1.1d William Blair Sell Side 2022 3 2022-10-25 10:49:17.570Z 2022 07 100.00% 98.07% 0.22% 1.58% 0.12% Virtu Americas LLC (NITE) 33.77% 33.77% 18.75% 37.72% 11.11% 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) 33.18% 33.22% 37.50% 28.95% 44.44% 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) 33.05% 33.01% 43.75% 33.33% 44.44% 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% 95.97% 0.70% 3.21% 0.12% Citadel Securities LLC (CDRG) 33.96% 33.71% 53.45% 37.59% 20.00% 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 Wall Street Access (VNDM) 33.24% 33.41% 18.97% 31.20% 40.00% 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 Virtu Americas LLC (NITE) 32.80% 32.88% 27.59% 31.20% 40.00% 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% 66.83% 5.13% 27.50% 0.54% 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 08 100.00% 98.21% 0.20% 1.17% 0.43% Citadel Securities LLC (CDRG) 33.59% 33.57% 34.78% 35.04% 32.00% 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 Wall Street Access (VNDM) 33.38% 33.38% 26.09% 35.04% 32.00% 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) 33.03% 33.04% 39.13% 29.93% 36.00% 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% 96.42% 0.71% 2.70% 0.17% Citadel Securities LLC (CDRG) 33.79% 33.38% 60.00% 40.42% 54.17% 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) 33.30% 33.45% 19.00% 31.50% 33.33% 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) 32.91% 33.16% 21.00% 28.08% 12.50% 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 Credit Suisse Securities (USA) LLC (FBCO) 0.01% 0.01% 0.00% 0.00% 0.00% 0 -11.0854 0 0.0000 0 0.0000 0 0.0000 William Blair may be charged fees for orders executed in Alternative Trading Systems. Orders routed further by FBCO are sent to exchanges which incur fees and rebates based on the exchange rules, as approved by the SEC, and are non-negotiable. FBCO may pass to William Blair any execution fees and rebates incurred for routing the orders with an additional routing fee. 100.00% 62.78% 8.26% 27.36% 1.60% 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 09 100.00% 98.50% 0.37% 1.07% 0.06% Virtu Americas LLC (NITE) 35.44% 35.40% 26.92% 42.67% 25.00% 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) 35.32% 35.30% 53.85% 29.33% 50.00% 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 Wall Street Access (VNDM) 29.24% 29.29% 19.23% 28.00% 25.00% 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% 95.97% 0.83% 3.08% 0.12% Citadel Securities LLC (CDRG) 35.85% 35.57% 53.52% 39.54% 50.00% 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) 34.93% 35.09% 28.17% 32.32% 20.00% 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) 29.22% 29.34% 18.31% 28.14% 30.00% 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% 67.13% 9.07% 23.10% 0.70% 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