MKS Instruments Ownership | Who Owns MKS Instruments?


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MKS Instruments Ownership Summary


MKS Instruments is owned by 99.66% institutional investors, 0.93% insiders. Vanguard group is the largest institutional shareholder, holding 11.05% of MKSI shares. American Funds SMALLCAP World A is the top mutual fund, with 4.21% of its assets in MKS Instruments shares.

MKSI Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockMKS Instruments99.66%0.93%-0.58%
SectorTechnology Stocks 44.47%12.07%43.46%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Vanguard group7.45M11.05%$777.28M
Blackrock funding, inc. /de7.12M10.56%$743.24M
Blackrock6.61M9.87%$863.50M
Fmr4.22M6.26%$440.66M
Price t rowe associates inc /md/3.34M4.96%$348.81M
Capital investors3.10M4.60%$323.37M
Victory capital management3.09M4.58%$322.39M
Nordea investment management ab2.53M3.75%$265.87M
Wellington management group llp2.29M3.40%$239.21M
Invesco2.23M3.31%$232.94M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Value management297.71K5.44%$31.08M
Aperture investors230.98K3.03%$24.11M
Roubaix capital54.15K2.71%$5.65M
Harvey partners189.50K2.20%$19.78M
Polaris capital management352.40K1.77%$36.79M
Blue grotto capital85.99K1.64%$8.98M
Shapiro capital management462.00K1.64%$48.23M
Kodai capital management lp297.16K1.27%$31.02M
Madison asset management933.94K1.10%$97.49M
Madison investment advisors933.94K1.10%$97.49M

Top Buyers

HolderShares% AssetsChange
Madison investment advisors933.94K1.10%933.94K
Norges bank818.58K0.01%818.58K
Shapiro capital management462.00K1.64%462.00K
Neuberger berman group1.78M0.15%386.65K
Assenagon asset management300.71K0.05%292.23K

Top Sellers

HolderShares% AssetsChange
Price t rowe associates inc /md/3.34M0.04%-937.21K
Jpmorgan chase452.21K0.00%-367.30K
Balyasny asset management99.81K0.02%-224.42K
American century companies---172.20K
Barclays853.05K0.03%-166.08K

New Positions

HolderShares% AssetsChangeValue
Madison investment advisors933.94K1.10%933.94K$97.49M
Norges bank818.58K0.01%818.58K$85.45M
Shapiro capital management462.00K1.64%462.00K$48.23M
Raymond james financial271.22K0.01%271.22K$28.31M
Renaissance125.40K0.02%125.40K$13.09M

Sold Out

HolderChange
Tfc financial management-1.00
Mendota financial group-1.00
Transamerica financial advisors-1.00
Financial management professionals-4.00
Migdal insurance & financial-5.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 2024397-6.15%67,169,4550.17%991.01%219-10.25%1196.25%
Sep 30, 20244181.70%66,862,869-3.21%990.93%2417.11%111-7.50%
Jun 30, 202441115.77%69,079,2291.71%1031.00%22525.00%1209.09%
Mar 31, 20243555.34%67,918,0871.51%1011.01%1805.88%110-4.35%
Dec 31, 20233370.90%66,906,7821.72%1001.04%170-11522.34%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
American Funds SMALLCAP World A2.83M4.21%-
iShares Core S&P Mid-Cap ETF2.20M3.26%3.82K
Vanguard US Total Market Shares ETF2.12M3.15%1.63K
Vanguard Total Stock Mkt Idx Inv2.12M3.14%1.18K
Victory Sycamore Established Value R2.10M3.12%35.00K
Vanguard Small Cap Index1.72M2.55%1.41K
T. Rowe Price Mid-Cap Value1.71M2.54%75.10K
T. Rowe Price US Mid-Cap Value Equity1.64M2.43%-35.84K
Fidelity Low-Priced Stock1.31M1.95%-
Vanguard Small Cap Value Index Inv1.13M1.68%-3.52K

Recent Insider Transactions


DateNameRoleActivityValue
Mar 03, 2025Mora Elizabeth-Sell$25.43K
Mar 03, 2025Moloney Jacqueline F-Sell$27.74K
Feb 18, 2025COLELLA GERARD G-Sell$836.22K
Dec 10, 2024Moloney Jacqueline F-Sell$34.44K
Dec 02, 2024Mora Elizabeth-Sell$31.19K

Insider Transactions Trends


DateBuySell
2025 Q1-3
2024 Q4-3
2024 Q3-3
2024 Q2-2
2024 Q1-9

MKSI Ownership FAQ


Who owns the most shares of MKS Instruments?

MKS Instruments’s largest shareholders are Vanguard group (7.45M shares, 11.05%), Blackrock funding, inc. /de (7.12M shares, 10.56%), and Blackrock (6.61M shares, 9.87%). Together, they hold 31.48% of MKS Instruments’s total shares outstanding.

Does Blackrock own MKS Instruments?

Yes, BlackRock owns 9.87% of MKS Instruments, totaling 6.61M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 863.5M$. In the last quarter, BlackRock increased its holdings by 201.24K shares, a 3.14% change.

Who is MKS Instruments’s biggest shareholder by percentage of total assets invested?

Value management is MKS Instruments’s biggest shareholder by percentage of total assets invested, with 5.44% of its assets in 297.71K MKS Instruments shares, valued at 31.08M$.

Who is the top mutual fund holder of MKS Instruments shares?

American Funds SMALLCAP World A is the top mutual fund holder of MKS Instruments shares, with 4.21% of its total shares outstanding invested in 2.83M MKS Instruments shares.

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