Estimated market cap $14.58BShares outstanding from the company’s latest SEC filing (all share classes, each priced at its own close; ADRs converted to ADS) × last close from Tiingo. Updated daily. This figure: shares as of Oct 27, 2026, last close Nov 13, 2026.67.62M shares, shares as of Oct 27, 2026CIK 1049502The SEC’s Central Index Key, the number it uses to identify every company and person that files.
Insider trades, 12 mo
0 buys · 45 sells
$43.41M sold, open market
Congress trades, 24 mo
4
2 purchases, 2 sales
13F holders
…
Lobbying, 12 mo
—
No lobbying filings
Federal contracts, 12 mo
—
None matched
Ask your AI:
Latest 10-Q
What changed in MKS Inc.'s latest quarterly report, compared with the one before.
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Insider trades
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
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13F holders
Funds that report this stock, checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
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Top 10 holders.Premium lists every holder, with CSV downloads.
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
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Lobbying
What MKS Inc. and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
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H-1B labor applications at MKS Inc.
4 certified in 12 mo
Labor condition applications decided by the Department of Labor, matched to MKS Inc. by employer name. An application is not a hire.
Median yearly wage offered, full-time certified applications, Jul 2025 to Jun 2026: —The wage the employer offered, as filed, with its unit. The yearly figure restates it per year (hourly x 2,080, weekly x 52, every two weeks x 26, monthly x 12) from the low end of the offered range. It is not what the worker was paid.
H-1B labor applications decided at MKS Inc. by quarter
We match the employer's name to a public company automatically, including a reviewed list of subsidiaries. A subsidiary can be missed and a similar name can be matched wrongly. The files carry no worker names.
Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
13F holders, Q3 2026Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
490
75.4% of shares · 188 added
Latest 10-Q
Q3 2026
What changed in MKS Inc.'s latest quarterly report, compared with the one before.
Filed Nov 5, 2026 · Quarter ended Sep 30, 2026
Summary text goes here once it has loaded. Summary text goes here once it has loaded.
Summary text goes here once it has loaded.
Summary text goes here once it has loaded.
AI summary of changes vs the prior report. Written by AI from the paragraphs that changed, and checked against them. This is information, not investment advice.
Compared with the 10-Q for the quarter ended Jun 30, 2026. Sections compared: management's discussion, risk factors, legal proceedings and controls and procedures.
Open-market trades from Form 4. 10b5-1 marks a plan set in advance.Open-market buys and sales by officers, directors and 10% owners, from SEC Form 4. A plan set in advance is marked 10b5-1.
No open-market insider trades reported since Sep 1, 2026. Insiders have two business days to file.
Recent insider trades
How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss.
490 funds report MKSI. Values checked against market prices.Fund managers with over $100 million in US-listed stocks file a 13F each quarter, up to 45 days after quarter end. Long positions only.
Funds report more than 100% of shares (Q2 2026)Fund managers with more than $100 million in US-listed stocks file a 13F each quarter. It lists their long stock positions only (shorts, options and bonds are left out) and can arrive up to 45 days after the quarter ends, so this is a snapshot of the quarter end. We add up the shares every fund reports in this class and divide by the shares outstanding. The total can pass 100%: the same shares are often reported by more than one manager (an adviser and the fund it runs), lent shares can be reported twice, and the share count can be out of date after buybacks. We divided 70.87M reported shares by 67.62M shares, from the company’s SEC filing as of Jul 28, 2026.
775 funds hold the stock.
Q3 2026: 75% · 5,560 of ~8,900 funds reported so farFunds have 45 days after a quarter ends to file. This quarter’s reports are still arriving, so the figure only counts the funds that have filed so far and will usually rise.
Q2 2025>100%
Q3 2025>100%
Q4 2025>100%
Q1 2026>100%
Q2 2026>100%
Q3 2026 (so far)75%
Q3 2026. 76 new, 188 added to, 161 trimmed, 362 exited since Q2 2026.
Download CSVEvery fund that holds MKSI, not only these ten. A download holds at most 10,000 rows; narrow the filters to get a smaller slice.
Trades by members of Congress
4 in 24 mo
Disclosed in dollar ranges, up to 45 days after the trade.Members of Congress, their spouses and dependent children report trades in dollar ranges, up to 45 days after the trade.
Recent congressional trades
How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss.
