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RHUMBLINE ADVISERS

Position in MASI — Masimo Corp

CIK 1115418 BOSTON, MA

Position in MASI

as of Mar 31, 2026 · filed May 12, 2026
Position Value
$23,055,331
+$6,855,578 QoQ
Shares Held
129,619
+4.1% QoQ
Ownership
0.248%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#72
of 445 holders
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 52.21148134147.ToString("F0")% Shared 0.ToString("F0")% None 47.78851865853.ToString("F0")%

Common Shares in MASI Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Mar 31, 2026

RHUMBLINE ADVISERS holds $1,402,735,885 across 83 Medical Devices names. MASI ranks #13 (1.6% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in MASI

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $23,055,331 129,619
2025-12-31 $16,199,753 124,556
2025-09-30 $18,681,010 126,608
2025-06-30 $21,447,377 127,496
2025-03-31 $20,460,312 122,811
2024-12-31 $20,558,856 124,373
2024-09-30 $16,934,776 127,014
2024-06-30 $16,091,731 127,773
2024-03-31 $19,550,434 133,132
2023-12-31 $16,169,236 137,951
2023-09-30 $12,496,942 142,529
2023-06-30 $26,160,817 158,984
2023-03-31 $27,562,340 149,357
2022-12-31 $21,747,318 146,991
2022-09-30 $19,873,210 140,785
2022-06-30 $18,788,124 143,783
2022-03-31 $19,790,674 135,981
2021-12-31 $39,555,163 135,102
2021-09-30 $35,903,184 132,626
2021-06-30 $32,741,175 135,043
2021-03-31 $30,741,828 133,858
2020-12-31 $36,970,418 137,754
2020-09-30 $33,332,380 141,203
2020-06-30 $33,147,466 145,390
2020-03-31 $23,141,259 130,653