X0508 4 2024-12-19 0000855683 MILESTONE SCIENTIFIC INC. MLSS 0001768936 McGeehan Michael C/O MILESTONE SCIENTIFIC INC. 425 EAGLE ROCK AVENUE, SUITE 403 ROSELAND NJ 07068 1 0 Common Stock, Par Value $0.001 2024-12-19 4 S 0 20000 0.7766 D 575273 D The reported price in Column 4 is a weighted average sales price. The shares sold on December 19, 2024, were sold in multiple transactions at prices ranging from $$0.7700 to $0.7950 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. /s/ Michael McGeehan 2024-12-20