Alto Ingredients (ALTO)
Alto Ingredients on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as industrial organic chemicals.
5.6M
Short interest
settlement 2026-10-15
5.8
Days to cover
+0.8 days vs prior
51.9%
Short share of volume
2026-11-02
87
Fails to deliver
settlement 2026-10-09
Wed 4 Nov
Next earnings
estimated date
$247K
Insider flow, 90 days
2 buys, 0 sells
As of 2026-11-02.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in ALTO is 5,601,582 shares, down 914,747 shares over the last month. Over the last 48 readings it ranged from 404,023 shares (31 July 2025) to 6,516,329 shares (15 September 2026). At the reported average volume of 968K shares a day that is 5.8 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/alto" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 5,601,582 | -5.8% | 968,436 | 5.78 |
| 2026-09-30 | 5,943,360 | -8.8% | 1,180,573 | 5.03 |
| 2026-09-15 | 6,516,329 | +3.2% | 1,122,771 | 5.80 |
| 2026-08-31 | 6,315,309 | +8.4% | 1,552,032 | 4.07 |
| 2026-08-14 | 5,824,043 | -2.7% | 2,446,948 | 2.38 |
| 2026-07-31 | 5,985,139 | +4.4% | 2,370,681 | 2.52 |
| 2026-07-15 | 5,734,199 | +39.2% | 2,269,769 | 2.53 |
| 2026-06-30 | 4,118,629 | +80.8% | 3,185,952 | 1.29 |
| 2026-06-15 | 2,277,827 | -0.6% | 2,460,824 | 1.00 |
| 2026-05-29 | 2,291,177 | +57.5% | 2,222,577 | 1.03 |
| 2026-05-15 | 1,454,213 | -21.7% | 2,568,867 | 1.00 |
| 2026-04-30 | 1,857,808 | +2.1% | 1,219,503 | 1.52 |
| 2026-04-15 | 1,820,337 | +17.1% | 1,447,104 | 1.26 |
| 2026-03-31 | 1,554,891 | +3.7% | 1,368,798 | 1.14 |
| 2026-03-13 | 1,499,882 | +109.9% | 4,809,710 | 1.00 |
| 2026-02-27 | 714,667 | -19.0% | 427,601 | 1.67 |
| 2026-02-13 | 881,890 | +35.3% | 821,127 | 1.07 |
| 2026-01-30 | 651,898 | -4.5% | 885,030 | 1.00 |
| 2026-01-15 | 682,787 | +4.1% | 1,179,920 | 1.00 |
| 2025-12-31 | 655,894 | +2.2% | 1,558,642 | 1.00 |
| 2025-12-15 | 641,656 | +8.7% | 1,378,496 | 1.00 |
| 2025-11-28 | 590,529 | -40.5% | 1,606,772 | 1.00 |
| 2025-11-14 | 992,450 | +127.8% | 4,940,016 | 1.00 |
| 2025-10-31 | 435,746 | -0.9% | 220,648 | 1.97 |
| 2025-10-15 | 439,590 | -12.2% | 267,601 | 1.64 |
| 2025-09-30 | 500,791 | +3.0% | 591,182 | 1.00 |
| 2025-09-15 | 486,393 | -3.3% | 148,470 | 3.28 |
| 2025-08-29 | 503,129 | +7.8% | 181,025 | 2.78 |
| 2025-08-15 | 466,726 | +15.5% | 274,324 | 1.70 |
| 2025-07-31 | 404,023 | -12.0% | 174,215 | 2.32 |
| 2025-07-15 | 459,122 | -9.2% | 209,592 | 2.19 |
| 2025-06-30 | 505,460 | -42.3% | 320,278 | 1.58 |
| 2025-06-13 | 876,230 | +1.1% | 335,986 | 2.61 |
| 2025-05-30 | 866,849 | +10.6% | 310,819 | 2.79 |
| 2025-05-15 | 783,576 | -18.6% | 428,437 | 1.83 |
| 2025-04-30 | 962,030 | -6.7% | 241,084 | 3.99 |
| 2025-04-15 | 1,031,561 | -9.9% | 652,362 | 1.58 |
| 2025-03-31 | 1,144,686 | +12.5% | 802,143 | 1.43 |
| 2025-03-14 | 1,017,253 | +15.3% | 575,596 | 1.77 |
| 2025-02-28 | 882,009 | +28.4% | 830,618 | 1.06 |
| 2025-02-14 | 687,043 | +19.4% | 497,445 | 1.38 |
| 2025-01-31 | 575,384 | -7.5% | 651,602 | 1.00 |
| 2025-01-15 | 622,030 | +17.4% | 681,731 | 1.00 |
| 2024-12-31 | 529,992 | -9.4% | 835,836 | 1.00 |
