0001826892 2026-10-19 2026-10-19 0001826892 1 2026-10-19 2026-10-19 iso4217:USD shares iso4217:USD shares pure 0001826892 EX-FILING FEES Equity S-1 S-1 N/A N/A BioAtla, Inc. false Common Stock, par value $0.0001 true 8182110 1.30 10636743.00 0.00008700 925.40 10636743.00 925.40 0.00 0.00 925.40 <p id="xdx_800_effd--OfferingNote_hffd--OfferingAxis__1_dU_z6OgcxrhoFd1" style="font: 10pt Arial, Helvetica, sans-serif; margin: 0pt 0"> </p> <p style="font: 10pt Arial, Helvetica, sans-serif; margin: 0pt 0 0pt 0.25in">(1) Pursuant to Rule 416(a) of the Securities Act, there are also being registered an indeterminable number of additional shares of common stock, par value $0.0001 per share (“Common Stock”) of BioAtla, Inc. (the “Company”) as may be issued to prevent dilution resulting from stock splits, stock dividends or similar transactions.</p> <p style="font: 10pt Arial, Helvetica, sans-serif; margin: 0pt 0 0pt 0.25in"> </p> <p style="font: 10pt Arial, Helvetica, sans-serif; margin: 0pt 0 0pt 0.25in">(2) Includes (i) up to 8,000,000 shares of Common Stock that may be issued to YA II PN, LTD (“Yorkville”) pursuant to the Standby Equity Purchase Agreement, dated as of October 15, 2026, by and between the Company and Yorkville (the “SEPA”), and (ii) 182,110 shares of Common Stock issuable to Yorkville upon exercise of warrants as consideration for Yorkville’s commitment to purchase shares of Common Stock pursuant to the SEPA.</p> <p style="font: 10pt Arial, Helvetica, sans-serif; margin: 0pt 0 0pt 0.25in"> </p> <p style="font: 10pt Arial, Helvetica, sans-serif; margin: 0pt 0 0pt 0.25in">(3) Estimated solely for the purpose of calculating the amount of the registration fee pursuant to Rule 457(c) under the Securities Act, based on the average of the high and low prices of the Company’s Common Stock as reported on the OTCQB Venture Market on October 15, 2026, which date is within five business days of the filing of this Registration Statement.</p>