What MKS Inc. and its lobbying firms report each quarter.A company that lobbies with its own staff reports its expenses; a lobbying firm it hires reports the income it received. We count both.
No recent lobbying filings for this company.
Institutional ownership over time
How many funds reported holding the stock at the end of each quarter, and how many shares they held between them.
Funds holding the stock
Shares they report
Funds holding the stock by quarter
Q2 2013
146
—
52.01M
$1.4B
Q3 2013
142
-4
53.36M
$1.4B
Q4 2013
145
+3
52.49M
$1.6B
Q1 2014
149
+4
53.54M
$1.6B
Q2 2014
156
+7
56.15M
$1.8B
Q3 2014
163
+7
53.60M
$1.8B
Q4 2014
184
+21
52.45M
$1.9B
Q1 2015
194
+10
52.32M
$1.8B
Q2 2015
199
+5
52.90M
$2.0B
Q3 2015
203
+4
53.34M
$1.8B
Q4 2015
184
-19
53.57M
$1.9B
Q1 2016
205
+21
53.69M
$2.0B
Q2 2016
209
+4
55.29M
$2.4B
Q3 2016
247
+38
55.17M
$2.7B
Q4 2016
270
+23
56.36M
$3.4B
Q1 2017
284
+14
53.87M
$3.7B
Q2 2017
315
+31
52.40M
$3.5B
Q3 2017
342
+27
52.44M
$5.0B
Q4 2017
362
+20
51.29M
$4.8B
Q1 2018
393
+31
51.83M
$6.0B
Q2 2018
390
-3
51.37M
$4.9B
Q3 2018
383
-7
51.04M
$4.1B
Q4 2018
352
-31
50.97M
$3.3B
Q1 2019
332
-20
52.35M
$4.9B
Q2 2019
310
-22
52.62M
$4.1B
Q3 2019
307
-3
54.75M
$5.1B
Q4 2019
350
+43
53.43M
$5.9B
Q1 2020
310
-40
55.15M
$4.5B
Q2 2020
321
+11
52.88M
$6.0B
Q3 2020
340
+19
52.29M
$5.7B
Q4 2020
352
+12
52.23M
$7.9B
Q1 2021
350
-2
52.93M
$9.8B
Q2 2021
375
+25
52.22M
$9.3B
Q3 2021
376
+1
52.58M
$7.9B
Q4 2021
404
+28
53.84M
$9.4B
Q1 2022
397
-7
54.04M
$8.1B
Q2 2022
374
-23
53.96M
$5.5B
Q3 2022
358
-16
58.64M
$4.8B
Q4 2022
317
-41
67.48M
$5.7B
Q1 2023
324
+7
70.00M
$6.2B
Q2 2023
320
-4
67.79M
$7.3B
Q3 2023
324
+4
67.02M
$5.8B
Q4 2023
325
+1
68.60M
$7.1B
Q1 2024
343
+18
71.56M
$9.5B
Q2 2024
396
+53
70.65M
$9.2B
Q3 2024
409
+13
68.64M
$7.5B
Q4 2024
419
+10
70.48M
$7.4B
Q1 2025
399
-20
71.58M
$5.7B
Q2 2025
397
-2
75.42M
$7.5B
Q3 2025
437
+40
73.57M
$9.1B
Q4 2025
519
+82
70.69M
$11.3B
Q1 2026
626
+107
69.02M
$15.8B
Q2 2026
776
+150
70.87M
$31.3B
Q3 2026
490
-286
50.97M
$13.5B
Each point is a quarter-end, from Q2 2013 to Q3 2026. A fund's 13F lists its long positions in US-listed securities as of the last day of the quarter and arrives up to 45 days later, so each point shows holdings at quarter-end, not on the day they were reported.
Common shares only; options and bonds are left out. When a fund amends a report, the amended version is the one counted.
The history follows the company's current CUSIP number (55306N104). If the company's shares were ever re-issued under a different CUSIP, the quarters before the change are not part of this series, so the first point (Q2 2013) can be later than the stock's first appearance in 13F reports.
Share counts are adjusted for stock splits; none took place between these quarters. Values are in dollars as reported at the time and are not adjusted.
A quarter appears once our daily update has built its summary. If a summary cannot be built, older reports are kept and the chart shows the quarters it has until the next update repairs it.