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<title>Amprius Technologies, Inc. (AMPX) on GreekSoup</title>
<link>https://greeksoup.ai/stocks/us/ampx/</link>
<description>Every dated entry in the public record on Amprius Technologies, Inc.: results, filings, insider trades and the rest, from the filings, the last 90 days.</description>
<language>en</language>
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<lastBuildDate>Fri, 30 Oct 2026 00:00:00 +0000</lastBuildDate>
<item><title>Amprius Technologies, Inc.: short interest 22,724,816 shares at the 15 October 2026 settlement, 3.81 days to cover</title><link>https://greeksoup.ai/stocks/us/ampx/short-interest/</link><guid isPermaLink="false">us:AMPX:short-interest:2026-10-15:8fbd851999</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/ampx/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc. filed S-3ASR: s-3asr</title><link>https://greeksoup.ai/stocks/us/ampx/filings/</link><guid isPermaLink="false">us:AMPX:filing:2026-10-09:bf982edfdd</guid><pubDate>Fri, 09 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/1899287/000110465926115105/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: short interest 22,815,859 shares at the 30 September 2026 settlement, 3.80 days to cover</title><link>https://greeksoup.ai/stocks/us/ampx/short-interest/</link><guid isPermaLink="false">us:AMPX:short-interest:2026-09-30:9b3040e0fa</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/ampx/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc. filed 8-K: material agreement</title><link>https://greeksoup.ai/stocks/us/ampx/filings/</link><guid isPermaLink="false">us:AMPX:filing:2026-09-28:3938d8f2f0</guid><pubDate>Mon, 28 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/1899287/000189928726000065/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: short interest 22,685,478 shares at the 15 September 2026 settlement, 5.08 days to cover</title><link>https://greeksoup.ai/stocks/us/ampx/short-interest/</link><guid isPermaLink="false">us:AMPX:short-interest:2026-09-15:7321dd4a70</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/ampx/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: short interest 23,159,125 shares at the 31 August 2026 settlement, 5.28 days to cover</title><link>https://greeksoup.ai/stocks/us/ampx/short-interest/</link><guid isPermaLink="false">us:AMPX:short-interest:2026-08-31:26a99c7c6a</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/ampx/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: Form 144, THOMAS M STEPIEN plans to sell 23,529 shares worth $243,313 around 21 August 2026</title><link>https://greeksoup.ai/stocks/us/ampx/planned-sales/</link><guid isPermaLink="false">us:AMPX:planned-sale:2026-08-25:f672b69ab3</guid><pubDate>Tue, 25 Aug 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/1899287/000206723326000018/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: Form 144, Constantin Ionel Stefan plans to sell 29,681 shares worth $306,930 around 21 August 2026</title><link>https://greeksoup.ai/stocks/us/ampx/planned-sales/</link><guid isPermaLink="false">us:AMPX:planned-sale:2026-08-25:76cc1809aa</guid><pubDate>Tue, 25 Aug 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/1899287/000194092826000023/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: Form 144, KANG SUN plans to sell 62,101 shares worth $642,184 around 21 August 2026</title><link>https://greeksoup.ai/stocks/us/ampx/planned-sales/</link><guid isPermaLink="false">us:AMPX:planned-sale:2026-08-25:090bd5aedf</guid><pubDate>Tue, 25 Aug 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/1899287/000147622026000033/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: Stepien Thomas M (Chief Executive Officer) sold 8,000 shares at $10.03 on 24 August 2026, $80,240</title><link>https://greeksoup.ai/stocks/us/ampx/insiders/</link><guid isPermaLink="false">us:AMPX:insider:2026-08-25:6e446115c8</guid><pubDate>Tue, 25 Aug 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1899287/000206723326000019/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: Sun Kang (Director) sold 62,101 shares at $10.34 on 21 August 2026, $642,186</title><link>https://greeksoup.ai/stocks/us/ampx/insiders/</link><guid