Masco Corporation (MAS) Ownership
MAS ownership summary
as of October 18, 2026- Institutions
- 106.6% of shares outstanding
- Insiders
- 0.23% of shares outstanding
- Shares outstanding
- 197.2M
- Float
- 196.4M shares available to trade
- Short interest
- 4.88% 8.3M shares short
- Days to cover
- 3.47 short interest up 0.2% vs prior month
- Institutions 106.60%
- Insiders 0.23%
MAS top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 7.97% | 15.7M | $1.15B | +99,063 (+0.6%) | June 30, 2026 |
| 2 | Vanguard Capital Management, LLC | 6.68% | 13.2M | $960.4M | −44,823 (−0.3%) | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 6.20% | 12.2M | $890.4M | −132,081 (−1.1%) | June 30, 2026 |
| 4 | State Street Corp | 5.44% | 10.7M | $781.6M | +766,713 (+7.7%) | June 30, 2026 |
| 5 | Harris Associates L.P. | 4.22% | 8.3M | $606.2M | −277,790 (−3.2%) | June 30, 2026 |
| 6 | JPMorgan Chase & Co | 2.77% | 5.5M | $398.1M | −1.2M (−17.7%) | June 30, 2026 |
| 7 | Geode Capital Management, LLC | 2.71% | 5.4M | $389.9M | −4,418 (−0.1%) | June 30, 2026 |
| 8 | Van Eck Associates Corporation | 2.39% | 4.7M | $342.9M | −1.1M (−19.5%) | June 30, 2026 |
| 9 | Boston Partners Global Investors, Inc | 2.34% | 4.6M | $335.6M | +114,040 (+2.5%) | June 30, 2026 |
| 10 | Massachusetts Financial Services Company | 2.29% | 4.5M | $329.5M | +198,636 (+4.6%) | June 30, 2026 |
| 11 | Wellington Management Company LLP | 1.92% | 3.8M | $276.2M | −445,709 (−10.5%) | June 30, 2026 |
| 12 | Beutel, Goodman & Company Ltd. | 1.88% | 3.7M | $270.5M | +545,443 (+17.2%) | June 30, 2026 |
| 13 | Amvescap Plc. | 1.81% | 3.6M | $260.8M | −209,337 (−5.5%) | June 30, 2026 |
| 14 | Northern Trust Corp | 1.63% | 3.2M | $234.1M | −68,133 (−2.1%) | June 30, 2026 |
| 15 | Nordea Investment Mgmt Bank Demark A/s | 1.57% | 3.1M | $224.9M | −1.4M (−31.4%) | June 30, 2026 |
| 16 | Morgan Stanley - Brokerage Accounts | 1.38% | 2.7M | $198.2M | −37,436 (−1.4%) | June 30, 2026 |
| 17 | Nuveen, LLC | 1.22% | 2.4M | $175.5M | −648 (−0.0%) | June 30, 2026 |
| 18 | AQR Capital Management LLC | 1.18% | 2.3M | $169.7M | +1.3M (+131.8%) | June 30, 2026 |
| 19 | Bank of America Corp | 1.11% | 2.2M | $159.8M | +187,039 (+9.3%) | June 30, 2026 |
| 20 | NORGES BANK | 1.11% | 2.2M | $159.0M | −887,930 (−28.9%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 7 holders added 3.2M shares and 13 cut 5.8M.
