X0306 4 2018-06-05 0 0001574235 Pulmatrix, Inc. PULM 0001645327 Clarke Robert W. C/O PULMATRIX, INC., 99 HAYDEN AVE LEXINGTON MA 02421 1 1 0 0 Chief Executive Officer Stock Option (Right to Buy) 0.468 2018-06-05 4 A 0 2000000 0.00 A 2028-06-05 Common Stock 2000000 2000000 D One-fourth (1/4) of the option vested on June 5, 2018 and the remainder vests in thirty-six (36) equal monthly installments with 2.083% vesting on the last day of each of the next thirty-six (36) months that follow June 5, 2018, provided that the reporting person is providing services to the Issuer on the applicable vesting date and subject to the terms and conditions of the Pulmatrix, Inc. 2013 Employee, Director and Consultant Equity Incentive Plan. /s/ Robert W. Clarke 2018-06-06