| 2024-12-13 | 585,330 | -19.8% | 584,283 | 1.00 |
| 2024-11-29 | 729,589 | -25.1% | 736,342 | 1.00 |
| 2024-11-15 | 973,385 | +27.0% | 1,954,944 | 1.00 |
| 2024-10-31 | 766,273 | -13.6% | 459,545 | 1.67 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 2 November 2026, the short share of ALTO volume is 51.9%, down 0.4 points over the last five sessions. Over the last 30 readings it ranged from 36.4% (6 October 2026) to 68.6% (30 October 2026). The latest reading is in line with the 30-session average of 52.8%, on 361K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-11-02 | 188K | 361K | 51.9% | 0 |
| 2026-10-30 | 190K | 277K | 68.6% | 479 |
| 2026-10-29 | 104K | 204K | 51.1% | 3,163 |
| 2026-10-28 | 195K | 341K | 57.3% | 0 |
| 2026-10-27 | 231K | 468K | 49.4% | 1,900 |
| 2026-10-26 | 165K | 316K | 52.3% | 1 |
| 2026-10-23 | 176K | 319K | 55.0% | 0 |
| 2026-10-22 | 182K | 269K | 67.7% | 0 |
| 2026-10-21 | 162K | 303K | 53.4% | 272 |
| 2026-10-20 | 125K | 254K | 49.4% | 0 |
| 2026-10-19 | 251K | 381K | 65.8% | 363 |
| 2026-10-16 | 382K | 737K | 51.9% | 2,722 |
| 2026-10-15 | 259K | 442K | 58.5% | 711 |
| 2026-10-14 | 191K | 356K | 53.6% | 0 |
| 2026-10-13 | 177K | 335K | 52.8% | 107 |
| 2026-10-12 | 187K | 375K | 50.0% | 1,817 |
| 2026-10-09 | 219K | 352K | 62.1% | 0 |
| 2026-10-08 | 119K | 238K | 50.3% | 526 |
| 2026-10-07 | 185K | 412K | 44.9% | 92 |
| 2026-10-06 | 107K | 295K | 36.4% | 906 |
| 2026-10-05 | 168K | 373K | 45.0% | 491 |
| 2026-10-02 | 270K | 464K | 58.2% | 0 |
| 2026-10-01 | 258K | 496K | 52.1% | 30 |
| 2026-09-30 | 153K | 306K | 50.0% | 907 |
| 2026-09-29 | 227K | 531K | 42.8% | 4,238 |
| 2026-09-28 | 174K | 344K | 50.5% | 1,295 |
| 2026-09-25 | 146K | 308K | 47.5% | 1 |
| 2026-09-24 | 210K | 439K | 47.9% | 9,956 |
| 2026-09-23 | 196K | 390K | 50.3% | 0 |
| 2026-09-22 | 254K | 448K | 56.8% | 900 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 9 October 2026, the fails-to-deliver balance in ALTO is 87 shares, down 2,337 shares over the last settlement date. Over the last 30 readings it ranged from 5 shares (17 July 2026) to 181,369 shares (16 July 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-10-09 | 87 | $3.73 | $325 |
| 2026-10-05 | 2,424 | $3.77 | $9K |
| 2026-09-15 | 3,395 | $3.96 | $13K |
| 2026-09-10 | 886 | $4.02 | $4K |
| 2026-09-09 | 1,038 | $4.11 | $4K |
| 2026-08-31 | 3,191 | $4.07 | $13K |
| 2026-08-27 | 416 | $4.08 | $2K |
| 2026-08-04 | 659 | $4.86 | $3K |
| 2026-07-29 | 895 | $4.45 | $4K |
| 2026-07-27 | 1,878 | $4.64 | $9K |
| 2026-07-22 | 72,811 | $4.98 | $363K |
| 2026-07-20 | 29,065 | $5.84 | $170K |
| 2026-07-17 | 5 | $5.17 | $26 |
| 2026-07-16 | 181,369 | $5.19 | $941K |
| 2026-07-15 | 162,392 | $5.62 | $913K |
| 2026-07-10 | 2,873 | $5.67 | $16K |
| 2026-07-02 | 90 | $5.98 | $538 |
| 2026-06-29 | 28,310 | $5.19 | $147K |
| 2026-06-23 | 2,269 | $5.22 | $12K |
| 2026-06-15 | 209 | $5.70 | $1K |
| 2026-06-11 | 2,303 | $5.66 | $13K |
| 2026-06-09 | 9,943 | $5.63 | $56K |
| 2026-06-05 | 2,394 | $5.52 | $13K |
| 2026-05-20 | 389 | $4.72 | $2K |
| 2026-05-19 | 480 | $4.70 | $2K |
