MSCI Inc
Ownership
Ownership Structure
Who owns MSCI Inc (MSCI)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 94.9% of the shares are freely tradable; institutional investors hold 93.9%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 7.90 | 5,740,802 | -2.7 | 03/31/2026 |
| Vanguard Capital Management, LLC | 6.40 | 4,653,076 | +0.0 | 03/31/2026 |
| Vanguard Portfolio Management, LLC | 5.54 | 4,024,536 | +0.0 | 03/31/2026 |
| State Street Corp | 4.28 | 3,114,932 | -2.3 | 03/31/2026 |
| BAMCO Inc | 3.71 | 2,699,389 | -2.0 | 03/31/2026 |
| Morgan Stanley - Brokerage Accounts | 3.09 | 2,244,979 | -9.0 | 03/31/2026 |
| Geode Capital Management, LLC | 2.75 | 1,999,610 | +0.3 | 03/31/2026 |
| T. Rowe Price Investment Management,Inc. | 2.07 | 1,507,193 | -37.3 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 3.04 | 2,211,770 | +0.3 | 07/31/2026 |
| Vanguard 500 Index Investor | 2.63 | 1,911,506 | +1.1 | 07/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Riefler Linda H | Director | 20,998 | 11,538,401 $ | Aug 28, 2026 | direct |
| Taneja Rajat | Director | 5,404 | 2,969,498 $ | Sep 2, 2026 | direct |
| Matlock Robin | Director | 2,037 | 1,119,332 $ | Aug 28, 2026 | direct |
| Yang June | Director | 906 | 497,847 $ | Aug 28, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 2, 2026 | Taneja Rajat | Director | Buy | 1,786 | 560.00 | 1,000,160 |
| Aug 28, 2026 | Yang June | Director | Other | 2 | 0.00 | – |
| Aug 28, 2026 | Matlock Robin | Director | Other | 6 | 0.00 | – |
| Aug 28, 2026 | Riefler Linda H | Director | Other | 8 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: September 17, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.