X0508 4 2026-02-02 0001819133 Tango Therapeutics, Inc. TNGX 0001513422 Beckman Daniella C/O TANGO THERAPEUTICS, INC., 201 BROOKLINE AVE., SUITE 901 BOSTON MA 02215 false true false false Chief Financial Officer false Common Stock 2026-02-02 4 A false 44330 0 A 194614 D Common Stock 2026-02-03 4 S false 10204 12.2573 D 184410 D Common Stock 2026-02-03 4 S false 113 12.8971 D 184297 D Stock Option (Right to Buy) 11.94 2026-02-02 4 A false 265980 0 A 2036-02-02 Common Stock 265980 265980 D These shares are represented by restricted stock units (the "RSUs"). Each RSU represents a contingent right to receive one share of Common Stock of the Issuer. The RSUs will vest over a three year period at a rate of 33% on February 1, 2027, 33% on February 14, 2028 and 34% on February 12, 2029, subject to the Reporting Person's continuous service with the Issuer as of each such vesting date. The Issuer has adopted a "sell-to-cover" policy to satisfy the tax withholding obligations of the Reporting Person. The sales reported on this Form 4 represent the number of shares required to be sold by the Reporting Person to cover tax withholding obligations in connection with the vesting of restricted stock units. Such sales were automatic and not at the discretion of the Reporting Person. Represents the weighted average sales price per share. The shares sold at prices ranging from $11.88 to $12.875 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer. Represents the weighted average sales price per share. The shares sold at prices ranging from $12.88 to $12.91 per share. Full information regarding the number of shares sold at each price shall be provided upon request to the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer. This option shall vest and become exercisable over a four-year period, at a rate of 25% on January 1, 2027 with the remaining option shares vesting in 36 equal monthly installments thereafter, subject to the Reporting Person's continuous service with the Issuer as of each such vesting date. /s/ Daniella Beckman 2026-02-04