Institutional HoldersBeta

Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.

Alto Ingredients, Inc.

CIK 0000778164ALTO· quarter ending 2026-06-30

Shares outstanding

77,567,564

as of 2026-08-06 · 10-Q cover page, filed 2026-08-07

Held by 13F filers

35,904,255

46.3% of shares outstanding

Holders

132

+30 vs 2026-03-31 · 55 new, 25 exited

Value

$204.5M

shares +11.5% vs prior quarter

Share classes (cover page of the 10-Q filed 2026-08-07, as of 2026-08-06)

Class	Listed	Shares outstanding	Held by 13F filers	% of class	Holders	CUSIP
Common stock	ALTO · NASDAQ	77,567,564	35,904,255	46.3%	132	021513106

Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.

Securities (CUSIPs held in 13F this quarter)

tick to combine

Count	CUSIP	Class (as filers write it)	Holders	Shares held	Class shares	% of class	Value	Options	Mapped via
	021513106	COM	132	35,904,255	77,567,564	46.3%	$204.5M	3 call / 3 put	13DG	holders →

Totals combine the ticked CUSIPs and update as you tick: common-stock classes by default; preferreds, notes, warrants and depositary shares are listed but not counted. "holders →" shows a single CUSIP on its own. Bonds are held as a principal amount, not shares. Options positions are never counted as holdings.

Top holders (132 of 132 · 021513106)

