X0306 4 2020-09-25 0001158895 LEMAITRE VASCULAR INC LMAT 0001365737 LeMaitre George W C/O LEMAITRE VASCULAR, INC. 63 SECOND AVENUE BURLINGTON MA 01803 1 1 1 Chairman and CEO Common Stock 2962654 D Common Stock 2020-09-25 4 S 0 724 33.9766 D 20000 I See footnote This transaction was effected pursuant to a Rule 10b5-1 trading plan established by LeMaitre Family LLC. The price reported in Column 4 is a weighted average price. The transaction was executed in multiple trades ranging from $33.96 to $33.99. The Reporting Person undertakes to provide to the Issuer, any securityholder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares and price at which the transaction was effected. This transaction was effected by LeMaitre Family LLC. A trust for the benefit of the Reporting Person holds a 20% membership interest in LeMaitre Family LLC, and the transaction reported represents 20% of the shares sold by LeMaitre Family LLC on this date. LeMaitre Family LLC is 100% owned by Christopher Lynch, as trustee for various trusts formed for the benefit of the children of George D. LeMaitre, the Issuer's founder, and Cornelia W. LeMaitre. The Reporting Person disclaims ownership of securities held by LeMaitre Family LLC except to the extent of his pecuniary interest therein, if any, and the reporting herein of such securities shall not be construed as an admission of beneficial ownership thereof for the purposes of Section 16 or for any other purpose. /s/ Laurie A. Churchill, Attorney-in-fact 2020-09-29