INTERDIGITAL INC

Ticker: IDCC CUSIP: 45867G101 Class: EQTY

Quartz Partners, LLC's Holding History (CIK: 0001659978)

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

Q4 2025

Shares 20,582 Value ($000) $6,553 Avg Close $353.55 Range $314.37 - $412.60

Q3 2025

Shares 19,610 Value ($000) $6,770 Avg Close $271.66 Range $213.06 - $360.30

Q2 2025

Shares 16,587 Value ($000) $3,719 Avg Close $211.87 Range $180.60 - $237.50

Q1 2025

Shares 18,554 Value ($000) $3,836 Avg Close $201.31 Range $169.58 - $231.97

Q4 2024

Shares 17,958 Value ($000) $3,479 Avg Close $174.85 Range $140.47 - $203.90

Q3 2024

Shares 22,688 Value ($000) $3,213 Avg Close $131.08 Range $115.10 - $143.96

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	20,582	$6,553	$353.55	$314.37 - $412.60
Q3 2025	19,610	$6,770	$271.66	$213.06 - $360.30
Q2 2025	16,587	$3,719	$211.87	$180.60 - $237.50
Q1 2025	18,554	$3,836	$201.31	$169.58 - $231.97
Q4 2024	17,958	$3,479	$174.85	$140.47 - $203.90
Q3 2024	22,688	$3,213	$131.08	$115.10 - $143.96