MBVX

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The 1-for-3 reverse stock split will automatically convert three current shares of MabVax’s common stock into one new share of common stock. As of February 16, 2018, the result of the reverse split will reduce the number of outstanding shares of MabVax common stock to 9,160,506 shares, excluding unconverted preferred stock, outstanding and unexercised share options and warrants and subject to adjustment for fractional shares.

As of October 18, 2017, there were (i) 19,919,261 shares of common stock outstanding, (ii) 44,104 shares of Series D Preferred Stock outstanding that are convertible into 596,000 shares of common stock, (iii) 33,333 shares of Series E Preferred Stock outstanding that are convertible into 519,751 shares of common stock, (iv) 1,048,460 shares of Series I Preferred Stock outstanding that are convertible into 1,048,460 shares of common stock, (v) 772.73 shares of Series J Preferred Stock outstanding that are convertible into 772,730 shares of common stock, (vi) 63,150 shares of Series K Preferred Stock outstanding that are convertible into 6,315,000 shares of common stock, and (vii) 58,000 shares of Series L Preferred Stock outstanding that are convertible into 9,666,667 shares of common stock subject to obtaining stockholder approval.

from December 31, 2016 to June 30, 2017 Preferred stock conversions Issuance of inducement shares Underwritten offering, net of costs Private placement, net of costs Stock issued for services Stock issued upon vesting of RSUs

from December 31, 2015 to September 30, 2016 Issuance of Series F convertible preferred stock, warrants and common stock in August public offering, net of $866,410 in issuance costs Conversion of Series D Preferred Stock to common stock Issuance of whole in lieu of fractional shares resulting from reverse split in August 2016 Issuance of additional common stock related to April 2015 financing Stock issued for services Stock issued upon vesting of restricted stock units in April, July and August of 2016, net of payroll taxes

On August 16, 2016, we filed a certificate of amendment to our Amended and Restated Certificate of Incorporation to effect a 1-for-7.4 reverse stock split of our outstanding common stock in connection with the listing of our common stock on The NASDAQ Capital Market.

From December 31, 2015 to June 30, 2016 Conversion of Series D Preferred Stock to common stock Stock issued for services Stock issued upon vesting of restricted stock units on April 2, 2016, net of payroll taxes

From December 31, 2015 to March 31, 2016 Conversion of Series D Preferred Stock to common stock Stock issued for services