MSCI
MSCI · NYSE
Who owns MSCI
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 37.9% of MSCI’s shares.
- Vanguard Capital Management, LLC6.4%
- Vanguard Portfolio Management, LLC5.7%
- BlackRock Institutional Trust Company, N.A.5.3%
- Baron Capital Management, Inc.4.4%
- Next 6 largest institutions16.1%
- All other shareholders62.1%
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Capital Management, LLC | 4.64M | 6.39% |
| Vanguard Portfolio Management, LLC | 4.16M | 5.73% |
| BlackRock Institutional Trust Company, N.A. | 3.86M | 5.32% |
| Baron Capital Management, Inc. | 3.21M | 4.42% |
| State Street Investment Management (US) | 3.19M | 4.39% |
| Fernandez (Henry A) | 2.19M | 3.01% |
| T. Rowe Price Investment Management, Inc. | 2.05M | 2.82% |
| Geode Capital Management, L.L.C. | 1.95M | 2.68% |
| Viking Global Investors LP | 1.16M | 1.60% |
| Principal Global Investors (Equity) | 1.13M | 1.55% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 2.21M | 3.04% |
| Vanguard 500 Index Fund | 1.91M | 2.63% |
| Vanguard Mid-Cap Index Fund | 1.50M | 2.07% |
| Baron Partners Fund | 1.35M | 1.85% |
| iShares Core S&P 500 ETF | 970.77K | 1.34% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders bought $3.25M (8 trades) and sold $6.45M (4 trades) of MSCI on the open market.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Wiechmann Andrew C. | Sale | 450 | $256.50K |
| Taneja Rajat | Buy | 1.79K | $1.00M |
| Yang June | Award | 2 | — |
| Matlock Robin | Award | 6 | — |
| RIEFLER LINDA H | Award | 8 | — |
| Wiechmann Andrew C. | Sale | 450 | $272.05K |
| Taneja Rajat | Award | 42 | — |
| Yang June | Award | 2 | — |
| Matlock Robin | Award | 6 | — |
| RIEFLER LINDA H | Award | 7 | — |
Congressional trades
Disclosed by members of Congress over the last 12 months
| Member | Type | Amount | Traded |
|---|---|---|---|
| Ro KhannaHouse | Purchase | $1K–$15K | Apr 13, 2026 |
| Alan ArmstrongSenator | Purchase | $1K–$15K | Mar 27, 2026 |
Short interest
Settled Sep 30, 2026
- Shares short
- 1.94M
- Days to cover
- 3.12
- % of shares outstanding
- 2.67%
- Average daily volume
- 622.04K
- Change since last report
- +45.3%
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