Aemetis (AMTX)

Aemetis on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as industrial organic chemicals.

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7.9M

Short interest

settlement 2026-09-30

7.9

Days to cover

-5.5 days vs prior

69.0%

Short share of volume

2026-10-12

50,410

Fails to deliver

settlement 2026-09-11

Thu 5 Nov

Next earnings

estimated date

Insider flow, 90 days

0 buys, 0 sells

As of 2026-10-12.

Short interest

FINRA, twice a month. The newest 24 settlements in the table, 48 in the chart. JSON

As of 30 September 2026, short interest in AMTX is 7,859,524 shares, down 918,653 shares over the last month. Over the last 48 readings it ranged from 3,686,377 shares (14 November 2025) to 10,333,640 shares (30 April 2025). At the reported average volume of 991K shares a day that is 7.9 days to cover.

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Settlement	Shares short	Change	Avg daily volume	Days to cover
2026-09-30	7,859,524	-14.7%	991,446	7.93
2026-09-15	9,213,400	+5.0%	684,858	13.45
2026-08-31	8,778,177	+1.3%	833,812	10.53
2026-08-14	8,662,779	-0.3%	790,878	10.95
2026-07-31	8,690,019	+15.3%	1,026,163	8.47
2026-07-15	7,537,707	+6.3%	962,212	7.83
2026-06-30	7,091,402	+36.7%	1,828,447	3.88
2026-06-15	5,187,972	+7.9%	1,014,370	5.11
2026-05-29	4,809,572	+3.0%	1,281,815	3.75
2026-05-15	4,668,788	-8.7%	1,954,440	2.39
2026-04-30	5,111,674	-1.1%	1,733,706	2.95
2026-04-15	5,167,475	+8.7%	1,563,057	3.31
2026-03-31	4,753,347	+1.3%	2,546,521	1.87
2026-03-13	4,691,245	-15.3%	1,305,036	3.59
2026-02-27	5,537,109	+4.0%	399,310	13.87
2026-02-13	5,326,113	+4.4%	1,007,440	5.29
2026-01-30	5,100,852	+5.7%	1,219,085	4.18
2026-01-15	4,825,790	-1.4%	761,219	6.34
2025-12-31	4,893,090	+9.4%	924,543	5.29
2025-12-15	4,470,821	+0.1%	758,562	5.89
2025-11-28	4,468,159	+21.2%	910,864	4.91
2025-11-14	3,686,377	-6.3%	1,107,223	3.33
2025-10-31	3,934,692	+2.2%	1,268,006	3.10
2025-10-15	3,848,976	-12.5%	1,803,102	2.13

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 12 October 2026, the short share of AMTX volume is 69.0%, up 7.4 points over the last five sessions. Over the last 30 readings it ranged from 40.5% (28 September 2026) to 71.6% (16 September 2026). The latest reading sits at the top of that range. The latest reading is 7.9 points above the 30-session average of 61.2%, on 317K shares reported.

Date	Short volume	Total volume	Short share	Exempt
2026-10-12	219K	317K	69.0%	0
2026-10-09	224K	342K	65.6%	12,480
2026-10-08	84K	168K	49.9%	517
2026-10-07	73K	134K	54.7%	16
2026-10-06	108K	167K	64.5%	0
2026-10-05	157K	255K	61.6%	0
2026-10-02	188K	271K	69.2%	50
2026-10-01	242K	338K	71.6%	0
2026-09-30	138K	228K	60.7%	3,155
2026-09-29	170K	289K	58.7%	40
2026-09-28	176K	435K	40.5%	4,615
2026-09-25	198K	302K	65.5%	1,193
2026-09-24	321K	486K	66.1%	26,719
2026-09-23	341K	535K	63.8%	2,069
2026-09-22	190K	285K	66.6%	16
2026-09-21	293K	526K	55.6%	0
2026-09-18	331K	680K	48.6%	500
2026-09-17	169K	255K	66.4%	32
2026-09-16	170K	237K	71.6%	12,599
2026-09-15	125K	214K	58.5%	0
2026-09-14	133K	205K	65.1%	3,500
2026-09-11	230K	421K	54.6%	100
2026-09-10	356K	588K	60.7%	890
2026-09-09	244K	354K	68.9%	1,970
2026-09-08	178K	282K	63.1%	333
2026-09-04	239K	429K	55.7%	11,609
2026-09-03	119K	196K	61.0%	0
2026-09-02	188K	305K	61.6%	0
2026-09-01	116K	211K	54.9%	0
2026-08-31	177K	293K	60.4%	0

Fails to deliver

SEC, the last 30 settlement dates with a fail. JSON

As of 11 September 2026, the fails-to-deliver balance in AMTX is 50,410 shares, up 32,326 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (31 August 2026) to 818,296 shares (30 June 2026). The latest reading sits at the bottom of that range.

