Companies / MIO

MACARTHUR MINERALS LIMITED

ASX:MIOMaterials
371.7M shares on issueASX (delayed) · snapshot 11 Sept 2026448.6M fully diluted+20.7% if every option and right converts$0.028price · delayed$10.4Mmarket cap · indicative

Today’s holders own 82.9% of what they think they own, once every option and right converts.

Very high
Dilution risk

Runway under 2 quarters; share count grew 86% in 24 months; 6 cash raises in 24 months

MinimalVery high
Absolute levels — not a ranking against other companies.
Cash runway-0.2 quarters of funding
Share-count growth (24m)86.2%
Raise cadence (24m)6 cash raises
Options & rights overhang20.7% of shares
In-the-money supply0.0% of shares
Pending proposed issuesopen proposed issue (Appendix 3B)

MACARTHUR MINERALS LIMITED's ordinary share count grew 86.2% between August 2024 and June 2026, to 372M shares. The company raised capital six times in the past 24 months for total disclosed proceeds of A$8.4M, most recently a A$3.5M placement in September 2026. Options and rights on issue could convert into 77M new shares, equal to 20.7% of the current share count, with the nearest expiry in January 2027. At the June 2026 quarter the company reported A$-133K in available cash, about -0.2 quarters of funding at its recent spending rate. One proposed securities issue (Appendix 3B) is pending, with an expected issue date in November 2026.

AI-generated summary of this page's cited filings · updated 11 Sept 2026
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20.7%
Options & rights overhang
0.0%
In-the-money supply
3
Raises · last 12 months
-0.2 qtrs
Cash cover · under 2 quarters

Shares on issue — last 2 years

Ordinary shares on issue
Weekly counts from ASX records. Dots mark cash capital raises. Latest count 371.7M per ASX (delayed) (snapshot 11 Sept 2026).
200M250M300M350MDec 24Oct 25Sept 26Cash raise · 7 Sept 2026Cash raise · 26 Mar 2026Cash raise · 26 Mar 2026Cash raise · 22 May 2025Cash raise · 20 May 2025Cash raise · 19 May 2025371.7M

Cash runway

-0.2 qtrs
Less than two quarters of funding at the recent spend rate — near-term funding pressure.
$-140k cash after burn from the quarter ended 30 June 2026 · Runway is computed from Appendix 4C/5B filings and announced raise proceeds. Filed with the quarterly report: $325k cash at quarter end (item 4.6), 0.6 qtrs of funding on the company’s own estimate. Our figure above carries the filed quarter-end balance forward at the reported spend rate and adds announced raise proceeds.
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5 quarters on record — Cash runway history
Quarterly cash, net spend and cover trend from every Appendix 4C/5B on record up to 30 June 2026.
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Issuance timeline

Latest 5 filings (Appendix 2A quoted issues, 3G unquoted, 3H cancellations)

DateFormSecurityOn issue, per this filingSource
5 Aug 20263H · cancellationMIO : ORDINARY FULLY PAID371.7MAppendix 3H
17 June 20262A · quoted issueMIO : ORDINARY FULLY PAID371.7MAppendix 2A
7 Apr 20262A · quoted issueMIO : ORDINARY FULLY PAID368.4MAppendix 2A
7 Apr 20263G · unquotedMIO : ORDINARY FULLY PAID318.4MAppendix 3G
26 Mar 20263H · cancellationMIO : ORDINARY FULLY PAID318.4MAppendix 3H
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29 filings on record — Full issuance history
Every quoted and unquoted issue and cancellation on record, plus unquoted securities (Appendix 4.2).
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Capital raises

6 cash raises in the last 24 months · 3 in the last 12 months

every 3.9 monthsaverage gap between raises
0.2 monthssince the most recent
19 May 2025 – 7 Sept 2026first to most recent in this window
$3.5M
Placement
7 Sept 2026 ACTIVE
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7 raises on record — Full raise history
Issue price, shares issued, brokers and stated purpose for every raise on record.
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Forward supply

Every dated event on record that could add securities to the register — option expiries to their stated dates and proposed issues over the next 18 months, on one timeline.

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5 dated events on record — Forward supply calendar
Option expiries and proposed issues on one forward timeline, with the securities each could add.
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Placement capacity

How much stock a company can place without asking holders. Listing Rule 7.1 allows 15% of ordinary securities in any 12 months, and every Appendix 3B states how much of it an issue uses.

No estimate — the only Appendix 3B in the window claiming the 15% capacity states more than the whole allowance, so it cannot be counted. The company has also placed under the additional 10% (Listing Rule 7.1A), which is not counted in this figure.
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Placement capacity — LR 7.1 / 7.1A
The filings behind the figure: every Appendix 3B in the window with what it says was issued under 7.1 and 7.1A, each row linked to its filing, and how many shares are left.
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Pending proposed issues

1 proposed issue pending — Appendix 3B lodged, securities not yet issued. New shares from these issues are not in the counts above until quoted.
Paid plan
1 pending issue on record — Pending issue detail
Size, price, fees, broker and placement-capacity usage for each pending issue.
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Options & convertible securities

20.7%
Options & rights overhang · of current shares
0.0%
In-the-money supply · at current price
76.9M
Potential new shares
Jan 2027
Nearest expiry
What this supply is, and what converts it
  • Price-triggered74.7M · 20.1% of shares
    Options and warrants — they convert when the share price clears their exercise price.
  • Condition-triggered2.2M · 0.6% of shares
    Performance and incentive rights — they convert when a hurdle is met, not at a price, and can lapse to nothing.

