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<title>ASP Isotopes Inc. (ASPI) on GreekSoup</title>
<link>https://greeksoup.ai/stocks/us/aspi/</link>
<description>Every dated entry in the public record on ASP Isotopes Inc.: results, filings, insider trades and the rest, from the filings, the last 90 days.</description>
<language>en</language>
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<lastBuildDate>Sat, 31 Oct 2026 00:00:00 +0000</lastBuildDate>
<item><title>ASP Isotopes Inc. filed 8-K: regulation fd disclosure</title><link>https://greeksoup.ai/stocks/us/aspi/filings/</link><guid isPermaLink="false">us:ASPI:filing:2026-10-26:a3450ee660</guid><pubDate>Mon, 26 Oct 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000119312526431084/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Kiessling Heather (Chief Financial Officer) sold 21,830 shares at $2.19 on 16 October 2026, $47,808</title><link>https://greeksoup.ai/stocks/us/aspi/insiders/</link><guid isPermaLink="false">us:ASPI:insider:2026-10-21:1f824d2ce8</guid><pubDate>Wed, 21 Oct 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226006387/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Form 144, Heather Kiessling plans to sell 21,830 shares worth $47,975 around 16 October 2026</title><link>https://greeksoup.ai/stocks/us/aspi/planned-sales/</link><guid isPermaLink="false">us:ASPI:planned-sale:2026-10-16:0d74db63d3</guid><pubDate>Fri, 16 Oct 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000197449426000318/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Ainscow Robert (COO) sold 22,500 shares (under a trading plan set in advance) at $2.11 on 14 October 2026, $47,565</title><link>https://greeksoup.ai/stocks/us/aspi/insiders/</link><guid isPermaLink="false">us:ASPI:insider:2026-10-16:0239dc76ca</guid><pubDate>Fri, 16 Oct 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226006312/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc. filed 8-K: regulation fd disclosure</title><link>https://greeksoup.ai/stocks/us/aspi/filings/</link><guid isPermaLink="false">us:ASPI:filing:2026-10-15:4cb1a5699d</guid><pubDate>Thu, 15 Oct 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000119312526422325/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: short interest 29,048,703 shares at the 15 October 2026 settlement, 5.83 days to cover</title><link>https://greeksoup.ai/stocks/us/aspi/short-interest/</link><guid isPermaLink="false">us:ASPI:short-interest:2026-10-15:1cb2b00513</guid><pubDate>Thu, 15 Oct 2026 00:00:00 +0000</pubDate><category>Short interest</category><description><![CDATA[<p>Short interest. <a href="https://www.finra.org/finra-data/browse-catalog/equity-short-interest/data">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Form 144, Ainscow Robert plans to sell 22,500 shares worth $46,575 around 14 October 2026</title><link>https://greeksoup.ai/stocks/us/aspi/planned-sales/</link><guid isPermaLink="false">us:ASPI:planned-sale:2026-10-14:5bb0b01448</guid><pubDate>Wed, 14 Oct 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226006223/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc. filed 8-K: regulation fd disclosure</title><link>https://greeksoup.ai/stocks/us/aspi/filings/</link><guid isPermaLink="false">us:ASPI:filing:2026-10-02:a1038a361b</guid><pubDate>Fri, 02 Oct 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005971/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Ryan Robert John Andrew (Director) bought 15,000 shares at $2.68 on 30 September 2026, $40,200</title><link>https://greeksoup.ai/stocks/us/aspi/insiders/</link><guid isPermaLink="false">us:ASPI:insider:2026-10-01:a680a21ca0</guid><pubDate>Thu, 01 Oct 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005964/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Ryan Robert John Andrew (Director) bought 8,000 shares at $2.70 on 28 September 2026, $21,600</title><link>https://greeksoup.ai/stocks/us/aspi/insiders/</link><guid isPermaLink="false">us:ASPI:insider:2026-09-30:e8e1738d24</guid><pubDate>Wed, 30 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005918/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: short interest 26,455,716 shares at the 30 September 2026 settlement, 5.31 days to cover</title><link>https://greeksoup.ai/stocks/us/aspi/short-interest/</link><guid isPermaLink="false">us:ASPI:short-interest:2026-09-30:3ad387d6d1</guid><pubDate>Wed, 30 Sep 2026 00:00:00 +0000</pubDate><category>Short