MASCO CORP (MAS) Institutional Shareholders
MASCO CORP (MAS) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $15.91B in MAS holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of MAS tracked by InsiderSet, reporting ownership valued at approximately $1.28B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.07B, representing an estimated loss of -16.09% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 43% of the total disclosed MAS value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Capital Management Llc, Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in MASCO CORP (MAS).
This page ranks the largest institutional MAS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
896
Total Reported Value
$15.91B
Largest Holder
Blackrock, Inc.
Largest Position
$1.28B
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
75
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 15,717,623 | $1,278,943,006 | $1,073,199,298 | -$205,743,708 | -16.09% | |
| Vanguard Capital Management Llc | 0.02% | 13,179,924 | $1,072,450,416 | $899,925,211 | -$172,525,205 | -16.09% | |
| Vanguard Portfolio Management Llc | 0.04% | 12,219,585 | $994,307,631 | $834,353,264 | -$159,954,367 | -16.09% | |
| State Street Corp | 0.03% | 10,726,032 | $872,777,224 | $732,373,465 | -$140,403,759 | -16.09% | |
| Harris Associates L P | 0.90% | 8,318,944 | $676,912,478 | $568,017,496 | -$108,894,982 | -16.09% | |
| Jpmorgan Chase & Co | 0.03% | 5,463,570 | $439,817,518 | $373,052,560 | -$66,764,958 | -15.18% | |
| Geode Capital Management, Llc | 0.02% | 5,350,026 | $433,577,739 | $365,299,775 | -$68,277,964 | -15.75% | |
| Van Eck Associates Corp | 0.23% | 4,705,750 | $382,906,876 | $321,308,610 | -$61,598,266 | -16.09% | |
| Boston Partners | 0.33% | 4,606,061 | $374,729,446 | $314,501,845 | -$60,227,601 | -16.07% | |
| Massachusetts Financial Services Co | 0.12% | 4,522,430 | $372,833,292 | $308,791,520 | -$64,041,772 | -17.18% | |
| Wellington Management Group Llp | 0.05% | 3,789,629 | $308,362,112 | $258,755,868 | -$49,606,244 | -16.09% | |
| Beutel, Goodman & Co Ltd. | 2.22% | 3,711,884 | $302,036,000 | $253,447,440 | -$48,588,560 | -16.09% | |
| Invesco Ltd. | 0.02% | 3,578,620 | $291,192,331 | $244,348,174 | -$46,844,157 | -16.09% | |
| Northern Trust Corp | 0.03% | 3,212,340 | $261,388,105 | $219,338,575 | -$42,049,530 | -16.09% | |
| Nordea Investment Management Ab | 0.20% | 3,086,156 | $249,916,913 | $210,722,732 | -$39,194,181 | -15.68% | |
| Morgan Stanley | 0.01% | 2,720,420 | $221,360,810 | $185,750,278 | -$35,610,532 | -16.09% | |
| Nuveen, Llc | 0.05% | 2,407,975 | $195,936,869 | $164,416,533 | -$31,520,336 | -16.09% | |
| Aqr Capital Management Llc | 0.07% | 2,329,073 | $187,653,403 | $159,029,104 | -$28,624,299 | -15.25% | |
| Bank Of America Corp | 0.01% | 2,192,754 | $178,424,404 | $149,721,243 | -$28,703,161 | -16.09% | |
| Norges Bank | 0.02% | 2,182,005 | $177,549,747 | $148,987,301 | -$28,562,446 | -16.09% | |
| Goldman Sachs Group Inc | 0.02% | 2,164,182 | $176,099,470 | $147,770,347 | -$28,329,123 | -16.09% | |
| Holocene Advisors, Lp | 0.40% | 2,157,324 | $175,541,454 | $147,302,083 | -$28,239,371 | -16.09% | |
| Earnest Partners Llc | 0.63% | 2,149,015 | $174,865,351 | $146,734,744 | -$28,130,607 | -16.09% | |
