X0306 4 2014-11-17 false 0001418091 TWITTER, INC. TWTR 0001590850 Bain Adam 1355 MARKET STREET, SUITE 900 SAN FRANCISCO CA 94103 false true false false President of Revenue Common Stock 100000 I See Footnote Common Stock 2014-11-17 4 M false 39020 0.845 A 628710 D Common Stock 2014-11-17 4 S false 39020 40.7845 D 589690 D Employee Stock Option (right to buy) 0.845 2014-11-17 4 M false 39020 0 D 2020-09-23 Common Stock 39020 1859125 D The shares are held of record by The Bain 2013 Grantor Retained Annuity Trust, dated October 22, 2013 for which the Reporting Person serves as trustee. The sales reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. Of the reported shares 569,718 shares are represented by RSUs. An option to purchase 2,646,456 shares was granted on September 24, 2010 and was exercised in part prior to the date on which the Reporting Person became subject to Section 16. The option was fully vested as of September 7, 2014. The reported price in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $40.45 to $41.64 per share. The Reporting Person undertakes to provide to the issuer, any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. /s/ Sean Edgett, Attorney-in-Fact 2014-11-19