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GAMCO INVESTORS, INC. ET AL

Position in MASI — Masimo Corp

CIK 807249 GREENWICH, CT

Position in MASI

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$16,364,040
+$5,569,060 QoQ
Shares Held
92,000
+10.8% QoQ
Ownership
0.176%
of shares outstanding
% of Portfolio
0.17%
of 13F equity value
Holder Rank
#85
of 445 holders
Holding Since
Mar 2020
25 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

GAMCO INVESTORS, INC. ET AL holds $112,021,521 across 20 Medical Devices names. MASI ranks #3 (14.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
3 MASI
Masimo Corp
This page
92,000 $16,364,040

All Filings in MASI

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $16,364,040 92,000
2025-12-31 $10,794,980 83,000
2025-09-30 $12,364,690 83,800
2025-06-30 $14,214,590 84,500
2025-03-31 $14,077,700 84,500
2024-12-31 $13,967,850 84,500
2024-09-30 $11,266,385 84,500
2024-06-30 $10,641,930 84,500
2024-03-31 $12,408,825 84,500
2023-12-31 $9,904,245 84,500
2023-09-30 $7,408,960 84,500
2023-06-30 $13,904,475 84,500
2023-03-31 $15,685,900 85,000
2022-12-31 $12,575,750 85,000
2022-09-30 $11,998,600 85,000
2022-06-30 $11,106,950 85,000
2022-03-31 $12,370,900 85,000
2021-12-31 $25,618,250 87,500
2021-09-30 $23,957,835 88,500
2021-06-30 $21,699,275 89,500
2021-03-31 $20,669,400 90,000
2020-12-31 $24,690,960 92,000
2020-09-30 $22,189,640 94,000
2020-06-30 $21,659,050 95,000
2020-03-31 $17,534,880 99,000