BlackRock
SMWB icon

BlackRock’s Similarweb SMWB Stock Holding History

BlackRock’s Portfolio SMWB Stock Details SMWB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$333K Sell
127,504
-849,010
-87% -$3.54M ﹤0.01% 4626
2025
Q4 		$7.31M Buy
976,514
+31,250
+3% +$252K ﹤0.01% 3657
2025
Q3 		$8.79M Buy
945,264
+95,810
+11% +$858K ﹤0.01% 3515
2025
Q2 		$6.66M Buy
849,454
+18,386
+2% +$138K ﹤0.01% 3626
2025
Q1 		$6.87M Buy
831,068
+46,125
+6% +$569K ﹤0.01% 3500
2024
Q4 		$11.1M Buy
784,943
+355,052
+83% +$3.92M ﹤0.01% 3371
2024
Q3 		$3.8M Buy
429,891
+95,006
+28% +$751K ﹤0.01% 3807
2024
Q2 		$2.6M Buy
334,885
+73,023
+28% +$569K ﹤0.01% 3890
2024
Q1 		$2.36M Buy
261,862
+40,697
+18% +$301K ﹤0.01% 3954
2023
Q4 		$1.18M Sell
221,165
-2,447
-1% -$12.8K ﹤0.01% 4209
2023
Q3 		$1.45M Buy
+223,612
New +$1.46M ﹤0.01% 4114
2023
Q1 		– Sell
-248,701
Closed -$1.6M – 5689
2022
Q4 		$1.6M Sell
248,701
-45,525
-15% -$261K ﹤0.01% 4232
2022
Q3 		$1.72M Buy
294,226
+13,028
+5% +$108K ﹤0.01% 4266
2022
Q2 		$2.32M Sell
281,198
-188,958
-40% -$1.99M ﹤0.01% 4193
2022
Q1 		$6.09M Sell
470,156
-107,923
-19% -$1.54M ﹤0.01% 3855
2021
Q4 		$10.4M Buy
578,079
+3,322
+0.6% +$61K ﹤0.01% 3652
2021
Q3 		$12M Sell
574,757
-125,210
-18% -$2.72M ﹤0.01% 3593
2021
Q2 		$13.8M Buy
+699,967
New +$14.5M ﹤0.01% 3520

Other funds holding SMWB

N
Naspers South Africa $253M AUM 25.32% 1-Year Est. Return
MMH
Menora Mivtachim Holdings Ramat Gan, Israel $21.1B AUM 40.03% 1-Year Est. Return
YDMI
Y.D. More Investments Ramat Gan, Israel $2.55B AUM 104.35% 1-Year Est. Return
ICP
ION Crossover Partners Herzliya Pituach, Israel $36.9M AUM
UM
Ulysses Management New York $802M AUM 5.35% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
SST
S Squared Technology New York $264M AUM 73.25% 1-Year Est. Return
CP
CenterBook Partners Greenwich, Connecticut $1.86B AUM 24.52% 1-Year Est. Return
AFT
Alpha Family Trust Los Angeles, California $206M AUM 35.6% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

BlackRock's SMWB Position: Q1 2026 in Review

BlackRock reduced its Similarweb (SMWB) stake by 87% in Q1 2026, selling an estimated $3.54M and leaving 127,504 shares worth $333K. The position accounts for ﹤0.01% of the portfolio, ranked #4626.

BlackRock first reported a position in SMWB in Q2 2021 and has held it in 18 quarters since. The position peaked at $13.8M in Q2 2021. 80 funds tracked by Wall St. Rank hold SMWB as of Q1 2026.

  • BlackRock held 127,504 shares of Similarweb worth $333K as of Q1 2026.
  • BlackRock sold 849,010 Similarweb shares in Q1 2026, an estimated $3.54M.
  • Similarweb made up ﹤0.01% of BlackRock's portfolio in Q1 2026, its #4626 holding.
  • BlackRock first reported a position in Similarweb in Q2 2021 and has held it in 18 quarters since.
  • BlackRock's Similarweb position peaked at $13.8M in Q2 2021.
  • 80 funds tracked by Wall St. Rank held Similarweb as of Q1 2026.

Based on BlackRock's 13F filing for Q1 2026, filed 13 May 2026.