun 30, 2026	carried, not yet filed for the newest quarter
35	Register Financial Advisors LLC 13F CIK 1962636 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	146,635	0.45%	+37,524	Jun 30, 2026	carried, not yet filed for the newest quarter
36	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	142,715	0.44%	+8,925	Jun 30, 2026	carried, not yet filed for the newest quarter
37	Quantinno Capital Management LP 13F CIK 1759654 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	139,866	0.43%	+25,833	Jun 30, 2026	carried, not yet filed for the newest quarter
38	GSA CAPITAL PARTNERS LLP 13F CIK 1362033 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	132,923	0.41%	-2,415	Jun 30, 2026	carried, not yet filed for the newest quarter
39	STUDDERT ANDREW P Insider CIK 1053465 · May 29, 2026 Director, issuer-wide	131,716	0.40%	+14,903	May 29, 2026	Director, issuer-wide
40	Brubaker Craig Insider CIK 1919311 · Mar 18, 2025 Chief Operating Officer, issuer-wide	112,832	0.35%	+14,192	Mar 18, 2025	Chief Operating Officer, issuer-wide
41	Connor, Clark & Lunn Investment Management Ltd. 13F CIK 1596800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	108,287	0.33%	+66,016	Jun 30, 2026	carried, not yet filed for the newest quarter
42	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	101,375	0.31%	+55,441	Jun 30, 2026	carried, not yet filed for the newest quarter
43	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · May 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	101,152	0.31%	+4,298	May 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
44	Squarepoint Ops LLC 13F CIK 1642575 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	100,657	0.31%	-23,988	Jun 30, 2026	carried, not yet filed for the newest quarter
45	Meixler Investment Management, Ltd. 13F CIK 1911615 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	92,742	0.28%	-325	Jun 30, 2026	carried, not yet filed for the newest quarter
46	ARISTEIA CAPITAL, L.L.C. 13F CIK 1080171 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	89,286	0.27%	+89,286	Jun 30, 2026	carried, not yet filed for the newest quarter
47	STRS OHIO 13F CIK 820478 · Pension or benefit plan · Jun 30, 2026 carried, not yet filed for the newest quarter	87,900	0.27%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
48	Walleye Capital LLC 13F CIK 1758720 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	87,812	0.27%	+87,812	Jun 30, 2026	carried, not yet filed for the newest quarter
49	Hoover Jeffrey Alan Insider CIK 2010490 · Feb 27, 2026 Chief Legal Officer, issuer-wide	84,730	0.26%	+42,217	Feb 27, 2026	Chief Legal Officer, issuer-wide
50	White Katherine E Insider CIK 1651356 · May 29, 2026 Director, issuer-wide	82,204	0.25%	+14,903	May 29, 2026	Director, issuer-wide

12 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 211 holders

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Key facts CIK 1759824 CUSIP 02128L106 13F (30d) 11 filings 11 filers Visit website Investor relations