X0202 4/A 2005-10-11 2006-05-11 0 0001023966 ISONICS CORP ISON 0001197766 GARDNER LINDSAY A C/O ISONICS CORPORATION 5906 MCINTYRE STREET GOLDEN CO 80403 1 1 0 0 VP Corp Develop/Life Sciences Common Stock 2005-12-01 4 A 0 787 1.904 A 249148 D Common Stock 2006-05-02 4 A 0 1141 1.10 A 250289 D Stock Option 2.1875 2005-10-11 4 E 0 10000 0 D 2000-11-01 2005-10-11 Common Stock 10000 0 D Stock Option 1.06 2001-11-13 2006-11-13 Common Stock 10000 10000 D Stock Option 1.13 2002-03-28 2007-03-28 Common Stock 3014 3014 D Stock Option 1.00 2002-11-19 2007-11-19 Common Stock 10000 10000 D Stock Option 1.42 2004-04-27 2009-04-27 Common Stock 10000 10000 D Stock Option 1.52 2004-10-06 2014-10-06 Common Stock 100000 100000 D Stock Option 2.04 2005-05-05 2010-04-18 Common Stock 40000 40000 D Stock Option 1.15 2006-05-09 4 A 0 30000 0 A 2006-05-09 2016-05-04 Common Stock 30000 30000 D Options acquired as a result of being re-elected and accepting position as a director. This transaction was exempt from 16(a) reporting requirements pursuant to Rule 16b-3(d). Options granted by resolution of the Compensation Committee of the Board of Directors as consideration for deferral of directors' fees and expenses associated with 2000 annual shareholders' meeting. The grant of options was subject to acceptance by the reporting person by no later than April 30, 2002, which acceptance was received. Option granted pursuant to 1996 Executies Equity Incentive Plan and is subject to the following vesting schedule: 25,000 shares vest on October 6, 2004; 25,000 shares vest on October 6, 2005; 25,000 shares vest on October 6, 2006; and 25, 000 shares vest on October 6, 2007 Options granted by resolution of the Compensation Committee of the Board of Directors pursuant to the 2005 Stock Option Plan. The grant of the options is subject to acceptance by the reporting person, which acceptance was received on May 5, 2005. Options granted by resolution of the Compensation Committee of the Board of Directors pursuant to the 2005 Stock Option Plan. The grant of the options is subject to acceptance by the reporting person, which acceptance was received on May 9, 2006. Options vest at a rate of 7,500 shares immediately on May 9, 2006; 7,500 vest on May 5, 2007; 7,500 vest on May 5, 2008 and 7,500 shares vest on May 5, 2009. Options expired on October 11, 2005. These shares were acquired pursuant to an Employee Stock Purchase Plan. The transaction is therefore exempt from Section 16(a) reporting requirements by reason of Rule 16a-3(f)(1)(i)(B) and is exempt from Section 16(b) by reason of Rules 16b-3(c) and 16b-3(d). /s/ Lindsay A. Gardner 2006-06-01