FOR EXISTING INVESTOR USE ONLY

UBS FOR EXISTING INVESTOR USE ONLY UBS Financial Services Inc. 1285 Avenue of the Americas New York, NY 10019 Private & Confidential Request ubsccrniTs Important information about your investment in AlphaKeys Millennium Fund, L.L.C. Response regarding distribution of net profits due December 5, 2018 We are sending you this notice and election form (the "Election Form") regarding the AlphaKeys Millennium Fund, L.L.C. (the "AlphaKeys Fund"), which is an investment that you currently hold with UBS. What you need to know • The AlphaKeys Fund is a UBS feeder fund that invests in Millennium USA LP (the "Millennium Fund"), a hedge fund managed by Millennium Management LLC ("Millennium"). • As of December 31, 2018, Millennium will distribute all of the Millennium Fund's estimated 2018 net profits to its limited partners, including the AlphaKeys Fund. All investors in the AlphaKeys Fund will also receive a profit distribution (the "Distribution") and may elect one of two opt