Mark Massey - AltaRock Partners 13F Activity & Position Changes (Q4 2016)

According to the SEC 13F filed on Aug 17, 2026, the AltaRock Partners portfolio showed several notable changes in holdings as of quarter-end Dec 31, 2016. The activity included new positions, additions to existing holdings, reductions, and complete exits, providing a clear view of how the portfolio evolved during the quarter.

During Q4 2016, the filing reported:

New Buys - None reported

Increases - Moody's Corporation, Transdigm Group Incorporated

Reductions - Charter Communications, Inc., Westinghouse Air Brake Technolo

Complete Exits - None reported

These updates highlight how the portfolio adjusted across different sectors and market conditions, offering insights into allocation shifts and investment trends.

Date	Symbol	Name	Type	Change Qty	% Change	Value	Remaining
Q4 2016	CHTR Charter Communications, Inc.	Charter Communications, Inc.	Sell	-66,300	-12.1%	$138.67K	481,637
Q4 2016	MCO Moody's Corporation	Moody's Corporation	Buy	+113,336	+11.7%	$101.66K	1,078,336
Q4 2016	TDG Transdigm Group Incorporated	Transdigm Group Incorporated	Buy	+152,356	+34.7%	$147.26K	591,504
Q4 2016	WAB Westinghouse Air Brake Technolo	Westinghouse Air Brake Technolo	Sell	-150,000	-17.9%	$57.27K	689,826