| 2026-05-08 | 785 | $4.54 | $4K |
| 2026-04-24 | 2,777 | $5.31 | $15K |
| 2026-04-20 | 24,983 | $4.94 | $123K |
| 2026-04-10 | 2,059 | $4.87 | $10K |
| 2026-03-23 | 4,422 | $4.16 | $18K |
Insider trades
SEC Form 4, newest first. JSONInsiders at ALTO reported 2 open-market buys worth $247K in the last 90 days and no open-market sells. Latest filing: NATHAN GILBERT E (Director) on 2026-09-14.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-09-14 | NATHAN GILBERT E | Director | Buy | 10K | $3.93 | $39K | 866K |
| 2026-08-11 | NATHAN GILBERT E | Director | Buy | 50K | $4.15 | $208K | 856K |
| 2026-06-23 | Nury Dianne S. | Director | Grant | 24K | $0.00 | $0 | 241K |
| 2026-06-23 | NATHAN GILBERT E | Director | Grant | 32K | $0.00 | $0 | 806K |
| 2026-06-23 | Tank Alan Robert | Director | Grant | 24K | $0.00 | $0 | 60K |
| 2026-06-23 | Gray Maria G | Director | Grant | 24K | $0.00 | $0 | 179K |
| 2026-05-14 | Graham Auste M | CLO & Secretary | Gift | 20K | $0.00 | $0 | 233K |
| 2026-05-13 | NATHAN GILBERT E | Director | Buy | 5K | $4.45 | $22K | 775K |
| 2026-05-12 | NATHAN GILBERT E | Director | Buy | 20K | $4.61 | $92K | 770K |
| 2026-04-01 | Benton Todd E | COO | Tax withholding | 25K | $4.79 | $121K | 184K |
| 2026-04-01 | Olander Robert R. | Chief Financial Officer | Tax withholding | 41K | $4.79 | $197K | 253K |
| 2026-04-01 | Sneed James R | Chief Commercial Officer | Tax withholding | 22K | $4.79 | $107K | 441K |
| 2026-04-01 | McGregor Bryon T | President & CEO | Tax withholding | 73K | $4.79 | $350K | 958K |
| 2026-04-01 | Graham Auste M | CLO & Secretary | Tax withholding | 33K | $4.79 | $158K | 253K |
| 2026-03-17 | Benton Todd E | COO | Grant | 36K | $0.00 | $0 | 209K |
| 2026-03-17 | Sneed James R | Chief Commercial Officer | Grant | 31K | $0.00 | $0 | 463K |
| 2026-03-17 | Olander Robert R. | Chief Financial Officer | Grant | 36K | $0.00 | $0 | 294K |
| 2026-03-17 | Graham Auste M | CLO & Secretary | Grant | 31K | $0.00 | $0 | 286K |
| 2026-03-17 | McGregor Bryon T | President & CEO | Grant | 100K | $0.00 | $0 | 1.0M |
| 2025-08-13 | Sneed James R | Chief Commercial Officer | Buy | 3K | $1.06 | $3K | 432K |
| 2025-07-09 | Gray Maria G | Director | Grant | 37K | $0.00 | $0 | 156K |
| 2025-07-09 | NATHAN GILBERT E | Director | Grant | 49K | $0.00 | $0 | 750K |
| 2025-07-09 | Bezdek Jeremy | Director | Grant | 37K | $0.00 | $0 | 37K |
| 2025-07-09 | Tank Alan Robert | Director | Grant | 37K | $0.00 | $0 | 37K |
| 2025-07-09 | Nury Dianne S. | Director | Grant | 37K | $0.00 | $0 | 217K |
| 2025-04-01 | Graham Auste M | CLO & Secretary | Tax withholding | 23K | $1.12 | $25K | 255K |
| 2025-04-01 | McGregor Bryon T | President & CEO | Tax withholding | 59K | $1.12 | $66K | 931K |
| 2025-04-01 | Olander Robert R. | Chief Financial Officer | Tax withholding | 22K | $1.12 | $25K | 258K |
| 2025-04-01 | Benton Todd E | COO | Tax withholding | 15K | $1.12 | $17K | 174K |
| 2025-03-31 | Graham Auste M | CLO & Secretary | Grant | 48K | $0.00 | $0 | 278K |
| 2025-03-31 | McGregor Bryon T | President & CEO | Grant | 156K | $0.00 | $0 | 990K |
