CHARLES SCHWAB INVESTMENT MANAGEMENT INC
Position in MASI — Masimo Corp
CIK 884546
SAN FRANCISCO, CA
Position in MASI
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$68,817,547
+$21,749,354 QoQ
Shares Held
386,898
+6.9% QoQ
Ownership
0.739%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#29
of 445 holders
Holding Since
Mar 2020
25 quarters on record
Voting authority
Sole 99.99974153394434.ToString("F0")%
Shared 0.ToString("F0")%
None 0.0002584660556529111.ToString("F0")%
Common Shares in MASI Over Time
Shares Held
Position Value (USD)
Position in Medical Devices
Healthcare · as of Mar 31, 2026CHARLES SCHWAB INVESTMENT MANAGEMENT INC holds $8,744,665,777 across 86 Medical Devices names. MASI ranks #14 (0.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ABT |
Abbott Laboratories
|
45,500,055 | $4,671,490,646 | |
| 2 | MDT |
Medtronic plc
|
8,607,355 | $745,827,310 | |
| 3 | SYK |
Stryker Corp
|
2,120,239 | $696,689,333 | |
| 4 | BSX |
Boston Scientific Corp
|
9,170,180 | $575,428,795 | |
| 5 | EW |
Edwards Lifesciences Corp
|
3,557,088 | $284,851,607 | |
| 6 | GEHC |
GE HealthCare Technologies Inc.
|
3,157,026 | $224,717,110 | |
| 7 | DXCM |
Dexcom Inc
|
3,175,299 | $199,408,777 | |
| 8 | STE |
STERIS plc
|
656,428 | $145,155,923 |
All Filings in MASI
Export CSV
25 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $68,817,547 | 386,898 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $47,068,193 | 361,896 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $53,775,630 | 364,457 | Shares | Sole | 2025-11-10 | |
| 2025-06-30 | $62,364,873 | 370,734 | Shares | Sole | 2025-08-12 | |
| 2025-03-31 | $62,819,862 | 377,070 | Shares | Sole | 2025-09-15 | |
| 2024-12-31 | $62,456,290 | 377,836 | Shares | Sole | 2025-02-06 | |
| 2024-09-30 | $49,335,833 | 370,028 | Shares | Sole | 2024-11-12 | |
| 2024-06-30 | $49,530,690 | 393,288 | Shares | Sole | 2024-08-12 | |
| 2024-03-31 | $55,564,368 | 378,375 | Shares | Sole | 2024-05-09 | |
| 2023-12-31 | $43,138,085 | 368,041 | Shares | Sole | 2024-02-06 | |
| 2023-09-30 | $30,470,728 | 347,522 | Shares | Sole | 2023-11-08 | |
| 2023-06-30 | $58,766,399 | 357,134 | Shares | Sole | 2023-08-10 | |
| 2023-03-31 | $66,042,067 | 357,874 | Shares | Sole | 2023-05-12 | |
| 2022-12-31 | $52,322,073 | 353,647 | Shares | Sole | 2023-02-13 | |
| 2022-09-30 | $47,094,081 | 333,622 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $43,829,592 | 335,422 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $46,152,480 | 317,112 | Shares | Sole | 2022-05-13 | |
| 2021-12-31 | $88,542,527 | 302,420 | Shares | Sole | 2022-02-11 | |
| 2021-09-30 | $79,526,747 | 293,771 | Shares | Sole | 2021-11-16 | |
| 2021-06-30 | $68,614,804 | 283,006 | Shares | Sole | 2021-08-16 | |
| 2021-03-31 | $62,897,213 | 273,871 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $73,603,215 | 274,250 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $64,491,119 | 273,198 | Shares | Sole | 2020-11-13 | |
| 2020-06-30 | $61,727,608 | 270,747 | Shares | Sole | 2020-08-20 | |
| 2020-03-31 | $48,955,259 | 276,396 | Shares | Sole | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||