Position in MASI
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$94,873,723
+$79,106,420 QoQ
Shares Held
533,388
+340.0% QoQ
Ownership
1.02%
of shares outstanding
% of Portfolio
0.07%
of 13F equity value
Holder Rank
#17
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)
Derivatives in MASI
reported options exposure · as of Sep 30, 2024CallValue
$1,613,293
CallShares
12,100
PutValue
$6,346,508
PutShares
47,600
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, 2026CITIGROUP INC holds $1,237,248,942 across 100 Medical Devices names. MASI ranks #6 (7.7% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ABT |
Abbott Laboratories
|
2,165,231 | $222,304,264 | |
| 2 | PEN |
Penumbra Inc
|
620,943 | $203,899,052 | |
| 3 | SYK |
Stryker Corp
|
385,344 | $126,620,183 | |
| 4 | MDT |
Medtronic plc
|
1,337,911 | $115,929,987 | |
| 5 | BSX |
Boston Scientific Corp
|
1,576,640 | $98,934,159 | |
| 6 | MASI |
Masimo Corp
This page
|
533,388 | $94,873,723 | |
| 7 | EW |
Edwards Lifesciences Corp
|
789,574 | $63,229,084 | |
| 8 | DXCM |
Dexcom Inc
|
834,087 | $52,380,663 |
All Filings in MASI
Export CSV
27 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $94,873,723 | 533,388 | Shares | Defined | 2026-05-11 | |
| 2025-12-31 | $15,767,303 | 121,231 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $17,214,952 | 116,672 | Shares | Defined | 2025-11-10 | |
| 2025-06-30 | $8,404,606 | 49,962 | Shares | Defined | 2025-08-11 | |
| 2025-03-31 | $8,689,520 | 52,158 | Shares | Defined | 2025-05-12 | |
| 2024-12-31 | $15,156,520 | 91,691 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $1,613,293 | 12,100 | Call | Defined | 2024-11-12 | |
| 2024-09-30 | $6,346,508 | 47,600 | Put | Defined | 2024-11-12 | |
| 2024-09-30 | $8,278,191 | 62,088 | Shares | Defined | 2024-11-12 | |
| 2024-06-30 | $5,632,034 | 44,720 | Shares | Defined | 2024-08-12 | |
| 2024-03-31 | $8,212,291 | 55,923 | Shares | Defined | 2024-05-10 | |
| 2023-12-31 | $6,166,885 | 52,614 | Shares | Defined | 2024-02-09 | |
| 2023-09-30 | $4,698,155 | 53,583 | Shares | Defined | 2023-12-06 | |
| 2023-06-30 | $10,680,445 | 64,907 | Shares | Defined | 2023-08-10 | |
| 2023-03-31 | $22,354,620 | 121,137 | Shares | Defined | 2023-05-11 | |
| 2022-12-31 | $17,628,388 | 119,151 | Shares | Defined | 2023-02-09 | |
| 2022-09-30 | $88,062,804 | 623,851 | Shares | Defined | 2022-11-10 | |
| 2022-06-30 | $72,527,467 | 555,043 | Shares | Defined | 2022-08-10 | |
| 2022-03-31 | $80,328,619 | 551,935 | Shares | Defined | 2022-05-12 | |
| 2021-12-31 | $85,512,251 | 292,070 | Shares | Defined | 2022-02-10 | |
| 2021-09-30 | $79,314,780 | 292,988 | Shares | Defined | 2021-11-10 | |
| 2021-06-30 | $100,192,703 | 413,251 | Shares | Defined | 2021-08-10 | |
| 2021-03-31 | $71,758,872 | 312,457 | Shares | Defined | 2021-05-13 | |
| 2020-12-31 | $79,855,125 | 297,545 | Shares | Defined | 2021-02-11 | |
| 2020-09-30 | $66,603,382 | 282,146 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $83,792,706 | 367,528 | Shares | Defined | 2020-08-12 | |
| 2020-03-31 | $82,225,656 | 464,237 | Shares | Defined | 2020-05-12 | |
| No filing history on record for this holder in this stock. | ||||||