| 2025-03-31 | Sneed James R | Chief Commercial Officer | Grant | 48K | $0.00 | $0 | 429K |
| 2025-03-31 | Olander Robert R. | Chief Financial Officer | Grant | 56K | $0.00 | $0 | 281K |
| 2025-03-31 | Benton Todd E | COO | Grant | 56K | $0.00 | $0 | 189K |
| 2024-11-13 | NATHAN GILBERT E | Director | Buy | 25K | $1.34 | $34K | 701K |
| 2024-11-13 | NATHAN GILBERT E | Director | Buy | 5K | $1.33 | $7K | 31K |
| 2024-11-12 | Olander Robert R. | Chief Financial Officer | Buy | 7K | $1.36 | $10K | 225K |
| 2024-11-12 | McGregor Bryon T | President & CEO | Buy | 37K | $1.36 | $50K | 834K |
| 2024-06-21 | Kandris Michael D | Director | Tax withholding | 135K | $1.28 | $173K | 666K |
| 2024-06-20 | NATHAN GILBERT E | Director | Grant | 37K | $0.00 | $0 | 676K |
| 2024-06-20 | Kieta Douglas L | Director | Grant | 49K | $0.00 | $0 | 316K |
| 2024-06-20 | Gray Maria G | Director | Grant | 37K | $0.00 | $0 | 119K |
| 2024-06-20 | Nury Dianne S. | Director | Grant | 37K | $0.00 | $0 | 181K |
| 2024-04-01 | Kandris Michael D | Director | Tax withholding | 97K | $2.29 | $223K | 802K |
| 2024-04-01 | Olander Robert R. | Chief Financial Officer | Tax withholding | 15K | $2.29 | $35K | 218K |
| 2024-04-01 | McGregor Bryon T | President & CEO | Tax withholding | 42K | $2.29 | $96K | 797K |
| 2024-04-01 | Graham Auste M | Gen. Counsel, VP & Secy | Tax withholding | 15K | $2.29 | $34K | 230K |
| 2024-04-01 | Benton Todd E | Chief Operating Officer | Tax withholding | 7K | $2.29 | $17K | 134K |
| 2024-03-20 | Sneed James R | CCO and VP | Grant | 72K | $0.00 | $0 | 381K |
| 2024-03-20 | Graham Auste M | Gen. Counsel, VP & Secy | Grant | 72K | $0.00 | $0 | 245K |
| 2024-03-20 | Olander Robert R. | Chief Financial Officer | Grant | 83K | $0.00 | $0 | 233K |
| 2024-03-20 | McGregor Bryon T | President & CEO | Grant | 233K | $0.00 | $0 | 839K |
| 2023-09-17 | Olander Robert R. | Chief Financial Officer | Grant | 59K | $0.00 | $0 | 150K |
| 2023-09-17 | McGregor Bryon T | President & CEO | Grant | 150K | $0.00 | $0 | 606K |
| 2023-06-22 | Nury Dianne S. | Director | Grant | 55K | $0.00 | $0 | 144K |
| 2023-06-22 | Kieta Douglas L | Director | Grant | 74K | $0.00 | $0 | 267K |
| 2023-06-22 | NATHAN GILBERT E | Director | Grant | 55K | $0.00 | $0 | 639K |
| 2023-06-22 | Gray Maria G | Director | Grant | 55K | $0.00 | $0 | 82K |
| 2023-06-01 | NATHAN GILBERT E | Director | Buy | 5K | $1.97 | $10K | 584K |
| 2023-05-31 | NATHAN GILBERT E | Director | Buy | 5K | $1.99 | $10K | 579K |
| 2023-03-31 | Graham Auste M | Gen. Counsel, VP & Secy | Grant | 108K | $0.00 | $0 | 173K |
| 2023-03-31 | Sneed James R | CCO and VP | Grant | 108K | $0.00 | $0 | 310K |
| 2023-03-31 | Kandris Michael D | President, CEO & COO | Grant | 350K | $0.00 | $0 | 899K |
| 2023-03-31 | McGregor Bryon T | Chief Financial Officer | Grant | 125K | $0.00 | $0 | 456K |
| 2023-03-17 | NATHAN GILBERT E | Director | Buy | 10K | $1.71 | $17K | 574K |
| 2023-03-16 | Graham Auste M | Gen. Counsel, VP & Secy | Buy | 3K | $1.85 | $5K | 66K |
