INTERDIGITAL INC

Ticker: IDCC CUSIP: 45867G101 Class: EQTY

GAM Holding AG's Holding History (CIK: 0001438848)

Note: Option positions (PUT/CALL) are excluded.

Q1 2019

Shares 5,592 Value ($000) $369 Avg Close $69.51 Range $64.12 - $74.03

Q3 2018

Shares 7,993 Value ($000) $639 Avg Close $81.96 Range $78.65 - $85.85

Q2 2018

Shares 10,945 Value ($000) $885 Avg Close $79.55 Range $71.75 - $85.50

Q1 2018

Shares 7,200 Value ($000) $530 Avg Close $76.57 Range $69.33 - $81.70

Q4 2017

Shares 9,353 Value ($000) $712 Avg Close $74.74 Range $70.60 - $78.10

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	5,592	$369	$69.51	$64.12 - $74.03
Q3 2018	7,993	$639	$81.96	$78.65 - $85.85
Q2 2018	10,945	$885	$79.55	$71.75 - $85.50
Q1 2018	7,200	$530	$76.57	$69.33 - $81.70
Q4 2017	9,353	$712	$74.74	$70.60 - $78.10