X0306 4 2019-03-12 0 0001506492 CHF Solutions, Inc. CHFS 0001213867 ERB JOHN L 12988 VALLEY VIEW ROAD EDEN PRAIRIE MN 55344 1 1 0 0 CEO and President Common Stock 2019-03-12 4 P 0 9523 5.25 A 11615 D Series 1 Warrant to Purchase Common Stock (right to buy) 5.25 2019-03-12 4 P 0 9523 A 2019-03-12 2024-03-12 Common Stock 9523 9523 D Series 2 Warrant to Purchase Common Stock (right to buy) 5.25 2019-03-12 4 P 0 9523 A 2019-03-12 Common Stock 9523 9523 D The reporting person purchased Class A Units, which consisted of one share of common stock, a Series 1 warrant to purchase one share of common stock, and a Series 2 warrant to purchase one share of common stock, in an underwritten public offering by the issuer at a price of $5.25 per unit. The offering closed on March 12, 2019. On January 2, 2019, the issuer effected a 1-for-14 reverse stock split of the issued and outstanding shares of its common stock. Upon effectiveness of the reverse stock split, every 14 shares of common stock was automatically converted into one share of common stock. The Series 2 warrant expires on the earlier of the eighteen-month anniversary of the date of issuance and the 30th trading day following public announcement by the issuer of receipt from the U.S. Food and Drug Administration of clearance or approval of a modification to the product label for the Aquadex FlexFlow system to include pediatric patients. /s/ Gayle C. Aiken, by Power of Attorney 2019-03-12