Alto Ingredients, Inc.
Alto Ingredients, Inc. (ALTO) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ALTO · as of Mar 31, 2025
Ownership Breakdown
69
Institutional Holders
▼ 12 vs Q4
$22.04M
Total Inst. Value
▼ $11.93M vs Q4
77.49M
Shares Outstanding
freeFloat 89.51%
19.33M
13F Shares Held
▼ 2.44M vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ALTO largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC industrial organic chemicals | 3.55M | 4.81% | 4.81% | $4.05B | May 9, 2025 | ▲ 62.5K |
BLACKROCK, INC. industrial organic chemicals | 2.80M | 3.80% | 3.80% | $3.20B | May 2, 2025 | ▲ 675.7K |
D. E. SHAW & CO., INC. industrial organic chemicals | 1.60M | 2.16% | 2.16% | $1.82B | May 15, 2025 | ▼ 6.0K |
RENAISSANCE TECHNOLOGIES LLC industrial organic chemicals | 1.41M | 1.91% | 1.91% | $1.61B | May 14, 2025 | ▼ 15.5K |
DIMENSIONAL FUND ADVISORS LP industrial organic chemicals | 1.05M | 1.42% | 1.42% | $1.19B | May 13, 2025 | ▼ 221.6K |
CREATIVE FINANCIAL DESIGNS INC /ADV industrial organic chemicals | 981.8K | 1.33% | 1.33% | $1.12B | Apr 23, 2025 | ▼ 2.3K |
GEODE CAPITAL MANAGEMENT, LLC industrial organic chemicals | 963.9K | 1.31% | 1.31% | $1.10B | May 13, 2025 | ▲ 70.0K |
PEAPOD LANE CAPITAL LLC industrial organic chemicals | 942.4K | 1.28% | 1.28% | $1.07B | Apr 30, 2025 | ▲ 3.3K |
GSA CAPITAL PARTNERS LLP industrial organic chemicals | 515.3K | 69.79% | 69.79% | $587.00M | May 8, 2025 | ▲ 119.1K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP industrial organic chemicals | 503.6K | 68.21% | 68.21% | $574.13M | May 14, 2025 | ▼ 382.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
15
Increased
+1.47M shares5
New Positions
first time holders24
Decreased
−3.05M shares0
Sold Out
fully exitedNet shares change (top 50)
1.58M
+1.47M / −3.05M
Net new holders
-4
5 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ALTO insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
2
Buy transactions
5
Sell transactions
0.40
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Graham Auste M CLO & Secretary | May 14, 2026 | Gift | 20,000 | — | — | 233.2K | Form 4 ↗ |
NATHAN GILBERT E director | May 13, 2026 | Purchase | 5,000 | $4.45 | $22.3K | 774.7K | Form 4 ↗ |
NATHAN GILBERT E director | May 12, 2026 | Purchase | 20,000 | $4.61 | $92.2K | 769.7K | Form 4 ↗ |
Benton Todd E COO | Apr 1, 2026 | Tax Withhold | 25,359 | $4.79 | $121.5K | 184.1K | Form 4 ↗ |
Olander Robert R. Chief Financial Officer | Apr 1, 2026 | Tax Withhold | 41,072 | $4.79 | $196.7K | 253.1K | Form 4 ↗ |
Sneed James R Chief Commercial Officer | Apr 1, 2026 | Tax Withhold | 22,265 | $4.79 | $106.6K | 440.9K | Form 4 ↗ |
McGregor Bryon T President & CEO | Apr 1, 2026 | Tax Withhold | 73,062 | $4.79 | $350.0K | 957.9K | Form 4 ↗ |
Graham Auste M CLO & Secretary | Apr 1, 2026 | Tax Withhold | 32,902 | $4.79 | $157.6K | 253.2K | Form 4 ↗ |
Benton Todd E COO | Mar 17, 2026 | Award | 35,730 | — | — | 209.5K | Form 4 ↗ |
Sneed James R Chief Commercial Officer | Mar 17, 2026 | Award | 30,794 | — | — | 463.2K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Alto Ingredients, Inc. (ALTO) is primarily owned by institutional investors, who hold approximately 24.9% of total shares outstanding. Company insiders own approximately 10.49%, while retail and public investors account for the remaining 64.56%.
The largest institutional shareholder of Alto Ingredients, Inc. is VANGUARD GROUP INC, holding approximately 3.55 million shares — equal to 4.81% of outstanding shares — as of March 31, 2025.
A total of 69 institutional investors currently hold ALTO stock, with a combined institutional value of approximately $22,039,806 as of the most recent 13F filing period.
Frequently asked questions
ALTO ownershipAlto Ingredients, Inc. (ALTO) is primarily owned by institutional investors, who hold approximately 24.9% of shares. The largest shareholder is VANGUARD GROUP INC with a 4.81% stake. Company insiders hold 10.49%. Data sourced from SEC Form 13F as of March 31, 2025.