X0306 4 2021-09-08 0 0001777946 IronNet, Inc. IRNT 0001733851 Welch William E C/O IRONNET, INC., 7900 TYSONS ONE PLACE SUITE 400 MCLEAN VA 22102 1 1 0 0 Co-CEO & Director Common Stock 2021-09-08 4 A 0 244126 0.00 A 4682800 D Common Stock 2021-09-08 4 A 0 244126 0.00 A 4926926 D Represents shares underlying restricted stock units. Each restricted stock unit represents a contingent right to receive one share of common stock of the issuer. Represents the earned portion of a performance-based restricted stock unit award based on the satisfaction of certain performance criteria set forth in the award. In light of the performance-based vesting conditions of the award, such award was not reportable under Section 16 until satisfaction of the performance criteria was determined to have occurred. The issuer's board of directors determined on September 8, 2021 that the performance criteria associated with the award had been satisfied. Of the shares underlying this restricted stock unit award, 25% will vest on July 31, 2022 and the remainder will vest in 36 monthly installments thereafter, such that the award will be fully vested on July 31, 2025, subject to the reporting person's continuous service with the issuer as of each such vesting date. Of the shares underlying this restricted stock unit award, 25% will vest on August 26, 2022 and the remainder will vest in 36 monthly installments thereafter, such that the award will be fully vested on August 26, 2025, subject to the reporting person's continuous service with the issuer as of each such vesting date. /s/ Brian F. Leaf, attorney-in-fact 2021-09-10