0001213037 2 2026-07-21 2026-07-21 0001213037 2026-07-21 2026-07-21 0001213037 1 2026-07-21 2026-07-21 pure shares iso4217:USD N/A 0 0001213037 EX-FILING FEES S-8 S-8 Cardiff Oncology, Inc. false false Equity Common Stock, $0.0001 par value true 886650 1.64 1454106 0.0001381 200.81 Equity Common Stock, $0.0001 par value true 3000000 0.9 2700000 0.0001381 372.87 4154106 573.68 573.68 <div><div class="item-list-element-wrapper" style="margin-left:1.333%;display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:0;margin-right:10%;min-width:3.333%;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:9pt;font-family:Times New Roman;font-kerning:none;min-width:3.3780291282799726%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(1)</span><div style="display:inline;"><span style="color:#000000;white-space:pre-wrap;font-size:9pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">Pursuant to Rule 416 under the Securities Act of 1933 (the “Securities Act”), the securities being registered hereunder also include such indeterminate number of additional shares of common stock as may from time to time be issued after the date hereof as a result of stock splits, stock dividends, recapitalizations or similar transactions.</span></div></div></div><div class="item-list-element-wrapper" style="margin-left:1.333%;display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:0;margin-right:10%;min-width:3.333%;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:9pt;font-family:Times New Roman;font-kerning:none;min-width:3.3780291282799726%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(2)</span><div style="display:inline;"><span style="color:#000000;white-space:pre-wrap;font-size:9pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">Estimated solely for the purpose of calculating the registration fee in accordance with Rule 457(h) of the Securities Act, based on the weighted average exercise price of $1.64 per share.</span></div></div> <div class="item-list-element-wrapper" style="margin-left:1.333%;display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:0;margin-right:10%;min-width:3.333%;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:9pt;font-family:Times New Roman;font-kerning:none;min-width:3.3780291282799726%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(1)</span><div style="display:inline;"><span style="color:#000000;white-space:pre-wrap;font-size:9pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">Pursuant to Rule 416 under the Securities Act of 1933 (the “Securities Act”), the securities being registered hereunder also include such indeterminate number of additional shares of common stock as may from time to time be issued after the date hereof as a result of stock splits, stock dividends, recapitalizations or similar transactions.</span></div></div><div class="item-list-element-wrapper" style="margin-left:1.333%;display:flex;margin-top:0;justify-content:flex-start;align-items:baseline;margin-bottom:0;margin-right:10%;min-width:3.333%;text-align:left;"><span style="color:#000000;white-space:pre-wrap;font-size:9pt;font-family:Times New Roman;font-kerning:none;min-width:3.3780291282799726%;word-break:keep-all;display:inline-flex;justify-content:flex-start;">(3)</span><div style="display:inline;"><span style="color:#000000;white-space:pre-wrap;font-size:9pt;font-family:Times New Roman;font-kerning:none;min-width:fit-content;">Estimated solely for the purpose of calculating the registration fee in accordance with Rule 457(c) of the Securities Act, based on the high and low sales prices of the Registrant’s common stock as reported on the Nasdaq Capital Market on July 16, 2026, which date is within five business days prior to the filing of this Registration Statement.</span></div></div>