1.1d William Blair Sell Side 2022 1 2022-04-25 16:01:14.570Z 2022 01 100.00% 96.69% 0.51% 1.78% 1.02% Virtu Americas LLC (NITE) 33.84% 33.89% 32.00% 32.39% 32.67% 0.0000 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Virtu Americas LLC (NITE) for these trades Wall Street Access (VNDM) 33.65% 33.65% 26.00% 33.52% 37.62% 0.0000 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Wall Street Access (VNDM) for these trades Citadel Securities LLC (CDRG) 32.51% 32.46% 42.00% 34.09% 29.70% 0.0000 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Citadel Securities LLC (CDRG) for these trades 100.00% 92.65% 1.27% 4.98% 1.10% Citadel Securities LLC (CDRG) 34.95% 34.29% 46.89% 36.42% 69.28% 0.0000 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Citadel Securities LLC (CDRG) for these trades Virtu Americas LLC (NITE) 32.76% 33.00% 26.55% 33.53% 16.34% 0.0000 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Virtu Americas LLC (NITE) for these trades Wall Street Access (VNDM) 32.28% 32.70% 26.55% 29.77% 14.38% 0.0000 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Wall Street Access (VNDM) for these trades RBC Capital Markets Corporation (RBCM) 0.01% 0.00% 0.00% 0.29% 0.00% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from RBC Capital Markets Corporation (RBCM) for these trades 100.00% 67.63% 5.54% 25.50% 1.33% National Financial Services LLC (NFSC) 100.00% 100.00% 100.00% 100.00% 100.00% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from National Financial Services LLC (NFSC) for these trades 2022 02 100.00% 96.07% 0.65% 2.41% 0.87% Virtu Americas LLC (NITE) 33.38% 33.36% 34.69% 35.16% 30.30% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Virtu Americas LLC (NITE) for these trades Citadel Securities LLC (CDRG) 33.32% 33.20% 44.90% 35.71% 30.30% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Citadel Securities LLC (CDRG) for these trades Wall Street Access (VNDM) 33.30% 33.44% 20.41% 29.12% 39.39% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Wall Street Access (VNDM) for these trades 100.00% 91.26% 1.07% 6.59% 1.08% Citadel Securities LLC (CDRG) 34.34% 33.92% 44.14% 35.29% 54.46% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Citadel Securities LLC (CDRG) for these trades Wall Street Access (VNDM) 32.85% 33.11% 23.42% 32.36% 23.21% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Wall Street Access (VNDM) for these trades Virtu Americas LLC (NITE) 32.80% 32.97% 32.43% 32.21% 22.32% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Virtu Americas LLC (NITE) for these trades Clearpool Execution Services LLC (CPEM) 0.01% 0.00% 0.00% 0.15% 0.00% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Clearpool Execution Services LLC (CPEM) for these trades 100.00% 64.83% 8.96% 25.12% 1.09% National Financial Services LLC (NFSC) 100.00% 100.00% 100.00% 100.00% 100.00% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from National Financial Services LLC (NFSC) for these trades 2022 03 100.00% 97.87% 0.21% 1.44% 0.48% Wall Street Access (VNDM) 34.59% 34.78% 0.00% 19.05% 57.14% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Wall Street Access (VNDM) for these trades Citadel Securities LLC (CDRG) 32.94% 32.75% 66.67% 47.62% 14.29% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Citadel Securities LLC (CDRG) for these trades Virtu Americas LLC (NITE) 32.46% 32.47% 33.33% 33.33% 28.57% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Virtu Americas LLC (NITE) for these trades 100.00% 92.24% 1.50% 5.88% 0.39% Citadel Securities LLC (CDRG) 34.78% 34.10% 40.74% 46.23% 0.00% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Citadel Securities LLC (CDRG) for these trades Virtu Americas LLC (NITE) 33.33% 33.43% 37.04% 30.19% 42.86% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Virtu Americas LLC (NITE) for these trades Wall Street Access (VNDM) 31.72% 32.47% 22.22% 21.70% 42.86% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Wall Street Access (VNDM) for these trades Clearpool Execution Services LLC (CPEM) 0.17% 0.00% 0.00% 1.89% 14.29% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from Clearpool Execution Services LLC (CPEM) for these trades 100.00% 64.30% 6.90% 27.31% 1.49% National Financial Services LLC (NFSC) 100.00% 100.00% 100.00% 100.00% 100.00% 0 0.0000 0 0.0000 0 0.0000 0 0.0000 William Blair did not receive payment for order flow from National Financial Services LLC (NFSC) for these trades