XT
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XTX Topco’s Blackrock BLK Stock Holding History

XTX Topco’s Portfolio BLK Stock Details BLK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$17.5M Buy
+18,251
New +$18.9M 0.23% 26
2026
Q1 		– Sell
-1,241
Closed -$1.33M – 3859
2025
Q4 		$1.33M Buy
+1,241
New +$1.36M 0.03% 830
2025
Q3 		– Sell
-588
Closed -$617K – 2593
2025
Q2 		$617K Buy
+588
New +$556K 0.03% 960
2024
Q3 		– Sell
-2,684
Closed -$2.11M – 2107
2024
Q2 		$2.11M Buy
+2,684
New +$2.09M 0.18% 116
2023
Q4 		– Sell
-1,239
Closed -$801K – 1618
2023
Q3 		$801K Sell
1,239
-833
-40% -$582K 0.14% 175
2023
Q2 		$1.43M Buy
+2,072
New +$1.39M 0.26% 36
2023
Q1 		– Sell
-409
Closed -$290K – 1282
2022
Q4 		$290K Buy
+409
New +$273K 0.06% 608
2021
Q2 		– Sell
-1,282
Closed -$967K – 821
2021
Q1 		$967K Buy
+1,282
New +$930K 0.47% 10

Other funds holding BLK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Temasek Holdings
Temasek Holdings Singapore $37.3B AUM 12.6% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

XTX Topco's BLK Position: Q2 2026 in Review

XTX Topco opened a new position in Blackrock (BLK) in Q2 2026: 18,251 shares worth $17.5M. The stake represents 0.23% of the portfolio and ranks #26 among its holdings. This is a return to the name: XTX Topco previously reported a position in BLK as recently as Q4 2025.

XTX Topco first reported a position in BLK in Q1 2021 and has held it in 8 quarters since. 2,328 funds tracked by Wall St. Rank hold BLK as of Q2 2026.

  • XTX Topco held 18,251 shares of Blackrock worth $17.5M as of Q2 2026.
  • Blackrock was a new XTX Topco position in Q2 2026.
  • Blackrock made up 0.23% of XTX Topco's portfolio in Q2 2026, its #26 holding.
  • XTX Topco first reported a position in Blackrock in Q1 2021 and has held it in 8 quarters since.
  • 2,328 funds tracked by Wall St. Rank held Blackrock as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.