X0306 4 2023-02-14 0000055135 KELLY SERVICES INC KELYA 0001819744 Browning Tammy L 999 WEST BIG BEAVER ROAD TROY MI 48084-4716 1 Senior Vice President Class A Common Stock, Par Value $1 2023-02-14 4 A 0 9257 0 A 34379 D Class A Common Stock, Par Value $1 2023-02-14 4 A 0 2084 0 A 36463 D Class A Common Stock, Par Value $1 2023-02-14 4 A 0 2166 0 A 38629 D Class A Common Stock, Par Value $1 2023-02-14 4 F 0 304 17.93 D 38325 D Class A Common Stock, Par Value $1 2023-02-14 4 F 0 1373 17.93 D 36952 D Restricted stock units granted following satisfaction of specified performance criteria for 2022. One half (50%) of the shares vested on February 14, 2023 and one half (50%) of shares will vest on August 14, 2023. Each restricted stock unit represents a contingent right to receive one share of Kelly Services Class A common stock. Restricted stock units granted following satisfaction of specified performance criteria for 2022 and certification as earned by the Compensation and Talent Management Committee. One half (50%) of the shares vested on February 14, 2023 and one half (50%) of shares will vest on February 14, 2024. Restricted stock units granted following satisfaction of specified performance criteria for 2022 and certification as earned by the Compensation and Talent Management Committee. 100% of the shares will vest on February 14, 2025. /s/ Cynthia D. Mull, attorney-in-fact for Ms. Browning 2023-02-16