change vs 2026-03-31

#	Filer	Shares	% of class	Value	Change
1	BlackRock, Inc.	5,495,025	7.08%	$31.3M	+4,196,940 (+323.3%)
2	VANGUARD CAPITAL MANAGEMENT LLC	3,212,643	4.14%	$18.3M	+32,432 (+1.0%)
3	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	2,280,128	2.94%	$13.0M	+489,865 (+27.4%)
4	ACADIAN ASSET MANAGEMENT LLC	2,048,492	2.64%	$11.7M	+1,457,928 (+246.9%)
5	GEODE CAPITAL MANAGEMENT, LLC	1,980,080	2.55%	$11.3M	+1,088,965 (+122.2%)
6	Hillsdale Investment Management Inc.	1,703,703	2.20%	$9.7M	+703,000 (+70.3%)
7	RENAISSANCE TECHNOLOGIES LLC	1,518,521	1.96%	$8.7M	-155,136 (-9.3%)
8	STATE STREET CORP	1,230,173	1.59%	$7.0M	+857,326 (+229.9%)
9	TWO SIGMA INVESTMENTS, LP	1,198,890	1.55%	$6.8M	-807,870 (-40.3%)
10	DIMENSIONAL FUND ADVISORS LP	1,143,740	1.47%	$6.5M	+484,472 (+73.5%)
11	Connor, Clark & Lunn Investment Management Ltd.	855,702	1.10%	$4.9M	+470,757 (+122.3%)
12	JACOBS LEVY EQUITY MANAGEMENT, INC	827,481	1.07%	$4.7M	+636,507 (+333.3%)
13	NORTHERN TRUST CORP	784,047	1.01%	$4.5M	+575,287 (+275.6%)
14	CREATIVE FINANCIAL DESIGNS INC /ADV	615,304	0.79%	$3.5M	-154,557 (-20.1%)
15	PANAGORA ASSET MANAGEMENT INC	583,829	0.75%	$3.3M	NEW
16	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	574,674	0.74%	$3.3M	+390,891 (+212.7%)
17	BRIDGEWAY CAPITAL MANAGEMENT, LLC	520,314	0.67%	$3.0M	+32,267 (+6.6%)
18	VANGUARD FIDUCIARY TRUST CO	508,017	0.65%	$2.9M	+33,731 (+7.1%)
19	VANGUARD PORTFOLIO MANAGEMENT LLC	497,008	0.64%	$2.8M	NEW
20	GOLDMAN SACHS GROUP INC	490,240	0.63%	$2.8M	-111,308 (-18.5%)
21	BNP PARIBAS FINANCIAL MARKETS	479,586	0.62%	$2.7M	+263,527 (+122.0%)
22	ALGERT GLOBAL LLC	477,169	0.62%	$2.7M	+356,219 (+294.5%)
23	Empowered Funds, LLC	443,314	0.57%	$2.5M	+32,267 (+7.8%)
24	LPL Financial LLC	343,060	0.44%	$2.0M	+325,006 (+1800.2%)
25	Bank of New York Mellon Corp	314,862	0.41%	$1.8M	+304,788 (+3025.5%)
26	MORGAN STANLEY	299,944	0.39%	$1.7M	-54,078 (-15.3%)
27	WELLS FARGO & COMPANY/MN	295,916	0.38%	$1.7M	+280,806 (+1858.4%)
28	CORSAIR CAPITAL MANAGEMENT, L.P.	266,866	0.34%	$1.5M	+6,666 (+2.6%)
29	Peapod Lane Capital LLC	263,383	0.34%	$1.5M	-143,002 (-35.2%)
30	GSA CAPITAL PARTNERS LLP	232,071	0.30%	$1.3M	+76,316 (+49.0%)
31	D. E. Shaw & Co., Inc.	205,145	0.26%	$1.2M	NEW
32	Timothy G. Youngquist 2020 Irrevocable Trust	189,690	0.24%	$1.1M	NEW
33	Engineers Gate Manager LP	178,077	0.23%	$1.0M	-69,514 (-28.1%)
34	Qube Research & Technologies Ltd	174,590	0.23%	$995K	-795,369 (-82.0%)
35	MILLENNIUM MANAGEMENT LLC	173,360	0.22%	$988K	-1,742,630 (-91.0%)
36	Janney Montgomery Scott LLC	149,266	0.19%	$851K	NEW
37	CANADA PENSION PLAN INVESTMENT BOARD	148,600	0.19%	$847K	+13,400 (+9.9%)
38	GWN SECURITIES INC.	141,910	0.18%	$809K	-2,511 (-1.7%)
39	Point72 Asset Management, L.P.	127,321	0.16%	$726K	-207,309 (-62.0%)
40	Invesco Ltd.	122,729	0.16%	$700K	+85,044 (+225.7%)
41	Nuveen, LLC	121,669	0.16%	$694K	NEW
42	XTX Topco Ltd	112,048	0.14%	$639K	-68,715 (-38.0%)
43	AMERICAN CENTURY COMPANIES INC	110,526	0.14%	$630K	+54,716 (+98.0%)
44	Man Group plc	104,115	0.13%	$593K	NEW
45	UBS Group AG	102,668	0.13%	$585K	-27,781 (-21.3%)
46	SEI INVESTMENTS CO	100,951	0.13%	$575K	+88,948 (+741.0%)
47	HAMILTON CAPITAL PARTNERS, LLC	99,900	0.13%	$569K	NEW
48	HighTower Advisors, LLC	97,727	0.13%	$557K	—
49	RHUMBLINE ADVISERS	95,948	0.12%	$547K	NEW
50	JPMORGAN CHASE & CO	93,739	0.12%	$502K	-26,591 (-22.1%)
51	State of Wyoming	74,876	0.10%	$427K	-14,163 (-15.9%)
52	Russell Investments Group, Ltd.	74,065	0.10%	$417K	+56,390 (+319.0%)
53	DEUTSCHE BANK AG\	72,076	0.09%	$411K	+72,074 (+3603700.0%)
54	AdvisorShares Investments LLC	68,000	0.09%	$388K	-32,000 (-32.0%)
55	STATE OF WISCONSIN INVESTMENT BOARD	67,000	0.09%	$382K	NEW
56	PRICE T ROWE ASSOCIATES INC /MD/	60,607	0.08%	$346K	NEW
57	BARCLAYS PLC	56,161	0.07%	$320K	+6,067 (+12.1%)
58	Caprock Group, LLC	52,150	0.07%	$297K	NEW
59	ALLIANCEBERNSTEIN L.P.	48,780	0.06%	$236K	NEW
60	MetLife Investment Management, LLC	44,079	0.06%	$251K	NEW
61	BANK OF AMERICA CORP /DE/	42,717	0.06%	$243K	-507,577 (-92.2%)
