Position in MASI
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$24,622,187
New position
Shares Held
138,428
first reported quarter
Ownership
0.264%
of shares outstanding
% of Portfolio
1.32%
of 13F equity value
Holder Rank
#68
of 445 holders
Holding Since
Mar 2026
1 quarter on record
Voting authority
Sole 9.555147802467708.ToString("F0")%
Shared 90.44485219753228.ToString("F0")%
None 0.ToString("F0")%
Position in Medical Devices
Healthcare · as of Mar 31, 2026Westchester Capital Management, LLC holds $49,785,178 across 2 Medical Devices names. MASI ranks #2 (49.5% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PEN |
Penumbra Inc
|
76,630 | $25,162,991 | |
| 2 | MASI |
Masimo Corp
This page
|
138,428 | $24,622,187 |
All Filings in MASI
Export CSV
1 filing row on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $24,622,187 | 138,428 | Shares | Other | 2026-05-15 | |
| No filing history on record for this holder in this stock. | ||||||