Myokardia
MYOK

From June 30, 2020 to September 30, 2020 Issuance of common stock upon the exercise of options and release of stock awards

from March 31, 2020 to June 30, 2020 Issuance of common stock in connection with the follow-on offering, net of issuance costs of $28,909 Issuance of common stock upon the exercise of options and release of stock awards Issuance of common stock pursuant to employee stock purchase plan

1.Common stock offered by us 5,250,000 shares of our common stock. 2.The number of shares of our common stock to be outstanding immediately after this offering is based on 46,612,186 shares of our common stock outstanding as of March 31, 2020.

From December 31, 2019 to March 31, 2020 Issuance of common stock upon the exercise of options and release of stock awards

From December 31, 2018 to December 31, 2019 Issuance of common stock in connection with the 2019 follow-on offering, net of issuance costs of $17,638 Issuance of common stock under equity incentive and employee stock purchase plans

From June 30, 2019 to September 30, 2019 Issuance of common stock upon the exercise of options and release of stock awards

From March 31, 2019 to June 30, 2019 Issuance of common stock upon the exercise of options, release of stock awards and purchases under employee stock purchase plan

from December 31, 2018 to March 31, 2019 Issuance of common stock in connection with the 2019 follow-on offering, net of issuance costs of $17,638 Issuance of common stock upon the exercise of options and release of stock awards

from December 31, 2017 to December 31, 2018 Issuance of common stock in connection with the 2018 follow-on offering, net of issuance costs of $12,233 Issuance of common stock upon the exercise of options and purchases under employee stock purchase plan Repurchase of early exercised stock options

from December 31, 2016 to December 31, 2017 Issuance of common stock in connection with the 2017 follow-on offering, net of issuance costs of $9,025 Issuance of common stock for stock option exercises Repurchase of early exercised stock options

from December 31, 2015 to December 31, 2016 Issuance of common stock in connection with the 2016 follow-on offering, net of issuance costs of $4,441 Issuance of common stock for stock option exercises Issuance of common stock for employee stock purchase plan Repurchase of early exercised stock options

On October 3, 2016, the Company completed a follow-on public offering of 4,370,000 shares of common stock at an offering price of $15.00 per share, resulting in net proceeds of approximately $61.0 million, after deducting underwriting discounts, commissions and estimated offering costs.

From December 31, 2014 to December 31, 2015 Issuance of Common Stock during initial public offering(IPO), net of issuance costs of $6,903 Issuance of Series B redeemable convertible preferred stock, net of issuance costs of $163 Issuance of common stock for stock option exercises Repurchase of early exercised stock options Conversion of Series A redeemable convertible preferred stock into common stock during IPO Conversion of Series A-1 redeemable convertible preferred stock into common stock during IPO Conversion of Series B redeemable convertible preferred stock into common stock during IPO A 1-for-3.675 reverse split of our outstanding common stock, which became effective on October 23, 2015

a 1-for-3.675 reverse split of our outstanding common stock, which became effective on October 23, 2015

a 1-for-3.675 reverse split of our outstanding common stock, which became effective on October 23, 2015

From December 31, 2014 to June 30, 2015 Issuance of Series B redeemable convertible preferred stock, net of issuance costs of $163 (unaudited) Issuance of common stock for stock option exercises (unaudited) Repurchase of early exercised stock options (unaudited)