MASI is no longer listed. Its last trade on record was Jun 12, 2026. The price and figures on this page are from its last trading day and final filings, and are no longer updated.
| 99.94% |
| +5.42 pp |
| $8.61B |
| +1.7% |
| Q4 2024 | 360 | +3.2% | 94.52% | +1.11 pp | $8.46B | +33% |
| Q3 2024 | 349 | — | 93.41% | — | $6.38B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
0 institutions opened new positions in MASI during Q2 2026, while 442 fully exited. 0 added to existing positions and 2 trimmed.
MASI institutional ownership fell by 107.77 percentage points quarter-over-quarter, with a net change of -448 holders.
The top 10 institutions account for 100.0% of all reported 13F value in MASI, and the top 25 account for 100.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Masimo Corporation (MASI) Institutional Ownership