Montanaro Asset Management LTD Masimo Corp Transaction History

Montanaro Asset Management LTD

$402 Million
Q3 2025

A detailed history of Montanaro Asset Management LTD transactions in Masimo Corp stock. As of the latest transaction made, Montanaro Asset Management LTD holds 12,960 shares of MASI stock, worth $1.96 Million. This represents 0.48% of its overall portfolio holdings.

Number of Shares

12,960

Previous 22,860 43.31%

Holding current value

$1.96 Million

Previous $3.85 Million 50.27%

% of portfolio

0.48%

Previous 0.99%

19 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 13, 2025	SELL	$136.77 - $171.34 $1.35 Million - $1.7 Million	-9,900 Reduced 43.31%	12,960 $1.91 Million
Q2 2025 Aug 05, 2025	SELL	$144.4 - $171.97 $1.36 Million - $1.62 Million	-9,440 Reduced 29.23%	22,860 $3.85 Million
Q1 2025 May 13, 2025	SELL	$163.55 - $190.63 $2.32 Million - $2.71 Million	-14,200 Reduced 30.54%	32,300 $5.38 Million
Q4 2024 Feb 12, 2025	SELL	$132.43 - $177.7 $1.22 Million - $1.63 Million	-9,200 Reduced 16.52%	46,500 $7.69 Million
Q3 2024 Nov 04, 2024	BUY	$104.79 - $133.77 $209,580 - $267,540	2,000 Added 3.72%	55,700 $7.42 Million
Q2 2024 Jul 30, 2024	SELL	$115.24 - $144.91 $6.15 Million - $7.74 Million	-53,400 Reduced 49.86%	53,700 $6.76 Million
Q1 2024 May 14, 2024	BUY	$109.17 - $146.85 $311,134 - $418,522	2,850 Added 2.73%	107,100 $15.7 Million
Q4 2023 Feb 09, 2024	SELL	$76.73 - $120.62 $2.92 Million - $4.58 Million	-38,000 Reduced 26.71%	104,250 $12.2 Million
Q2 2023 Aug 11, 2023	BUY	$155.24 - $196.47 $1.32 Million - $1.67 Million	8,500 Added 6.36%	142,250 $23.4 Million
Q1 2023 Apr 18, 2023	BUY	$146.03 - $184.54 $2.19 Million - $2.77 Million	15,000 Added 12.63%	133,750 $24.7 Million
Q4 2022 Feb 08, 2023	BUY	$110.88 - $150.36 $249,480 - $338,310	2,250 Added 1.93%	118,750 $17.6 Million
Q3 2022 Nov 09, 2022	SELL	$125.58 - $169.38 $3.27 Million - $4.4 Million	-26,000 Reduced 18.25%	116,500 $16.4 Million
Q2 2022 Aug 05, 2022	BUY	$112.97 - $151.71 $1.41 Million - $1.9 Million	12,500 Added 9.62%	142,500 $18.6 Million
Q1 2022 May 12, 2022	BUY	$135.71 - $284.87 $1.07 Million - $2.24 Million	7,850 Added 6.43%	130,000 $18.9 Million
Q4 2021 Feb 11, 2022	BUY	$266.41 - $303.29 $5.12 Million - $5.82 Million	19,200 Added 18.65%	122,150 $35.8 Million
Q3 2021 Nov 15, 2021	SELL	$249.0 - $285.24 $62,250 - $71,310	-250 Reduced 0.24%	102,950 $27.9 Million
Q2 2021 Aug 13, 2021	SELL	$208.49 - $248.2 $271,037 - $322,660	-1,300 Reduced 1.24%	103,200 $25 Million
Q1 2021 May 12, 2021	BUY	$220.31 - $283.75 $6.26 Million - $8.06 Million	28,400 Added 37.32%	104,500 $24 Million
Q4 2020 Feb 16, 2021	BUY	$223.82 - $271.35 $17 Million - $20.6 Million	76,100 New	76,100 $20.4 Million

Others Institutions Holding MASI

# of Institutions

398

Shares Held

47.1M

Call Options Held

36.2K

Put Options Held

72.4K

View Full List

About MASIMO CORP

Ticker MASI
Exchange NASDAQ
Sector Healthcare
Industry Medical Instruments & Supplies
Shares Outstandng 52,530,200
Market Cap $7.94B
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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Montanaro Asset Management LTD Masimo Corp Transaction History