<?xml version="1.0" encoding="UTF-8" ?><!-- Generated on Tue, 20 Oct 2026 19:09:16 -0400--><rss version="2.0">
    <channel>
        <title>Perma-Fix Environmental Services, Inc. (PESI) SEC Filings</title>
        <link>https://ir.perma-fix.com/section-16-filings/rss</link>
        <description>Perma-Fix Environmental Services, Inc. (PESI) - Section 16 Filings</description>
        <language>en-us</language>
                                            <image>
                <url>https://d1io3yog0oux5.cloudfront.net/_4cc2b750befbd0787e42b434559d78ac/pesi/logo.png</url>
                <title>Perma-Fix Environmental Services, Inc. Logo</title>
                <link>https://ir.perma-fix.com</link>
            </image>
                <generator>Equisolve Investor Relations Suite</generator>
        
                            <item>
                <title><![CDATA[4 - Statement of changes in beneficial ownership of securities]]></title>
                <description><![CDATA[4]]></description>
                <link>https://ir.perma-fix.com/section-16-filings?page=1#document-50742-0001493152-26-045432</link>
                <pubDate>Fri, 02 Oct 26 08:00:50 -0400</pubDate>
                <guid isPermalink="true">https://ir.perma-fix.com/section-16-filings?page=1#document-50742-0001493152-26-045432</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[4 - Statement of changes in beneficial ownership of securities]]></title>
                <description><![CDATA[4]]></description>
                <link>https://ir.perma-fix.com/section-16-filings?page=1#document-50741-0001493152-26-045433</link>
                <pubDate>Fri, 02 Oct 26 08:00:47 -0400</pubDate>
                <guid isPermalink="true">https://ir.perma-fix.com/section-16-filings?page=1#document-50741-0001493152-26-045433</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[4 - Statement of changes in beneficial ownership of securities]]></title>
                <description><![CDATA[4]]></description>
                <link>https://ir.perma-fix.com/section-16-filings?page=1#document-50740-0001493152-26-045435</link>
                <pubDate>Fri, 02 Oct 26 08:00:43 -0400</pubDate>
                <guid isPermalink="true">https://ir.perma-fix.com/section-16-filings?page=1#document-50740-0001493152-26-045435</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[4 - Statement of changes in beneficial ownership of securities]]></title>
                <description><![CDATA[4]]></description>
                <link>https://ir.perma-fix.com/section-16-filings?page=1#document-50739-0001493152-26-045434</link>
                <pubDate>Fri, 02 Oct 26 08:00:40 -0400</pubDate>
                <guid isPermalink="true">https://ir.perma-fix.com/section-16-filings?page=1#document-50739-0001493152-26-045434</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[4 - Statement of changes in beneficial ownership of securities]]></title>
                <description><![CDATA[4]]></description>
                <link>https://ir.perma-fix.com/section-16-filings?page=1#document-50738-0001493152-26-045436</link>
                <pubDate>Fri, 02 Oct 26 08:00:36 -0400</pubDate>
                <guid isPermalink="true">https://ir.perma-fix.com/section-16-filings?page=1#document-50738-0001493152-26-045436</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[4 - Statement of changes in beneficial ownership of securities]]></title>
                <description><![CDATA[4]]></description>
                <link>https://ir.perma-fix.com/section-16-filings?page=1#document-50737-0001493152-26-045437</link>
                <pubDate>Fri, 02 Oct 26 08:00:31 -0400</pubDate>
                <guid isPermalink="true">https://ir.perma-fix.com/section-16-filings?page=1#document-50737-0001493152-26-045437</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[4 - Statement of changes in beneficial ownership of securities]]></title>
                <description><![CDATA[4]]></description>
                <link>https://ir.perma-fix.com/section-16-filings?page=1#document-50736-0001493152-26-045431</link>
                <pubDate>Fri, 02 Oct 26 08:00:26 -0400</pubDate>
                <guid isPermalink="true">https://ir.perma-fix.com/section-16-filings?page=1#document-50736-0001493152-26-045431</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[4 - Statement of changes in beneficial ownership of securities]]></title>
                <description><![CDATA[4]]></description>
                <link>https://ir.perma-fix.com/section-16-filings?page=1#document-50716-0001493152-26-034495</link>
                <pubDate>Fri, 24 Jul 26 11:06:00 -0400</pubDate>
                <guid isPermalink="true">https://ir.perma-fix.com/section-16-filings?page=1#document-50716-0001493152-26-034495</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[4 - Statement of changes in beneficial ownership of securities]]></title>
                <description><![CDATA[4]]></description>
                <link>https://ir.perma-fix.com/section-16-filings?page=1#document-50715-0001493152-26-034309</link>
                <pubDate>Thu, 23 Jul 26 07:01:05 -0400</pubDate>
                <guid isPermalink="true">https://ir.perma-fix.com/section-16-filings?page=1#document-50715-0001493152-26-034309</guid>
                                                                            </item>
                    <item>
                <title><![CDATA[4 - Statement of changes in beneficial ownership of securities]]></title>
                <description><![CDATA[4]]></description>
                <link>https://ir.perma-fix.com/section-16-filings?page=1#document-50714-0001493152-26-034312</link>
                <pubDate>Thu, 23 Jul 26 07:01:02 -0400</pubDate>
                <guid isPermalink="true">https://ir.perma-fix.com/section-16-filings?page=1#document-50714-0001493152-26-034312</guid>
                                                                            </item>
            </channel>
</rss>