Skip to main content

AMERICAN CENTURY COMPANIES INC

Position in MASI — Masimo Corp

CIK 748054 KANSAS CITY, MO

Position in MASI

as of Mar 31, 2026 · filed May 15, 2026
Position Value
$33,452,544
+$10,203,279 QoQ
Shares Held
188,073
+5.2% QoQ
Ownership
0.359%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#56
of 445 holders
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 87.7388035496855.ToString("F0")% Shared 12.261196450314506.ToString("F0")% None 0.ToString("F0")%

Common Shares in MASI Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Mar 31, 2026

AMERICAN CENTURY COMPANIES INC holds $2,638,840,015 across 56 Medical Devices names. MASI ranks #14 (1.3% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in MASI

Export CSV
24 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $33,452,544 188,073
2025-12-31 $23,249,265 178,758
2025-09-30 $24,838,714 168,341
2025-06-30 $25,607,794 152,228
2025-03-31 $13,190,721 79,176
2024-12-31 $2,092,532 12,659
2024-09-30 $1,504,629 11,285
2024-06-30 $1,343,905 10,671
2024-03-31 $1,321,650 9,000
2023-12-31 $654,969 5,588
2023-06-30 $839,534 5,102
2023-03-31 $914,949 4,958
2022-12-31 $730,725 4,939
2022-09-30 $522,150 3,699
2022-06-30 $344,968 2,640
2022-03-31 $1,280,606 8,799
2021-12-31 $2,519,371 8,605
2021-09-30 $2,150,790 7,945
2021-06-30 $1,767,945 7,292
2021-03-31 $1,542,166 6,715
2020-12-31 $8,068,039 30,062
2020-09-30 $102,578,692 434,545
2020-06-30 $93,308,327 409,265
2020-03-31 $89,019,803 502,596