XOOMAR
Get a free API key

Atlas Critical Minerals (ATCX)

Atlas Critical Minerals on one page: short interest, daily short volume, fails to deliver, large holders and insider trades. Listed on Nasdaq, classified by the SEC as gold and silver ores.

Download CSV

22K

Short interest

settlement 2026-09-30

1.0

Days to cover

-1.1 days vs prior

31.8%

Short share of volume

2026-10-12

520

Fails to deliver

settlement 2026-09-09

$0

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 ATCX is 22,321 shares, down 7,220 shares over the last month. Over the last 48 readings it ranged from 12,536 shares (15 January 2026) to 1,316,267 shares (14 April 2023). The latest reading sits at the bottom of that range. At the reported average volume of 32K shares a day that is 1.0 days to cover.

Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/atcx" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
PreviewDark previewAdd ?theme=dark to the src for a dark chart.
SettlementShares shortChangeAvg daily volumeDays to cover
2026-09-3022,321-4.6%31,5191.00
2026-09-1523,403-20.8%11,0472.12
2026-08-3129,541-9.2%7,6513.86
2026-08-1432,520-14.9%13,9362.33
2026-07-3138,208-47.8%10,5713.61
2026-07-1573,181+154.3%9,7097.54
2026-06-3028,772-65.3%11,1482.58
2026-06-1582,867+22.2%23,0633.59
2026-05-2967,798+37.1%27,5632.46
2026-05-1549,448-32.3%22,7892.17
2026-04-3073,076-7.6%49,2761.48
2026-04-1579,061+34.3%40,8941.93
2026-03-3158,873+99.3%30,4921.93
2026-03-1329,542-8.0%51,7171.00
2026-02-2732,103-47.7%62,4591.00
2026-02-1361,420+4.6%89,2841.00
2026-01-3058,738+368.6%260,7011.00
2026-01-1512,536+51.0%73,5381.00
2023-04-141,316,267+40.4%166,3187.91
2023-03-31937,632+39.5%261,8773.58
2023-03-15672,114+22.7%287,5802.34
2023-02-28547,815+17.3%379,2481.44
2023-02-15467,021-14.6%633,8541.00
2023-01-31546,532+9.0%1,138,7821.00

Daily short volume

FINRA Reg SHO, the last 30 sessions. JSON

As of 12 October 2026, the short share of ATCX volume is 31.8%, down 19.4 points over the last five sessions. Over the last 30 readings it ranged from 1.4% (18 September 2026) to 80.1% (9 September 2026). The latest reading is 2.3 points below the 30-session average of 34.2%, on 5K shares reported.

DateShort volumeTotal volumeShort shareExempt
2026-10-122K5K31.8%0
2026-10-095K7K71.9%0
2026-10-082K5K43.0%0
2026-10-071K5K19.8%0
2026-10-0613K29K44.4%0
2026-10-052K4K51.3%0
2026-10-0216K28K57.7%0
2026-10-0131K61K51.4%0
2026-09-3017K69K25.3%0
2026-09-2925K73K33.6%0
2026-09-281K5K20.7%0
2026-09-252K19K8.0%0
2026-09-241K2K43.3%0
2026-09-23165927.1%0
2026-09-223K6K41.9%0
2026-09-21606609.1%0
2026-09-18212K1.4%0
2026-09-171K4K29.9%0
2026-09-162K10K19.3%0
2026-09-152853K9.1%0
2026-09-1413K20K66.9%0
2026-09-113K4K78.6%0
2026-09-109353K34.3%0
2026-09-095K6K80.1%0
2026-09-084343K16.9%0
2026-09-041K5K23.5%502
2026-09-034K14K29.8%0
2026-09-021K4K31.2%0
2026-09-012643K7.6%0
2026-08-313242K16.0%0

Fails to deliver

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

As of 9 September 2026, the fails-to-deliver balance in ATCX is 520 shares, up 4 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (23 April 2026) to 2,955 shares (15 April 2026).

