Ken Griffin’s iShares Core Universal USD Bond ETF IUSB Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2025
Q2
Sell
-400
Closed -$18.4K 13791
2025
Q1
$18.4K Buy
+400
New +$18.2K ﹤0.01% 13207
2024
Q3
Sell
-900
Closed -$40.7K 14733
2024
Q2
$40.7K Sell
900
-4,500
-83% -$202K ﹤0.01% 11972
2024
Q1
$246K Buy
+5,400
New +$246K ﹤0.01% 9898
2023
Q4
Sell
-6,100
Closed -$267K 14776
2023
Q3
$267K Sell
6,100
-600
-9% -$26.8K ﹤0.01% 9368
2023
Q2
$305K Buy
6,700
+900
+16% +$41.2K ﹤0.01% 9016
2023
Q1
$268K Buy
+5,800
New +$265K ﹤0.01% 9608

Other funds holding IUSB

Ken Griffin's IUSB Position: Q1 2026 in Review

Ken Griffin opened a new position in iShares Core Universal USD Bond ETF (IUSB) in Q1 2026: 293,817 shares worth $13.6M. The stake represents ﹤0.01% of the portfolio and ranks #2812 among its holdings. This is a return to the name: Ken Griffin previously reported a position in IUSB as recently as Q3 2025.

Ken Griffin first reported a position in IUSB in Q1 2015 and has held it in 18 quarters since. The position peaked at $59.9M in Q3 2025. 839 funds tracked by Wall St. Rank hold IUSB as of Q1 2026.

  • Ken Griffin held 293,817 shares of iShares Core Universal USD Bond ETF worth $13.6M as of Q1 2026.
  • iShares Core Universal USD Bond ETF was a new Ken Griffin position in Q1 2026.
  • iShares Core Universal USD Bond ETF made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #2812 holding.
  • Ken Griffin first reported a position in iShares Core Universal USD Bond ETF in Q1 2015 and has held it in 18 quarters since.
  • Ken Griffin's iShares Core Universal USD Bond ETF position peaked at $59.9M in Q3 2025.
  • 839 funds tracked by Wall St. Rank held iShares Core Universal USD Bond ETF as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.