Position in MASI
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$20,863,617
-$13,606,965 QoQ
Shares Held
117,297
-55.7% QoQ
Ownership
0.224%
of shares outstanding
% of Portfolio
0.21%
of 13F equity value
Holder Rank
#76
of 445 holders
Holding Since
Mar 2020
18 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)
Derivatives in MASI
reported options exposure · as of Mar 31, 2026CallValue
$515,823
CallShares
2,900
PutValue
$0
PutShares
0
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Medical Devices
Healthcare · as of Mar 31, 2026Schonfeld Strategic Advisors LLC holds $205,253,916 across 27 Medical Devices names. MASI ranks #4 (10.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | BSX |
Boston Scientific Corp
|
1,105,515 | $69,371,066 | |
| 2 | SYK |
Stryker Corp
|
118,195 | $38,837,695 | |
| 3 | PODD |
Insulet Corp
|
164,058 | $34,425,930 | |
| 4 | MASI |
Masimo Corp
This page
|
117,297 | $20,863,617 | |
| 5 | IRTC |
iRhythm Holdings, Inc.
|
88,133 | $10,401,456 | |
| 6 | DXCM |
Dexcom Inc
|
152,930 | $9,604,004 | |
| 7 | ATEC |
Alphatec Holdings, Inc.
|
766,383 | $8,338,247 | |
| 8 | ESTA |
Establishment Labs Holdings Inc.
|
68,488 | $3,888,748 |
All Filings in MASI
Export CSV
19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $20,863,617 | 117,297 | Shares | Sole | 2026-05-15 | |
| 2026-03-31 | $515,823 | 2,900 | Call | Sole | 2026-05-15 | |
| 2025-12-31 | $34,470,582 | 265,036 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $1,605,934 | 10,884 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $2,395,284 | 14,239 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $1,710,982 | 10,270 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $657,894 | 3,980 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $1,172,104 | 8,791 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $1,469,719 | 11,670 | Shares | Sole | 2024-08-14 | |
| 2023-09-30 | $946,330 | 10,793 | Shares | Sole | 2023-11-14 | |
| 2023-03-31 | $696,084 | 3,772 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $605,115 | 4,090 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $962,570 | 6,819 | Shares | Sole | 2022-11-14 | |
| 2022-03-31 | $8,319,939 | 57,166 | Shares | Sole | 2022-05-16 | |
| 2021-06-30 | $838,392 | 3,458 | Shares | Sole | 2021-11-16 | |
| 2021-03-31 | $574,150 | 2,500 | Shares | Sole | 2021-05-17 | |
| 2020-09-30 | $1,718,516 | 7,280 | Shares | Sole | 2020-11-19 | |
| 2020-06-30 | $472,623 | 2,073 | Shares | Sole | 2020-09-15 | |
| 2020-03-31 | $1,139,235 | 6,432 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||