interest</category><description><![CDATA[<p>Short interest. <a href="https://www.finra.org/finra-data/browse-catalog/equity-short-interest/data">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Form 144, Todd Wider plans to sell 200,000 shares worth $590,000 around 25 September 2026</title><link>https://greeksoup.ai/stocks/us/aspi/planned-sales/</link><guid isPermaLink="false">us:ASPI:planned-sale:2026-09-25:649aea4d26</guid><pubDate>Fri, 25 Sep 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000196858226001011/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: short interest 26,069,790 shares at the 15 September 2026 settlement, 6.52 days to cover</title><link>https://greeksoup.ai/stocks/us/aspi/short-interest/</link><guid isPermaLink="false">us:ASPI:short-interest:2026-09-15:a149a6a54b</guid><pubDate>Tue, 15 Sep 2026 00:00:00 +0000</pubDate><category>Short interest</category><description><![CDATA[<p>Short interest. <a href="https://www.finra.org/finra-data/browse-catalog/equity-short-interest/data">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Ainscow Robert (COO) sold 8,438 shares (under a trading plan set in advance) at $4.29 on 8 September 2026, $36,216</title><link>https://greeksoup.ai/stocks/us/aspi/insiders/</link><guid isPermaLink="false">us:ASPI:insider:2026-09-10:b498501a52</guid><pubDate>Thu, 10 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005524/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc. filed 8-K: regulation fd disclosure</title><link>https://greeksoup.ai/stocks/us/aspi/filings/</link><guid isPermaLink="false">us:ASPI:filing:2026-09-08:8074409b6e</guid><pubDate>Tue, 08 Sep 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000119312526384527/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Mann Paul Elliot (Chairman and CEO) sold 83,759 shares (under a trading plan set in advance) at $4.10 on 4 September 2026, $343,412</title><link>https://greeksoup.ai/stocks/us/aspi/insiders/</link><guid isPermaLink="false">us:ASPI:insider:2026-09-04:c5c36f3022</guid><pubDate>Fri, 04 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005430/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Mann Paul Elliot (Chairman and CEO) sold 83,758 shares (under a trading plan set in advance) at $3.92 on 3 September 2026, $328,331</title><link>https://greeksoup.ai/stocks/us/aspi/insiders/</link><guid isPermaLink="false">us:ASPI:insider:2026-09-04:15f2577fe0</guid><pubDate>Fri, 04 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005430/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Ainscow Donald George (EVP, Gen Counsel, Secretary) sold 23,678 shares at $3.89 on 2 September 2026, $92,107</title><link>https://greeksoup.ai/stocks/us/aspi/insiders/</link><guid isPermaLink="false">us:ASPI:insider:2026-09-04:5680f63d53</guid><pubDate>Fri, 04 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005432/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Ainscow Robert (COO) sold 25,000 shares (under a trading plan set in advance) at $3.90 on 2 September 2026, $97,625</title><link>https://greeksoup.ai/stocks/us/aspi/insiders/</link><guid isPermaLink="false">us:ASPI:insider:2026-09-04:6caa0c34ee</guid><pubDate>Fri, 04 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005431/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Mann Paul Elliot (Chairman and CEO) sold 83,758 shares (under a trading plan set in advance) at $3.91 on 2 September 2026, $327,494</title><link>https://greeksoup.ai/stocks/us/aspi/insiders/</link><guid isPermaLink="false">us:ASPI:insider:2026-09-04:b072265f8c</guid><pubDate>Fri, 04 Sep 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005430/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Form 144, Ainscow Robert plans to sell 25,000 shares worth $94,500 around 2 September 2026</title><link>https://greeksoup.ai/stocks/us/aspi/planned-sales/</link><guid isPermaLink="false">us:ASPI:planned-sale:2026-09-02:b159afd021</guid><pubDate>Wed, 02 Sep 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005387/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Form 144, Donald George Ainscow plans to sell 50,000 shares worth $194,391 around 2 September 2026</title><link>https://greeksoup.ai/stocks/us/aspi/planned-sales/</link><guid isPermaLink="false">us:ASPI:planned-sale:2026-09-02:0a059c0bc3</guid><pubDate>Wed, 02 Sep 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000197449426000269/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: Form 