A detailed history of Westfield Capital Management CO LP transactions in Masimo Corp stock. As of the latest transaction made, Westfield Capital Management CO LP holds 1,394,056 shares of MASI stock, worth $241 Million. This represents 0.88% of its overall portfolio holdings.

Number of Shares
1,394,056
Previous 1,131,686 23.18%
Holding current value
$241 Million
Previous $143 Million 30.36%
% of portfolio
0.88%
Previous 0.72%

Shares

22 transactions
Quarter Operation Price Per share shares change shares Held SEC Form
Q3 2024

Nov 12, 2024

BUY
$104.79 - $133.77 $27.5 Million - $35.1 Million
262,370 Added 23.18%
1,394,056 $186 Million
Q2 2024

Aug 14, 2024

BUY
$115.24 - $144.91 $51.3 Million - $64.6 Million
445,586 Added 64.94%
1,131,686 $143 Million
Q1 2024

May 10, 2024

SELL
$109.17 - $146.85 $14.5 Million - $19.4 Million
-132,376 Reduced 16.17%
686,100 $101 Million
Q4 2023

Feb 09, 2024

BUY
$76.73 - $120.62 $16.5 Million - $25.9 Million
214,795 Added 35.58%
818,476 $95.9 Million
Q3 2023

Nov 13, 2023

SELL
$84.17 - $161.17 $29.5 Million - $56.4 Million
-350,118 Reduced 36.71%
603,681 $52.9 Million
Q2 2023

Aug 11, 2023

BUY
$155.24 - $196.47 $148 Million - $187 Million
953,799 New
953,799 $157 Million
Q2 2021

Aug 10, 2021

SELL
$208.49 - $248.2 $43.3 Million - $51.6 Million
-207,846 Closed
0 $0
Q1 2021

May 14, 2021

SELL
$220.31 - $283.75 $6.52 Million - $8.4 Million
-29,597 Reduced 12.46%
207,846 $47.7 Million
Q4 2020

Feb 12, 2021

SELL
$223.82 - $271.35 $11.9 Million - $14.4 Million
-53,100 Reduced 18.28%
237,443 $63.7 Million
Q3 2020

Nov 13, 2020

SELL
$209.49 - $246.81 $2.76 Million - $3.25 Million
-13,184 Reduced 4.34%
290,543 $68.6 Million
Q2 2020

Aug 13, 2020

SELL
$178.49 - $250.39 $23.1 Million - $32.4 Million
-129,550 Reduced 29.9%
303,727 $69.2 Million
Q1 2020

May 14, 2020

SELL
$148.38 - $186.78 $378,072 - $475,915
-2,548 Reduced 0.58%
433,277 $76.7 Million
Q4 2019

Feb 13, 2020

BUY
$140.81 - $159.49 $30.2 Million - $34.2 Million
214,380 Added 96.81%
435,825 $68.9 Million
Q3 2019

Nov 08, 2019

BUY
$145.61 - $159.87 $4.87 Million - $5.35 Million
33,468 Added 17.8%
221,445 $32.9 Million
Q2 2019

Aug 13, 2019

SELL
$122.29 - $148.82 $974,651 - $1.19 Million
-7,970 Reduced 4.07%
187,977 $28 Million
Q1 2019

May 14, 2019

SELL
$102.78 - $138.28 $953,284 - $1.28 Million
-9,275 Reduced 4.52%
195,947 $27.1 Million
Q4 2018

Feb 08, 2019

SELL
$98.38 - $125.32 $2.75 Million - $3.5 Million
-27,915 Reduced 11.97%
205,222 $22 Million
Q3 2018

Nov 14, 2018

SELL
$97.19 - $124.54 $36.2 Million - $46.4 Million
-372,250 Reduced 61.49%
233,137 $29 Million
Q2 2018

Aug 13, 2018

SELL
$83.88 - $102.21 $3.99 Million - $4.86 Million
-47,571 Reduced 7.29%
605,387 $59.1 Million
Q1 2018

May 14, 2018

BUY
$82.06 - $95.19 $13.5 Million - $15.7 Million
164,490 Added 33.67%
652,958 $57.4 Million
Q4 2017

Feb 13, 2018

BUY
$84.49 - $90.09 $22.2 Million - $23.6 Million
262,489 Added 116.16%
488,468 $41.4 Million
Q3 2017

Nov 13, 2017

BUY
$81.79 - $96.62 $18.5 Million - $21.8 Million
225,979
225,979 $19.6 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 $9.09B
  • 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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