Activist 13D/13G Filings - MASIMO CORP (MASI)

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company’s equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Reported
DateTime		TypeCompany
Symbol		Filed By
Symbol		Shares Owned
% Owned		Shares Vs. Prev ReportFiling
2024-03-27
12:42 pm
Unchanged		13DMASIMO CORP
MASI		Politan Capital Management LP4,713,518
8.9%		0
(Unchanged)		View
2024-02-14
4:32 pm
Sale		13GMASIMO CORP
MASI		KIANI JOE E4,972,819
9.2%		-2,202decrease
(-0.04%)		View
2024-02-13
5:09 pm
Sale		13GMASIMO CORP
MASI		VANGUARD GROUP INC4,781,318
9.05%		-74,183decrease
(-1.53%)		View
2024-02-09
09:16 am
Purchase		13GMASIMO CORP
MASI		FMR LLC6,927,572
13.11%		1,471,229increase
(+26.96%)		View
2024-01-24
09:46 am
Sale		13GMASIMO CORP
MASI		BlackRock Inc.
BLK		5,659,131
10.7%		-297,701decrease
(-5.00%)		View
2023-06-30
09:50 am
Unchanged		13DMASIMO CORP
MASI		Politan Capital Management LP4,713,518
8.9%		0
(Unchanged)		View
2023-05-01
4:01 pm
Sale		13DMASIMO CORP
MASI		Politan Capital Management LP4,713,518
9%		-26,445decrease
(-0.56%)		View
2023-03-13
06:32 am
Unchanged		13DMASIMO CORP
MASI		Politan Capital Management LP4,739,963
9%		0
(Unchanged)		View
2023-03-06
06:51 am
Purchase		13DMASIMO CORP
MASI		Politan Capital Management LP4,739,963
9%		91,094increase
(+1.96%)		View
2023-02-14
5:04 pm
Purchase		13GMASIMO CORP
MASI		KIANI JOE E4,975,021
9.3%		177,915increase
(+3.71%)		View
2023-02-09
11:25 am
Purchase		13GMASIMO CORP
MASI		VANGUARD GROUP INC4,855,501
9.24%		151,759increase
(+3.23%)		View
2023-01-26
08:52 am
Unchanged		13GMASIMO CORP
MASI		BlackRock Inc.
BLK		5,956,832
11.3%		0
(Unchanged)		View
2023-01-20
5:17 pm
Sale		13GMASIMO CORP
MASI		BlackRock Inc.
BLK		5,956,832
11.3%		-98,381decrease
(-1.62%)		View
2023-01-10
12:48 pm
Purchase		13GMASIMO CORP
MASI		FMR LLC5,456,343
10.38%		3,401,445increase
(+165.53%)		View
2022-10-21
09:50 am
Unchanged		13DMASIMO CORP
MASI		Politan Capital Management LP4,648,869
8.8%		0
(Unchanged)		View
2022-09-27
4:33 pm
Purchase		13DMASIMO CORP
MASI		Politan Capital Management LP4,648,869
8.8%		217,585increase
(+4.91%)		View
2022-08-16
06:37 am
Purchase		13DMASIMO CORP
MASI		Politan Capital Management LP4,431,284
8.4%		4,431,284increase
(New Position)		View
2022-06-09
3:20 pm
Sale		13GMASIMO CORP
MASI		BlackRock Inc.
BLK		6,055,213
10.9%		-2,971,161decrease
(-32.92%)		View
2022-02-14
4:12 pm
Purchase		13GMASIMO CORP
MASI		KIANI JOE E4,797,106
8.5%		50,620increase
(+1.07%)		View
2022-02-10
08:22 am
Purchase		13GMASIMO CORP
MASI		VANGUARD GROUP INC4,703,742
8.52%		102,836increase
(+2.24%)		View
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