X0306 4/A 2020-09-01 2020-09-03 0 0001411690 Bionano Genomics, Inc BNGO 0001821605 Chaubey Alka C/O BIONANO GENOMICS, INC. 9540 TOWNE CENTRE DRIVE, SUITE 100 SAN DIEGO CA 92121 0 1 0 0 Chief Medical Officer Stock Option (Right to Buy) 0.56 2020-09-01 4 A 0 300000 0.00 A 2030-09-01 Common Stock 300000 300000 D 25% of the shares subject to the stock option vest and become exercisable on August 31, 2021, and the remaining shares subject to the stock option vest and become exercisable in 36 equal monthly installments thereafter, subject to the Reporting Person's continuous service through each such applicable vesting date and the terms of the Issuer's 2020 Inducement Plan. The Form 4 is being amended for the sole purpose to change a typographical error in the exercise price of derivative security in column 2 of Table II. /s/ R. Erik Holmlin, Attorney-in-Fact 2020-09-03