Latest Period
Q1 2026
Security Snapshot
ISHARES TR - RUS 1000 GRW ETF (IWF) Institutional Ownership
CUSIP: 464287614
13F Institutional Holders and Ownership History from Q1 2014 to Q1 2026
Institutions Reporting
2,369
Shares (Excl. Options)
195,443,388
Price
$426.40
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- Type / Class
- Equity / RUS 1000 GRW ETF
- Symbol
- IWF
- Price per share
- $118.80
- All holders as of 31 Mar 2026
- Q1 2026
- Total 13F shares
- 195,443,388
- Total reported value
- $83,192,364,617
- % of total 13F portfolios
- 0.19%
- Share change
- -2,153,317
- Value change
- -$1,002,768,271
- Number of holders
- 2,369
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors
Key facts
- IWF - ISHARES TR - RUS 1000 GRW ETF is tracked under CUSIP 464287614.
- 2369 institutions reported positions in Q1 2026.
- Schedule 13D/13G significant owner rows are not currently available.
Change
- Holder count moved from 2,504 to 2,369 between Q4 2025 and Q1 2026.
- Reported value moved from $94,381,963,788 to $83,192,364,617.
Research use
- You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
- 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.
Evidence
Source: SEC Form 13F
Open SEC Evidence
Latest holder context comes from 2369 institutions filings for Q1 2026.
Security key
464287614
Latest holder period
Q1 2026
13F holders
2,369
13D/G owners
0
CIK / CUSIP context first
Broader feeds
Recent Quarterly Holder Reports
Open recent reporting periods for CUSIP 464287614:
As of 31 Mar 2026, 2,369 institutional investors reported holding 195,443,388 shares of ISHARES TR - RUS 1000 GRW ETF (IWF).
Institutional Holders of ISHARES TR - RUS 1000 GRW ETF (IWF) across Reporting Periods
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2026 Q1 | 195,443,388 | $83,192,364,617 | -$1,002,768,271 | $426.40 | 2,369 |
| 2025 Q4 | 199,491,052 | $94,381,963,788 | +$1,414,118,990 | $473.30 | 2,504 |
| 2025 Q3 | 194,388,972 | $91,002,609,589 | -$744,097,369 | $468.41 | 2,335 |
| 2025 Q2 | 196,973,149 | $83,611,785,787 | -$1,682,602,052 | $424.58 | 2,272 |
| 2025 Q1 | 201,713,555 | $72,812,690,655 | +$767,933,124 | $361.09 | 2,194 |
| 2024 Q4 | 200,261,893 | $80,427,413,893 | +$755,720,983 | $401.58 | 2,290 |
| 2024 Q3 | 196,631,200 | $73,798,644,012 | -$1,329,690,760 | $375.38 | 2,060 |
| 2024 Q2 | 201,080,239 | $73,294,435,951 | +$728,909,744 | $364.51 | 2,017 |
| 2024 Q1 | 200,290,478 | $67,498,401,827 | -$773,310,745 | $337.05 | 1,950 |
| 2023 Q4 | 203,240,225 | $61,616,103,417 | +$2,263,017,693 | $303.17 | 1,944 |
| 2023 Q3 | 194,453,623 | $51,681,469,962 | +$453,337,215 | $265.99 | 1,765 |
| 2023 Q2 | 192,738,022 | $53,021,993,684 | -$297,631,468 | $275.18 | 1,758 |
| 2023 Q1 | 192,235,271 | $46,943,908,521 | -$3,758,047,114 | $244.33 | 1,682 |
