Frontier Capital Management CO LLC Mks Instruments Inc Transaction History

Frontier Capital Management CO LLC

$10 Billion
Q3 2025

A detailed history of Frontier Capital Management CO LLC transactions in Mks Instruments Inc stock. As of the latest transaction made, Frontier Capital Management CO LLC holds 1,080,763 shares of MKSI stock, worth $154 Million. This represents 1.33% of its overall portfolio holdings.

Number of Shares

1,080,763

Previous 912,380 18.46%

Holding current value

$154 Million

Previous $90.7 Million 47.56%

% of portfolio

1.33%

Previous 0.92%

27 transactions

Quarter	Operation	Price Per share	shares change	shares Held
Q3 2025 Nov 14, 2025	BUY	$89.62 - $129.92 $15.1 Million - $21.9 Million	168,383 Added 18.46%	1,080,763 $134 Million
Q2 2025 Aug 14, 2025	BUY	$58.78 - $100.27 $31.9 Million - $54.4 Million	542,094 Added 146.4%	912,380 $90.7 Million
Q1 2025 May 15, 2025	BUY	$78.89 - $122.69 $541,027 - $841,408	6,858 Added 1.89%	370,286 $29.7 Million
Q4 2024 Feb 14, 2025	BUY	$98.56 - $117.93 $552,527 - $661,115	5,606 Added 1.57%	363,428 $37.9 Million
Q3 2024 Nov 14, 2024	SELL	$103.52 - $144.6 $8.09 Million - $11.3 Million	-78,141 Reduced 17.92%	357,822 $38.9 Million

Q2 2024 Aug 14, 2024	SELL	$108.17 - $137.16 $22.8 Million - $28.9 Million	-210,914 Reduced 32.6%	435,963 $56.9 Million
Q1 2024 May 15, 2024	BUY	$97.35 - $133.36 $9.87 Million - $13.5 Million	101,361 Added 18.58%	646,877 $86 Million
Q4 2023 Feb 14, 2024	BUY	$65.32 - $105.03 $5.94 Million - $9.55 Million	90,956 Added 20.01%	545,516 $56.1 Million
Q3 2023 Nov 14, 2023	SELL	$83.17 - $109.5 $5.42 Million - $7.13 Million	-65,158 Reduced 12.54%	454,560 $39.3 Million
Q2 2023 Aug 14, 2023	BUY	$79.76 - $110.27 $13.2 Million - $18.3 Million	166,105 Added 46.97%	519,718 $56.2 Million
Q1 2023 May 15, 2023	SELL	$83.13 - $112.97 $6.92 Million - $9.41 Million	-83,282 Reduced 19.06%	353,613 $31.3 Million
Q4 2022 Feb 14, 2023	BUY	$65.09 - $89.25 $14.9 Million - $20.4 Million	228,937 Added 110.09%	436,895 $37 Million
Q3 2022 Nov 14, 2022	BUY	$82.31 - $123.77 $10.8 Million - $16.3 Million	131,411 Added 171.67%	207,958 $17.2 Million
Q2 2022 Jul 20, 2022	SELL	$99.35 - $144.63 $3.48 Million - $5.07 Million	-35,065 Reduced 31.42%	76,547 $7.86 Million
Q1 2022 Apr 14, 2022	SELL	$136.3 - $180.69 $13.1 Million - $17.3 Million	-95,815 Reduced 46.19%	111,612 $16.7 Million
Q4 2021 Jan 19, 2022	BUY	$141.92 - $177.58 $21.1 Million - $26.4 Million	148,515 Added 252.1%	207,427 $36.1 Million
Q3 2021 Oct 19, 2021	SELL	$140.42 - $170.77 $1.09 Million - $1.32 Million	-7,752 Reduced 11.63%	58,912 $8.89 Million
Q2 2021 Aug 09, 2021	BUY	$165.96 - $196.86 $330,094 - $391,554	1,989 Added 3.08%	66,664 $11.9 Million
Q1 2021 May 13, 2021	SELL	$147.92 - $188.24 $41.2 Million - $52.4 Million	-278,512 Reduced 81.15%	64,675 $12 Million
Q4 2020 Jan 19, 2021	SELL	$108.39 - $156.88 $5.46 Million - $7.9 Million	-50,354 Reduced 12.8%	343,187 $51.6 Million
Q3 2020 Nov 16, 2020	SELL	$103.3 - $128.48 $1.36 Million - $1.69 Million	-13,160 Reduced 3.24%	393,541 $43 Million
Q2 2020 Jul 17, 2020	SELL	$74.98 - $114.61 $9.57 Million - $14.6 Million	-127,581 Reduced 23.88%	406,701 $46.1 Million
Q1 2020 Apr 16, 2020	SELL	$70.88 - $120.84 $3.72 Million - $6.34 Million	-52,461 Reduced 8.94%	534,282 $43.5 Million
Q4 2019 Feb 14, 2020	BUY	$87.04 - $114.73 $4 Million - $5.28 Million	45,983 Added 8.5%	586,743 $64.5 Million
Q3 2019 Nov 14, 2019	BUY	$72.95 - $95.17 $15.9 Million - $20.7 Million	217,564 Added 67.32%	540,760 $49.9 Million
Q2 2019 Aug 14, 2019	BUY	$70.87 - $101.6 $17.8 Million - $25.5 Million	251,117 Added 348.39%	323,196 $25.2 Million
Q1 2019 May 07, 2019	BUY	$63.07 - $93.05 $4.55 Million - $6.71 Million	72,079 New	72,079 $6.71 Million

Others Institutions Holding MKSI

# of Institutions

488

Shares Held

70.6M

Call Options Held

2.05M

Put Options Held

371K

View Full List

About MKS INSTRUMENTS INC

Ticker MKSI
Exchange NASDAQ
Sector Technology
Industry Scientific & Technical Instruments
Shares Outstandng 66,491,100
Market Cap $9.49B
Description
MKS Instruments, Inc. provides instruments, systems, subsystems, and process control solutions that measure, monitor, deliver, analyze, power, and control critical parameters of manufacturing processes worldwide. Its Vacuum & Analysis segment offers pressure and vacuum control solutions, including direct and indirect pressure measurement; ma...

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Frontier Capital Management CO LLC Mks Instruments Inc Transaction History