62	KESTRA PRIVATE WEALTH SERVICES, LLC	40,762	0.05%	$232K	NEW
63	FRANKLIN RESOURCES INC	40,630	0.05%	$232K	NEW
64	SBI Securities Co., Ltd.	37,267	0.05%	$212K	+2,189 (+6.2%)
65	AMERIPRISE FINANCIAL INC	36,978	0.05%	$211K	NEW
66	DIVERSIFIED TRUST CO	36,918	0.05%	$210K	NEW
67	Revisor Wealth Management LLC	36,556	0.05%	$208K	NEW
68	Marquette Asset Management, LLC	35,563	0.05%	$203K	NEW
69	CITIGROUP INC	34,076	0.04%	$194K	+23,879 (+234.2%)
70	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	33,848	0.04%	$193K	NEW
71	SIMPLEX TRADING, LLC	32,474	0.04%	$185K	-15,846 (-32.8%)
72	GROUP ONE TRADING LLC	29,582	0.04%	$169K	-63,415 (-68.2%)
73	Squarepoint Ops LLC	29,529	0.04%	$168K	-20,103 (-40.5%)
74	Headlands Technologies LLC	27,281	0.04%	$156K	NEW
75	PRUDENTIAL FINANCIAL INC	27,273	0.04%	$155K	+9,340 (+52.1%)
76	Vanguard Global Advisers, LLC	26,587	0.03%	$152K	—
77	RAYMOND JAMES FINANCIAL INC	26,015	0.03%	$148K	-10,496 (-28.7%)
78	SAGESPRING WEALTH PARTNERS, LLC	25,000	0.03%	$143K	—
79	Susquehanna Portfolio Strategies, LLC	24,924	0.03%	$142K	+12,745 (+104.6%)
80	WINTON GROUP Ltd	24,075	0.03%	$137K	+6,075 (+33.8%)
81	HSBC HOLDINGS PLC	24,000	0.03%	$134K	-13,471 (-36.0%)
82	Retirement Planning Group, LLC	24,000	0.03%	$137K	—
83	DAVENPORT & Co LLC	23,967	0.03%	$137K	NEW
84	STRS OHIO	23,000	0.03%	$131K	NEW
85	Police & Firemen's Retirement System of New Jersey	21,772	0.03%	$124K	NEW
86	MANUFACTURERS LIFE INSURANCE COMPANY, THE	21,311	0.03%	$121K	NEW
87	Kestra Advisory Services, LLC	21,197	0.03%	$121K	NEW
88	PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO	19,565	0.03%	$112K	NEW
89	GK Wealth Management LLC	19,184	0.02%	$109K	NEW
90	Dynamic Advisor Solutions LLC	19,010	0.02%	$108K	NEW
91	O'SHAUGHNESSY ASSET MANAGEMENT, LLC	18,234	0.02%	$104K	NEW
92	SUSQUEHANNA INTERNATIONAL GROUP, LLP	16,978	0.02%	$97K	-1,068,857 (-98.4%)
93	Centiva Capital, LP	16,802	0.02%	$96K	-226,420 (-93.1%)
94	NEW YORK STATE COMMON RETIREMENT FUND	16,500	0.02%	$94K	NEW
95	Caitong International Asset Management Co., Ltd	15,600	0.02%	$89K	NEW
96	INTECH INVESTMENT MANAGEMENT LLC	14,969	0.02%	$85K	NEW
97	TRUIST FINANCIAL CORP	14,700	0.02%	$84K	NEW
98	Prospera Financial Services Inc	14,470	0.02%	$82K	—
99	LAZARD ASSET MANAGEMENT LLC	14,294	0.02%	$81K	NEW
100	VOYA INVESTMENT MANAGEMENT LLC	14,059	0.02%	$80K	NEW
101	Annis Gardner Whiting Capital Advisors, LLC	12,500	0.02%	$71K	NEW
102	Quantbot Technologies LP	12,369	0.02%	$71K	+12,313 (+21987.5%)
103	IMC-Chicago, LLC	11,091	0.01%	$63K	NEW
104	GREAT VALLEY ADVISOR GROUP, INC.	10,240	0.01%	$58K	NEW
105	ZACKS INVESTMENT MANAGEMENT	10,210	0.01%	$58K	NEW
106	Mirae Asset Global Investments Co., Ltd.	9,509	0.01%	$54K	NEW
107	Legal & General Group Plc	7,158	0.01%	$41K	NEW
108	Federation des caisses Desjardins du Quebec	7,002	0.01%	$40K	-9 (-0.1%)
109	Tower Research Capital LLC (TRC)	6,784	0.01%	$39K	NEW
110	Ameritas Investment Partners, Inc.	6,699	0.01%	$38K	NEW
111	USA FINANCIAL FORMULAS	6,194	0.01%	$35K	NEW
112	Financial Management Professionals, Inc.	5,896	0.01%	$34K	—
113	JONES FINANCIAL COMPANIES LLLP	5,314	0.01%	$28K	NEW
114	ROYAL BANK OF CANADA	4,471	0.01%	$26K	+3,531 (+375.6%)
115	FMR LLC	2,821	0.00%	$16K	+2,013 (+249.1%)
116	Larson Financial Group LLC	2,777	0.00%	$16K	+1,277 (+85.1%)
117	OSAIC HOLDINGS, INC.	2,245	0.00%	$13K	+1,570 (+232.6%)
118	Tradewinds Capital Management, LLC	2,173	0.00%	$0	—
119	Sterling Capital Management LLC	1,488	0.00%	$8K	NEW
120	IFP Advisors, Inc	1,317	0.00%	$8K	NEW
121	CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM	1,017	0.00%	$6K	NEW
122	Parallel Advisors, LLC	486	0.00%	$3K	—
123	SIGNATUREFD, LLC	353	0.00%	$2K	NEW
124	Clearstead Advisors, LLC	250	0.00%	$1K	NEW
125	Mosley Wealth Management	225	0.00%	$1K	NEW
126	Arax Advisory Partners	25	0.00%	$143	NEW
127	Union Bancaire Privee, UBP SA	5	0.00%	$22	—
128	Financial Life Planners	4	0.00%	$23	—
129	CoreCap Advisors, LLC	4	0.00%	$23	—
130	Allworth Financial LP	3	0.00%	$18	-1 (-25.0%)
131	FIDUCIARY FINANCIAL ADVISORS	2	0.00%	$11	NEW
132	HOLLENCREST CAPITAL MANAGEMENT	1	0.00%	$6	—