| 2023-03-16 | NATHAN GILBERT E | Director | Buy | 10K | $1.81 | $18K | 564K |
| 2023-03-15 | NATHAN GILBERT E | Director | Buy | 15K | $1.86 | $28K | 554K |
| 2023-03-14 | Graham Auste M | Gen. Counsel, VP & Secy | Buy | 3K | $1.98 | $5K | 63K |
| 2022-12-16 | NATHAN GILBERT E | Director | Buy | 35K | $2.71 | $95K | 539K |
| 2022-12-16 | Gray Maria G | Director | Buy | 5K | $2.73 | $14K | 27K |
| 2022-06-23 | Gray Maria G | Director | Grant | 20K | $0.00 | $0 | 22K |
| 2022-06-23 | Nury Dianne S. | Director | Grant | 20K | $0.00 | $0 | 89K |
| 2022-06-23 | Kieta Douglas L | Director | Grant | 20K | $0.00 | $0 | 193K |
| 2022-06-23 | NATHAN GILBERT E | Director | Grant | 20K | $0.00 | $0 | 504K |
| 2022-06-23 | STONE TERRY L | Director | Grant | 20K | $0.00 | $0 | 180K |
| 2022-06-23 | Jones William L | Director | Grant | 27K | $0.00 | $0 | 210K |
| 2022-06-07 | Wright Christopher W | Other | Tax withholding | 10K | $4.87 | $48K | 72K |
| 2022-05-20 | Kandris Michael D | President, CEO & COO | Buy | 12K | $4.06 | $50K | 549K |
| 2022-05-20 | NATHAN GILBERT E | Director | Buy | 20K | $4.04 | $81K | 484K |
| 2022-04-01 | Graham Auste M | Gen. Counsel, VP & Secy | Tax withholding | 4K | $6.93 | $25K | 61K |
| 2022-04-01 | McGregor Bryon T | Chief Financial Officer | Tax withholding | 20K | $6.93 | $137K | 331K |
| 2022-04-01 | Sneed James R | CCO and VP | Tax withholding | 16K | $6.93 | $109K | 202K |
| 2022-04-01 | Kandris Michael D | President, CEO & COO | Tax withholding | 82K | $6.93 | $569K | 536K |
| 2022-04-01 | Wright Christopher W | Senior VP | Tax withholding | 13K | $6.93 | $93K | 82K |
| 2022-03-30 | Graham Auste M | Gen. Counsel, VP & Secy | Grant | 39K | $0.00 | $0 | 39K |
| 2022-03-30 | Kandris Michael D | President, CEO & COO | Grant | 128K | $0.00 | $0 | 619K |
| 2022-03-30 | McGregor Bryon T | Chief Financial Officer | Grant | 46K | $0.00 | $0 | 351K |
| 2022-03-30 | Sneed James R | CCO and VP | Grant | 35K | $0.00 | $0 | 218K |
| 2022-03-30 | Wright Christopher W | Senior VP | Grant | 15K | $0.00 | $0 | 96K |
| 2022-03-23 | Graham Auste M | Gen. Counsel, VP & Secy | Grant | 25K | $0.00 | $0 | 64K |
| 2021-12-08 | NATHAN GILBERT E | Director | Buy | 10K | $4.96 | $50K | 464K |
| 2021-11-22 | NATHAN GILBERT E | Director | Buy | 5K | $5.16 | $26K | 454K |
| 2021-11-19 | NATHAN GILBERT E | Director | Buy | 5K | $5.13 | $26K | 449K |
| 2021-11-15 | NATHAN GILBERT E | Director | Buy | 15K | $5.47 | $82K | 444K |
| 2021-11-12 | McGregor Bryon T | Chief Financial Officer | Buy | 4K | $5.80 | $23K | 305K |
| 2021-11-12 | Wright Christopher W | VP, Gen. Counsel & Secy | Sell | 66K | $5.73 | $375K | 81K |
| 2021-11-12 | NATHAN GILBERT E | Director | Buy | 10K | $5.73 | $57K | 429K |
| 2021-08-30 | NATHAN GILBERT E | Director | Buy | 9K | $4.85 | $41K | 419K |
| 2021-08-20 | NATHAN GILBERT E | Director | Buy | 6K | $4.45 | $27K | 410K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of ALTO in its latest filing, on Schedule 13G (passive). The holder is BlackRock, Inc. at 6.9% of the class (5,359,099 shares), filed 2026-07-27 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-07-27 | 13G | BlackRock, Inc.parent holding company | 5.4M | 6.9% | 2026-06-30 |
