William Blair & Company’s iShares Russell 2000 ETF IWM Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $156M | Buy |
628,228
+69,490
| +12% | +$17.9M | 0.45% | 51 |
|
|
2025
Q4 | $138M | Buy |
558,738
+58,277
| +12% | +$14.3M | 0.37% | 61 |
|
|
2025
Q3 | $121M | Buy |
500,461
+6,881
| +1% | +$1.58M | 0.32% | 75 |
|
|
2025
Q2 | $107M | Sell |
493,580
-24,873
| -5% | -$5.01M | 0.3% | 81 |
|
|
2025
Q1 | $103M | Sell |
518,453
-11,355
| -2% | -$2.46M | 0.31% | 84 |
|
|
2024
Q4 | $117M | Buy |
529,808
+35,522
| +7% | +$8.1M | 0.34% | 71 |
|
|
2024
Q3 | $109M | Buy |
494,286
+46,881
| +10% | +$10M | 0.32% | 77 |
|
|
2024
Q2 | $90.8M | Buy |
447,405
+12,066
| +3% | +$2.44M | 0.28% | 86 |
|
|
2024
Q1 | $91.6M | Buy |
435,339
+19,661
| +5% | +$3.92M | 0.29% | 86 |
|
|
2023
Q4 | $83.4M | Buy |
415,678
+47,531
| +13% | +$8.52M | 0.28% | 84 |
|
|
2023
Q3 | $65.1M | Buy |
368,147
+30,429
| +9% | +$5.71M | 0.25% | 97 |
|
|
2023
Q2 | $63.2M | Buy |
337,718
+35,057
| +12% | +$6.25M | 0.23% | 98 |
|
|
2023
Q1 | $54M | Buy |
302,661
+25,557
| +9% | +$4.71M | 0.22% | 107 |
|
|
2022
Q4 | $48.3M | Buy |
277,104
+6,528
| +2% | +$1.16M | 0.21% | 108 |
|
|
2022
Q3 | $44.6M | Buy |
270,576
+1,031
| +0.4% | +$188K | 0.2% | 108 |
|
|
2022
Q2 | $45.6M | Sell |
269,545
-23,808
| -8% | -$4.39M | 0.2% | 112 |
|
|
2022
Q1 | $60.2M | Sell |
293,353
-3,572
| -1% | -$729K | 0.21% | 110 |
|
|
2021
Q4 | $66.1M | Buy |
296,925
+73,808
| +33% | +$16.7M | 0.21% | 112 |
|
|
2021
Q3 | $48.8M | Buy |
223,117
+1,281
| +0.6% | +$284K | 0.17% | 135 |
|
|
2021
Q2 | $50.9M | Buy |
221,836
+7,649
| +4% | +$1.72M | 0.18% | 127 |
|
|
2021
Q1 | $47.3M | Sell |
214,187
-5,887
| -3% | -$1.29M | 0.18% | 130 |
|
|
2020
Q4 | $43.1M | Buy |
220,074
+12,569
| +6% | +$2.2M | 0.16% | 134 |
|
|
2020
Q3 | $31.1M | Buy |
207,505
+37,278
| +22% | +$5.61M | 0.13% | 150 |
|
|
2020
Q2 | $24.4M | Buy |
170,227
+20,239
| +13% | +$2.66M | 0.12% | 159 |
|
|
2020
Q1 | $17.2M | Sell |
149,988
-44,902
| -23% | -$6.69M | 0.11% | 171 |
|
|
2019
Q4 | $32.3M | Buy |
194,890
+8,000
| +4% | +$1.26M | 0.17% | 135 |
|
|
2019
Q3 | $28.3M | Buy |
186,890
+1,984
| +1% | +$303K | 0.16% | 134 |
|
|
2019
Q2 | $28.8M | Buy |
184,906
+3,812
| +2% | +$588K | 0.16% | 132 |
|
|
2019
Q1 | $27.7M | Buy |
181,094
+11,249
| +7% | +$1.69M | 0.17% | 128 |
|
|
2018
Q4 | $22.7M | Buy |
169,845
+7,311
| +4% | +$1.09M | 0.17% | 132 |
|
|
2018
Q3 | $27.4M | Buy |
162,534
+7,426
| +5% | +$1.25M | 0.17% | 137 |
|
|
2018
Q2 | $25.4M | Buy |
155,108
+16,334
| +12% | +$2.61M | 0.17% | 128 |
|
|
2018
Q1 | $21.1M | Sell |
138,774
