X0306 4 2017-12-15 0 0001314102 pSivida Corp. PSDV 0001334549 Mazzo David J C/O PSIVIDA CORP. 480 PLEASANT STREET WATERTOWN MA 02472 1 0 0 0 Employee Stock Option (right to buy) 1.77 2017-12-15 4 A 0 20000 0.00 A 2018-06-27 2027-06-27 Common Stock 20000 20000 D Deferred Stock Units 2017-12-15 4 A 0 17500 0.00 A 2018-06-27 Common Stock 17500 17500 D Each deferred stock unit represents the right to receive one share of the common stock of pSivida Corp. (the "Company"). Subsequent to the vesting of the deferred stock units, the deferred stock units will be settled in shares of the Company's common stock upon the earliest to occur of: (i) the reporting person's termination of service on the Company's Board of Directors and (ii) the occurrence of a "change in control" (as defined in the applicable award agreement) that constitutes a "change in the ownership or effective control of" the Company or "a change in the ownership of a substantial portion of the assets of" the Company, in each case, as determined under Section 409A of the Internal Revenue Code of 1986, as amended, and the regulations issued thereunder. /s/ John Mercer, Attorney-in-Fact 2017-12-19