X0306 4 2019-04-01 0 0001364099 Innophos Holdings, Inc. IPHS 0001660951 Mink Kim Ann 259 PROSPECT PLAINS RD., BUILDING A CRANBURY NJ 08512 1 1 0 0 Chairman, CEO, President Common Stock, Par Value $0.001 2019-04-01 4 A 0 27611 0.00 A 101784 D 2019 Option to Purchase 31.03 2019-04-01 4 A 0 149828 0.00 A 2029-04-01 Common Stock 149828 149828 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 December 31, 2019. The second installment date is December 31, 2020, followed by the third installment due on December 31, 2021. The reporting person was granted options on April 1, 2019. Options vest in three equal annual installments beginning December 31, 2019. The second installment date is December 31, 2020, followed by third installment date of December 31, 2021. /s/ Joshua S. Horenstein, as Attorney-in-fact 2019-04-02