X0306 4 2017-12-15 0 0001314102 pSivida Corp. PSDV 0001450485 Lurker Nancy C/O PSIVIDA CORP 480 PLEASANT STREET WATERTOWN MA 02472 1 1 0 0 President and CEO Restricted Stock Units 2017-12-15 4 A 0 120000 0.00 A Common Stock 120000 120000 D Stock Option (right to buy) 1.77 2017-12-15 4 A 0 240000 0.00 A 2027-06-27 Common Stock 240000 240000 D Each restricted stock unit represents a contingent right to receive one share of the Company's common stock. The restricted stock units will vest in three equal annual installments beginning June 27, 2018. Vested shares will be delivered to the reporting person within 30 days following each respective vesting date. The option to purchase will vest and become exercisable in three equal annual installments beginning June 27, 2018. /s/ John Mercer, Attorney-in-Fact 2017-12-19