X0306 4 2019-12-19 0001158895 LEMAITRE VASCULAR INC LMAT 0001365739 Kamke Trent G C/O LEMAITRE VASCULAR , INC. 63 SECOND AVENUE BURLINGTON MA 01803 1 Senior V. P., Operations Common Stock 2019-12-19 4 M 0 4 0 A 30897 D Common Stock 2019-12-19 4 F 0 73 35.83 D 30824 D Common Stock 2019-12-20 4 A 0 810 0 A 31634 D Dividend Equivalent Rights 2019-12-19 4 M 0 4 0 D Common Stock 4 9 D Stock Option (Right to Buy) 35.48 2019-12-20 4 A 0 6765 0 A 2019-12-20 2026-12-20 Common Stock 6765 6765 D Represents shares acquired upon release of dividend equivalent rights, as reported in Table II, on a one-for-one basis. These shares represent shares withheld by the Issuer to satisfy tax withholding obligations incurred upon the vesting of restricted stock units awarded to the reporting person on December 19, 2018. This transaction is considered an exempt sale pursuant to Rule 16b-3(e) promulgated under the Securities Exchange Act of 1934. Represents a restricted stock unit award that vests on a time-based schedule as follows: 20% of the award vests on the anniversary of the grant date listed in the table, with the balance vesting in equal annual installments over the remaining four years. This award includes a provision for the withholding of shares by the Issuer to pay the withholding taxes due on each vesting date. These dividend equivalent rights were released in connection with the vesting of a restricted stock unit award granted on December 19, 2018. Each dividend equivalent right is the economic equivalent of one share of the Issuer's common stock. This option is exercisable and vests over a five-year period at a rate of 20% on the first anniversary of the date listed in the table, with the balance vesting in equal annual installments over the remaining four years. /s/ Laurie A. Churchill, Attorney-in-fact 2019-12-23