Result of Tender Offer

Old Mutual PLC 26 September 2000 OLD MUTUAL PLC Results of Tender Offer for United Asset Management Corporation Approximately 93% of the Outstanding UAM Shares Were Tendered to Old Mutual BOSTON (September 26, 2000) - Old Mutual plc announced today that, pursuant to its tender offer for all outstanding shares of common stock of United Asset Management Corporation (NYSE: UAM), Old Mutual has accepted for payment all shares of UAM common stock validly tendered as of the 5:00 p.m. EDT September 25, 2000 expiration of the tender offer, at a purchase price of $25 net per share. Specifically, Old Mutual accepted for payment 53,270,488 shares of UAM common stock tendered prior to the expiration of the tender offer, representing approximately 93% of the outstanding shares of UAM common stock. These figures do not include additional UAM shares that were tendered by means of guaranteed delivery. Old Mutual intends to complete a 'short form' second-step merger at $25 net per share as soon as practicable, following which UAM will become a wholly-owned subsidiary of Old Mutual. 26 September, 2000 Enquiries: Old Mutual plc, London Tel: + 44 20 7569 0100 James Poole, Director Investor Relations College Hill, London Tel: + 44 20 7457 2020 Nicholas Williams Old Mutual, Cape Town Tel: + 27 21 509 2732 Bruce Allen, Manager, Group Media Communications College Hill, Johannesburg Tel: + 27 11 447 3030 Kim Milnes
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