Announcement for November 12, 2026 at 09:17 PM GMT

THIS IS AN ANNOUNCEMENT FOR THE MSCI GLOBAL STANDARD INDEXES

On November 10, 2026, Anthropic filed an amended S-1 in connection with its Initial Public Offering (IPO) of Class A common shares on the Nasdaq Stock Exchange.

According to the S-1 filing, Anthropic plans to offer 825,000,000 Class A common shares, of which 801,351,354 will be newly issued by the company and 23,648,646 will be sold by existing stockholders, at an expected IPO price between USD 70.00 and USD 78.00 per share.

The final pricing is expected to be disclosed on November 18, 2026 and the first trading day of Anthropic on the Nasdaq Stock Exchange is anticipated for November 19, 2026.

As per Section 8.1.3 of the MSCI Corporate Events Methodology, early inclusions of large IPOs in the MSCI Global Standard Indexes are announced no earlier than the first day of trading and no later than before the opening of the third day of trading in the market where the company has its primary listing.

MSCI intends to apply its standard methodology for large IPOs, as described in Section 6 of the MSCI Corporate Events Methodology. As a reminder, in order for an IPO to qualify for an early inclusion to the Standard Index, a security must meet the index constituent eligibility rules and guidelines described in Section 2.2 of the MSCI GIMI Methodology with the exception of the length of trading and liquidity screens, and must have a company full market capitalization of at least 1.8 times the Interim Market Size-Segment Cutoff and a free float-adjusted market capitalization of at least 1.8 times one-half of the Interim Market Size-Segment Cutoff as of the close of its first or second trading day.

Any over-allotment (also called green shoe) publicly announced as exercised prior to MSCI's announcement on the first or second trading day would be included in the IPO's market capitalization calculations.

As per Section 6 of the MSCI Corporate Events methodology, if the decision is made to include an IPO early, the inclusion will be implemented as of the close of the security's tenth day of trading. However, in certain cases, another date may be chosen for the inclusion to reduce turnover. For example, IPOs for which the effective date of inclusion is either 5 days before the effective date of a regularly scheduled Index Review or 3 days after, will be made effective to coincide with the Index Review.

As a consequence of these rules, if the first trading day were to be November 19, 2026, as expected by Nasdaq, then, subject to Anthropic meeting the criteria for an early inclusion, the inclusion would be effective as of the close of November 30, 2026 (effective December 01, 2026) coinciding with the implementation of the November 2026 Index Review.

For further details on MSCI's approach to large IPOs, please refer to the Q&A available at: https://www.msci.com/indexes/markets-in-motion/megacap-ipos

THIS IS AN ANNOUNCEMENT FOR THE MSCI GLOBAL STANDARD INDEXES

                                     End of announcement.
                                     Further announcements may occur as needed.