linked to neurodegenerative diseases. We believe this discovery platform will allow us to replenish our pipeline as programs graduate towards the clinic. We will need substantial additional funding to continue to advance its product candidates through clinical trials.
Company Information
We were incorporated in Delaware on December 13, 2006 under the name Proteoguard, Inc. and subsequently changed our name to Proteostasis Therapeutics, Inc. on September 17, 2007. On December 22, 2020, we effected a reverse merger, pursuant to which a wholly owned subsidiary of ours merged with and into Yumanity, Inc. (formerly Yumanity Therapeutics, Inc.), or Yumanity, with Yumanity surviving as a wholly owned subsidiary of ours. On December 22, 2020, we changed our name from Proteostasis Therapeutics, Inc. to Yumanity Therapeutics, Inc. Our principal executive offices are located at 40 Guest Street, Suite 4410, Boston, MA 02135, our telephone number is (617) 409-5300 and our website address is www.yumanity.com. The information contained in or accessible through our website does not constitute part of this prospectus.
Merger Transaction
On December 22, 2020, we completed our previously announced merger transaction with Yumanity in accordance with the terms of the Agreement and Plan of Merger and Reorganization, dated as of August 22, 2020, as amended on November 6, 2020, or the Merger Agreement, by and among us, a wholly-owned subsidiary of ours, or Merger Sub, Yumanity Holdings, LLC, or Holdings, and Yumanity, pursuant to which Merger Sub merged with and into Yumanity, with Yumanity surviving as our wholly owned subsidiary, or the Merger. Immediately prior to the effective time of the Merger, Holdings merged with and into Yumanity and Yumanity continued to exist as the surviving corporation.
On December 22, 2020, in connection with, and prior to the completion of, the Merger, we effected a 1-for-20 reverse stock split of our common stock, or the Reverse Stock Split. Under the terms of the Merger Agreement, we issued 0.2108 shares of our common stock for each share of Yumanity common stock outstanding immediately prior to the Merger, after taking into account the Reverse Stock Split. Immediately after the completion of the Merger, Yumanity changed its name from “Yumanity Therapeutics, Inc.” to “Yumanity, Inc.” and we changed our name from “Proteostasis Therapeutics, Inc.” to “Yumanity Therapeutics, Inc.” Yumanity was determined to be the accounting acquirer, our historical financials will be those of Yumanity and the business conducted by us became the business conducted by Yumanity.
Private Placement
On December 14, 2020, we entered into a Subscription Agreement with the selling stockholders named in this prospectus, or the Subscription Agreement, pursuant to which we sold and issued shares of our common stock, or the Private Placement, promptly after the closing of the Merger. At the closing of the Private Placement, we entered into a Registration Rights Agreement, dated December 22, 2020, with the selling stockholders named in this prospectus, or the Registration Rights Agreement.
At the closing of the Private Placement, on December 22, 2020 we sold and issued to the selling stockholders 1,460,861 shares of our common stock at a purchase price of $23.00 per share. The total purchase price paid by the selling stockholders in the closing was approximately $33.6 million.
Under the terms of the Registration Rights Agreement, we agreed to prepare and file, within 60 days after the closing, one or more registration statements with the SEC to register for resale the shares of our common stock issued under the Subscription Agreement, and generally to cause the applicable registration statements to become effective within 90 days after the closing of the Private Placement.