William Blair & Company
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William Blair & Company’s iShares S&P Mid-Cap 400 Growth ETF IJK Stock Holding History

William Blair & Company’s Portfolio IJK Stock Details IJK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$3.86M Buy
32,847
+497
+2% +$55.2K 0.01% 589
2026
Q1 		$3.26M Sell
32,350
-1,696
-5% -$174K 0.01% 607
2025
Q4 		$3.3M Buy
34,046
+4,112
+14% +$396K 0.01% 616
2025
Q3 		$2.87M Buy
29,934
+69
+0.2% +$6.5K 0.01% 645
2025
Q2 		$2.72M Sell
29,865
-2,770
-8% -$237K 0.01% 641
2025
Q1 		$2.72M Sell
32,635
-47
-0.1% -$4.23K 0.01% 643
2024
Q4 		$2.97M Buy
32,682
+877
+3% +$82.6K 0.01% 623
2024
Q3 		$2.92M Buy
31,805
+126
+0.4% +$11.3K 0.01% 620
2024
Q2 		$2.79M Buy
31,679
+598
+2% +$52.9K 0.01% 612
2024
Q1 		$2.84M Buy
31,081
+176
+0.6% +$14.7K 0.01% 601
2023
Q4 		$2.45M Sell
30,905
-494
-2% -$36.2K 0.01% 624
2023
Q3 		$2.27M Sell
31,399
-820
-3% -$61.8K 0.01% 618
2023
Q2 		$2.42M Sell
32,219
-347
-1% -$24.8K 0.01% 622
2023
Q1 		$2.33M Sell
32,566
-126
-0.4% -$9K 0.01% 616
2022
Q4 		$2.23M Sell
32,692
-586
-2% -$40.3K 0.01% 603
2022
Q3 		$2.1M Buy
33,278
+326
+1% +$22.5K 0.01% 608
2022
Q2 		$2.1M Sell
32,952
-816
-2% -$57.3K 0.01% 627
2022
Q1 		$2.61M Sell
33,768
-967
-3% -$74.7K 0.01% 627
2021
Q4 		$2.96M Sell
34,735
-2,251
-6% -$189K 0.01% 623
2021
Q3 		$2.93M Sell
36,986
-5,683
-13% -$461K 0.01% 599
2021
Q2 		$3.45M Sell
42,669
-6,908
-14% -$554K 0.01% 552
2021
Q1 		$3.88M Sell
49,577
-69,901
-59% -$5.38M 0.01% 511
2020
Q4 		$8.63M Buy
119,478
+15,262
+15% +$1.02M 0.03% 333
2020
Q3 		$6.23M Buy
104,216
+1,660
+2% +$98.8K 0.03% 350
2020
Q2 		$5.74M Sell
102,556
-2,220
-2% -$115K 0.03% 353
2020
Q1 		$4.67M Buy
104,776
+952
+0.9% +$52.4K 0.03% 349
2019
Q4 		$6.18M Buy
103,824
+1,144
+1% +$65.6K 0.03% 351
2019
Q3 		$5.75M Buy
102,680
+1,900
+2% +$107K 0.03% 350
2019
Q2 		$5.7M Buy
100,780
+10,216
+11% +$567K 0.03% 352
2019
Q1 		$4.96M Buy
90,564
+12,936
+17% +$683K 0.03% 370
2018
Q4 		$3.71M Buy
77,628
+2,288
+3% +$120K 0.03% 388
2018
Q3 		$4.39M Buy
75,340
+8,508
+13% +$494K 0.03% 396
2018
Q2 		$3.76M Buy
66,832
+1,756
+3% +$98.1K 0.03% 415
2018
Q1 		$3.55M Sell
65,076
-1,324
-2% -$73.2K 0.03% 428
2017
Q4 		$3.58M Sell
66,400
-16,944
-20% -$893K 0.02% 434
2017
Q3 		$4.22M Buy
83,344
+64
+0.1% +$3.15K 0.03% 378
2017
Q2 		$4.09M Buy
83,280
+6,324
+8% +$308K 0.03% 390
2017
Q1 		$3.68M Buy
76,956
+11,420
+17% +$539K 0.03% 385
2016
Q4 		$2.98M Buy
65,536
+2,904
+5% +$128K 0.03% 405
2016
Q3 		$2.74M Buy
62,632
+28,140
+82% +$1.24M 0.02% 426
2016
Q2 		$1.46M Buy
34,492
+424
+1% +$17.6K 0.01% 529
2016
Q1 		$1.38M Buy
34,068
+14,580
+75% +$557K 0.01% 535
2015
Q4 		$784K Sell
19,488
-400
-2% -$16.4K 0.01% 686
2015
Q3 		$780K Sell
19,888
-644
-3% -$26.9K 0.01% 828
2015
Q2 		$870K Sell
20,532
-1,680
-8% -$72K ﹤0.01% 1615
2015
Q1 		$952K Sell
22,212
-3,732
-14% -$154K ﹤0.01% 1562
2014
Q4 		$1.03M Sell
25,944
-1,812
-7% -$70.3K ﹤0.01% 1494
2014
Q3 		$1.05M Buy
27,756
+440
+2% +$17.1K ﹤0.01% 1452
2014
Q2 		$1.07M Hold
27,316
– – ﹤0.01% 1433
2014
Q1 		$1.04M Sell
27,316
-400
-1% -$15.1K ﹤0.01% 1411
2013
Q4 		$1.04M Buy
27,716
+2,400
+9% +$86.6K ﹤0.01% 1379
2013
Q3 		$880K Sell
25,316
-160
-0.6% -$5.44K ﹤0.01% 1368
2013
Q2 		$820K Buy
+25,476
New +$827K ﹤0.01% 1345

