EX-99.77O RULE 10F-3 3 StephensInc10f-3.txt 10F-3 Sub-Item 77O: Transactions Effected Pursuant To Rule 10f-3 Name of Fund: Vanguard Explorer Fund Name of Underwriter or Dealer Purchased From: Goldman, Sachs & Co. Names of Underwriting Syndicate Members: Goldman, Sachs & Co. Citigroup Global Markets Inc. Credit Suisse Securities (USA) LLC Barclays Capital Inc. Deutsche Bank Securities Inc. RBC Capital Markets, LLC Oppenheimer & Co. Inc. Stephens, Inc. SunTrust Robinson Humphrey, Inc. Name of Issuer: FORTERRA INC Title of Security: FORTERRA INC Date of First Offering: 10/20/16 Dollar Amount Purchased: 3,537,000 Number of Shares Purchased: 196,500 Price Per Unit: 18.00 The purchase set out above was effected in compliance with the Fund?s Rule 10f-3 procedures.