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

 8/25/20  Gamco Investors, Inc. et al       SC 13D/A               1:138K Griffon Corp.                                              
 8/25/20  Gamco Investors, Inc. et al       SC 13D/A               1:153K Ampco Pittsburgh Corp.                                     
 8/25/20  Gamco Investors, Inc. et al       SC 13D/A               1:161K Mueller Industries Inc.                                    

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¹	Filing/Form Type:  /A
	SC 13D	Statement of Acquisition of Beneficial Ownership by an “Active” Investor — Schedule 13D.
	/A	Amendment to, or Amended version of, a previous Filing of this Type.