| 2026-02-13 | 13G/Ano. 1 | DOMO Capital Management, LLCinvestment adviser | 2.7M | 3.4% | 2025-12-31 |
| 2026-02-13 | 13G/Ano. 1 | Justin R. Dopieralaparent holding company, individual | 2.7M | 3.4% | 2025-12-31 |
13F holders
Tracked managers holding ALTO at their latest 13F. JSON5 of the 30 tracked managers held ALTO at their latest 13F, $18.4M in total at quarter-end prices. Renaissance Technologies is the largest at $8.7M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 4 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Renaissance Technologies | 2026-06-30 | 1.5M | $8.7M | 0.01% | -155K |
| Two Sigma Investments | 2026-06-30 | 1.2M | $6.8M | 0.00% | -808K |
| D. E. Shaw & Co. | 2026-06-30 | 205K | $1.2M | 0.00% | new |
| Millennium Management | 2026-06-30 | 173K | $988K | 0.00% | -1.7M |
| Point72 Asset Management | 2026-06-30 | 127K | $726K | 0.00% | -207K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
Alto Ingredients in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Alto Ingredients (ALTO), SEC CIK 778164, listed on Nasdaq, classified by the SEC as industrial organic chemicals. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-11-02.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-10-09.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-07-27.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-05.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-09-14.JSON and CSV
- Company record
- EDGAR filing index for CIK 778164Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of ALTO is sold short?
5,601,582 shares were held short at the 2026-10-15 settlement, 5.8 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is ALTO's daily short volume?
On 2026-11-02, 187,650 of the 361,348 ALTO shares reported to FINRA were sold short, 51.9% of the day's reported volume. Short volume is a flow for one day, not a position.
Does ALTO have fails to deliver?
The SEC's latest file shows 87 ALTO shares failed to deliver at settlement 2026-10-09. Fails are reported per settlement date and published twice a month with a lag.
Are ALTO insiders buying or selling?
Insiders at ALTO reported 2 open-market buys worth $247K in the last 90 days and no open-market sells. Latest filing: NATHAN GILBERT E (Director) on 2026-09-14.
Who owns 5% or more of ALTO?
1 holder reports 5% or more of ALTO in its latest filing, on Schedule 13G (passive). The holder is BlackRock, Inc. at 6.9% of the class (5,359,099 shares), filed 2026-07-27 for an event on 2026-06-30.
Which tracked 13F managers own ALTO?
5 of the 30 tracked 13F managers held ALTO shares at their latest filing, $18.4M in all. The largest: Renaissance Technologies (1.5M shares, $8.7M), Two Sigma Investments (1.2M shares, $6.8M), D. E. Shaw & Co. (205K shares, $1.2M), Izzy Englander's Millennium Management (173K shares, $988K), Steve Cohen's Point72 Asset Management (127K shares, $726K).
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.