William Blair & Company
IUSG icon

William Blair & Company’s iShares Core S&P US Growth ETF IUSG Stock Holding History

William Blair & Company’s Portfolio IUSG Stock Details IUSG Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$74.2M Buy
478,278
+58,584
+14% +$9.64M 0.21% 106
2025
Q4 		$70.5M Buy
419,694
+118,987
+40% +$19.8M 0.19% 121
2025
Q3 		$49.5M Buy
300,707
+26,271
+10% +$4.13M 0.13% 142
2025
Q2 		$41.3M Buy
274,436
+736
+0.3% +$99.8K 0.11% 158
2025
Q1 		$34.8M Sell
273,700
-41,697
-13% -$5.77M 0.1% 166
2024
Q4 		$44M Buy
315,397
+71,824
+29% +$9.86M 0.13% 146
2024
Q3 		$32.1M Buy
243,573
+37,330
+18% +$4.75M 0.09% 174
2024
Q2 		$26.3M Buy
206,243
+13,979
+7% +$1.67M 0.08% 182
2024
Q1 		$22.5M Sell
192,264
-6,106
-3% -$679K 0.07% 200
2023
Q4 		$20.7M Sell
198,370
-14,582
-7% -$1.44M 0.07% 202
2023
Q3 		$20.2M Buy
212,952
+8
+0% +$785 0.08% 195
2023
Q2 		$20.8M Buy
212,944
+15,525
+8% +$1.42M 0.08% 198
2023
Q1 		$17.5M Sell
197,419
-59,314
-23% -$5.05M 0.07% 221
2022
Q4 		$20.9M Buy
256,733
+135,558
+112% +$11.3M 0.09% 187
2022
Q3 		$9.72M Sell
121,175
-24,602
-17% -$2.22M 0.04% 291
2022
Q2 		$12.2M Buy
145,777
+26,302
+22% +$2.41M 0.05% 265
2022
Q1 		$12.6M Buy
119,475
+5,041
+4% +$524K 0.04% 294
2021
Q4 		$13.2M Buy
114,434
+13,296
+13% +$1.48M 0.04% 299
2021
Q3 		$10.4M Sell
101,138
-1,476
-1% -$156K 0.04% 323
2021
Q2 		$10.4M Buy
102,614
+6,590
+7% +$635K 0.04% 319
2021
Q1 		$8.72M Buy
96,024
+2,657
+3% +$239K 0.03% 343
2020
Q4 		$8.28M Buy
93,367
+15,481
+20% +$1.3M 0.03% 339
2020
Q3 		$6.23M Sell
77,886
-4,808
-6% -$377K 0.03% 351
2020
Q2 		$5.94M Sell
82,694
-7,410
-8% -$492K 0.03% 350
2020
Q1 		$5.14M Sell
90,104
-21,316
-19% -$1.4M 0.03% 324
2019
Q4 		$7.54M Buy
111,420
+17,857
+19% +$1.16M 0.04% 308
2019
Q3 		$6.9M Sell
93,563
-16,845
-15% -$1.07M 0.04% 312
2019
Q2 		$8.14M Sell
110,408
-22,492
-17% -$1.38M 0.05% 297
2019
Q1 		$9.79M Sell
132,900
-81,162
-38% -$4.66M 0.06% 264
2018
Q4 		$15.8M Buy
214,062
+149,511
+232% +$8.48M 0.12% 175
2018
Q3 		$4.01M Buy
64,551
+9,585
+17% +$579K 0.02% 420
2018
Q2 		$3.14M Buy
54,966
+16,799
+44% +$950K 0.02% 462
2018
Q1 		$2.08M Sell
38,167
-3,400
-8% -$191K 0.01% 541
2017
Q4 		$2.23M Buy
41,567
+3,092
+8% +$163K 0.02% 544
2017
Q3 		$1.94M Buy
38,475
+105
+0.3% +$5.2K 0.01% 563
2017
Q2 		$1.85M Sell
38,370
-902
-2% -$43.1K 0.01% 588
2017
Q1 		$1.81M Sell
39,272
-20,475
-34% -$927K 0.01% 568
2016
Q4 		$2.56M Buy
59,747
+31,704
+113% +$1.35M 0.02% 439
2016
Q3 		$1.19M Sell
28,043
-1,979
-7% -$83.9K 0.01% 609
2016
Q2 		$1.23M Buy
30,022
+9,936
+49% +$403K 0.01% 578
2016
Q1 		$815K Sell
20,086
-41,388
-67% -$1.59M 0.01% 667
2015
Q4 		$2.49M Buy
61,474
+35,320
+135% +$1.44M 0.02% 417
2015
Q3 		$993K Buy
26,154
+8,630
+49% +$348K 0.01% 763
2015
Q2 		$712K Sell
17,524
-750
-4% -$30.9K ﹤0.01% 1663
2015
Q1 		$742K Sell
18,274
-3,314
-15% -$132K ﹤0.01% 1631
2014
Q4 		$845K Buy
21,588
+3,262
+18% +$125K ﹤0.01% 1542
2014
Q3 		$684K Sell
18,326
-53,562
-75% -$2M ﹤0.01% 1597
2014
Q2 		$2.67M Buy
71,888
+34,392
+92% +$1.23M ﹤0.01% 1167
2014
Q1 		$1.33M Buy
37,496
+6,936
+23% +$245K ﹤0.01% 1328
2013
Q4 		$1.08M Buy
30,560
+6,714
+28% +$226K ﹤0.01% 1369
2013
Q3 		$766K Sell
23,846
-450
-2% -$14.1K ﹤0.01% 1419
2013
Q2 		$723K Buy
+24,296
New +$727K ﹤0.01% 1386

Other funds holding IUSG

Bank of America
Bank of America Charlotte, North Carolina $1.37T AUM 24.88% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $377B AUM 19.32% 1-Year Est. Return
Jones Financial Companies
Jones Financial Companies Des Peres, Missouri $208B AUM 16.12% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $374B AUM 17.66% 1-Year Est. Return
MFG
Merit Financial Group Alpharetta, Georgia $16.4B AUM 25.17% 1-Year Est. Return
BTI
Blue Trust Inc Alpharetta, Georgia $9.54B AUM 19.86% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

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

William Blair & Company increased its iShares Core S&P US Growth ETF (IUSG) stake by 14% in Q1 2026, buying an estimated $9.64M and bringing the position to 478,278 shares worth $74.2M. The position accounts for 0.21% of the portfolio, ranked #106.

William Blair & Company first reported a position in IUSG in Q2 2013 and has held it in 52 quarters since. 862 funds tracked by Wall St. Rank hold IUSG as of Q1 2026.

  • William Blair & Company held 478,278 shares of iShares Core S&P US Growth ETF worth $74.2M as of Q1 2026.
  • William Blair & Company bought 58,584 iShares Core S&P US Growth ETF shares in Q1 2026, an estimated $9.64M.
  • iShares Core S&P US Growth ETF made up 0.21% of William Blair & Company's portfolio in Q1 2026, its #106 holding.
  • William Blair & Company first reported a position in iShares Core S&P US Growth ETF in Q2 2013 and has held it in 52 quarters since.
  • 862 funds tracked by Wall St. Rank held iShares Core S&P US Growth ETF as of Q1 2026.

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