SC Filed 2023-03-06 Event — SEC 0000914121-23-000143 →

Politan Capital Management LP → MASIMO CORP MASI

Stake: — Shares: —

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

0 transactions

0 buys · 0 sales · 0 awards/exercises

Issuer Cluster

10 13D/G filings on this issuer

9 other filings besides this one

Filer Track Record

11 filings by this filer

10 other filings in the data moat

Short Interest · settle 2026-05-29

DTC 3.65

3,501,739 shares short · -6.1% vs prior

Other 13D/G Filings on MASIMO CORP

Filed	Form	Filer	Stake	Shares
2026-06-11	SCHEDULE 13D/A	Politan Capital Management LP	—	0	view →
2024-07-15	SC	Politan Capital Management LP	—	—	view →
2024-07-12	SC	Politan Capital Management LP	—	—	view →
2024-07-08	SC	Politan Capital Management LP	—	—	view →
2023-06-30	SC	Politan Capital Management LP	—	—	view →
2023-05-01	SC	Politan Capital Management LP	—	—	view →
2023-03-13	SC	Politan Capital Management LP	—	—	view →
2022-10-21	SC	Politan Capital Management LP	—	—	view →
2022-09-27	SC	Politan Capital Management LP	—	—	view →

Other Filings by Politan Capital Management LP

Filed	Form	Issuer	Stake	Shares
2026-06-11	SCHEDULE 13D/A	MASIMO CORP	—	0	view →
2024-07-15	SC	MASIMO CORP MASI	—	—	view →
2024-07-12	SC	MASIMO CORP MASI	—	—	view →
2024-07-08	SC	MASIMO CORP MASI	—	—	view →
2023-11-01	SC	Azenta, Inc. AZTA	—	—	view →
2023-06-30	SC	MASIMO CORP MASI	—	—	view →
2023-05-01	SC	MASIMO CORP MASI	—	—	view →
2023-03-13	SC	MASIMO CORP MASI	—	—	view →
2022-10-21	SC	MASIMO CORP MASI	—	—	view →
2022-09-27	SC	MASIMO CORP MASI	—	—	view →

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