CIK: 0001316507 | NAPERVILLE, IL
| Quarter | Form Type | Holdings | Value | Filed | SEC |
|---|---|---|---|---|---|
| 13F-HR | 1023 | $33.5B | 2026-11-02 | SEC ↗ | |
| 13F-HR | 1059 | $30.1B | 2026-07-31 | SEC ↗ | |
| 13F-HR | 1269 | $28.2B | 2026-05-04 | SEC ↗ | |
| 13F-HR | 997 | $26.6B | 2026-01-29 | SEC ↗ | |
| 13F-HR | 1003 | $27.1B | 2025-10-20 | SEC ↗ | |
| 13F-HR | 991 | $25.4B | 2025-08-08 | SEC ↗ | |
| 13F-HR | 987 | $23.0B | 2025-04-29 | SEC ↗ | |
| 13F-HR | 1059 | $23.9B | 2025-01-24 | SEC ↗ | |
| 13F-HR | 1072 | $23.1B | 2024-11-07 | SEC ↗ | |
| 13F-HR | 1087 | $22.5B | 2024-07-25 | SEC ↗ | |
| 13F-HR | 1097 | $21.1B | 2024-05-08 | SEC ↗ | |
| 13F-HR | 1062 | $20.6B | 2024-01-31 | SEC ↗ | |
| 13F-HR | 1066 | $19.2B | 2023-10-26 | SEC ↗ | |
| 13F-HR | 1127 | $20.2B | 2023-07-28 | SEC ↗ | |
| 13F-HR | 1256 | $20.5B | 2023-05-04 | SEC ↗ | |
| 13F-HR | 1342 | $21.3B | 2023-01-26 | SEC ↗ | |
| 13F-HR | 1489 | $1.7B | 2022-10-24 | SEC ↗ | |
| 13F-HR | 1350 | $1.2B | 2022-08-01 | SEC ↗ | |
| 13F-HR | 1405 | $943.7M | 2022-05-03 | SEC ↗ | |
| 13F-HR | 1353 | $928.1M | 2022-02-01 | SEC ↗ | |
| 13F-HR | 1214 | $836.5M | 2021-10-26 | SEC ↗ | |
| 13F-HR | 1224 | $778.6M | 2021-07-22 | SEC ↗ | |
| 13F-HR | 1180 | $634.0M | 2021-04-12 | SEC ↗ | |
| 13F-HR | 990 | $541.6M | 2021-01-27 | SEC ↗ | |
| 13F-HR | 945 | $508.1M | 2020-10-26 | SEC ↗ | |
| 13F-HR | 960 | $481.2M | 2020-07-27 | SEC ↗ | |
| 13F-HR | 918 | $493.4M | 2020-04-28 | SEC ↗ | |
| 13F-HR | 1032 | $675.8M | 2020-01-15 | SEC ↗ | |
| 13F-HR | 993 | $478.7M | 2019-10-21 | SEC ↗ | |
| 13F-HR | 980 | $474.1M | 2019-08-07 | SEC ↗ | |
| 13F-HR | 653 | $414.6M | 2019-04-12 | SEC ↗ | |
| 13F-HR | 673 | $410.9M | 2019-01-24 | SEC ↗ | |
| 13F-HR | 686 | $466.2M | 2018-10-22 | SEC ↗ | |
| 13F-HR | 597 | $402.8M | 2018-07-17 | SEC ↗ | |
| 13F-HR | 602 | $403.1M | 2018-04-13 | SEC ↗ | |
| 13F-HR | 600 | $363.3M | 2018-02-13 | SEC ↗ | |
| 13F-HR | 620 | $270.6M | 2017-10-25 | SEC ↗ | |
| 13F-HR | 606 | $256.3M | 2017-08-09 | SEC ↗ | |
| 13F-HR | 615 | $260.0M | 2017-04-20 | SEC ↗ | |
| 13F-HR | 632 | $273.1M | 2017-02-06 | SEC ↗ | |
| 13F-HR | 599 | $308.8M | 2016-11-14 | SEC ↗ | |
| 13F-HR | 612 | $285.6M | 2016-07-26 | SEC ↗ | |
| 13F-HR | 622 | $396.7M | 2016-04-25 | SEC ↗ | |
| 13F-HR | 693 | $320.9M | 2016-02-05 | SEC ↗ | |
| 13F-HR | 730 | $282.6M | 2015-11-10 | SEC ↗ | |
| 13F-HR | 760 | $387.6M | 2015-08-14 | SEC ↗ | |
| 13F-HR | 759 | $414.3M | 2015-05-13 | SEC ↗ | |
| 13F-HR | 715 | $421.5M | 2015-02-13 | SEC ↗ | |
| 13F-HR | 684 | $394.7M | 2014-11-14 | SEC ↗ | |
| 13F-HR | 700 | $394.1M | 2014-08-14 | SEC ↗ | |
| 13F-HR | 678 | $271.5M | 2014-05-16 | SEC ↗ | |
| 13F-HR | 677 | $316.5M | 2014-02-14 | SEC ↗ | |
| 13F-HR | 642 | $337.7M | 2013-11-14 | SEC ↗ | |
| 13F-HR | 625 | $326.1M | 2013-08-12 | SEC ↗ |