X0306 4 2019-04-01 0 0001364099 Innophos Holdings, Inc. IPHS 0001379636 Feuerbach Mark 259 PROSPECT PLAINS RD., BUILDING A CRANBURY NJ 08512 0 1 0 0 Interim CFO Common Stock, Par Value $0.001 2019-04-01 4 A 0 5191 0.00 A 32078 D 2019 Option to Purchase 31.03 2019-04-01 4 A 0 28171 0.00 A 2029-04-01 Common Stock 28171 28171 D On April 1, 2019, 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, 2020. The second installment date is March 31, 2021, followed by the third installment due on March 31, 2022. The reporting person was granted options on April 1, 2019. Options vest in three equal annual installments beginning March 31, 2020. The second installment date is March 31, 2021, followed by the third installment date of March 31, 2022. /s/ Joshua S. Horenstein, as Attorney-in-fact 2019-04-02