HISTOGEN INC. DL-0001 Watch

from 10-K 6 pages Description of Histogen Inc.’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934

from 8-K 18 pages Placement Agent Common Stock Purchase Warrant Histogen Inc

from 8-K 18 pages Series B Common Stock Purchase Warrant Histogen Inc

from 8-K 18 pages Series a Common Stock Purchase Warrant Histogen Inc

from 8-K 18 pages Pre-Funded Common Stock Purchase Warrant Histogen Inc

from 8-K 19 pages Placement Agent Common Stock Purchase Warrant Histogen Inc

from 10-K 5 pages Description of Histogen Inc.’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934

from 8-K 18 pages Placement Agent Common Stock Purchase Warrant Histogen Inc

from 8-K 18 pages Common Stock Purchase Warrant Histogen Inc

from 8-K 19 pages Placement Agent Common Stock Purchase Warrant Histogen Inc

from 8-K 19 pages Common Stock Purchase Warrant Histogen Inc

from S-1/A 20 pages Pre-Funded Common Stock Purchase Warrant Histogen Inc

from S-1/A 20 pages Placement Agent Common Stock Purchase Warrant Histogen Inc

from S-1/A 20 pages Common Stock Purchase Warrant Histogen Inc

from 8-K 19 pages Placement Agent Common Stock Purchase Warrant Histogen Inc

from 8-K 19 pages Common Stock Purchase Warrant Histogen Inc

from S-3 28 pages Histogen Inc., Issuer and [Trustee], Trustee Indenture Dated as of , 20 Subordinated Debt Securities

from S-3 31 pages Histogen Inc. Issuer and [Trustee], Trustee Indenture Dated as of , 20 Senior Debt Securities

from 10-Q 3 pages The Corporation Shall Furnish Without Charge to Each Stockholder Who So Requests a Statement of the Powers, Designations, Preferences and Relative, Participating, Optional or Other Special Rights of Each Class of Stock of the Corporation or Series Thereof and the Qualifications, Limitations or Restrictions of Such Preferences and/or Rights. Such Requests Shall Be Made to the Corporation’s Secretary at the Principal Office of the Corporation. Keep This Certificate in a Safe Place. if It Is Lost, Stolen, or Destroyed the Corporation Will Require a Bond Indemnity as a Condition to the Issuance of a Replacement Certificate. the Following Abbreviations, When Used in the Inscription on the Face of This Certificate, Shall Be Construed as Though They Were Written Out in Full According to Applicable Laws or Regulations

from 10-K 4 pages Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934 Conatus Pharmaceuticals Inc. (“Conatus”, “We”, “Our” or “US”) Has One Class of Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934, as Amended: Common Stock Description of Common Stock