Rtw Investments, LP Masimo Corp Transaction History

Rtw Investments, LP

$6.1 Billion
Q1 2025

A detailed history of Rtw Investments, LP transactions in Masimo Corp stock. As of the latest transaction made, Rtw Investments, LP holds 683,294 shares of MASI stock, worth $114 Million. This represents 1.87% of its overall portfolio holdings.

Number of Shares

683,294

Previous 683,294 -0.0%

Holding current value

$114 Million

Previous $113 Million 0.79%

% of portfolio

1.87%

Previous 1.84%

23 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q4 2024 Feb 14, 2025	SELL	$132.43 - $177.7 $103 Million - $138 Million	-779,106 Reduced 53.28%	683,294 $113 Million
Q4 2023 Feb 14, 2024	SELL	$76.73 - $120.62 $3 Million - $4.72 Million	-39,093 Reduced 2.6%	1,462,400 $171 Million
Q4 2022 Feb 14, 2023	BUY	$110.88 - $150.36 $6.82 Million - $9.25 Million	61,500 Added 4.27%	1,501,493 $222 Million
Q3 2022 Nov 14, 2022	BUY	$125.58 - $169.38 $11.2 Million - $15.1 Million	89,000 Added 6.59%	1,439,993 $203 Million
Q2 2022 Aug 15, 2022	BUY	$112.97 - $151.71 $25.2 Million - $33.9 Million	223,400 Added 19.81%	1,350,993 $177 Million
Q1 2022 May 16, 2022	BUY	$135.71 - $284.87 $37.7 Million - $79.1 Million	277,622 Added 32.66%	1,127,593 $164 Million
Q4 2021 Feb 14, 2022	BUY	$266.41 - $303.29 $4.64 Million - $5.29 Million	17,431 Added 2.09%	849,971 $249 Million
Q3 2021 Nov 15, 2021	BUY	$249.0 - $285.24 $1.58 Million - $1.81 Million	6,330 Added 0.77%	832,540 $225 Million
Q2 2021 Aug 13, 2021	BUY	$208.49 - $248.2 $48.2 Million - $57.4 Million	231,254 Added 38.87%	826,210 $200 Million
Q1 2021 May 14, 2021	BUY	$220.31 - $283.75 $27.7 Million - $35.6 Million	125,540 Added 26.74%	594,956 $137 Million
Q4 2020 Feb 16, 2021	BUY	$223.82 - $271.35 $4.26 Million - $5.16 Million	19,026 Added 4.22%	469,416 $126 Million
Q3 2020 Nov 16, 2020	BUY	$209.49 - $246.81 $12.9 Million - $15.2 Million	61,614 Added 15.85%	450,390 $106 Million
Q2 2020 Aug 14, 2020	BUY	$178.49 - $250.39 $1.05 Million - $1.47 Million	5,861 Added 1.53%	388,776 $88.6 Million
Q1 2020 May 15, 2020	BUY	$148.38 - $186.78 $108,020 - $135,975	728 Added 0.19%	382,915 $67.8 Million
Q4 2019 Feb 14, 2020	BUY	$140.81 - $159.49 $1.55 Million - $1.76 Million	11,032 Added 2.97%	382,187 $60.4 Million
Q3 2019 Nov 14, 2019	SELL	$145.61 - $159.87 $160,607 - $176,336	-1,103 Reduced 0.3%	371,155 $55.2 Million
Q2 2019 Aug 14, 2019	BUY	$122.29 - $148.82 $1.06 Million - $1.29 Million	8,689 Added 2.39%	372,258 $55.4 Million
Q1 2019 May 15, 2019	BUY	$102.78 - $138.28 $2.19 Million - $2.95 Million	21,348 Added 6.24%	363,569 $50.3 Million
Q4 2018 Feb 14, 2019	BUY	$98.38 - $125.32 $3.12 Million - $3.98 Million	31,760 Added 10.23%	342,221 $36.7 Million
Q3 2018 Nov 14, 2018	BUY	$97.19 - $124.54 $5.92 Million - $7.59 Million	60,918 Added 24.41%	310,461 $38.7 Million
Q2 2018 Aug 14, 2018	BUY	$83.88 - $102.21 $1.47 Million - $1.79 Million	17,543 Added 7.56%	249,543 $24.4 Million
Q1 2018 May 14, 2018	BUY	$82.06 - $95.19 $9.12 Million - $10.6 Million	111,100 Added 91.89%	232,000 $20.4 Million
Q3 2017 Nov 14, 2017	BUY	$81.79 - $96.62 $9.89 Million - $11.7 Million	120,900	120,900 $10.5 Million

Others Institutions Holding MASI

# of Institutions

430

Shares Held

45.6M

Call Options Held

40.5K

Put Options Held

62.6K

View Full List

About MASIMO CORP

Ticker MASI
Exchange NASDAQ
Sector Healthcare
Industry Medical Instruments & Supplies
Shares Outstandng 52,530,200
Market Cap $8.8B
Description
Masimo Corporation develops, manufactures, and markets noninvasive monitoring technologies and hospital automation solutions worldwide. The company offers masimo signal extraction technology (SET) pulse oximetry with measure-through motion and low perfusion pulse oximetry monitoring to address the primary limitations of conventional pulse oximet...

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Rtw Investments, LP Masimo Corp Transaction History