| Data | Ora | Fonte | Titolo | Simbolo | Compagnia |
| 11/07/2011 | 19:45 | Business Wire | Law Offices of Howard G. Smith Announces Investigation of Arch Chemicals, Inc. | NYSE:ARJ | Arch Chemicals |
| 11/07/2011 | 18:20 | Business Wire | Law Office of Jonathan M. Stein, P.L., Announces Investigation of Arch Chemicals, Inc. | NYSE:ARJ | Arch Chemicals |
| 11/07/2011 | 18:18 | Business Wire | The Law Firm of Levi & Korsinsky, LLP Announces Investigation of Arch Chemicals, Inc. | NYSE:ARJ | Arch Chemicals |
| 11/07/2011 | 18:14 | Business Wire | Faruqi & Faruqi, LLP Is Investigating Arch Chemicals, Inc. | NYSE:ARJ | Arch Chemicals |
| 11/07/2011 | 17:15 | Business Wire | Harwood Feffer LLP Announces Investigation of Arch Chemicals, Inc. | NYSE:ARJ | Arch Chemicals |
| 11/07/2011 | 15:45 | Business Wire | Kendall Law Group Investigates Arch Chemicals, Inc. | NYSE:ARJ | Arch Chemicals |
| 11/07/2011 | 15:18 | Edgar (US Regulatory) | Current report filing (8-K) | NYSE:ARJ | Arch Chemicals |
| 11/07/2011 | 10:43 | Dow Jones News | UPDATE: Lonza Buys Arch Chemicals For $1.2 Billion In Cash | NYSE:ARJ | Arch Chemicals |
| 11/07/2011 | 08:04 | Dow Jones News | Lonza Buys U.S.-Based Arch Chemicals In $1.4 Billion Deal | NYSE:ARJ | Arch Chemicals |
| 11/07/2011 | 07:00 | GlobeNewswire Inc. | Lonza to Acquire Arch Chemicals to Create the World's Leading Microbial Control Business | NYSE:ARJ | Arch Chemicals |
| 28/06/2011 | 14:37 | GlobeNewswire Inc. | Arch Chemicals, Inc. Conference Call Announcement | NYSE:ARJ | Arch Chemicals |
| 18/05/2011 | 15:01 | GlobeNewswire Inc. | Arch Chemicals Closes on New $375 Million Five-Year Revolving Credit Facility | NYSE:ARJ | Arch Chemicals |
| 17/05/2011 | 22:06 | Edgar (US Regulatory) | Securities Registration: Employee Benefit Plan (S-8) | NYSE:ARJ | Arch Chemicals |
| 04/05/2011 | 14:00 | GlobeNewswire Inc. | Arch Chemicals Reports First Quarter 2011 Earnings; Provides Second Quarter and Full Year 2011 Earnings Guidance | NYSE:ARJ | Arch Chemicals |
| 28/04/2011 | 20:09 | GlobeNewswire Inc. | Arch Chemicals, Inc. Declares Quarterly Dividend | NYSE:ARJ | Arch Chemicals |
| 19/04/2011 | 13:15 | Zacks | Sensient Beats, Guides Higher - Analyst Blog | NYSE:ARJ | Arch Chemicals |
| 12/04/2011 | 15:00 | GlobeNewswire Inc. | Arch Treatment Technologies and Osmose, Inc. Announce Licensing Agreement | NYSE:ARJ | Arch Chemicals |
| 11/04/2011 | 15:13 | GlobeNewswire Inc. | Arch Chemicals' Technology Upgrade Will Reduce Operational Costs and Carbon Footprint | NYSE:ARJ | Arch Chemicals |
| 04/04/2011 | 02:00 | Zacks | Arch Chemicals Inc. - Value | NYSE:ARJ | Arch Chemicals |
| 17/03/2011 | 14:13 | Edgar (US Regulatory) | Additional Proxy Soliciting Materials (definitive) (DEFA14A) | NYSE:ARJ | Arch Chemicals |
| 17/03/2011 | 14:12 | Edgar (US Regulatory) | Proxy Statement (definitive) (DEF 14A) | NYSE:ARJ | Arch Chemicals |
| 09/03/2011 | 15:30 | PR Newswire (US) | Zacks.com Featured Expert Kevin Matras Highlights: Arch Chemicals, Cabot, CARBO Ceramics, Deckers Outdoor and Super Micro Comput | NYSE:ARJ | Arch Chemicals |
| 24/02/2011 | 20:02 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | NYSE:ARJ | Arch Chemicals |
| 23/02/2011 | 22:18 | Edgar (US Regulatory) | Annual Report (10-K) | NYSE:ARJ | Arch Chemicals |
| 23/02/2011 | 15:30 | PR Newswire (US) | Zacks.com featured expert Kevin Matras highlights: Aetna, The Andersons, Arch Chemicals, LDK Solar Co and Metalico | NYSE:ARJ | Arch Chemicals |
| 14/02/2011 | 19:36 | Edgar (US Regulatory) | Amended Statement of Ownership (SC 13G/A) | NYSE:ARJ | Arch Chemicals |
| 14/02/2011 | 18:07 | Edgar (US Regulatory) | Statement of Ownership (SC 13G) | NYSE:ARJ | Arch Chemicals |
| 11/02/2011 | 15:49 | PR Newswire (US) | Zacks Releases Four Powerful 'Buy' Stocks: Stoneridge, Ross Stores, Bunge and Arch Chemicals | NYSE:ARJ | Arch Chemicals |
| 03/02/2011 | 13:51 | GlobeNewswire Inc. | Arch Chemicals Reports Fourth Quarter Results and Record Full-Year 2010 Earnings; Provides 2011 Guidance | NYSE:ARJ | Arch Chemicals |
| 07/01/2011 | 15:33 | Edgar (US Regulatory) | Amended Current report filing (8-K/A) | NYSE:ARJ | Arch Chemicals |