X0306 4 2018-07-13 0 0001490286 TORTOISE MLP FUND, INC. NTG 0001444607 THUMMEL ROBERT JOSEPH JR. 11550 ASH STREET SUITE 300 LEAWOOD KS 66211 0 0 0 1 Member of Investment Committee Common Stock 2018-07-13 4 X 0 417 A 1667 D Transferable Subscription Rights (Right to Buy) 2018-07-13 4 X 0 1251 D 2018-06-19 2018-07-18 Common Stock 417 0 D On June 7, 2018, Tortoise MLP Fund, Inc. (the "Fund") announced the terms of a pro rata offering of transferable rights (the "Rights") to holders of the Fund's common shares, as of the record date of June 19, 2018 ("Record Date Shareholder"), entitling the holders of such rights to subscribe for up to an aggregate of 15,802,094 of the Fund's common shares. Record Date Shareholders received one Right for each outstanding whole common share held on the record date. The Rights entitle their holders to purchase one new common share for every three Rights held; however, any Record Date Stockholder who owns fewer than three common shares as of the Record Date will be entitled to subscribe for one common share. The subscription price per common share is an estimated $16.54 (the "basic subscription privilege"). The reporting person exercised his basic subscription privilege in full. The subscription rights will expire if they are not exercised by 5:00 p.m. Eastern time on July 18, 2018 (unless otherwise extended). Robert J. Thummel, Jr. 2018-07-13