X0306 4 2016-06-13 0 0001560327 Rapid7, Inc. RPD 0001647655 Young Christopher David C/O RAPID7, INC. 100 SUMMER STREET BOSTON MA 02110 1 0 0 0 Common Stock 2016-06-13 4 A 0 6891 0.00 A 81799 D Common Stock 53317 I By Trust Stock Option (Right to Buy) 14.51 2016-06-13 4 A 0 15174 0.00 A 2026-06-13 Common Stock 15174 15174 D This security represents restricted stock units. Each restricted stock unit represents a contingent right to receive one share of common stock of the Issuer. This restricted stock unit grant vests in full on the earlier of: (i) the date of the Issuer's next annual meeting of stockholders held after the date of the grant or (ii) the first anniversary of the date of grant, in each case subject to the Reporting Person's continued service with the Issuer through the applicable vesting date. These shares are held by the Christopher D. Young Revocable Trust (the "Trust"), of which Christopher Young is the sole trustee. The Reporting Person has sole voting and dispositive power over the held shares by the Trust. The Reporting Person disclaims beneficial ownership of the shares owned by the Trust, except to the extent of his pecuniary interest therein. This option vests in full on the earlier of: (i) the date of the Issuer's next annual meeting of stockholders held after the date of the grant or (ii) the first anniversary of the date of grant, in each case subject to the Reporting Person's continued service with the Issuer through the applicable vesting date. /s/ Peter Kaes, Attorney-in-Fact 2016-06-15