<div id="readability-page-1"><div><p><span>Regazzi John J Director of Research Solutions Inc [RSSS] filed a Form 4 on November 21, 2025 with the Securities and Exchange Commission disclosing the following changes in ownership:</span></p><div><table><tbody><tr><td><span>Date</span></td><td><span>11/17/25</span></td></tr><tr><td><span>Transaction</span></td><td><span>Exercise(1)</span></td></tr><tr><td><span>Shares</span></td><td><span>150,000</span></td></tr><tr><td><span>Price</span></td><td><span>$0.70</span></td></tr><tr><td><span>Value</span></td><td><span>$105,000</span></td></tr></tbody></table></div><p><span>Ending Holdings: 393,500 (318,500 - Direct, 75,000 - Indirect)</span></p><ul><li><span>(1)</span></li><li><span>Exercised 10.0 years after vest date and 16 days before expiration date.</span></li></ul><p><span>For a free trial, or to learn more about our insider trading analysis and data services, please visit http://www.washingtonservice.com or contact us at (301) 913-5100 or send an email to info@washingtonservice.com.</span></p><p><span>Founded in 1970, The Washington Service provides securities professionals with financial, economic and public policy research and data.</span></p><span> </span></div></div>

RSSS

<p>Regazzi John J, Director of Research Solutions Inc, exercised 150,000 shares at $0.70 each, totaling $105,000, on November 17, 2025. His ending holdings are 393,500 shares. The transaction was filed with the SEC on November 21, 2025.</p>

Dir Regazzi Acquires 150,000 Of Research Solutions Inc [RSSS]