isPermaLink="false">us:AMPX:insider:2026-08-25:333e5bae7f</guid><pubDate>Tue, 25 Aug 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1899287/000147622026000034/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: Stefan Constantin Ionel (Chief Technology Officer) sold 29,681 shares at $10.34 on 21 August 2026, $306,931</title><link>https://greeksoup.ai/stocks/us/ampx/insiders/</link><guid isPermaLink="false">us:AMPX:insider:2026-08-25:b9ba54f525</guid><pubDate>Tue, 25 Aug 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1899287/000194092826000024/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: Stepien Thomas M (Chief Executive Officer) sold 23,529 shares at $10.34 on 21 August 2026, $243,313</title><link>https://greeksoup.ai/stocks/us/ampx/insiders/</link><guid isPermaLink="false">us:AMPX:insider:2026-08-25:725403a3c2</guid><pubDate>Tue, 25 Aug 2026 00:00:00 +0000</pubDate><category>Insider trade</category><description><![CDATA[<p>Insider trade. <a href="https://www.sec.gov/Archives/edgar/data/1899287/000206723326000019/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/insiders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: Form 144, THOMAS M STEPIEN plans to sell 8,000 shares worth $80,240 around 24 August 2026</title><link>https://greeksoup.ai/stocks/us/ampx/planned-sales/</link><guid isPermaLink="false">us:AMPX:planned-sale:2026-08-24:aa1df92958</guid><pubDate>Mon, 24 Aug 2026 00:00:00 +0000</pubDate><category>Form 144</category><description><![CDATA[<p>Form 144. <a href="https://www.sec.gov/Archives/edgar/data/1899287/000195004726008579/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/planned-sales/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: short interest 22,146,891 shares at the 14 August 2026 settlement, 3.09 days to cover</title><link>https://greeksoup.ai/stocks/us/ampx/short-interest/</link><guid isPermaLink="false">us:AMPX:short-interest:2026-08-14:096709f150</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/ampx/short-interest/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc. filed 8-K: material agreement, new financial obligation</title><link>https://greeksoup.ai/stocks/us/ampx/filings/</link><guid isPermaLink="false">us:AMPX:filing:2026-08-13:cfa101eb92</guid><pubDate>Thu, 13 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/1899287/000189928726000062/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc.: Schedule 13G/A filed by JANE STREET GROUP, LLC, 3.3% of the class</title><link>https://greeksoup.ai/stocks/us/ampx/holders/</link><guid isPermaLink="false">us:AMPX:schedule-13:2026-08-10:cbe1af769b</guid><pubDate>Mon, 10 Aug 2026 00:00:00 +0000</pubDate><category>Schedule 13D/13G</category><description><![CDATA[<p>Schedule 13D/13G. <a href="https://www.sec.gov/Archives/edgar/data/1899287/000159588826000085/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/holders/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc. Q2 FY2026 results: revenue $34 million, net income -$3 million</title><link>https://greeksoup.ai/stocks/us/ampx/results/fy2026-q2/</link><guid isPermaLink="false">us:AMPX:result:2026-08-06:6885200f8a</guid><pubDate>Thu, 06 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=0001899287&amp;type=10-&amp;dateb=&amp;owner=include&amp;count=40">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/results/fy2026-q2/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc. filed 10-Q: 10-q</title><link>https://greeksoup.ai/stocks/us/ampx/filings/</link><guid isPermaLink="false">us:AMPX:filing:2026-08-06:7c92803c66</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/1899287/000189928726000059/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/filings/">The page on GreekSoup</a>.</p>]]></description></item>
<item><title>Amprius Technologies, Inc. filed 8-K: results of operations</title><link>https://greeksoup.ai/stocks/us/ampx/filings/</link><guid isPermaLink="false">us:AMPX:filing:2026-08-04:8fdea255d7</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/1899287/000189928726000056/">The filing</a>. <a href="https://greeksoup.ai/stocks/us/ampx/filings/">The page on GreekSoup</a>.</p>]]></description></item>
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