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MASIMO CORP (MASI)

Institutional ownership, SEC filings and insider activity

Sector: Healthcare & Pharma · SEC CIK 0000937556 · EDGAR filings · Updated 2026-06-22

MASIMO CORP (MASI) has reported institutional ownership of 102.0%, with 441 institutional managers holding positions valued at $9.47B per the latest 13F reporting period. SEC filings include an active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01).

Institutional ownership
102.0%
Institutional managers
441
Reported 13F value
$9.47B
Insider activity
34 trans.
−$3.72M net selling
Data flags
1 active
from SEC filings

Latest updates

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, MASIMO CORP has 441 institutional holders and institutional ownership of 102.0%.

Insider activity

Insiders reported 34 transactions (3 buys, 6 sells) across 14 reporting insiders, with a net reported value of −$3.72M.

Data flags from SEC filings

Active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), most recently filed 2026-06-10 (recurring since 2026-06-10) — source filing. The authoritative details are those stated in the filing itself.

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See full history, cross-references and alerts on Sightfile
Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-06-22.