X0609 4 2026-08-24 0 0001393434 OCULAR THERAPEUTIX, INC OCUL 0002011869 Kaiser Peter false C/O OCULAR THERAPEUTIX, INC. 14 CROSBY DRIVE, 3RD FLOOR BEDFORD MA 01730 0 1 0 0 Chief Development Officer 1 Common Stock 2026-08-24 4 S 0 3035 10.77 D 264378 D Represents shares of common stock of Ocular Therapeutix, Inc. (the "Corporation") sold, pursuant to a durable automatic sale instruction adopted by the reporting person on April 9, 2024, effecting the sell-to-cover election of the reporting person to satisfy tax withholding obligations in connection with the vesting of restricted stock units on August 22, 2026. The sales do not represent a discretionary trade by the reporting person. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.6429 to $10.9125, inclusive. The reporting person undertakes to provide to the Corporation, any security holder of the Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (2) to this Form 4. Includes 1,272 shares of common stock acquired under the Corporation's Amended and Restated 2014 Employee Stock Purchase Plan on June 30, 2026. /s/ Todd Anderman, Attorney-in-Fact for Peter Kaiser 2026-08-26