SettlementShares failedPriceValue
2026-09-09520$3.02$2K
2026-09-08516$3.12$2K
2026-09-04291$3.11$905
2026-08-111,143$3.14$4K
2026-07-1021$3.50$74
2026-07-07109$3.55$387
2026-07-02209$3.70$773
2026-06-30312$3.65$1K
2026-06-26140$3.80$532
2026-06-08466$3.71$2K
2026-06-04945$4.11$4K
2026-05-28383$4.37$2K
2026-05-27490$4.43$2K
2026-05-082,162$5.87$13K
2026-05-07121$5.70$690
2026-05-061,129$5.55$6K
2026-05-051,352$5.54$7K
2026-04-29822$5.26$4K
2026-04-281,369$5.01$7K
2026-04-27384$5.01$2K
2026-04-231$5.17$5
2026-04-171,684$5.06$9K
2026-04-16655$4.96$3K
2026-04-152,955$5.33$16K
2026-04-14835$5.22$4K
2026-04-02512$5.73$3K
2026-03-25191$5.16$986
2026-03-19244$5.66$1K
2026-03-18448$6.01$3K
2026-03-17237$5.91$1K

Insider trades

SEC Form 4, newest first. JSON

No open-market insider trades were reported for ATCX in the last 90 days. The most recent filings are listed below. Latest filing: Fogassa Marc (CEO and Chairman) on 2026-09-30.

DateInsiderTitleTypeSharesPriceValueOwned after
2026-09-30Fogassa MarcCEO and ChairmanGrant8K$0.00$01.3M
2026-08-31Fogassa MarcCEO and ChairmanGrant8K$0.00$01.3M
2026-08-03Tkachenko IgorVP, Corporate StrategyGrant19K$0.00$043K
2026-07-31Fogassa MarcCEO and ChairmanGrant8K$0.00$01.3M
2026-06-30Fogassa MarcCEO and ChairmanGrant6K$0.00$01.2M
2026-05-31Fogassa MarcCEO and ChairmanGrant5K$0.00$01.2M
2026-04-30Fogassa MarcCEO and ChairmanGrant5K$0.00$01.2M
2026-03-31Fogassa MarcCEO and ChairmanGrant4K$0.00$01.2M

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. JSON

2 holders report 5% or more of ATCX in their latest filing, 1 on Schedule 13D (active intent). The largest reported stake is Marc Fogassa at 24.5% of the class (1,222,884 shares), filed 2026-03-06 for an event on 2026-01-08.

FiledFormHolderSharesOf classEvent
2026-05-1513G/Ano. 1Citadel Advisors Holdings LPparent holding company, partnership44K0.9%2026-03-31
2026-05-1513G/Ano. 1Citadel GP LLCparent holding company, other entity44K0.9%2026-03-31
2026-05-1513G/Ano. 1Kenneth Griffinparent holding company, individual44K0.9%2026-03-31
2026-05-1513G/Ano. 1Citadel Advisors LLCinvestment adviser, parent holding company, other entity44K0.9%2026-03-31
2026-05-1513G/Ano. 1Citadel Securities Group LPparent holding company, partnership840.0%2026-03-31
2026-05-1513G/Ano. 1Citadel Securities GP LLCparent holding company, other entity840.0%2026-03-31
2026-05-1513G/Ano. 1Citadel Securities LLCbroker-dealer, other entity840.0%2026-03-31
2026-03-0613GMarc Fogassaindividual1.2M24.5%2026-01-08
2026-01-1613DAtlas Lithium Corpcorporation1.0M20.5%2026-01-12

What this page is

Atlas Critical Minerals 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 Atlas Critical Minerals (ATCX), SEC CIK 1684688, listed on Nasdaq, classified by the SEC as gold and silver ores. 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 2026-09-09.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 2026-05-15.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 2026-09-30.JSON and CSV
Company record
EDGAR filing index for CIK 1684688Ticker, 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 gold and silver ores

Datasets

Frequently Asked Questions

How much of ATCX is sold short?
22,321 shares were held short at the 2026-09-30 settlement, 1.0 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 ATCX's daily short volume?
On 2026-10-12, 1,588 of the 4,987 ATCX shares reported to FINRA were sold short, 31.8% of the day's reported volume. Short volume is a flow for one day, not a position.
Does ATCX have fails to deliver?
The SEC's latest file shows 520 ATCX shares failed to deliver at settlement 2026-09-09. Fails are reported per settlement date and published twice a month with a lag.
Are ATCX insiders buying or selling?
No open-market insider trades were reported for ATCX in the last 90 days. The most recent filings are listed below. Latest filing: Fogassa Marc (CEO and Chairman) on 2026-09-30.
Who owns 5% or more of ATCX?
2 holders report 5% or more of ATCX in their latest filing, 1 on Schedule 13D (active intent). The largest reported stake is Marc Fogassa at 24.5% of the class (1,222,884 shares), filed 2026-03-06 for an event on 2026-01-08.

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