Masco Ownership | Who Owns Masco?

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Masco Ownership Summary

Masco is owned by 33.26% institutional investors, 0.22% insiders, and 66.52% retail investors. Vanguard group is the largest institutional shareholder, holding 13.41% of MAS shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.27% of its assets in Masco shares.

MAS Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Masco	33.26%	0.22%	66.52%
Sector	Industrials Stocks	46.77%	12.62%	40.60%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	28.15M	13.41%	$1.98B
Blackrock funding, inc. /de	16.05M	7.64%	$1.13B
Blackrock	16.76M	7.58%	$1.12B
State street	10.18M	4.85%	$716.22M
Harris associates l p	7.41M	3.53%	$521.67M
Boston partners	5.85M	2.79%	$411.83M
Geode capital management	5.31M	2.53%	$372.55M
Jpmorgan chase	5.09M	2.42%	$357.98M
Massachusetts financial services co /ma/	4.79M	2.28%	$336.86M
Nordea investment management ab	4.10M	1.95%	$286.40M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
140 summer partners lp	668.75K	4.09%	$47.07M
12th street asset management company	244.11K	2.91%	$17.18M
English capital management	63.30K	2.88%	$4.46M
Sitrin capital management	77.44K	2.62%	$5.45M
Fiduciary management inc /wi/	2.89M	2.06%	$203.42M
Klein pavlis & peasley financial	44.98K	1.94%	$3.17M
Lipe & dalton	53.47K	1.86%	$3.44M
Seizert capital partners	600.54K	1.83%	$42.27M
Deroy & devereaux private investment counsel	414.58K	1.46%	$29.18M
Kkm financial	58.11K	1.29%	$4.09M

Top Buyers

Holder	Shares	% Assets	Change
Wellington management group llp	2.74M	0.03%	2.74M
Norges bank	1.78M	0.02%	1.78M
Jpmorgan chase	5.09M	0.02%	1.24M
American century companies	1.06M	0.04%	880.08K
Millennium management	1.40M	0.05%	845.50K

Top Sellers

Holder	Shares	% Assets	Change
Ameriprise financial	643.74K	0.01%	-1.51M
Australiansuper pty	-	-	-1.50M
Wealthquest	-	-	-1.48M
Amundi	1.08M	0.02%	-1.14M
Qube research	573.15K	0.04%	-1.09M

New Positions

Holder	Shares	% Assets	Change	Value
Wellington management group llp	2.74M	0.03%	2.74M	$192.95M
Norges bank	1.78M	0.02%	1.78M	$129.31M
140 summer partners lp	668.75K	4.09%	668.75K	$47.07M
Vaughan nelson investment management	607.65K	0.39%	607.65K	$42.77M
Adage capital partners gp	293.10K	0.03%	293.10K	$20.63M

Sold Out

Holder	Change
Caitlin john	-2.00
Mendota financial group	-3.00
Greenline partners	-3.00
Baldwin brothers llc/ma	-4.00
Financial gravity asset management	-5.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Sep 30, 2025	482	-43.29%	69,845,217	-63.56%	33	0.40%	215	-41.58%	150	-56.52%
Jun 30, 2025	845	-3.65%	199,343,811	0.88%	94	1.09%	368	0.55%	343	-
Mar 31, 2025	13	-98.49%	1,862,059	-99.06%	-	0.01%	3	-99.25%	6	-98.08%
Dec 31, 2024	789	-7.50%	176,276,590	-10.51%	81	0.98%	360	-8.86%	289	-7.37%
Sep 30, 2024	843	4.20%	196,837,004	-6.13%	91	1.00%	392	8.59%	306	2.68%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Vanguard US Total Market Shares ETF	6.92M	3.27%	-68.67K
Vanguard Total Stock Mkt Idx Inv	6.61M	3.16%	-154.94K
Vanguard Institutional 500 Index Trust	6.03M	2.86%	45.16K
Vanguard 500 Index Investor	5.22M	2.49%	-765.19K
Oakmark Investor	4.23M	2.01%	467.00K
JHancock Disciplined Value Mid Cap I	3.68M	1.76%	-
Fidelity 500 Index	2.67M	1.28%	1.15K
Impax Water Strategy Composite	2.64M	1.26%	-
SPDR® S&P 500 ETF	2.64M	1.25%	-87.60K
SPDR® S&P 500® ETF	2.56M	1.22%	31.37K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Aug 22, 2025	Shah Jai	Group President	Sell	$6.30M
Aug 19, 2025	Eisman Heath M	VP, Controller and CAO	Sell	$181.40K
Mar 11, 2025	Straber Renee	VP - Chief HR Officer	Sell	$225.30K
Mar 07, 2025	Alexander Mark R.	-	Sell	$1.49M
Feb 26, 2025	Allman Keith J.	President and CEO	Sell	$1.66M

Insider Transactions Trends

Date	Buy	Sell
2025 Q3	-	1
2025 Q2	-	-
2025 Q1	-	3
2024 Q4	-	2
2024 Q3	-	2

MAS Ownership FAQ

Who owns the most shares of Masco?

Masco’s largest shareholders are Vanguard group (28.15M shares, 13.41%), Blackrock funding, inc. /de (16.05M shares, 7.64%), and Blackrock (16.76M shares, 7.58%). Together, they hold 28.63% of Masco’s total shares outstanding.

Does Blackrock own Masco?

Yes, BlackRock owns 7.58% of Masco, totaling 16.76M shares as of Jun 2024. This represents 0.03% of BlackRock's total assets, with a market value of 1.12B$. In the last quarter, BlackRock decreased its holdings by -444K shares, a -2.58% change.

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

140 summer partners lp is Masco’s biggest shareholder by percentage of total assets invested, with 4.09% of its assets in 668.75K Masco shares, valued at 47.07M$.

Who is the top mutual fund holder of Masco shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Masco shares, with 3.27% of its total shares outstanding invested in 6.92M Masco shares.

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