Position in MASI
as of Mar 31, 2026
· filed May 13, 2026
Position Value
$58,817,873
+$46,321,369 QoQ
Shares Held
330,679
+132.0% QoQ
Ownership
0.631%
of shares outstanding
% of Portfolio
0.41%
of 13F equity value
Holder Rank
#33
of 445 holders
Holding Since
Sep 2023
2 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, 2026Hudson Bay Capital Management LP holds $430,330,614 across 19 Medical Devices names. MASI ranks #4 (13.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PEN |
Penumbra Inc
|
349,038 | $114,613,607 | |
| 2 | ITGR |
Integer Holdings Corp
|
1,000,000 | $88,000,000 | |
| 3 | NEOG |
Neogen Corp
|
6,500,180 | $60,386,672 | |
| 4 | MASI |
Masimo Corp
This page
|
330,679 | $58,817,873 | |
| 5 | EW |
Edwards Lifesciences Corp
|
532,100 | $42,610,568 | |
| 6 | BSX |
Boston Scientific Corp
|
484,000 | $30,371,000 | |
| 7 | PODD |
Insulet Corp
|
110,000 | $23,082,400 | |
| 8 | ABT |
Abbott Laboratories
|
75,000 | $7,700,250 |
All Filings in MASI
Export CSV
2 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $58,817,873 | 330,679 | Shares | Sole | 2026-05-13 | |
| 2023-09-30 | $12,496,504 | 142,524 | Shares | Sole | 2023-12-07 | |
| No filing history on record for this holder in this stock. | ||||||