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    <title>HowShorted: Castellum Aktiebolag short interest changes</title>
    <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
    <description>Every change in the disclosed short interest of Castellum Aktiebolag, from official Finansinspektionen data. Figures only; not investment advice.</description>
    <language>en-gb</language>
    <lastBuildDate>Mon, 12 Oct 2026 00:00:00 GMT</lastBuildDate>
    <item>
      <title>Castellum Aktiebolag: +0.51pp to 2.85%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-10-08</guid>
      <pubDate>Thu, 08 Oct 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.51pp to 2.85%, position date 8 Oct 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.02pp to 2.34%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-09-30</guid>
      <pubDate>Wed, 30 Sep 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.02pp to 2.34%, position date 30 Sep 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.10pp to 2.32%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-09-28</guid>
      <pubDate>Mon, 28 Sep 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.10pp to 2.32%, position date 28 Sep 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.03pp to 2.42%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-09-22</guid>
      <pubDate>Tue, 22 Sep 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.03pp to 2.42%, position date 22 Sep 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.14pp to 2.45%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-09-18</guid>
      <pubDate>Fri, 18 Sep 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.14pp to 2.45%, position date 18 Sep 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.10pp to 2.59%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-09-16</guid>
      <pubDate>Wed, 16 Sep 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.10pp to 2.59%, position date 16 Sep 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.01pp to 2.49%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-09-11</guid>
      <pubDate>Fri, 11 Sep 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.01pp to 2.49%, position date 11 Sep 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.01pp to 2.48%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-09-10</guid>
      <pubDate>Thu, 10 Sep 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.01pp to 2.48%, position date 10 Sep 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.10pp to 2.49%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-09-01</guid>
      <pubDate>Tue, 01 Sep 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.10pp to 2.49%, position date 1 Sep 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.09pp to 2.39%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-08-24</guid>
      <pubDate>Mon, 24 Aug 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.09pp to 2.39%, position date 24 Aug 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.51pp to 2.30%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-08-19</guid>
      <pubDate>Wed, 19 Aug 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.51pp to 2.30%, position date 19 Aug 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.02pp to 1.79%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-08-06</guid>
      <pubDate>Thu, 06 Aug 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.02pp to 1.79%, position date 6 Aug 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.01pp to 1.81%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-07-14</guid>
      <pubDate>Tue, 14 Jul 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.01pp to 1.81%, position date 14 Jul 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.01pp to 1.80%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-07-06</guid>
      <pubDate>Mon, 06 Jul 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.01pp to 1.80%, position date 6 Jul 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.50pp to 1.81%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-07-01</guid>
      <pubDate>Wed, 01 Jul 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.50pp to 1.81%, position date 1 Jul 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.59pp to 2.31%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-06-29</guid>
      <pubDate>Mon, 29 Jun 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.59pp to 2.31%, position date 29 Jun 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.05pp to 2.90%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-06-24</guid>
      <pubDate>Wed, 24 Jun 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.05pp to 2.90%, position date 24 Jun 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.11pp to 2.95%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-06-23</guid>
      <pubDate>Tue, 23 Jun 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.11pp to 2.95%, position date 23 Jun 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.07pp to 2.84%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-06-18</guid>
      <pubDate>Thu, 18 Jun 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.07pp to 2.84%, position date 18 Jun 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.11pp to 2.91%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-06-15</guid>
      <pubDate>Mon, 15 Jun 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.11pp to 2.91%, position date 15 Jun 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.05pp to 2.80%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-06-08</guid>
      <pubDate>Mon, 08 Jun 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.05pp to 2.80%, position date 8 Jun 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.09pp to 2.75%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-06-04</guid>
      <pubDate>Thu, 04 Jun 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.09pp to 2.75%, position date 4 Jun 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: +0.01pp to 2.66%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-06-03</guid>
      <pubDate>Wed, 03 Jun 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest +0.01pp to 2.66%, position date 3 Jun 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.01pp to 2.65%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-06-01</guid>
      <pubDate>Mon, 01 Jun 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.01pp to 2.65%, position date 1 Jun 2026. Official Finansinspektionen data; not investment advice.</description>
    </item>
    <item>
      <title>Castellum Aktiebolag: −0.06pp to 2.66%</title>
      <link>https://howshorted.com/se/company/castellum-aktiebolag/</link>
      <guid isPermaLink="false">howshorted-se-castellum-aktiebolag-2026-05-29</guid>
      <pubDate>Fri, 29 May 2026 00:00:00 GMT</pubDate>
      <description>Castellum Aktiebolag (Sweden): disclosed short interest −0.06pp to 2.66%, position date 29 May 2026. Official Finansinspektionen data; not investment advice.</description>
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