144, Mann Paul Elliot plans to sell 83,758 shares worth $316,605 around 2 September 2026</title><link>https://greeksoup.ai/stocks/us/aspi/planned-sales/</link><guid isPermaLink="false">us:ASPI:planned-sale:2026-09-02:98a44839b3</guid><pubDate>Wed, 02 Sep 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005388/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: short interest 25,481,535 shares at the 31 August 2026 settlement, 8.02 days to cover</title><link>https://greeksoup.ai/stocks/us/aspi/short-interest/</link><guid isPermaLink="false">us:ASPI:short-interest:2026-08-31:46aeaf5039</guid><pubDate>Mon, 31 Aug 2026 00:00:00 +0000</pubDate><category>Short interest</category><description><![CDATA[<p>Short interest. <a href="https://www.finra.org/finra-data/browse-catalog/equity-short-interest/data">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc. filed 8-K: material agreement, termination of a material agreement, new financial obligation</title><link>https://greeksoup.ai/stocks/us/aspi/filings/</link><guid isPermaLink="false">us:ASPI:filing:2026-08-20:eda5f9e417</guid><pubDate>Thu, 20 Aug 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000147793226005196/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc. filed 8-K: regulation fd disclosure</title><link>https://greeksoup.ai/stocks/us/aspi/filings/</link><guid isPermaLink="false">us:ASPI:filing:2026-08-20:d47c7a4457</guid><pubDate>Thu, 20 Aug 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000119312526358072/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc. filed 8-K: regulation fd disclosure</title><link>https://greeksoup.ai/stocks/us/aspi/filings/</link><guid isPermaLink="false">us:ASPI:filing:2026-08-18:625d319557</guid><pubDate>Tue, 18 Aug 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000119312526354745/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc. Q2 FY2026 results: revenue $5 million, net income -$34 million</title><link>https://greeksoup.ai/stocks/us/aspi/results/fy2026-q2/</link><guid isPermaLink="false">us:ASPI:result:2026-08-14:4420972f5a</guid><pubDate>Fri, 14 Aug 2026 00:00:00 +0000</pubDate><category>Results</category><description><![CDATA[<p>Results. <a href="https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&amp;CIK=0001921865&amp;type=10-&amp;dateb=&amp;owner=include&amp;count=40">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/results/fy2026-q2/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc. filed 10-Q: 10-q</title><link>https://greeksoup.ai/stocks/us/aspi/filings/</link><guid isPermaLink="false">us:ASPI:filing:2026-08-14:64886872ff</guid><pubDate>Fri, 14 Aug 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000119312526352603/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc.: short interest 26,784,809 shares at the 14 August 2026 settlement, 8.71 days to cover</title><link>https://greeksoup.ai/stocks/us/aspi/short-interest/</link><guid isPermaLink="false">us:ASPI:short-interest:2026-08-14:dfe716a33a</guid><pubDate>Fri, 14 Aug 2026 00:00:00 +0000</pubDate><category>Short interest</category><description><![CDATA[<p>Short interest. <a href="https://www.finra.org/finra-data/browse-catalog/equity-short-interest/data">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc. filed 8-K: regulation fd disclosure</title><link>https://greeksoup.ai/stocks/us/aspi/filings/</link><guid isPermaLink="false">us:ASPI:filing:2026-08-06:5fcfb23020</guid><pubDate>Thu, 06 Aug 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000119312526336859/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc. filed 8-K: regulation fd disclosure</title><link>https://greeksoup.ai/stocks/us/aspi/filings/</link><guid isPermaLink="false">us:ASPI:filing:2026-08-05:e294360ef5</guid><pubDate>Wed, 05 Aug 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000119312526333911/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>ASP Isotopes Inc. filed 8-K: results of operations, regulation fd disclosure</title><link>https://greeksoup.ai/stocks/us/aspi/filings/</link><guid isPermaLink="false">us:ASPI:filing:2026-08-04:4470f247d8</guid><pubDate>Tue, 04 Aug 2026 00:00:00 +0000</pubDate><category>SEC filing</category><description><![CDATA[<p>SEC filing. <a href="https://www.sec.gov/Archives/edgar/data/1921865/000119312526331596/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/aspi/filings/">The page on GreekSoup</a>.</p>]]></description></item>
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