X0306 4 2015-05-08 0001364099 Innophos Holdings, Inc. IPHS 0001379631 Thurston Mark 259 PROSPECT PLAINS ROAD CRANBURY NJ 08512 1 VP Common Stock 2015-05-08 4 A 0 987 49.54 A 9078 D 2015 Option to Purchase Common Stock 49.54 2015-05-08 4 A 0 4198 0 A 2025-03-31 Common Stock 4198 4198 D On May 8, 2015, these shares of restricted common stock were granted to the reporting person, to be held in escrow, subject to certain vesting and forfeiture provisions. The grant vests in three equal installments over a three year period beginning March 31, 2016. The second installment date is March 31, 2017, followed by the third installment date of March 31, 2018. The reporting person was granted options on May 8, 2015. Options vest in 3 equal annual installments over a three year period beginning March 31, 2016. The second installment date is March 31, 2017, followed by the third installment date of March 31, 2018. Mark Thurston 2015-05-12