| 12/27/2005 | Ceradyne, Inc. Receives $9.3 Million Ceramic Body Armor Order for U.S. Marines |
| 12/22/2005 | Ceradyne Announces Exercise of Over-Allotment Options for 270,000 Shares of Common Stock and $11 Million of Senior Subordinated Convertible Notes |
| 12/14/2005 | Ceradyne Announces Pricing of Concurrent Public Offerings 1,800,000 Shares of Common Stock and $110 Million of Senior Subordinated Convertible Notes |
| 12/1/2005 | Ceradyne Announces Concurrent Public Offerings of Common Stock and Senior Subordinated Convertible Notes |
| 11/7/2005 | Ceradyne, Inc. Receives $6.0 Million Ceramic Body Armor Order for U.S. Marines |
| 11/4/2005 | Ceradyne, Inc. to Participate in AeA Classic Financial Conference |
| 10/31/2005 | Ceradyne, Inc. Receives Approximately $17.8 Million Ceramic Body Armor Order for U.S. Air Force |
| 10/27/2005 | CERADYNE, INC. REPORTS 2005 THIRD QUARTER, NINE-MONTH RESULTS Sales and Net Income Record Results Continue |
| 9/30/2005 | CERADYNE, INC. RECEIVES $8.3 MILLION CERAMIC BODY ARMOR ORDER |
| 9/30/2005 | CERADYNE, INC. RECEIVES $9.1 MILLION CERAMIC BODY ARMOR ORDERS |
| 9/20/2005 | Ceradyne, Inc. Receives $14.6 Million Orders for Ceramic Armor for Elite U.S. Troops and U.S. Marines |
| 9/6/2005 | Semicon to Attend Tri-Service Vacuum Electron Device Workshop in Albuquerque, New Mexico on September 13-15, 2005 |
| 8/24/2005 | CERADYNE, INC. RECEIVES $5.6 MILLION ARMOR ORDERS For U.S. Navy Helicopters and New Military Programs |
| 8/24/2005 | CERADYNE, INC. RANKED THIRD IN FORTUNE 100 FASTEST-GROWING COMPANIES FOR 2005 Three-Year Revenue and Profit Growth, Stock Total Return |
| 8/11/2005 | Ceradyne, Inc. Announces Grand Opening of Kentucky Ceramic Armor |
| 7/28/2005 | CERADYNE, INC. REPORTS SECOND QUARTER AND SIX-MONTH 2005 RESULTS Sales, Net Income, New Orders and Backlog for Quarter, Six Months Reach Record Levels |
| 7/15/2005 | Ceradyne, Inc. to Release Second-Quarter 2005 Results on July 28, 2005 |
| 6/28/2005 | CERADYNE, INC. RECEIVES $75.5 MILLION CERAMIC BODY ARMOR CONTRACT - Deliveries Scheduled from September 2005 through January 2006 |
| 6/16/2005 | Ceradyne, Inc. Chief Executive Joel Moskowitz to Speak at Nasdaq International Investor Forum - Europe's Top Instutional Investors to Attend London Event |
| 6/8/2005 | Ceradyne, Inc. Appoints Gerk Vice President of Operations |
| 5/26/2005 | CERADYNE, INC. RANKED FIRST BY BUSINESS 2.0 Among 100 Fastest-Growing Technology Companies in U.S. |
| 5/26/2005 | Ceradyne, Inc. Chairman and CEO Joel Moskowitz Receives Honorary Doctorate Degree |
| 4/28/2005 | Ceradyne, Inc. Reports First Quarter 2005 Results |
| 4/21/2005 | Ceradyne, Inc. Receives $8.5 Million Ceramic Body Armor Order; Ceramic Armor Systems for Elite Military Personnel |
| 4/21/2005 | Ceradyne, Inc. Receives Approximately $1.1 Million Ceramic Body Armor Order |
| 4/14/2005 | Ceradyne, Inc. to Release First-Quarter 2005 Results on April 28, 2005 |
| 3/4/2005 | CERADYNE, INC. REPORTS 2004 FOURTH QUARTER AND 12-MONTH RESULTS Sales, Earnings, New Orders, and Backlog Reach Record Levels for Quarter, Year |
| 3/3/2005 | Ceradyne, Inc. Appoints David Reed President of North American Operations |
| 3/3/2005 | Ceradyne, Inc. Appoints Michael Kraft Vice President Sales, Marketing, Business Development To Drive Diversification, Growth; Focus on Non-Defense (Industrial) Business |
| 2/28/2005 | Ceradyne, Inc. at Friedman Billings Ramsey 2005 Washington Conference |
| 2/25/2005 | Ceradyne, Inc. to Release 2004 Results on March 4, 2005 |
| 2/17/2005 | Ceradyne, Inc. Receives $5.3 Million Ceramic Body Armor Order |
| 2/17/2005 | Ceradyne Webcast from the Smith Barney Citigroup's Small & Mid-Cap Conference, Feb. 17, Las Vegas |
| 2/11/2005 | Ceradyne, Inc. Receives First Navy Ship Armor Order |
| 1/25/2005 | Ceradyne, Inc. Reports Preliminary Q4, 12-Month 2004 Results |
| 1/11/2005 | Ceradyne Webcast at the Needham 7th Annual Growth Conference |
