MAS Institutional Ownership
Top institutional (13F) holders of MAS and 5%+ (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
56
Institutional value
$9.87B
Top holder
BlackRock, Inc.
Top holders
| Holder | Stake | Filed | Value |
|---|---|---|---|
| BlackRock, Inc.holding company | 8.2% | Aug 7, 2026 | $1.28B |
| Vanguard Capital Managementinvestment advisor | 6.8% | Aug 13, 2026 | $1.07B |
| Vanguard Portfolio Managementinvestment advisor | 6.3% | Aug 13, 2026 | $994.31M |
| STATE STREET CORPORATIONholding company | 5.6% | Sep 22, 2026 | $872.78M |
| HARRIS ASSOCIATES L Pinvestment advisor | 4.3% | Aug 14, 2026 | $676.91M |
| JPMORGAN CHASE & COholding company | 2.8% | Aug 12, 2026 | $439.82M |
| Boston Partnersinvestment advisor | 2.4% | Aug 4, 2026 | $374.73M |
| Massachusetts Financial Services Companyinvestment advisor | 2.3% | Aug 3, 2026 | $372.83M |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | 2.7% | Nov 6, 2026 | $354.79M |
| WELLINGTON MANAGEMENT GROUP LLPinvestment advisor | 2.0% | Aug 14, 2026 | $308.36M |
| Invesco Ltd.holding company | 1.9% | Aug 14, 2026 | $291.19M |
| NORTHERN TRUST CORPinvestment advisor | 1.7% | Aug 13, 2026 | $261.39M |
| MORGAN STANLEYholding company | 1.4% | Aug 13, 2026 | $221.36M |
| AQR CAPITAL MANAGEMENT LLCinvestment advisor | 1.2% | Aug 14, 2026 | $187.65M |
| BANK OF AMERICA CORP /DE/holding company | 1.1% | Aug 14, 2026 | $178.42M |
| Norges Bankother | 1.1% | Aug 12, 2026 | $177.55M |
| GOLDMAN SACHS GROUP INCinvestment advisor | 1.1% | Aug 14, 2026 | $176.1M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INCinvestment advisor | 1.0% | Aug 14, 2026 | $160.38M |
| Capital World Investorsinvestment advisor | 0.9% | Aug 12, 2026 | $135.8M |
| FRANKLIN RESOURCES INCinvestment advisor | 0.7% | Aug 13, 2026 | $110.16M |
| Ameriprise Financial, Inc.holding company | 0.7% | Aug 14, 2026 | $106.46M |
| Bank of New York Mellon Corpholding company | 0.8% | Nov 5, 2026 | $104.69M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIPinvestment advisor | 0.7% | Aug 13, 2026 | $103.86M |
| Dimensional Fund Advisors LPinvestment advisor | 0.7% | Nov 4, 2026 | $89.37M |
| Caisse de d??p??t et placement du Qu??becinvestment advisor | 0.5% | Aug 14, 2026 | $70.96M |
5%+ holders
Current stakes of 5% or more from Schedule 13D and 13G filings. A joint filing shows once, under its lead filer.
| Holder | Form | Stake | Filed |
|---|---|---|---|
| Vanguard Capital Managementinvestment advisor | SC 13G | 7.3% | Apr 30, 2026 |
| Vanguard Portfolio Managementinvestment advisor | SC 13G | 6.1% | Apr 29, 2026 |
| STATE STREET CORPORATIONholding company | SC 13G | 5.3% | Aug 7, 2026 |
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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.