William Blair & Company
ICSH icon

William Blair & Company’s iShares Ultra Short Duration Bond Active ETF ICSH Stock Holding History

William Blair & Company’s Portfolio ICSH Stock Details ICSH Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$402K Buy
7,942
+594
+8% +$30.1K ﹤0.01% 1223
2025
Q4 		$372K Buy
7,348
+2
+0% +$101 ﹤0.01% 1234
2025
Q3 		$373K Buy
7,346
+2
+0% +$101 ﹤0.01% 1221
2025
Q2 		$372K Sell
7,344
-1,001
-12% -$50.6K ﹤0.01% 1183
2025
Q1 		$423K Buy
8,345
+1
+0% +$51 ﹤0.01% 1134
2024
Q4 		$421K Sell
8,344
-198
-2% -$10K ﹤0.01% 1157
2024
Q3 		$433K Sell
8,542
-1,594
-16% -$80.6K ﹤0.01% 1162
2024
Q2 		$512K Sell
10,136
-1,453
-13% -$73.3K ﹤0.01% 1092
2024
Q1 		$586K Sell
11,589
-3,380
-23% -$171K ﹤0.01% 1043
2023
Q4 		$754K Buy
14,969
+3,476
+30% +$175K ﹤0.01% 950
2023
Q3 		$579K Buy
11,493
+2,433
+27% +$122K ﹤0.01% 1013
2023
Q2 		$456K Sell
9,060
-499
-5% -$25.1K ﹤0.01% 1083
2023
Q1 		$480K Hold
9,559
– – ﹤0.01% 1064
2022
Q4 		$478K Sell
9,559
-376
-4% -$18.8K ﹤0.01% 1055
2022
Q3 		$497K Sell
9,935
-31,184
-76% -$1.56M ﹤0.01% 1039
2022
Q2 		$2.06M Buy
41,119
+977
+2% +$48.9K 0.01% 635
2022
Q1 		$2.01M Sell
40,142
-240
-0.6% -$12.1K 0.01% 695
2021
Q4 		$2.04M Buy
40,382
+37,633
+1,369% +$1.9M 0.01% 724
2021
Q3 		$139K Sell
2,749
-247
-8% -$12.5K ﹤0.01% 1568
2021
Q2 		$151K Hold
2,996
– – ﹤0.01% 1560
2021
Q1 		$151K Buy
2,996
+282
+10% +$14.2K ﹤0.01% 1533
2020
Q4 		$137K Hold
2,714
– – ﹤0.01% 1514
2020
Q3 		$137K Hold
2,714
– – ﹤0.01% 1385
2020
Q2 		$137K Hold
2,714
– – ﹤0.01% 1320
2020
Q1 		$136K Hold
2,714
– – ﹤0.01% 1258
2019
Q4 		$137K Buy
2,714
+1,214
+81% +$61.1K ﹤0.01% 1367
2019
Q3 		$76K Hold
1,500
– – ﹤0.01% 1409
2019
Q2 		$76K Hold
1,500
– – ﹤0.01% 1452
2019
Q1 		$75K Hold
1,500
– – ﹤0.01% 1431
2018
Q4 		$75K Hold
1,500
– – ﹤0.01% 1348
2018
Q3 		$75K Hold
1,500
– – ﹤0.01% 1412
2018
Q2 		$75K Sell
1,500
-9,388
-86% -$470K ﹤0.01% 1372
2018
Q1 		$546K Hold
10,888
– – ﹤0.01% 891
2017
Q4 		$545K Buy
+10,888
New +$545K ﹤0.01% 931

Other funds holding ICSH

UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
FDCP
Foster Dykema Cabot & Partners Waltham, Massachusetts $1.57B AUM 20.41% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return
Temasek Holdings
Temasek Holdings Singapore $37.3B AUM 12.6% 1-Year Est. Return
DCM
Donaldson Capital Management Evansville, Indiana $3.5B AUM 28.74% 1-Year Est. Return
Wealth Enhancement Advisory Services
Wealth Enhancement Advisory Services Plymouth, Minnesota $59.8B AUM 29.42% 1-Year Est. Return
Royal Bank of Canada
Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return
Focus Partners Wealth
Focus Partners Wealth Boston, Massachusetts $89.9B AUM 20.5% 1-Year Est. Return

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

William Blair & Company increased its iShares Ultra Short Duration Bond Active ETF (ICSH) stake by 8.1% in Q1 2026, buying an estimated $30.1K and bringing the position to 7,942 shares worth $402K. The position accounts for ﹤0.01% of the portfolio, ranked #1223.

William Blair & Company first reported a position in ICSH in Q4 2017 and has held it in 34 quarters since. The position peaked at $2.06M in Q2 2022. 524 funds tracked by Wall St. Rank hold ICSH as of Q1 2026.

  • William Blair & Company held 7,942 shares of iShares Ultra Short Duration Bond Active ETF worth $402K as of Q1 2026.
  • William Blair & Company bought 594 iShares Ultra Short Duration Bond Active ETF shares in Q1 2026, an estimated $30.1K.
  • iShares Ultra Short Duration Bond Active ETF made up ﹤0.01% of William Blair & Company's portfolio in Q1 2026, its #1223 holding.
  • William Blair & Company first reported a position in iShares Ultra Short Duration Bond Active ETF in Q4 2017 and has held it in 34 quarters since.
  • William Blair & Company's iShares Ultra Short Duration Bond Active ETF position peaked at $2.06M in Q2 2022.
  • 524 funds tracked by Wall St. Rank held iShares Ultra Short Duration Bond Active ETF as of Q1 2026.

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