Exited since 2026-03-31 (25 filers; largest 25 shown)

MARSHALL WACE, LLP	−3,337,356
JANE STREET GROUP, LLC	−1,291,477
Walleye Capital LLC	−465,476
CITADEL ADVISORS LLC	−324,286
Truffle Hound Capital, LLC	−235,000
Schonfeld Strategic Advisors LLC	−184,043
HRT FINANCIAL LP	−119,026
BOOTHBAY FUND MANAGEMENT, LLC	−103,516
Brevan Howard Capital Management LP	−94,719
OMERS ADMINISTRATION Corp	−66,300
Hudson Bay Capital Management LP	−48,898
AXQ CAPITAL, LP	−37,684
Leonteq Securities AG	−30,000
Catalyst Funds Management Pty Ltd	−28,200
Diametric Capital, LP	−25,115
Graham Capital Management, L.P.	−16,523
Quadrature Capital Ltd	−15,551
PRELUDE CAPITAL MANAGEMENT, LLC	−15,157
Universal- Beteiligungs- und Servicegesellschaft mbH	−12,154
Balyasny Asset Management L.P.	−11,998
Vontobel Holding Ltd.	−11,551
CreativeOne Wealth, LLC	−10,020
RESOURCES MANAGEMENT CORP /CT/ /ADV	−5,000
QUADRANT CAPITAL GROUP LLC	−813
FIFTH THIRD BANCORP	−1

Large holders from 13D/13G (latest per reporting person, last 2 years)

Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.

Reporting person	Form	Filed	Event	Shares	% of class
BlackRock, Inc.	SCHEDULE 13G	2026-07-27	2026-06-30	5,359,099	6.9%
DOMO Capital Management, LLC	SCHEDULE 13G/A	2026-02-13	2025-12-31	2,658,888	3.4%
Justin R. Dopierala	SCHEDULE 13G/A	2026-02-13	2025-12-31	2,658,888	3.4%
JEC II Associates, LLC	SCHEDULE 13D/A	2025-03-18	2025-03-17	800,000	1%
Radoff Bradley Louis	SCHEDULE 13D/A	2025-03-18	2025-03-17	3,625,000	4.7%
Radoff Family Foundation	SCHEDULE 13D/A	2025-03-18	2025-03-17	325,000	0.4%
Torok Michael	SCHEDULE 13D/A	2025-03-18	2025-03-17	1,300,000	1.7%

Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.