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Grantham, Mayo, Van Otterloo & Co. LLC

Position in MASI — Masimo Corp

CIK 1352662 Boston, MA

Position in MASI

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$24,477,935
+$5,772,056 QoQ
Shares Held
137,617
-4.3% QoQ
Ownership
0.263%
of shares outstanding
% of Portfolio
0.06%
of 13F equity value
Holder Rank
#69
of 445 holders
Holding Since
Mar 2020
5 quarters on record
Voting authority Sole 100.ToString("F0")% Shared 0.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

Grantham, Mayo, Van Otterloo & Co. LLC holds $1,016,894,895 across 9 Medical Devices names. MASI ranks #4 (2.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
4 MASI
Masimo Corp
This page
137,617 $24,477,935

All Filings in MASI

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5 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $24,477,935 137,617
2025-12-31 $18,705,879 143,825
2025-09-30 $35,828,386 242,822
2025-06-30 $40,467,507 240,563
2020-03-31 $315,804 1,783