| Quantinno Capital Management Lp | 0.21% | 2,098,739 | $170,774,414 | $143,301,899 | -$27,472,515 | -16.09% | |
| Impax Asset Management Group Plc | 1.08% | 2,031,735 | $165,322,277 | $138,726,866 | -$26,595,411 | -16.09% | |
| Charles Schwab Investment Management Inc | 0.02% | 1,971,054 | $160,384,664 | $134,583,567 | -$25,801,097 | -16.09% | |
| Bank Of New York Mellon Corp | 0.03% | 1,925,376 | $156,667,849 | $131,464,673 | -$25,203,176 | -16.09% | |
| Schroder Investment Management Group | 0.11% | 1,881,186 | $151,435,474 | $128,447,380 | -$22,988,094 | -15.18% | |
| Deutsche Bank Ag\ | 0.04% | 1,839,409 | $149,672,711 | $125,594,847 | -$24,077,864 | -16.09% | |
| Pictet Asset Management Holding Sa | 0.13% | 1,715,002 | $139,543,798 | $117,100,337 | -$22,443,461 | -16.08% | |
| American Century Companies Inc | 0.06% | 1,682,223 | $136,882,611 | $114,862,186 | -$22,020,425 | -16.09% | |
| Capital World Investors | 0.02% | 1,668,946 | $135,802,136 | $113,955,633 | -$21,846,503 | -16.09% | |
| Ariel Appreciation Fund | John W. Rogers Jr. | 1.33% | 1,635,096 | $133,047,761 | $111,644,355 | -$21,403,406 | -16.09% |
| Eurizon Capital Sgr S.P.A. | 0.35% | 1,613,023 | $131,020,406 | $110,137,210 | -$20,883,196 | -15.94% | |
| Fiduciary Management Inc | 1.81% | 1,562,913 | $127,174,231 | $106,715,700 | -$20,458,531 | -16.09% | |
| Ameriprise Financial Inc | 0.02% | 1,308,395 | $106,464,128 | $89,337,211 | -$17,126,917 | -16.09% | |
| Arrowstreet Capital, Limited Partnership | 0.05% | 1,276,438 | $103,863,760 | $87,155,187 | -$16,708,573 | -16.09% | |
| Dimensional Fund Advisors Lp | 0.02% | 1,255,788 | $102,177,363 | $85,745,205 | -$16,432,158 | -16.08% | |
| Empower Advisory Group, Llc | 0.23% | 1,159,225 | $94,326,144 | $79,151,883 | -$15,174,261 | -16.09% | |
| Envestnet Asset Management Inc | 0.02% | 1,150,389 | $93,607,163 | $78,548,561 | -$15,058,602 | -16.09% | |
| Vanguard Fiduciary Trust Co | 0.02% | 1,131,930 | $92,105,144 | $77,288,180 | -$14,816,964 | -16.09% | |
| Fuller & Thaler Asset Management, Inc. | 0.24% | 1,101,981 | $89,668,197 | $75,243,263 | -$14,424,934 | -16.09% | |
| First Trust Advisors Lp | 0.05% | 1,078,276 | $87,739,096 | $73,624,685 | -$14,114,411 | -16.09% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.02% | 1,412,053 | $85,245,641 | $96,414,979 | +$11,169,338 | +13.10% | |
| Caisse De Depot Et Placement Du Quebec | 0.10% | 872,032 | $70,957,244 | $59,542,345 | -$11,414,899 | -16.09% | |
| Ubs Group Ag | 0.01% | 795,456 | $64,726,256 | $54,313,736 | -$10,412,520 | -16.09% | |
| Confluence Investment Management Llc | 0.98% | 768,680 | $62,547,513 | $52,485,470 | -$10,062,043 | -16.09% | |
| Legal & General Group Plc | 0.01% | 730,589 | $59,448,023 | $49,884,617 | -$9,563,406 | -16.09% | |
| Citigroup Inc | 0.03% | 699,907 | $56,951,420 | $47,789,650 | -$9,161,770 | -16.09% | |
| Royal Bank Of Canada | 0.01% | 692,634 | $56,360,000 | $47,293,050 | -$9,066,950 | -16.09% |
Frequently asked questions about MAS
Who owns the most MAS stock?
The largest holders of MAS are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for MASCO CORP (MAS).
Is MAS widely held by superinvestors?
Many widely followed stocks like MAS appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly MAS is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.