ADMA Biologics COO Kaitlin Kestenberg-Messina Tax Withholding on RSU Vesting

This Form 4 filing reports that Kaitlin M. Kestenberg-Messina, COO and SVP of Compliance at ADMA Biologics, Inc., had 20,362 shares of common stock withheld on April 1, 2026, to satisfy mandatory tax withholding requirements upon the vesting of restricted stock units (RSUs). The shares were withheld at a price of $9.11 per share, and this was not an open market sale. Following this transaction, the reporting person owns 446,238 shares, which includes 161,359 directly owned shares and various unvested RSUs from multiple grant dates between 2023-2026. The RSUs vest quarterly over four-year periods, subject to continued service. The filing was signed on April 3, 2026, by Michael A. Goldstein as attorney-in-fact for Kestenberg-Messina.