13D/13G Filings - MKS INSTRUMENTS INC (MKSI)

Real time Form 13D and 13G transaction reports:

  • Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
  • Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
  • Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
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Reported
DateTime
Transaction
Date
TypeCompany
Symbol
Filed By
Symbol
Shares Owned
% Owned
Shares Vs. Prev ReportView
2025-02-14
09:44 am
Sale
2024-12-3113GMKS Instruments, Inc.
MKSI
T. Rowe Price Associates, Inc.3,341,428
5.000%
-937,206decrease
(-21.90%)
Filing
History
2025-02-07
7:38 pm
Sale
2024-09-3013GMKS Instruments, Inc.
MKSI
Capital International Investors3,160,389
4.700%
-508,868decrease
(-13.87%)
Filing
History
2024-11-14
1:22 pm
Sale
2024-09-3013GMKS Instruments, Inc.
MKSI
T. Rowe Price Associates, Inc.4,278,634
6.400%
-451,760decrease
(-9.55%)
Filing
History
2024-11-07
11:42 am
Purchase
2024-10-3113GMKS Instruments, Inc.
MKSI
BlackRock Inc.
BLK
7,091,928
10.200%
913,303increase
(+14.78%)
Filing
History
2024-09-10
5:08 pm
Sale
2024-08-3113GMKS Instruments, Inc.
MKSI
T. Rowe Price Associates, Inc.4,730,394
7.000%
-3,355,428decrease
(-41.50%)
Filing
History
2024-02-13
5:09 pm
Purchase
2023-12-2913GMKS Instruments, Inc.
MKSI
The Vanguard Group6,892,941
10.310%
197,494increase
(+2.95%)
Filing
History
2024-02-12
5:45 pm
Sale
2023-12-3113GMKS Instruments, Inc.
MKSI
Carlyle Group Inc.
CG
0
0.000%
-8,482,732decrease
(Position Closed)
Filing
History
2024-02-09
6:03 pm
Sale
2024-02-0713GMKS Instruments, Inc.
MKSI
Capital International Investors3,669,257
5.500%
-3,159,506decrease
(-46.27%)
Filing
History
2024-02-09
09:28 am
Purchase
2024-02-0813GMKS Instruments, Inc.
MKSI
FMR LLC4,051,183
6.057%
1,714,941increase
(+73.41%)
Filing
History
2024-02-07
09:37 am
Purchase
2023-12-3113GMKS Instruments, Inc.
MKSI
Victory Capital Management, Inc.4,490,779
6.710%
650,022increase
(+16.92%)
Filing
History
2024-01-24
5:23 pm
Purchase
2023-12-3113GMKS Instruments, Inc.
MKSI
BlackRock Inc.
BLK
6,178,625
9.200%
688,368increase
(+12.54%)
Filing
History
2024-01-10
1:56 pm
Purchase
2023-12-3113GMKS Instruments, Inc.
MKSI
T. Rowe Price Associates, Inc.8,085,822
12.100%
6,866,509increase
(+563.15%)
Filing
History
2023-06-09
2:15 pm
Purchase
2023-05-3113GMKS Instruments, Inc.
MKSI
The Vanguard Group6,695,447
10.030%
351,049increase
(+5.53%)
Filing
History
2023-02-10
2:51 pm
Purchase
2023-02-1013GMKS Instruments, Inc.
MKSI
Capital International Investors6,828,763
10.300%
243,541increase
(+3.70%)
Filing
History
2023-02-10
2:05 pm
Purchase
2023-02-1413GMKS Instruments, Inc.
MKSI
Capital International Investors6,585,222
9.900%
1,725,268increase
(+35.50%)
Filing
History
2023-02-09
11:27 am
Purchase
2022-12-3013GMKS Instruments, Inc.
MKSI
The Vanguard Group6,344,398
9.540%
700,997increase
(+12.42%)
Filing
History
2023-02-07
2:10 pm
Purchase
2022-12-3113GMKS Instruments, Inc.
MKSI
BlackRock Inc.
BLK
5,490,257
8.300%
430,486increase
(+8.51%)
Filing
History
2023-02-06
2:53 pm
Sale
2022-12-3013GMKS Instruments, Inc.
MKSI
Wellington Management Group LLP1,898,238
2.850%
-2,502,790decrease
(-56.87%)
Filing
History
2023-02-02
11:56 am
Purchase
2022-12-3113GMKS Instruments, Inc.
MKSI
Victory Capital Management, Inc.3,840,757
5.770%
3,840,757increase
(New Position)
Filing
History
2022-08-29
5:27 pm
Purchase
2022-08-1713GMKS Instruments, Inc.
MKSI
Carlyle Group Inc.
CG
8,482,732
12.800%
8,482,732increase
(New Position)
Filing
History
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