Mark Massey - AltaRock Partners 13F Activity & Position Changes (Q3 2015)

As of Sep 30, 2015, the AltaRock Partners portfolio activity showed several notable changes in holdings, according to the latest SEC 13F filing reported on May 15, 2026. 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 Q3 2015, the filing reported:

New Buys - None reported

Increases - Mastercard Incorporated, Moody's Corporation, Transdigm Group Incorporated

Reductions - Interactive Brokers Group, Inc., Visa Inc.

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
Q3 2015	IBKR Interactive Brokers Group, Inc.	Interactive Brokers Group, Inc.	Sell	-5,900	-17.8%	$1.07K	27,201
Q3 2015	MA Mastercard Incorporated	Mastercard Incorporated	Buy	+8,300	+2.1%	$36.38K	403,690
Q3 2015	MCO Moody's Corporation	Moody's Corporation	Buy	+267,595	+57.3%	$72.13K	734,510
Q3 2015	TDG Transdigm Group Incorporated	Transdigm Group Incorporated	Buy	+186,242	+43.0%	$131.66K	619,863
Q3 2015	V Visa Inc.	Visa Inc.	Sell	-29,660	-10.6%	$17.44K	250,416