Announcement Össur hf. No.20/2010 Auðkenni útgefanda/Trade ticker: OSSR Nafn útgefanda/Issuer: Össur hf. Dagsetning tilkynningar/Date of announcement: 12 August 2010 Nafn fruminnherja/Name primary insider: Jón Sigurðsson Tengsl fruminnherja við útgefanda/Insider's relation with the issuer: President & CEO Dagsetning viðskipta/Date of transaction: 12 August 2010 Tímasetning viðskipta/Time of transaction: Tegund fjármálagernings/Type of financial instrument: Equities Kaup eða sala/Buy or Sell: Buy Fjöldi hluta/Number of shares: 35,000 Verð pr. Hlut/Price per share: 199 ISK Fjöldi hluta í eigu fruminnherja eftir viðskipti/Primary insider's holdings after the transaction: 131,934 Fjöldi hluta sem fruminnherji á kauprétt að/Primary insider's option holdings after the transaction: 1,250,000 Fjöldi hluta fjárhagslega tengdra aðila eftir viðskipti/Related parties' holdings after the transaction: 3,234 Dagsetning lokauppgjörs*/Date of settlement*: Athugasemdir*/Comments*: [HUG#1437687]