A detailed history of Rtw Investments, LP transactions in Masimo Corp stock. As of the latest transaction made, Rtw Investments, LP holds 1,462,400 shares of MASI stock, worth $248 Million. This represents 3.11% of its overall portfolio holdings.

Number of Shares
1,462,400
Previous 1,462,400 -0.0%
Holding current value
$248 Million
Previous $184 Million 5.83%
% of portfolio
3.11%
Previous 3.08%

Shares

22 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
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

About MASIMO CORP


  • Ticker MASI
  • Exchange NASDAQ
  • Sector Healthcare
  • Industry Medical Instruments & Supplies
  • Shares Outstandng 52,530,200
  • Market Cap $8.9B
  • 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...
More about MASI
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