X0508 4 2023-08-05 0 0001280058 BLACKBAUD INC BLKB 0001939343 Benjamin David J 65 FAIRCHILD STREET CHARLESTON SC 29492 0 1 0 0 EVP, Chief Commercial Officer 0 Common Stock 2023-08-05 4 A 0 6932 0.00 A 90680 D Common Stock 2023-08-05 4 A 0 2153 0.00 A 92833 D Common Stock 2023-08-05 4 F 0 1052 73.55 D 91781 D Common Stock 2023-08-05 4 F 0 981 73.55 D 90800 D Common Stock 2023-08-05 4 F 0 1968 73.55 D 88832 D The Compensation Committee determined that performance restricted stock units ("PRSUs") granted on August 5, 2022 would vest in three equal annual installments beginning on August 5, 2023, based on the Issuer achieving performance goals for the period ended December 31, 2022. The Compensation Committee determined that a portion of PRSUs granted on August 5, 2022 would vest in full on August 5, 2023 based on the Issuer achieving performance goals for the period ended December 31, 2022, subject to continued employment. The remaining PRSUs granted on August 5, 2022 will vest dependent on the achievement of performance goals for the periods ended December 31, 2023 and December 31, 2024, subject to continued employment. Represents shares forfeited to the Issuer in connection with the satisfaction of tax liabilities incurred upon the vesting of separate PRSUs granted August 5, 2022. Represents shares forfeited to the Issuer in connection with the satisfaction of tax liabilities incurred upon the vesting of restricted stock granted August 5, 2022. /s/ S. Halle Vakani, Attorney-in-Fact 2023-08-09