CIK: 0000854157 | MADISON, WI
| Quarter | Form Type | Holdings | Value | Filed | SEC |
|---|---|---|---|---|---|
| 13F-HR | 2529 | $49.6B | 2026-08-14 | SEC ↗ | |
| 13F-HR | 2491 | $43.7B | 2026-05-15 | SEC ↗ | |
| 13F-HR | 2365 | $44.7B | 2026-02-17 | SEC ↗ | |
| 13F-HR | 2366 | $43.6B | 2025-11-14 | SEC ↗ | |
| 13F-HR | 2313 | $41.0B | 2025-08-14 | SEC ↗ | |
| 13F-HR | 2241 | $38.7B | 2025-05-15 | SEC ↗ | |
| 13F-HR | 2263 | $39.2B | 2025-02-14 | SEC ↗ | |
| 13F-HR | 2282 | $39.8B | 2024-11-14 | SEC ↗ | |
| 13F-HR | 2299 | $37.8B | 2024-08-14 | SEC ↗ | |
| 13F-HR | 2216 | $37.9B | 2024-05-14 | SEC ↗ | |
| 13F-HR | 2356 | $35.4B | 2024-02-12 | SEC ↗ | |
| 13F-HR | 2506 | $32.0B | 2023-11-14 | SEC ↗ | |
| 13F-HR | 2333 | $35.6B | 2023-08-14 | SEC ↗ | |
| 13F-HR | 2542 | $33.6B | 2023-05-15 | SEC ↗ | |
| 13F-HR | 2496 | $31.0B | 2023-02-14 | SEC ↗ | |
| 13F-HR | 2684 | $3.7B | 2022-11-14 | SEC ↗ | |
| 13F-HR | 2790 | $3.5B | 2022-08-15 | SEC ↗ | |
| 13F-HR | 2273 | $3.4B | 2022-05-13 | SEC ↗ | |
| 13F-HR | 2147 | $3.6B | 2022-02-11 | SEC ↗ | |
| 13F-HR | 2116 | $3.4B | 2021-11-12 | SEC ↗ | |
| 13F-HR | 2060 | $3.4B | 2021-08-12 | SEC ↗ | |
| 13F-HR | 2019 | $3.1B | 2021-05-17 | SEC ↗ | |
| 13F-HR | 1981 | $2.8B | 2021-02-03 | SEC ↗ | |
| 13F-HR | 1945 | $2.6B | 2020-11-16 | SEC ↗ | |
| 13F-HR | 1709 | $2.0B | 2020-08-12 | SEC ↗ | |
| 13F-HR | 1694 | $1.7B | 2020-05-06 | SEC ↗ | |
| 13F-HR | 1616 | $2.3B | 2020-02-14 | SEC ↗ | |
| 13F-HR | 1539 | $1.9B | 2019-11-12 | SEC ↗ | |
| 13F-HR | 1532 | $1.9B | 2019-08-14 | SEC ↗ | |
| 13F-HR | 1537 | $1.8B | 2019-05-13 | SEC ↗ | |
| 13F-HR | 1541 | $1.5B | 2019-02-11 | SEC ↗ | |
| 13F-HR | 1539 | $1.7B | 2018-11-14 | SEC ↗ | |
| 13F-HR | 1469 | $1.6B | 2018-08-03 | SEC ↗ | |
| 13F-HR | 1456 | $1.6B | 2018-05-07 | SEC ↗ | |
| 13F-HR | 1447 | $1.5B | 2018-02-08 | SEC ↗ | |
| 13F-HR | 1455 | $1.4B | 2017-11-01 | SEC ↗ | |
| 13F-HR | 1459 | $1.3B | 2017-08-03 | SEC ↗ | |
| 13F-HR | 1284 | $1.1B | 2017-05-08 | SEC ↗ | |
| 13F-HR | 1285 | $906.4M | 2017-02-13 | SEC ↗ | |
| 13F-HR | 1315 | $975.3M | 2016-10-31 | SEC ↗ | |
| 13F-HR | 1307 | $930.9M | 2016-08-11 | SEC ↗ | |
| 13F-HR | 1311 | $894.9M | 2016-05-04 | SEC ↗ | |
| 13F-HR | 1310 | $915.0M | 2016-02-08 | SEC ↗ | |
| 13F-HR | 1328 | $940.8M | 2015-11-06 | SEC ↗ | |
| 13F-HR | 1345 | $1.0B | 2015-08-11 | SEC ↗ | |
| 13F-HR | 1328 | $1.0B | 2015-05-11 | SEC ↗ | |
| 13F-HR | 1325 | $1.0B | 2015-02-13 | SEC ↗ | |
| 13F-HR | 1331 | $887.6M | 2014-11-12 | SEC ↗ | |
| 13F-HR | 1340 | $946.3M | 2014-08-12 | SEC ↗ | |
| 13F-HR | 1336 | $892.0M | 2014-05-14 | SEC ↗ | |
| 13F-HR | 1322 | $813.0M | 2014-02-12 | SEC ↗ | |
| 13F-HR | 1307 | $787.8M | 2013-11-13 | SEC ↗ | |
| 13F-HR | 1310 | $794.0M | 2013-08-09 | SEC ↗ |