X0508 4 2026-01-02 0 0001393434 OCULAR THERAPEUTIX, INC OCUL 0001653082 Heier Jeffrey S. C/O OCULAR THERAPEUTIX, INC. 15 CROSBY DRIVE BEDFORD MA 01730 0 1 0 0 Chief Scientific Officer 0 Common Stock 2026-01-02 4 A 0 79112 0 A 326425 D Stock Option (Right to Buy) 11.82 2026-01-02 4 A 0 240932 0 A 2036-01-01 Common Stock 240932 240932 D On January 2, 2026, the reporting person was granted restricted stock units ("RSUs") under the 2021 Stock Incentive Plan, as amended, of Ocular Therapeutix, Inc. (the "Corporation"). Each RSU represents a right to receive one share of the Corporation's common stock. Subject to the reporting person's continued service to the Corporation, the RSUs will vest over three years, with 1/3 of the shares underlying the RSUs vesting on the one-year anniversary of the date of grant and an additional 1/3 of the shares underlying the RSUs vesting at the end of each successive one-year period thereafter. Includes 1,373 shares of common stock acquired under the Corporation's Amended and Restated 2014 Employee Stock Purchase Plan on December 31, 2025. Subject to the reporting person's continued service to the Corporation, the shares underlying this option vest over four years, vesting 1/48 monthly beginning on the one-month anniversary of the date of grant. /s/ Todd Anderman, Attorney-in-Fact for Jeffrey S. Heier 2026-01-06