As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

  3/2/15  Steffen Christopher J             4          Director²   2:10K  Platinum Underwriters Holdin… Ltd DONNELLEY FIN… File16/FA 
 4/23/14  Steffen Christopher J             4          Director²   2:11K  Platinum Underwriters Holdin… Ltd DONNELLEY FIN… File16/FA 
 2/28/14  Steffen Christopher J             4          Director²   2:5K   W R Grace & Co.                   W R Grace & Co.          
  5/3/13  Steffen Christopher J             4          Director²   2:5K   W R Grace & Co.                   W R Grace & Co.          
 4/25/13  Steffen Christopher J             4          Director²   2:11K  Platinum Underwriters Holdin… Ltd DONNELLEY FIN… File16/FA 
 4/24/12  Steffen Christopher J             4          Director²   2:11K  Platinum Underwriters Holdin… Ltd DONNELLEY FIN… File16/FA 
 4/27/11  Steffen Christopher J             4          Director²   2:11K  Platinum Underwriters Holdin… Ltd DONNELLEY FIN… File16/FA 
 2/11/11  Steffen Christopher J             4          Director²   2:7K   Platinum Underwriters Holdin… Ltd DONNELLEY FIN… File16/FA 
 4/29/10  Steffen Christopher J             4          Director²   2:8K   Platinum Underwriters Holdin… Ltd DONNELLEY FIN… File16/FA 
 4/29/10  Steffen Christopher J             3          Director²   2:6K   Platinum Underwriters Holdin… Ltd DONNELLEY FIN… File16/FA 
 2/16/10  Steffen Christopher J             3          Director²   2:11K  Viasystems Group Inc.             DONNELLEY FIN… File16/FA 
 5/20/09  Steffen Christopher J             4          Director²   2:5K   W R Grace & Co.                   W R Grace & Co.          
 8/30/07  Steffen Christopher J             4          Director²   2:12K  Accelrys, Inc.                    Toppan Merrill/FA        
 11/6/06  Steffen Christopher J             3          Director²   2:4K   W R Grace & Co.                   W R Grace & Co.          

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¹	Filing/Form Types:  /A
	3	Initial Statement of Beneficial Ownership of Securities by an Insider — Form 3 { The Filer is an Insider² of the Issuer }.
	4	Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 { The Filer is an Insider² of the Issuer }.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.