Settlement	Shares failed	Price	Value
2026-09-11	50,410	$2.03	$102K
2026-09-03	18,084	$1.90	$34K
2026-09-02	4,217	$1.82	$8K
2026-08-31	1	$1.86	$2
2026-08-25	8,093	$1.89	$15K
2026-08-24	17,708	$2.07	$37K
2026-08-21	399	$1.92	$766
2026-08-18	443	$1.80	$797
2026-08-14	45,255	$1.74	$79K
2026-08-13	3,639	$1.75	$6K
2026-08-12	245	$1.70	$417
2026-08-06	242	$1.55	$375
2026-08-05	24,693	$1.62	$40K
2026-08-04	14,856	$1.52	$23K
2026-08-03	105,807	$1.51	$160K
2026-07-31	968	$1.56	$2K
2026-07-30	9,735	$1.41	$14K
2026-07-29	17,095	$1.48	$25K
2026-07-28	602	$1.56	$939
2026-07-27	135	$1.69	$228
2026-07-23	7	$1.71	$12
2026-07-21	54,811	$1.46	$80K
2026-07-20	34,597	$1.57	$54K
2026-07-16	16,114	$1.63	$26K
2026-07-07	279	$1.71	$477
2026-07-01	64,568	$1.64	$106K
2026-06-30	818,296	$1.69	$1.4M
2026-06-29	748,918	$1.71	$1.3M
2026-06-25	77,315	$1.66	$128K
2026-06-24	52	$1.80	$94

Insider trades

SEC Form 4, newest first, 50 of 100 shown. JSON

No open-market insider trades were reported for AMTX in the last 90 days. The most recent filings are listed below. Latest filing: Simon Timothy Alan (Director) on 2026-06-10.

Date	Insider	Title	Type	Shares	Price	Value	Owned after
2026-06-10	Simon Timothy Alan	Director	Sell	10K	$2.05	$21K	43K
2026-03-19	BLOCK JOHN R	Director	Grant	10K	$2.64	$26K	56K
2026-03-19	MCAFEE ERIC A	Chief Executive Officer	Grant	300K	$2.64	$792K	3.9M
2026-01-22	Simon Timothy Alan	Director	Grant	12K	$1.54	$18K	53K
2026-01-22	BLOCK JOHN R	Director	Grant	12K	$1.54	$18K	46K
2026-01-22	BARTON FRANCIS P	Director	Grant	18K	$1.54	$28K	227K
2026-01-22	Beebe Lydia I	Director	Grant	15K	$1.54	$22K	214K
2026-01-22	Boness Naomi Louise	Director	Grant	12K	$1.54	$18K	65K
2025-08-14	BARTON FRANCIS P	Director	Sell	8K	$2.53	$20K	209K
2025-08-14	BARTON FRANCIS P	Director	Sell	5K	$2.53	$13K	217K
2025-08-14	BARTON FRANCIS P	Director	Sell	12K	$2.53	$31K	222K
2025-08-14	BARTON FRANCIS P	Director	Sell	1K	$2.53	$3K	234K
2025-06-09	Simon Timothy Alan	Director	Disposition	10K	$1.98	$21K	50K
2025-06-09	Simon Timothy Alan	Director	Disposition	5K	$1.98	$9K	41K
2025-06-09	Simon Timothy Alan	Director	Disposition	5K	$1.98	$10K	45K
2025-05-15	ROCKETT JAMES MICHAEL	EVP, General Counsel	Grant	28K	$1.63	$46K	28K
2025-04-07	Waltz Todd	Executive Vice President, CFO	Option exercise	37K	$0.70	$26K	449K
2025-04-07	Waltz Todd	Executive Vice President, CFO	Option exercise	8K	$0.86	$6K	457K
2025-04-07	Waltz Todd	Executive Vice President, CFO	Option exercise	5K	$1.71	$9K	223K
2025-04-07	Waltz Todd	Executive Vice President, CFO	Option exercise	63K	$0.60	$38K	313K
2025-04-07	Waltz Todd	Executive Vice President, CFO	Option exercise	70K	$0.70	$49K	413K
2025-04-07	Waltz Todd	Executive Vice President, CFO	Option exercise	50K	$0.70	$35K	218K
2025-04-07	Waltz Todd	Executive Vice President, CFO	Option exercise	27K	$0.92	$25K	250K
2025-04-07	Waltz Todd	Executive Vice President, CFO	Option exercise	30K	$0.67	$20K	343K
2025-01-16	BLOCK JOHN R	Director	Grant	12K	$0.00	$0	38K
2025-01-16	BARTON FRANCIS P	Director	Grant	18K	$0.00	$0	235K
2025-01-16	Beebe Lydia I	Director	Grant	15K	$0.00	$0	200K
2025-01-16	Simon Timothy Alan	Director	Grant	12K	$0.00	$0	61K
2025-01-16	Boness Naomi Louise	Director	Grant	12K	$0.00	$0	51K
2025-01-16	MCAFEE ERIC A	Chief Executive Officer	Grant	300K	$0.00	$0	3.6M
2024-11-21	Simon Timothy Alan	Director	Grant	5K	$0.00	$0	49K
2024-11-21	Beebe Lydia I	Director	Grant	15K	$0.00	$0	185K
2024-11-21	BARTON FRANCIS P	Director	Grant	20K	$0.00	$0	217K
2024-11-21	Boness Naomi Louise	Director	Grant	12K	$0.00	$0	39K
2024-11-21	BLOCK JOHN R	Director	Grant	12K	$0.00	$0	26K
2024-05-23	BLOCK JOHN R	Director	Sell	52K	$3.49	$180K	14K
2024-01-18	MCAFEE ERIC A	Chief Executive Officer	Grant	300K	$0.00	$0	3.3M
2024-01-18	BARTON FRANCIS P	Director	Grant	17K	$0.00	$0	197K
2024-01-18	Beebe Lydia I	Director	Grant	14K	$0.00	$0	170K
2024-01-18	Simon Timothy Alan	Director	Grant	11K	$0.00	$0	43K
2024-01-18	Boness Naomi Louise	Director	Grant	11K	$0.00	$0	27K
2024-01-18	BLOCK JOHN R	Director	Grant	11K	$0.00	$0	66K
2023-09-12	Boness Naomi Louise	Director	Sell	5K	$5.65	$28K	25K
2023-09-12	Boness Naomi Louise	Director	Sell	1K	$5.65	$7K	30K
2023-09-12	Boness Naomi Louise	Director	Sell	9K	$5.65	$49K	16K
2023-06-16	BLOCK JOHN R	Director	Sell	19K	$6.30	$121K	27K
2023-06-15	BLOCK JOHN R	Director	Option exercise	10K	$2.59	$26K	50K
2023-06-15	BLOCK JOHN R	Director	Tax withholding	4K	$6.84	$26K	46K
2023-06-15	BLOCK JOHN R	Director	Tax withholding	23K	$6.84	$155K	55K
2023-06-15	BLOCK JOHN R	Director	Option exercise	50K	$3.09	$155K	77K

