William Blair & Company
RBLX icon

William Blair & Company’s Roblox RBLX Stock Holding History

William Blair & Company’s Portfolio RBLX Stock Details RBLX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.21M Sell
21,439
-5,211
-20% -$350K ﹤0.01% 880
2025
Q4 		$2.16M Buy
26,650
+14,355
+117% +$1.52M 0.01% 727
2025
Q3 		$1.7M Buy
12,295
+1,073
+10% +$133K ﹤0.01% 773
2025
Q2 		$1.18M Buy
11,222
+53
+0.5% +$4.16K ﹤0.01% 844
2025
Q1 		$651K Buy
11,169
+1,527
+16% +$96K ﹤0.01% 1011
2024
Q4 		$558K Buy
9,642
+3,295
+52% +$166K ﹤0.01% 1066
2024
Q3 		$281K Sell
6,347
-52
-0.8% -$2.17K ﹤0.01% 1311
2024
Q2 		$238K Sell
6,399
-206
-3% -$7.33K ﹤0.01% 1342
2024
Q1 		$252K Buy
6,605
+263
+4% +$10.7K ﹤0.01% 1321
2023
Q4 		$290K Buy
+6,342
New +$234K ﹤0.01% 1264
2023
Q3 		– Sell
-6,364
Closed -$256K – 1839
2023
Q2 		$256K Sell
6,364
-676
-10% -$27.1K ﹤0.01% 1314
2023
Q1 		$317K Buy
+7,040
New +$269K ﹤0.01% 1219
2022
Q4 		– Sell
-7,390
Closed -$265K – 1868
2022
Q3 		$265K Sell
7,390
-3,521
-32% -$146K ﹤0.01% 1278
2022
Q2 		$359K Buy
10,911
+2,007
+23% +$67.4K ﹤0.01% 1198
2022
Q1 		$412K Sell
8,904
-345
-4% -$20.8K ﹤0.01% 1238
2021
Q4 		$954K Buy
9,249
+2,537
+38% +$246K ﹤0.01% 977
2021
Q3 		$507K Buy
6,712
+5
+0.1% +$411 ﹤0.01% 1153
2021
Q2 		$603K Buy
+6,707
New +$539K ﹤0.01% 1088

Other funds holding RBLX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Capital International Investors
Capital International Investors Los Angeles, California $427B AUM 29.17% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Capital World Investors
Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
T. Rowe Price Associates
T. Rowe Price Associates Baltimore, Maryland $865B AUM 30.76% 1-Year Est. Return
IC
IEQ Capital Foster City, California $21.5B AUM 75.26% 1-Year Est. Return

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

William Blair & Company reduced its Roblox (RBLX) stake by 20% in Q1 2026, selling an estimated $350K and leaving 21,439 shares worth $1.21M. The position accounts for ﹤0.01% of the portfolio, ranked #880.

William Blair & Company first reported a position in RBLX in Q2 2021 and has held it in 18 quarters since. The position peaked at $2.16M in Q4 2025. 832 funds tracked by Wall St. Rank hold RBLX as of Q1 2026.

  • William Blair & Company held 21,439 shares of Roblox worth $1.21M as of Q1 2026.
  • William Blair & Company sold 5,211 Roblox shares in Q1 2026, an estimated $350K.
  • Roblox made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #880 holding.
  • William Blair & Company first reported a position in Roblox in Q2 2021 and has held it in 18 quarters since.
  • William Blair & Company's Roblox position peaked at $2.16M in Q4 2025.
  • 832 funds tracked by Wall St. Rank held Roblox as of Q1 2026.

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