Exercise price on record: 74.7M priced, 2.2M where the filing never states one. A security with no exercise price is never counted in the money — nothing is paid to convert it, so there is no price for it to be above.

Each figure is the filing’s own count of securities, not a share count — a 2A never states what one security converts into.

What a price move would switch on
38.4M76.9M$0.028 now0.25× today ($0.007) — 0 of the priced supply in the money, 0.0% of shares on issue0.5× today ($0.014) — 0 of the priced supply in the money, 0.0% of shares on issue0.75× today ($0.021) — 0 of the priced supply in the money, 0.0% of shares on issue1× today ($0.028) — 0 of the priced supply in the money, 0.0% of shares on issue1.25× today ($0.035) — 49.7M of the priced supply in the money, 13.4% of shares on issue1.5× today ($0.042) — 49.7M of the priced supply in the money, 13.4% of shares on issue2× today ($0.056) — 74.7M of the priced supply in the money, 20.1% of shares on issue3× today ($0.084) — 74.7M of the priced supply in the money, 20.1% of shares on issue5× today ($0.140) — 74.7M of the priced supply in the money, 20.1% of shares on issue10× today ($0.280) — 74.7M of the priced supply in the money, 20.1% of shares on issue0.25×0.5×0.75×now1.25×1.5×2×3×5×10×

At $0.028 today, 0 securities are in the money (0.0% of shares on issue). No more priced supply until 1.25× today’s price, which takes it to 49.7M (13.4% of shares).

  • Priced supply in the money at the price on the axis — the curve, and the only thing on it. Ten prices, sampled: between two of them the true figure lies between the two.
  • 2.2M (2.9% of the supply above) states no exercise price at all. It cannot be called in or out of the money at any price, which is why it is hatched rather than plotted.
CodeSecurityTypeExercise priceExpiryOn issueSource
MIOAAS—Condition-triggered—24 Jan 20272.2MFiling Meeting
MIOAAUOptionsPrice-triggered$0.0307 Aug 202738.7MFiling
MIOAAVOptionsPrice-triggered$0.03018 Sept 202711.0MFiling
MIOAAOptionsPrice-triggered$0.0507 Oct 202725.0MFiling

“Nil” is a stated nil exercise price: nothing is paid to convert. An em dash means the filing names no exercise price at all. Security is read from the filing’s own class description; an em dash there means the description is not one this table labels. One row is one security class, at the number stated in the most recent quotation application that restated it — linked, and dated, in the last column.

A condition-triggered class has no exercise price and usually no expiry: what it vests on is set by a shareholder resolution, not by the register. Where the company lodged a notice of meeting before the class first appears here, it is linked as “Meeting” — that is where terms of this kind are put to shareholders. It is not confirmation that the document sets this class’s conditions, and no link appears where there is no such filing.

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4 option lines on record — In-the-money value & price ladder
What each line is worth in the money today, the price ladder to the next tranche that converts, and the filing description behind every code.
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Director dealings

DateDirectorTypeSharesOptionsOtherValueSource
13 Aug 2026Nigel Hanson JonesBuy on-market1.0M——$23k3Y notice
13 July 2026Alan Spence PhillipsBuy on-market128k854k600k$3k3Y notice
13 July 2026Cameron Hugh McCallBuy on-market72k913k700k$2k3Y notice
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15 notices on record — Full dealing history
Every change-of-director's-interest notice on record, with direction and consideration.
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Ownership

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Top-20 holders & substantial holder notices
Top-20 register snapshot and substantial-holder movements, each linked to its source notice.
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Latest announcements

7 Sept 2026Proposed issue of securities - MIO
2 Sept 2026$PAdditional PoW Approval for Lake Giles Bulk Sampling
31 Aug 2026Amended Constitution
31 Aug 2026Results of 2026 Annual General Meeting
20 Aug 2026Change of Director's Interest Notice
14 Aug 2026Late Lodgement - Appendix 3X and Appendix 3Z
5 Aug 2026Notification of cessation of securities - MIO
2 Aug 2026Notice of Annual General Meeting/Proxy Form
30 July 2026$PAppendix 5B Quarter Ended 30 June 2026
30 July 2026$PQuarterly Activities Report period ended 30 June 2026
14 July 2026Board Changes
14 July 2026Change of Director's Interest Notice (A Phillips)
14 July 2026Change of Director's Interest Notice (C McCall)
12 July 2026Change of Director's Interest Notice (A Phillips)
12 July 2026Change of Director's Interest Notice (C McCall)
29 June 2026Appendix 4G and Corporate Governance Statement
29 June 2026Annual Report to 31 March 2026
17 June 2026Cleansing Notice
17 June 2026Application for quotation of securities - MIO
3 June 2026$PMacarthur Consents to Gold Valley Destec JV Arrangement

Headlines link to the source PDFs on the ASX announcements platform. Data as of 12 Sept 2026.