X0306 4 2021-11-29 false 0001110611 ON24 INC. ONTF 0001841662 Sahasi Jayesh C/O ON24, INC. 50 BEALE STREET, 8TH FLOOR SAN FRANCISCO CA 94015 false true false false EV President, Product and CTO Common Stock 2021-11-29 4 A false 105810.00 0.00 A 429123.00 D Common Stock 2021-11-29 4 A false 100000.00 0.00 A 529497.00 D Represents shares underlying restricted stock units ("RSUs"). The RSUs will vest in 16 equal installments over a four-year period, with the first installment vesting on February 20, 2022, in each case subject to the Reporting Person's continued service through the applicable vesting date. Represents shares underlying RSUs. The RSUs will vest in three equal installments with the first 1/3 vesting on February 20, 2023, second 1/3 vesting on August 20, 2023, third 1/3 vesting on February 20, 2024, in each case subject to the Reporting Person's continued service through the applicable vesting date. Includes 374 shares of Common Stock acquired pursuant to the ON24, Inc. 2021 Employee Stock Purchase Plan on November 15, 2021. /s/ Jayesh Sahasi, William Weesner, Attorney-in-Fact 2021-12-01