Transaction in Own Shares

9 May 2016

ISSUED ON BEHALF OF RELX PLC AND RELX NV

Transactions in own shares

RELX PLC announces that today, it purchased (through UBS Limited) 335,000 RELX PLC ordinary shares at a price of 1235.3450p per share. The purchased shares will be held as treasury shares. Following the above purchase, RELX PLC holds 78,692,280 ordinary shares in treasury, and has 1,097,961,489 ordinary shares in issue (excluding treasury shares). Since 4 January 2016 RELX PLC has purchased 14,812,500 shares.

RELX NV announces that today, it purchased (through UBS Limited) 298,300 RELX NV ordinary shares at a price of €14.9008 per share. The purchased shares will be held as treasury shares. Following the above purchase, RELX NV holds 70,441,494 ordinary shares in treasury, and has 978,412,549 ordinary shares in issue (excluding treasury shares). Since 4 January 2016 RELX NV has purchased 13,328,100 shares.