X0306 4 2016-12-13 0 0001372299 HISTOGENICS CORP HSGX 0001435895 SPLIT ROCK PARTNERS II, LP 10400 VIKING DRIVE SUITE 250 EDEN PRAIRIE MN 55344 0 0 1 0 0001626028 SPLIT ROCK PARTNERS II MANAGEMENT, LLC 10400 VIKING DRIVE SUITE 250 EDEN PRAIRIE MN 55344 0 0 1 0 Common Stock 2016-12-13 4 C 0 1114043 A 2775538 D Series A Convertible Preferred Stock 2016-12-13 4 C 0 2506.5968 0 D Common Stock 1114043 0 D All outstanding shares of the Issuer's Series A Convertible Preferred Stock converted on a 1:444.4444444 basis into shares of the Issuer's Common Stock. These shares have no expiration date. The securities are owned directly by SRP II. Voting and investment power over the securities is delegated to Split Rock Partners II Management, LLC ("SRPM II"), the general partner of SRP II. SRPM II has delegated voting and investment decisions to three individuals who require a two-thirds vote to act. SRPM II disclaims beneficial ownership of the securities except to the extent of any pecuniary interest therein. /s/ Stacy M. Campbell-Kraft, Authorized Representative 2017-01-27 /s/ Stacy M. Campbell-Kraft, Authorized Representative 2017-01-27