X0202 4 2006-05-11 0 0000884847 MATRITECH INC/DE/ MZT 0001357399 Kolasinski David C/O MATRITECH, INC. 330 NEVADA STREET NEWTON MA 02460 0 1 0 0 Vice President, Sales Common Stock 2006-05-11 4 A 0 33333 0 A 33333 D Award of restricted stock in lieu of stock option grant under Issuer's 2002 Stock Option and Incentive Plan. Award will vest at the rate of 50% on the second anniversary of grant, an additional 25% on the third anniversary of grant and the final 25% on the fourth anniversary of grant if the Reporting Person has continued in a business relationship with the Issuer through the vesting date. Patricia Randall, under power of attorney 2006-05-15