Masco Ownership | Who Owns Masco?

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Masco Ownership Summary

Masco is owned by 28.90% institutional investors, 0.22% insiders, and 70.88% retail investors. Vanguard group is the largest institutional shareholder, holding 13.25% 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	28.90%	0.22%	70.88%
Sector	Industrials Stocks	47.66%	12.56%	39.78%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Vanguard group	27.82M	13.25%	$1.77B
Blackrock funding, inc. /de	16.50M	7.90%	$1.05B
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
Jpmorgan chase	6.06M	2.89%	$384.78M
Boston partners	5.85M	2.79%	$411.83M
Geode capital management	5.31M	2.54%	$335.92M
Massachusetts financial services co /ma/	4.48M	2.13%	$284.43M
Nordea investment management ab	4.37M	2.08%	$278.62M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
140 summer partners lp	668.75K	4.09%	$47.07M
English capital management	63.30K	2.47%	$4.02M
12th street asset management company	236.22K	2.47%	$14.99M
Sitrin capital management	77.31K	2.33%	$4.91M
Fiduciary management inc /wi/	2.64M	1.84%	$167.32M
Cambiar investors	612.83K	1.74%	$38.89M
Lipe & dalton	50.83K	1.59%	$3.23M
Seizert capital partners	589.51K	1.58%	$37.41M
Kkm financial	58.11K	1.29%	$4.09M
Deroy & devereaux private investment counsel	407.47K	1.26%	$25.86M

Top Buyers

Holder	Shares	% Assets	Change
Norges bank	3.07M	0.02%	3.07M
Wellington management group llp	2.74M	0.03%	2.74M
Barclays	1.62M	0.02%	1.14M
Jpmorgan chase	6.06M	0.02%	977.68K
American century companies	1.06M	0.04%	880.08K

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
Norges bank	3.07M	0.02%	3.07M	$194.82M
Wellington management group llp	2.74M	0.03%	2.74M	$192.95M
140 summer partners lp	668.75K	4.09%	668.75K	$47.07M
Adage capital partners gp	293.10K	0.03%	293.10K	$20.63M
Axa investment managers	55.41K	0.01%	55.41K	$3.90M

Sold Out

Holder	Change
Winnow wealth	-1.00
Caitlin john	-2.00
Quaker wealth management	-2.00
Greenline partners	-3.00
Gps wealth strategies group	-3.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Dec 31, 2025	381	-57.05%	60,686,373	-69.58%	28	0.32%	126	-70.21%	172	-41.30%
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%

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	6.57M	3.23%	85.73K
Vanguard Institutional 500 Index Trust	6.03M	2.86%	45.16K
Vanguard 500 Index Investor	5.34M	2.62%	51.02K
VanEck Morningstar Wide Moat ETF	4.89M	2.40%	-2.04K
Vanguard Small Cap Index	4.72M	2.32%	11.76K
Oakmark Investor	4.58M	2.25%	215.00K
Vanguard Windsor II Inv	3.52M	1.73%	3.52M
Vanguard Small Cap Value Index Inv	3.03M	1.49%	8.63K
Hartford Dividend and Growth Y	3.01M	1.48%	-363.46K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 07, 2026	PAYNE LISA A	-	Sell	$937.65K
Mar 07, 2026	PAYNE LISA A	-	Sell	$127.70K
Feb 26, 2026	Eisman Heath M	VP, Controller and CAO	Sell	$53.72K
Feb 12, 2026	Cole Kenneth G.	VP, General Counsel and Sec.	Sell	$1.86M
Feb 12, 2026	Cole Kenneth G.	VP, General Counsel and Sec.	Sell	$2.14M

Insider Transactions Trends

Date	Buy	Sell
2026 Q1	-	3
2025 Q4	-	-
2025 Q3	-	2
2025 Q2	-	-
2025 Q1	-	3

MAS Ownership FAQ

Who owns the most shares of Masco?

Masco’s largest shareholders are Vanguard group (27.82M shares, 13.25%), Blackrock funding, inc. /de (16.5M shares, 7.90%), and Blackrock (16.76M shares, 7.58%). Together, they hold 28.73% 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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