Insider Trading & Ownership of GGCP, INC.

Location: Greenwich, CT
Summary: The estimated value of insider holdings of GGCP, INC. is at least $1,662,146 dollars as of 10 Oct 2023. GGCP, INC. is the 10%+ Owner of MachTen, Inc. and owns shares of MachTen, Inc. (MACT) stock worth about $1.31M. GGCP, INC. is the 10%+ Owner of GAMCO INVESTORS, INC. ET AL and owns shares of GAMCO INVESTORS, INC. ET AL (GAMI) stock worth about $356.9K.
Signature: /s/ Douglas R. Jamieson, Attorney-in-fact for GGCP, Inc., GGCP Holdings, LLC, Mario J. Gabelli and LICT Corporation
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Ownership of GGCP, INC.

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
MACT	MachTen, Inc.	10%+ Owner	$1,305,250			10 Oct 2023
GAMI	GAMCO INVESTORS, INC. ET AL	10%+ Owner	$356,896			19 Sep 2022

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.