X0306 4 2017-04-03 0001364099 Innophos Holdings, Inc. IPHS 0001660951 Mink Kim Ann 259 PROSPECT PLAINS RD. BLDG A CRANBURY NJ 08512 1 1 CEO, President Common Stock, Par Value $0.001 2017-04-03 4 A 0 12021 0 A 81027 D 2017 Option to Purchase 52.51 2017-04-03 4 A 0 40235 0 A 2027-03-31 Common Stock 40235 40235 D On April 3, 2017, the reporting person was granted restricted shares of the issuer's common stock, subject to certain vesting and forfeiture provisions. The grant vests in three equal annual installments beginning on December 31, 2017. The reporting person was granted options on April 3, 2017. Options vest in 3 equal installments beginning December 31, 2017. The second installment is December 31, 2018, followed by the third installment date of December 31, 2019. /s/ Joshua S. Horenstein, as Attorney-In-Fact 2017-04-04