MAS Institutional Ownership
Top institutional (13F) holders of MAS and activist (13D/G) positions, sourced from SEC EDGAR.
Institutional owners
43
Institutional value
$8.72B
Top holder
BlackRock, Inc.
Top holders
| Holder | Stake | Filed | Value |
|---|---|---|---|
| BlackRock, Inc.holding company | 7.9% | Aug 7, 2026 | $1.28B |
| Vanguard Capital Managementinvestment advisor | 6.6% | Aug 13, 2026 | $1.07B |
| Vanguard Portfolio Managementinvestment advisor | 6.1% | Aug 13, 2026 | $994.31M |
| STATE STREET CORPORATIONinvestment advisor | 5.4% | Aug 7, 2026 | $872.78M |
| JPMORGAN CHASE & COinvestment advisor | 2.7% | Aug 12, 2026 | $439.82M |
| GEODE CAPITAL MANAGEMENT, LLCinvestment advisor | 2.7% | Aug 12, 2026 | $433.58M |
| Massachusetts Financial Services Companyinvestment advisor | 2.3% | Aug 3, 2026 | $372.83M |
| WELLINGTON MANAGEMENT GROUP LLPinvestment advisor | 1.9% | Aug 14, 2026 | $308.36M |
| Invesco Ltd.investment advisor | 1.8% | Aug 14, 2026 | $291.19M |
| NORTHERN TRUST CORPinvestment advisor | 1.6% | Aug 13, 2026 | $261.39M |
| MORGAN STANLEYinvestment advisor | 1.4% | Aug 13, 2026 | $221.36M |
| AQR CAPITAL MANAGEMENT LLCinvestment advisor | 1.2% | Aug 14, 2026 | $187.65M |
| BANK OF AMERICA CORP /DE/investment advisor | 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 | $176.10M |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INCinvestment advisor | 1.0% | Aug 14, 2026 | $160.38M |
| Bank of New York Mellon Corpholding company | 1.0% | Aug 6, 2026 | $156.67M |
| Capital World Investorsinvestment advisor | 0.8% | Aug 12, 2026 | $135.80M |
| FRANKLIN RESOURCES INCinvestment advisor | 0.7% | Aug 13, 2026 | $110.16M |
| Ameriprise Financial, Inc.holding company | 0.7% | Aug 14, 2026 | $106.46M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIPinvestment advisor | 0.6% | Aug 13, 2026 | $103.86M |
| Dimensional Fund Advisors LPinvestment advisor | 0.6% | Aug 11, 2026 | $102.18M |
| UBS Group AGinvestment advisor | 0.4% | Aug 13, 2026 | $64.73M |
| CITIGROUP INCinvestment advisor | 0.4% | Aug 3, 2026 | $56.95M |
| ROYAL BANK OF CANADAinvestment advisor | 0.3% | Aug 14, 2026 | $56.36M |
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Source: SEC EDGAR Schedule 13D / 13G and 13F filings.