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.

Planned sales (Form 144)

Newest first. JSON

1 Form 144 notice on file for AMTX worth $20K at the prices reported; 0 in the last 90 days worth $0. Latest: Simon Timothy Alan filed on 2026-06-10 to sell 10,000 shares ($20K) from 2026-06-10.

Filed	Seller	Shares	Market value	Of outstanding	Sale from	Broker
2026-06-10	Simon Timothy AlanDirector	10K	$20K	0.014%	2026-06-10	Raymond James & Associates

Large holders (13D and 13G)

One row per reporting person with its latest filing, newest first. JSON

1 holder reports 5% or more of AMTX in its latest filing, on Schedule 13G (passive). The holder is BlackRock, Inc. at 5.6% of the class (3,970,397 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	4.0M	5.6%	2026-06-30

13F holders

Tracked managers holding AMTX at their latest 13F. JSON

4 of the 30 tracked managers held AMTX at their latest 13F, $2.5M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $1.0M (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 1 added shares and 3 cut.

Fund	Quarter	Shares	Value	Of portfolio	Change in shares
D. E. Shaw & Co.	2026-06-30	623K	$1.0M	0.00%	+78K
Millennium Management	2026-06-30	396K	$650K	0.00%	-20K
Citadel Advisors	2026-06-30	267K	$438K	0.00%	-202K
Two Sigma Investments	2026-06-30	267K	$438K	0.00%	-113K

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

Aemetis 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 Aemetis (AMTX), SEC CIK 738214, 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 2026-09-30.JSON and CSV
Daily short volume: FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-12.JSON and CSV
Fails to deliver: SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-11.JSON and CSV
Planned sales: SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-06-10.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 2026-08-06.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 2026-06-10.JSON and CSV
Company record: EDGAR filing index for CIK 738214Ticker, 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.

Other companies the SEC classifies as industrial organic chemicals

Other company pages

Datasets

Frequently Asked Questions

How much of AMTX is sold short?

7,859,524 shares were held short at the 2026-09-30 settlement, 7.9 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 AMTX's daily short volume?

On 2026-10-12, 218,547 of the 316,675 AMTX shares reported to FINRA were sold short, 69.0% of the day's reported volume. Short volume is a flow for one day, not a position.

Does AMTX have fails to deliver?

The SEC's latest file shows 50,410 AMTX shares failed to deliver at settlement 2026-09-11. Fails are reported per settlement date and published twice a month with a lag.

Are AMTX insiders buying or selling?

No open-market insider trades were reported for AMTX in the last 90 days. The most recent filings are listed below. Latest filing: Simon Timothy Alan (Director) on 2026-06-10.

Have AMTX insiders filed to sell?

1 Form 144 notice on file for AMTX worth $20K at the prices reported; 0 in the last 90 days worth $0. Latest: Simon Timothy Alan filed on 2026-06-10 to sell 10,000 shares ($20K) from 2026-06-10.

Who owns 5% or more of AMTX?

Which tracked 13F managers own AMTX?

4 of the 30 tracked 13F managers held AMTX shares at their latest filing, $2.5M in all. The largest: D. E. Shaw & Co. (623K shares, $1.0M), Izzy Englander's Millennium Management (396K shares, $650K), Ken Griffin's Citadel Advisors (267K shares, $438K), Two Sigma Investments (267K shares, $438K).

Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.