X0306 4 2019-08-29 0 0001337013 InfuSystem Holdings, Inc INFU 0001519525 Sansone Christopher R. C/O INFUSYSTEM HOLDINGS, INC. 31700 RESEARCH PARK DRIVE MADISON HEIGHTS MI 48071 1 0 0 0 Common Stock 0 D Common Stock 2019-08-29 4 P 0 3328 4.972 A 1456335 I See Common Stock 2019-08-29 4 P 0 665 4.972 A 306402 I See Common Stock 2019-08-30 4 P 0 8581 4.9509 A 1464916 I See Common Stock 2019-08-30 4 P 0 1716 4.9509 A 308118 I See The reported securities are directly owned by Sansone Partners, L.P., a Delaware limited partnership. The Reporting Person is the managing member of (i) the general partner of this limited partnership and (ii) the investment manager of this limited partnership and, as such, may be deemed to indirectly beneficially own the shares held by this limited partnership. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. The reported securities are directly owned by Sansone Partners (QP), L.P., a Delaware limited partnership. The Reporting Person is the managing member of (i) the general partner of this limited partnership and (ii) the investment manager of this limited partnership and, as such, may be deemed to indirectly beneficially own the shares held by this limited partnership. The Reporting Person disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein. /s/Jeanie Latz, Attorney-in-Fact for Christopher R. Sansone 2019-09-03