| 2022 Q4 | 208,721,063 | $44,705,470,497 | +$2,457,595,436 | $214.24 | 1,682 |
| 2022 Q3 | 196,841,550 | $41,428,832,960 | +$296,758,853 | $210.40 | 1,566 |
| 2022 Q2 | 195,718,210 | $42,808,568,115 | +$875,747,723 | $218.70 | 1,578 |
| 2022 Q1 | 191,717,831 | $53,204,703,352 | -$539,324,284 | $277.63 | 1,648 |
| 2021 Q4 | 194,002,939 | $59,237,805,624 | -$161,637,594 | $305.59 | 1,735 |
| 2021 Q3 | 193,278,007 | $52,997,550,657 | +$1,573,006,542 | $274.04 | 1,516 |
| 2021 Q2 | 187,554,618 | $50,925,140,011 | -$1,649,821,433 | $271.48 | 1,508 |
| 2021 Q1 | 193,987,462 | $47,164,438,388 | -$1,187,229,417 | $243.04 | 1,468 |
| 2020 Q4 | 199,137,797 | $48,021,258,109 | -$160,302,408 | $241.14 | 1,477 |
| 2020 Q3 | 200,041,471 | $43,372,597,333 | -$2,430,871,840 | $216.89 | 1,317 |
| 2020 Q2 | 210,536,355 | $40,431,059,288 | -$173,256,656 | $191.95 | 1,285 |
| 2020 Q1 | 212,599,597 | $32,036,359,007 | +$2,749,673,074 | $150.65 | 1,215 |
| 2019 Q4 | 194,203,529 | $34,174,963,130 | +$213,019,133 | $175.92 | 1,276 |
| 2019 Q3 | 194,337,756 | $31,026,013,459 | -$682,017,866 | $159.63 | 1,107 |
| 2019 Q2 | 197,815,653 | $31,127,819,019 | +$1,595,460,086 | $157.34 | 1,109 |
| 2019 Q1 | 187,847,571 | $28,434,877,483 | -$1,944,650,457 | $151.36 | 1,078 |
| 2018 Q4 | 200,404,796 | $26,241,071,703 | +$1,708,373,212 | $130.91 | 1,057 |
| 2018 Q3 | 184,311,968 | $28,750,278,121 | -$15,702,418 | $155.98 | 993 |
| 2018 Q2 | 183,937,265 | $26,447,466,790 | -$945,490,549 | $143.80 | 961 |
| 2018 Q1 | 191,314,292 | $26,033,177,391 | -$295,468,769 | $136.09 | 949 |
| 2017 Q4 | 193,176,571 | $26,025,832,918 | +$68,911,197 | $134.68 | 952 |
| 2017 Q3 | 191,153,084 | $23,904,415,220 | +$1,422,276,439 | $125.06 | 821 |
| 2017 Q2 | 179,688,472 | $21,387,716,892 | -$104,166,704 | $119.02 | 801 |
| 2017 Q1 | 180,184,827 | $20,500,158,739 | -$667,444,964 | $113.80 | 782 |
| 2016 Q4 | 189,354,137 | $19,869,285,186 | +$1,174,558,149 | $104.90 | 762 |
| 2016 Q3 | 176,478,926 | $18,380,064,035 | -$650,146,673 | $104.17 | 686 |
| 2016 Q2 | 184,317,199 | $18,471,343,019 | -$417,987,400 | $100.36 | 665 |
| 2016 Q1 | 187,621,473 | $18,718,012,257 | -$1,321,383,702 | $99.78 | 663 |
| 2015 Q4 | 200,983,183 | $19,983,807,896 | +$1,764,118,553 | $99.48 | 679 |
| 2015 Q3 | 182,735,649 | $17,008,396,457 | +$806,940,324 | $93.00 | 611 |
| 2015 Q2 | 181,777,497 | $17,999,122,451 | +$30,391,436 | $99.01 | 589 |
| 2015 Q1 | 181,409,612 | $17,945,166,966 | +$812,687,639 | $98.92 | 595 |
| 2014 Q4 | 170,117,790 | $16,265,464,427 | +$786,565,390 | $95.61 | 583 |
| 2014 Q3 | 160,144,055 | $14,671,406,759 | +$647,876,401 | $91.63 | 505 |
| 2014 Q2 | 155,644,526 | $14,152,267,159 | +$207,056,293 | $90.93 | 505 |
| 2014 Q1 | 153,190,637 | $13,258,213,513 | +$166,459,325 | $86.54 | 488 |