2 unchanged sentences
Our common stock trades on The Nasdaq Stock Market, LLC under the symbol “PTGX.”
−Removed: As of the close of business on March 2, 2023, there were two stockholders of record of our common stock.
+Added: As of the close of business on February 22, 2024, there were two stockholders of record of our common stock.
The number of stockholders of record is based upon the actual number of stockholders registered at such date and does not include holders of shares in “street names” or persons, partnerships, associates, or corporations, or other entities identified in security listings maintained by depositories.
2 unchanged sentences
Performance Graph
−Removed: The following is not deemed “filed” with the Securities and Exchange Commission and shall not be incorporated by reference into any filing we make under the Securities and Exchange Act of 1934, as amended, or the Securities Act of 1933, as amended, whether made before or after the date hereof and irrespective of any general incorporation by reference language in such filing.
−Removed: The graph below shows the cumulative total stockholder return assuming an investment on December 31, 2017 in each of our common stock, the Nasdaq Composite Index, the Nasdaq Biotechnology Index, and the Nasdaq Pharmaceutical Index.
+Added: The following is not deemed “filed” with the Securities and Exchange Commission and shall not be incorporated by reference into any filing we make under the Exchange Act or the Securities Act of 1933, as amended, whether made before or after the date hereof and irrespective of any general incorporation by reference language in such filing.
+Added: The graph below shows the cumulative total stockholder return assuming an investment on December 31, 2018 in each of our common stock, the Nasdaq Composite Index and the Nasdaq Biotechnology Index.
The graph compares the performance of a $100 investment in our common stock and in each index (assuming reinvestment of all dividends) from December 31, 2018 to December 31, 2023.
−Removed: Sale of Unregistered Securities
+Added: Recent Sales of Unregistered Securities
Issuer Purchases of Equity Securities
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.