Other funds holding IJK

Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $617B AUM 30.33% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Envestnet Asset Management
Envestnet Asset Management Chicago, Illinois $424B AUM 22.96% 1-Year Est. Return
PNC Financial Services Group
PNC Financial Services Group Pittsburgh, Pennsylvania $202B AUM 37.79% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
SP
Sherman Porfolios Coeur D'alene, Idaho $1.28B AUM 32% 1-Year Est. Return
PRS
Pinkerton Retirement Specialists Coeur D Alene, Idaho $1.16B AUM 28.78% 1-Year Est. Return

William Blair & Company's IJK Position: Q2 2026 in Review

William Blair & Company increased its iShares S&P Mid-Cap 400 Growth ETF (IJK) stake by 1.5% in Q2 2026, buying an estimated $55.2K and bringing the position to 32,847 shares worth $3.86M. The position accounts for 0.01% of the portfolio, ranked #589.

William Blair & Company first reported a position in IJK in Q2 2013 and has held it in 53 quarters since. The position peaked at $8.63M in Q4 2020. 990 funds tracked by Wall St. Rank hold IJK as of Q2 2026.

  • William Blair & Company held 32,847 shares of iShares S&P Mid-Cap 400 Growth ETF worth $3.86M as of Q2 2026.
  • William Blair & Company bought 497 iShares S&P Mid-Cap 400 Growth ETF shares in Q2 2026, an estimated $55.2K.
  • iShares S&P Mid-Cap 400 Growth ETF made up 0.01% of William Blair & Company's portfolio in Q2 2026, its #589 holding.
  • William Blair & Company first reported a position in iShares S&P Mid-Cap 400 Growth ETF in Q2 2013 and has held it in 53 quarters since.
  • William Blair & Company's iShares S&P Mid-Cap 400 Growth ETF position peaked at $8.63M in Q4 2020.
  • 990 funds tracked by Wall St. Rank held iShares S&P Mid-Cap 400 Growth ETF as of Q2 2026.

Based on William Blair & Company's 13F filing for Q2 2026, filed 11 Aug 2026.