William Blair & Company
TTD icon

William Blair & Company’s Trade Desk TTD Stock Holding History

William Blair & Company’s Portfolio TTD Stock Details TTD Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$454K Sell
20,020
-6,680
-25% -$193K ﹤0.01% 1185
2025
Q4 		$1.01M Sell
26,700
-21,554
-45% -$955K ﹤0.01% 939
2025
Q3 		$2.36M Buy
48,254
+15,720
+48% +$997K 0.01% 691
2025
Q2 		$2.34M Sell
32,534
-2,169
-6% -$138K 0.01% 683
2025
Q1 		$1.9M Buy
34,703
+21,779
+169% +$1.97M 0.01% 722
2024
Q4 		$1.52M Buy
12,924
+4,448
+52% +$550K ﹤0.01% 776
2024
Q3 		$929K Sell
8,476
-5,222
-38% -$521K ﹤0.01% 923
2024
Q2 		$1.34M Sell
13,698
-1,827
-12% -$165K ﹤0.01% 792
2024
Q1 		$1.36M Buy
15,525
+5,893
+61% +$447K ﹤0.01% 784
2023
Q4 		$693K Sell
9,632
-1,400
-13% -$103K ﹤0.01% 978
2023
Q3 		$862K Buy
11,032
+2,399
+28% +$194K ﹤0.01% 885
2023
Q2 		$667K Buy
8,633
+812
+10% +$54.9K ﹤0.01% 975
2023
Q1 		$476K Buy
7,821
+41
+0.5% +$2.18K ﹤0.01% 1067
2022
Q4 		$349K Sell
7,780
-1,789
-19% -$90.7K ﹤0.01% 1166
2022
Q3 		$572K Sell
9,569
-1,389
-13% -$79K ﹤0.01% 994
2022
Q2 		$459K Sell
10,958
-2,431
-18% -$133K ﹤0.01% 1093
2022
Q1 		$927K Sell
13,389
-2,237
-14% -$162K ﹤0.01% 952
2021
Q4 		$1.43M Sell
15,626
-1,804
-10% -$158K ﹤0.01% 824
2021
Q3 		$1.23M Buy
17,430
+4,375
+34% +$338K ﹤0.01% 850
2021
Q2 		$1.01M Buy
13,055
+655
+5% +$41.9K ﹤0.01% 915
2021
Q1 		$808K Sell
12,400
-11,370
-48% -$879K ﹤0.01% 969
2020
Q4 		$1.9M Buy
23,770
+4,180
+21% +$316K 0.01% 666
2020
Q3 		$1.02M Sell
19,590
-6,270
-24% -$286K ﹤0.01% 755
2020
Q2 		$1.05M Sell
25,860
-2,510
-9% -$75.7K 0.01% 708
2020
Q1 		$548K Buy
28,370
+7,490
+36% +$194K ﹤0.01% 840
2019
Q4 		$542K Buy
20,880
+5,680
+37% +$128K ﹤0.01% 954
2019
Q3 		$285K Buy
15,200
+4,200
+38% +$100K ﹤0.01% 1141
2019
Q2 		$251K Buy
+11,000
New +$236K ﹤0.01% 1220

Other funds holding TTD

State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Federated Hermes
Federated Hermes Pittsburgh, Pennsylvania $61.5B AUM 30.7% 1-Year Est. Return

William Blair & Company's TTD Position: Q1 2026 in Review

William Blair & Company reduced its Trade Desk (TTD) stake by 25% in Q1 2026, selling an estimated $193K and leaving 20,020 shares worth $454K. The position accounts for ﹤0.01% of the portfolio, ranked #1185.

William Blair & Company first reported a position in TTD in Q2 2019 and has held it in 28 quarters since. The position peaked at $2.36M in Q3 2025. 774 funds tracked by Wall St. Rank hold TTD as of Q1 2026.

  • William Blair & Company held 20,020 shares of Trade Desk worth $454K as of Q1 2026.
  • William Blair & Company sold 6,680 Trade Desk shares in Q1 2026, an estimated $193K.
  • Trade Desk made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #1185 holding.
  • William Blair & Company first reported a position in Trade Desk in Q2 2019 and has held it in 28 quarters since.
  • William Blair & Company's Trade Desk position peaked at $2.36M in Q3 2025.
  • 774 funds tracked by Wall St. Rank held Trade Desk as of Q1 2026.

Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.