X0306 4 2015-09-10 0000806517 PSYCHEMEDICS CORP PMD 0001041889 KUBACKI RAYMOND C JR C/O PSYCHEMEDICS CORPORATION 125 NAGOG PARK ACTON MA 01720 1 1 0 0 Chairman, CEO & President Common Stock, $.005 Par Value 2015-09-10 4 P 0 1000 10.25 A 184647 D Common Stock, $.005 Par Value 2015-09-14 4 P 0 1000 9.995 A 185647 D The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $9.98 to $10.00, inclusive. The reporting person undertakes to provide to Psychemedics Corporation, any security holder of Psychemedics Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. Patrick J. Kinney, Jr. as attorney-in-fact for Raymond C. Kubacki, Jr. 2015-09-14