Acquisition | BIG 5 SPORTING GOODS CORP | 2nd October 2025

Initially announced on June 30, 2025 WORLDWIDE SPORTS GROUP made a cash offer for BIG 5 SPORTING GOODS CORP of USD 1.45 per BIG 5 SPORTING GOODS CORP share held. BIG 5 SPORTING GOODS CORP shareholders approved the Acquisition on September 26, 2025. Pending the completion of customary closing conditions, the Acquisition is expected to be completed on September 30, 2025. Trading in shares of BIG 5 SPORTING GOODS CORP is expected to be halted effective September 30, 2025. In the absence of an active market, the last close price will reflect the Deal Terms of the transaction.

The treatment below will be applied to the following indices:

• BIG 5 SPORTING GOODS CORP will be removed from the Index.
• The weight of BIG 5 SPORTING GOODS CORP (BGFV.OQ) based on its last close price will be distributed pro rata to remaining Index constituents.
• Effective Date (open): 02/10/2025

RAFI Fundamental Select US 1500 NTR Index
RAFI Fundamental Select US 1500 PR Index
RAFI Fundamental Select US 1500 TR Index
Solactive US Extended Broad Market Index (GTR)