X0407 4 2023-06-14 0 0001468748 Kodiak Sciences Inc. KOD 0001754045 BORGESON JOHN A. 1200 PAGE MILL ROAD PALO ALTO CA 94304 0 1 0 0 See Remarks 1 Common Stock 2023-06-14 4 S 0 1448 9.42 D 175332 D Common Stock 2023-06-15 4 M 0 5494 A 180826 D Common Stock 2023-06-16 4 S 0 2749 9.23 D 178077 D Restricted Stock Units 2023-06-15 4 M 0 3619 0.00 D Common Stock 3619 3619 D Restricted Stock Units 2023-06-15 4 M 0 1875 0.00 D Common Stock 1875 3750 D The sale reported on this Form 4 represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of the restricted stock units ("RSU") on June 11, 2023. The sale satisfies the tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person. The sale is intended to comply with the requirements of Rule 10b5-1(c)(1) under the Exchange Act and be interpreted to meet the requirements of Rule 10b5-1(c). Each RSU represents a contingent right to receive one (1) share of the Issuer's common stock. The sale reported on this Form 4 represents shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of the RSUs on June 15, 2023. The sale satisfies the tax withholding obligations to be funded by a "sell to cover" transaction and does not represent a discretionary trade by the Reporting Person. The sale is intended to comply with the requirements of Rule 10b5-1(c)(1) under the Exchange Act and be interpreted to meet the requirements of Rule 10b5-1(c). One-fourth (1/4th) of the RSUs vest on each of the first four anniversaries of June 15, 2020, subject to the Reporting Person's status as a Service Provider (as defined in the 2018 Equity Incentive Plan) on each vesting date. One-fourth (1/4th) of the RSUs vest on each of the first four anniversaries of June 15, 2021, subject to the Reporting Person's status as a Service Provider (as defined in the 2018 Equity Incentive Plan) on each vesting date. Executive Vice President and Chief Financial Officer /s/ David Peinsipp, Attorney-in-Fact for John A. Borgeson 2023-06-16