X0306 4 2022-03-03 0 0000040888 AEROJET ROCKETDYNE HOLDINGS, INC. AJRD 0001005784 LICHTENSTEIN WARREN G C/O STEEL PARTNERS HOLDINGS L.P. 590 MADISON AVENUE, 32ND FLOOR NEW YORK NY 10022 1 1 0 0 Executive Chariman Common Stock, Par Value $0.10 2022-03-03 4 M 0 5803 A 526695 I By Rabbi Trust Common Stock, Par Value $0.10 207953 D Common Stock, Par Value $0.10 60546 I By Steel Partners, Ltd. Restricted Stock Unit 2022-03-03 4 M 0 5803 0.00 D Common Stock, Par Value $0.10 5803 5803 I By Rabbi Trust Each restricted stock unit represents a contingent right to receive one share of the Issuer's common stock. Mr. Lichtenstein, as the Chief Executive Officer and a control person of Steel Partners, Ltd. ("SPL"), may be deemed to beneficially own the shares of common stock owned directly by SPL. Mr. Lichtenstein disclaims beneficial ownership of the shares of common stock of the Company owned directly by SPL except to the extent of his pecuniary interest therein. On March 3, 2020, Mr. Lichtenstein was granted 17,409 restricted stock units, vesting in three equal annual installments beginning on the first anniversary of the grant date. By: /s/ Mario Marcon, Attorney-in-Fact for Warren G. Lichtenstein 2022-03-04