Item 1. Security and Issuer
This Amendment No. 3 to Schedule 13D amends the Schedule 13D filed with the Securities and Exchange Commission (the “SEC”) on October 14, 2011 by Alan H. Auerbach, the President and Chief Executive Officer of Puma Biotechnology, Inc. (the “Issuer”), as amended by the Schedule 13D/A filed with the SEC on November 9, 2012 and the Schedule 13D/A filed with the SEC on April 28, 2015 (as amended, the “Schedule 13D”), and relates to the Issuer’s common stock, par value $0.0001 per share ( “Common Stock”). The Issuer’s principal executive office is located at 10880 Wilshire Boulevard, Suite 2150, Los Angeles, California 90024.
Item 3. Source and Amount of Funds or Other Consideration
Item 3 of the Schedule 13D is hereby supplemented as follows:
935,299 shares of Common Stock reported as beneficially owned in this Schedule 13D represent shares that the Reporting Person has the right to acquire upon the exercise of vested stock options as of February 6, 2019 or that will become exercisable within 60 days of February 6, 2019.
1,980 shares of Common Stock reported as beneficially owned in this Schedule 13D represent shares that the Reporting Person has the right to acquire upon the vesting of restricted stock units within 60 days of February 6, 2019.
Item 4. Purpose of Transaction
Item 4 of the Schedule 13D is hereby supplemented as follows:
(d) Subject to final approval by the District Court of the Central District of California, Southern Division (the “District Court”) and pursuant to a proposed Stipulation of Settlement preliminarily approved by District Court on November 5, 2018, the Issuer intends to add one independent director to its Board of Directors, bringing the total number of directors on the Board of Directors to seven.
Item 5. Interest in Securities of the Issuer
Item 5 of the Schedule 13D is hereby superseded and replaced in full to read as follows:
The information set forth or incorporated inItems 2,3 and4 above is incorporated herein by reference.
(a) The Reporting Person beneficially owns 7,258,211 shares of Common Stock, which represents approximately 17.6% of the outstanding shares of Common Stock. The percentage of shares owned by the Reporting Person is based upon 38,134,994 shares of Common Stock outstanding as of October 26, 2018, as reported in the Issuer’s most recent Quarterly Report on Form10-Q, filed on November 5, 2018. Pursuant to Rule13d-3(d) of the Act, the Reporting Person has included as beneficially owned and outstanding the (i) 2,116,250 shares of Common Stock issuable upon exercise of the warrant described inItem 3, (ii) 935,299 shares of Common Stock issuable upon the exercise of vested stock options as of February 6, 2019 or that will become exercisable within 60 days of February 6, 2019, described inItem 3, and (iii) 1,980 shares of Common Stock issuable upon the vesting of restricted stock units within 60 days of February 6, 2019, described inItem 3.
(b) The Reporting Person has the sole power to vote or direct the vote, and to dispose or direct the disposition of, all of the shares of Common Stock beneficially owned by the Reporting Person as described in paragraph (a) above.
(c) From December 8, 2018 through February 6, 2019, the Reporting Person disposed of an aggregate of 13,594 shares of Common Stock in a series of transactions at prices ranging from $20.67 to $27.80 per share in open market transactions on the Nasdaq Global Select Market. Each of these dispositions was made to cover the payment of taxes due in connection with the vesting of restricted stock units held by the Reporting Person. During this time period, the Issuer granted to the Reporting Person restricted stock units representing rights to acquire 39,215 shares of Common Stock issuable upon the vesting of restricted stock units described in footnote 2 below, and stock options covering 62,634 shares of Common Stock subject to vesting requirements described in footnote 3 below. The number of shares of Common Stock disposed of or acquired and the price per share are provided below.
| | | | | | | | | | |
Date | | Acquired or Disposed Of | | Number of Shares | | | Price per Share | |
January 3, 2019 | | Disposed of | | | 4,424 | | | $ | 20.67 | |
January 22, 2019 | | Disposed of | | | 8,825 | | | $ | 24.74 | (1) |
February 4, 2019 | | Disposed of | | | 345 | | | $ | 27.80 | |
February 6, 2019 | | Acquired from Issuer | | | 39,215 | (2) | | $ | 0.00 | |
February 6, 2019 | | Acquired from Issuer | | | 62,634 | (3) | | | 0.00 | |
(1) | Represents the weighted average price per share. The shares were sold in multiple transactions at prices ranging from $24.55 to $24.01, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote. |