MAS top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Vanguard MStar Total Stk Mkt Idx Invest | 3.25% | 6.4M | $466.5M | −17,962 (−0.3%) | August 31, 2026 |
| 2 | Vanguard 500 Index Investor | 2.62% | 5.2M | $377.2M | −182,427 (−3.4%) | September 30, 2026 |
| 3 | Vanguard Small Cap Index | 2.25% | 4.4M | $323.5M | −201,316 (−4.3%) | September 30, 2026 |
| 4 | Oakmark Investor | 1.67% | 3.3M | $239.7M | −66,300 (−2.0%) | June 30, 2026 |
| 5 | Hartford Dividend and Growth Y | 1.53% | 3.0M | $219.2M | −19,343 (−0.6%) | August 31, 2026 |
| 6 | Vanguard MStar Small Cap Value Index | 1.46% | 2.9M | $210.4M | −60,800 (−2.1%) | September 30, 2026 |
| 7 | Invesco S&P 500® Equal Weight ETF | 1.43% | 2.8M | $205.4M | −5,890 (−0.2%) | September 30, 2026 |
| 8 | JHancock Disciplined Value Mid Cap I | 1.37% | 2.7M | $196.6M | −42,774 (−1.6%) | August 31, 2026 |
| 9 | iShares Core S&P 500 ETF | 1.33% | 2.6M | $191.4M | −4,218 (−0.2%) | September 30, 2026 |
| 10 | Fidelity 500 Index | 1.33% | 2.6M | $190.8M | +10,044 (+0.4%) | August 31, 2026 |
| 11 | State Street® SPDR® S&P 500® ETF | 1.22% | 2.4M | $174.6M | — | September 30, 2026 |
| 12 | Vanguard Windsor II Inv | 1.15% | 2.3M | $165.3M | −98,400 (−4.2%) | June 30, 2026 |
| 13 | Vanguard Equity-Income Inv | 1.02% | 2.0M | $146.7M | — | June 30, 2026 |
| 14 | VanEck Morningstar Wide Moat ETF | 1.01% | 2.0M | $145.2M | — | September 30, 2026 |
| 15 | American Funds SMALLCAP World A | 0.82% | 1.6M | $118.4M | — | September 30, 2026 |
| 16 | Pictet-Water I EUR | 0.65% | 1.3M | $93.8M | −21,818 (−1.7%) | June 30, 2026 |
| 17 | JPMorgan Mid Cap Value L | 0.65% | 1.3M | $93.7M | +162,060 (+14.4%) | August 31, 2026 |
| 18 | Vanguard Dividend Appreciation ETF | 0.57% | 1.1M | $81.3M | −26,325 (−2.3%) | September 30, 2026 |
| 19 | State Street® IndstrlSelSectSPDR®ETF | 0.56% | 1.1M | $80.6M | −1,240 (−0.1%) | September 30, 2026 |
| 20 | MFS Total Return A | 0.55% | 1.1M | $79.2M | −15,984 (−1.4%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
MAS insider transactions
latest 7| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-26 | Heath M Eisman | Sell | $71.92 | 747 | $53,724 |
| 2026-01-29 | Ro Khanna | Sell | $66.23 | — | — |
| 2025-10-07 | Ro Khanna | Sell | $68.57 | — | — |
| 2025-09-29 | Ro Khanna | Sell | $70.00 | — | — |
| 2025-08-26 | Ro Khanna | Buy | $74.35 | — | — |
| 2025-08-22 | Jai Shah | Sell | $76.04 | 82,910 | $6.3M |
| 2025-08-19 | Heath M Eisman | Sell | $74.62 | 2,431 | $181,401 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
MAS shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns MAS
Institutional investors own 106.6% of Masco's shares and insiders 0.23%. The largest holder is BlackRock Inc with 7.97% of the shares (15.7M), as of June 30, 2026. Among the top 20 institutions, 7 added shares and 13 reduced their stake in the latest filings. Short interest is 4.88% of the float, or 3.47 days of average trading volume. The share count fell 41.0% since 2014.
Related: MAS analyst forecast, MAS key metrics, MAS dividend history. See the MAS stock overview for the latest quote and news.
MAS ownership FAQ
Who owns the most Masco stock?
The largest shareholders of Masco are BlackRock Inc (7.97%), Vanguard Capital Management, LLC (6.68%), Vanguard Portfolio Management, LLC (6.20%), State Street Corp (5.44%), Harris Associates L.P. (4.22%).
What percentage of Masco is owned by institutions?
Institutions hold 106.6% of Masco's shares outstanding; insiders hold 0.23%.
Which funds own Masco?
The largest fund holders of Masco are Vanguard MStar Total Stk Mkt Idx Invest (3.25%), Vanguard 500 Index Investor (2.62%), Vanguard Small Cap Index (2.25%), Oakmark Investor (1.67%), Hartford Dividend and Growth Y (1.53%).
What is Masco's short interest?
8.3M shares of Masco were sold short, 4.88% of the float; at the average daily volume it would take 3.47 days to cover.
Are insiders buying or selling Masco?
Of the latest 7 reported insider transactions in Masco (since August 19, 2025), 1 were purchases and 6 were sales.
How many shares of Masco are outstanding?
Masco has 197.2M shares outstanding, of which 196.4M are in the public float.