AMERICAN CENTURY COMPANIES INC
Position in MPWR — Monolithic Power Systems, Inc.
CIK 748054
KANSAS CITY, MO
Position in MPWR
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$203,499,980
-$14,825,614 QoQ
Shares Held
147,212
-26.3% QoQ
Ownership
0.300%
of shares outstanding
% of Portfolio
0.09%
of 13F equity value
Holder Rank
#48
of 1,244 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority
Sole 89%
Shared 11%
None 0%
Common Shares in MPWR Over Time
Shares Held
Position Value (USD)
Position in Semiconductors
Technology · as of Jun 30, 2026AMERICAN CENTURY COMPANIES INC holds $25,492,382,782 across 47 Semiconductors names. MPWR ranks #11 (0.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | NVDA |
Nvidia Corp
|
60,626,286 | $12,130,713,565 | |
| 2 | TSM |
Taiwan Semiconductor Manufacturing Co Ltd
|
6,223,473 | $2,972,144,000 | |
| 3 | AVGO |
Broadcom Inc.
|
7,847,715 | $2,964,474,341 | |
| 4 | MU |
Micron Technology Inc
|
2,121,016 | $2,448,267,558 | |
| 5 | AMD |
Advanced Micro Devices Inc
|
1,869,689 | $1,086,121,036 | |
| 6 | ADI |
Analog Devices Inc
|
1,405,705 | $558,303,854 | |
| 7 | QCOM |
Qualcomm Inc/De
|
2,592,725 | $479,109,652 | |
| 8 | TXN |
Texas Instruments Inc
|
1,113,857 | $332,007,355 |
All Filings in MPWR
Export CSV
26 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $203,499,980 | 147,212 | Shares | Defined | 2026-08-12 | |
| 2026-03-31 | $218,325,594 | 199,685 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $184,502,267 | 203,564 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $197,891,568 | 214,950 | Shares | Defined | 2025-11-12 | |
| 2025-06-30 | $133,057,037 | 181,926 | Shares | Defined | 2025-08-12 | |
| 2025-03-31 | $117,836,856 | 203,174 | Shares | Defined | 2025-05-13 | |
| 2024-12-31 | $115,773,797 | 195,663 | Shares | Defined | 2025-02-11 | |
| 2024-09-30 | $208,526,522 | 225,556 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $193,512,213 | 235,508 | Shares | Defined | 2024-08-07 | |
| 2024-03-31 | $158,682,925 | 234,246 | Shares | Defined | 2024-05-14 | |
| 2023-12-31 | $176,378,072 | 279,619 | Shares | Defined | 2024-02-13 | |
| 2023-09-30 | $125,680,632 | 272,036 | Shares | Defined | 2023-11-13 | |
| 2023-06-30 | $146,274,295 | 270,763 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $141,767,443 | 283,229 | Shares | Defined | 2023-05-11 | |
| 2022-12-31 | $113,180,659 | 320,072 | Shares | Defined | 2023-02-13 | |
| 2022-09-30 | $150,681,629 | 414,644 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $179,022,550 | 466,156 | Shares | Defined | 2022-08-12 | |
| 2022-03-31 | $190,799,388 | 392,850 | Shares | Defined | 2022-05-11 | |
| 2021-12-31 | $181,863,637 | 368,645 | Shares | Defined | 2022-02-07 | |
| 2021-09-30 | $62,061,335 | 128,046 | Shares | Defined | 2021-11-10 | |
| 2021-06-30 | $31,813,085 | 85,187 | Shares | Defined | 2021-08-05 | |
| 2021-03-31 | $6,220,381 | 17,611 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $7,417,988 | 20,255 | Shares | Defined | 2021-02-12 | |
| 2020-09-30 | $10,698,717 | 38,263 | Shares | Defined | 2020-11-13 | |
| 2020-06-30 | $7,917,696 | 33,408 | Shares | Defined | 2020-08-13 | |
| 2020-03-31 | $9,948,966 | 59,411 | Shares | Defined | 2020-05-14 | |
| No filing history on record for this holder in this stock. | ||||||