X0306 4 2016-10-05 0 0001374128 ENTELLUS MEDICAL INC ENTL 0001306117 Farley Brian E 3600 HOLLY LANE NORTH, SUITE 40 PLYMOUTH MN 55447 1 0 0 0 Common Stock, $0.001 par value 2016-10-05 4 S 0 30000 22.2591 D 514581 D These shares were sold under a pre-arranged sales plan pursuant to Rule 10b5-1 under the Securities Exchange Act of 1934, as amended. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $22.25 to $22.50, inclusive. The reporting person undertakes to provide to Entellus Medical, Inc., any security holder of Entellus Medical, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (2) to this Form 4. /s/ Brent A. Moen, attorney-in-fact 2016-10-06