BlackRock
SST icon

BlackRock’s System1 SST Stock Holding History

BlackRock’s Portfolio SST Stock Details SST Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$100K Buy
43,353
+19,106
+79% +$60K ﹤0.01% 5001
2026
Q1 		$73.2K Hold
24,247
– – ﹤0.01% 5035
2025
Q4 		$95K Buy
24,247
+37
+0.2% +$191 ﹤0.01% 4919
2025
Q3 		$170K Sell
24,210
-14,912
-38% -$103K ﹤0.01% 4712
2025
Q2 		$216K Sell
39,122
-150,602
-79% -$668K ﹤0.01% 4655
2025
Q1 		$723K Sell
189,724
-2,905
-2% -$17.8K ﹤0.01% 4288
2024
Q4 		$1.73M Buy
192,629
+3,342
+2% +$33.6K ﹤0.01% 4072
2024
Q3 		$2.12M Buy
189,287
+15,924
+9% +$204K ﹤0.01% 3978
2024
Q2 		$2.64M Sell
173,363
-28,151
-14% -$475K ﹤0.01% 3885
2024
Q1 		$3.95M Sell
201,514
-7,652
-4% -$130K ﹤0.01% 3772
2023
Q4 		$4.64M Buy
209,166
+15,852
+8% +$235K ﹤0.01% 3721
2023
Q3 		$2.34M Buy
193,314
+33,694
+21% +$807K ﹤0.01% 3940
2023
Q2 		$7.18M Buy
159,620
+133,241
+505% +$5.04M ﹤0.01% 3568
2023
Q1 		$1.13M Hold
26,379
– – ﹤0.01% 4294
2022
Q4 		$1.24M Sell
26,379
-458
-2% -$23.5K ﹤0.01% 4341
2022
Q3 		$1.69M Buy
26,837
+185
+0.7% +$16.1K ﹤0.01% 4273
2022
Q2 		$1.86M Buy
26,652
+2,438
+10% +$307K ﹤0.01% 4279
2022
Q1 		$3.51M Buy
+24,214
New +$2.97M ﹤0.01% 4138

Other funds holding SST

LSA
Leonteq Securities AG Zurich, Switzerland $2.91B AUM 56.5% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
SS
SBI Securities Tokyo, Japan $4.4B AUM 74.26% 1-Year Est. Return
S
SignatureFD Atlanta, Georgia $7.49B AUM 24.82% 1-Year Est. Return

BlackRock's SST Position: Q2 2026 in Review

BlackRock increased its System1 (SST) stake by 79% in Q2 2026, buying an estimated $60K and bringing the position to 43,353 shares worth $100K. The position accounts for ﹤0.01% of the portfolio, ranked #5001.

BlackRock first reported a position in SST in Q1 2022 and has held it in 18 quarters since. The position peaked at $7.18M in Q2 2023. 5 funds tracked by Wall St. Rank hold SST as of Q2 2026.

  • BlackRock held 43,353 shares of System1 worth $100K as of Q2 2026.
  • BlackRock bought 19,106 System1 shares in Q2 2026, an estimated $60K.
  • System1 made up ﹤0.01% of BlackRock's portfolio in Q2 2026, its #5001 holding.
  • BlackRock first reported a position in System1 in Q1 2022 and has held it in 18 quarters since.
  • BlackRock's System1 position peaked at $7.18M in Q2 2023.
  • 5 funds tracked by Wall St. Rank held System1 as of Q2 2026.

Based on BlackRock's 13F filing for Q2 2026, filed 7 Aug 2026.