Share Incentive Plan

ABCAM PLC

("Abcam" or "the Company")

Director/PDMR Dealings: Share Incentive Plan

Cambridge, UK: Abcam plc (AIM: ABC), the rapidly growing bioscience company that markets antibodies via its own online catalogue, announces that on 2 December 2010 the Company was notified of the following transactions under the Abcam plc Share Incentive Plan ("the SIP") to the benefit of the Executive Directors and PDMRs:

The price per ordinary share was determined with reference to the closing share price on 1 December 2010.

The risk of forfeiture attached to these Free Shares will normally be removed on the third anniversary of the award subject to continued employment.

No consideration was paid by the above grantees for the award of the Free Shares and no consideration is due on the release of these Free Shares.

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About Abcam plc

Abcam is a producer and distributor of research-grade antibodies and related products, headquartered in Cambridge, United Kingdom, with US offices in Cambridge, Massachusetts, and San Francisco, California, and Far East offices in Tokyo and Hong Kong. Abcam was admitted to AIM in November 2005 and trades under the ticker symbol ABC. The Company produces and distributes its own and third-party products to academic and commercial users throughout the world. Product ordering is available through the Company's website www.abcam.com, where customers are also able to access up-to-date and detailed technical product data sheets. All products are sold under the Abcam brand name and the Company's vision is to build the world's largest online resource of high-quality and commercially viable antibodies. Abcam now has an online catalogue of over 68,000 products, most of which are antibodies, from over 250 suppliers and employs 270 staff.