-2,542
| -2% | -$393K | 0.15% | 143 |
|
|
2017
Q4 | $21.5M | Buy |
141,316
+1,797
| +1% | +$270K | 0.15% | 149 |
|
|
2017
Q3 | $20.7M | Buy |
139,519
+5,880
| +4% | +$827K | 0.16% | 148 |
|
|
2017
Q2 | $18.8M | Sell |
133,639
-3,495
| -3% | -$484K | 0.14% | 164 |
|
|
2017
Q1 | $18.9M | Buy |
137,134
+8,910
| +7% | +$1.22M | 0.15% | 154 |
|
|
2016
Q4 | $17.3M | Buy |
128,224
+16,630
| +15% | +$2.13M | 0.15% | 160 |
|
|
2016
Q3 | $13.9M | Sell |
111,594
-65
| -0.1% | -$7.9K | 0.12% | 188 |
|
|
2016
Q2 | $12.8M | Buy |
111,659
+16,308
| +17% | +$1.84M | 0.12% | 186 |
|
|
2016
Q1 | $10.5M | Buy |
95,351
+4,151
| +5% | +$430K | 0.1% | 191 |
|
|
2015
Q4 | $10.3M | Buy |
91,200
+23,053
| +34% | +$2.66M | 0.1% | 202 |
|
|
2015
Q3 | $7.44M | Sell |
68,147
-39,616
| -37% | -$4.7M | 0.06% | 261 |
|
|
2015
Q2 | $13.5M | Buy |
107,763
+576
| +0.5% | +$72K | 0.02% | 792 |
|
|
2015
Q1 | $13.3M | Sell |
107,187
-3,104
| -3% | -$374K | 0.02% | 763 |
|
|
2014
Q4 | $13.2M | Buy |
110,291
+4,687
| +4% | +$536K | 0.02% | 751 |
|
|
2014
Q3 | $11.5M | Sell |
105,604
-336
| -0.3% | -$38.4K | 0.02% | 788 |
|
|
2014
Q2 | $12.6M | Buy |
105,940
+1,771
| +2% | +$201K | 0.02% | 778 |
|
|
2014
Q1 | $12.1M | Sell |
104,169
-13,936
| -12% | -$1.61M | 0.02% | 761 |
|
|
2013
Q4 | $13.6M | Buy |
118,105
+27,019
| +30% | +$2.98M | 0.02% | 687 |
|
|
2013
Q3 | $9.71M | Sell |
91,086
-6,131
| -6% | -$634K | 0.02% | 751 |
|
|
2013
Q2 | $9.43M | Buy |
+97,217
| New | +$9.28M | 0.02% | 744 |
|
Other funds holding IWM
William Blair & Company's IWM Position: Q1 2026 in Review
William Blair & Company increased its iShares Russell 2000 ETF (IWM) stake by 12% in Q1 2026, buying an estimated $17.9M and bringing the position to 628,228 shares worth $156M. The position accounts for 0.45% of the portfolio, ranked #51.
William Blair & Company first reported a position in IWM in Q2 2013 and has held it in 52 quarters since. 2,568 funds tracked by Wall St. Rank hold IWM as of Q1 2026.
- William Blair & Company held 628,228 shares of iShares Russell 2000 ETF worth $156M as of Q1 2026.
- William Blair & Company bought 69,490 iShares Russell 2000 ETF shares in Q1 2026, an estimated $17.9M.
- iShares Russell 2000 ETF made up 0.45% of William Blair & Company's portfolio in Q1 2026, its #51 holding.
- William Blair & Company first reported a position in iShares Russell 2000 ETF in Q2 2013 and has held it in 52 quarters since.
- 2,568 funds tracked by Wall St. Rank held iShares Russell 2000 ETF as of Q1 2026.
Based on William Blair & Company's 13F filing for Q1 2026, filed 8 May 2026.