X0306 4 2017-05-08 0 0001374128 ENTELLUS MEDICAL INC ENTL 0001418439 Baltzell Joshua J C/O SPLIT ROCK PARTNERS 10400 VIKING DRIVE, SUITE 250 EDEN PRAIRIE MN 55344 1 0 0 0 Common Stock, $0.001 par value 2017-05-08 4 P 0 1600 12.34 A 2850 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $12.3414 to $12.345, 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 purchased at each separate price within the ranges set forth in this footnote (1) to this Form 4. /s/ Brent A. Moen, attorney-in-fact 2017-05-08