INTERDIGITAL INC

Ticker: IDCC CUSIP: 45867G101 Class: EQTY

State of Alaska, Department of Revenue's Holding History (CIK: 0001370102)

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

Q4 2025

Shares 13,109 Value ($000) $4 Avg Close $353.55 Range $314.37 - $412.60

Q3 2025

Shares 12,983 Value ($000) $4 Avg Close $271.66 Range $213.06 - $360.30

Q2 2025

Shares 15,447 Value ($000) $3 Avg Close $211.87 Range $180.60 - $237.50

Q1 2025

Shares 14,232 Value ($000) $3 Avg Close $201.31 Range $169.58 - $231.97

Q4 2024

Shares 14,339 Value ($000) $3 Avg Close $174.85 Range $140.47 - $203.90

Q3 2024

Shares 14,401 Value ($000) $2 Avg Close $131.08 Range $115.10 - $143.96

Q2 2024

Shares 14,816 Value ($000) $2 Avg Close $106.87 Range $95.33 - $119.10

Q1 2024

Shares 15,658 Value ($000) $2 Avg Close $105.70 Range $100.55 - $119.86

Q4 2023

Shares 15,813 Value ($000) $2 Avg Close $92.54 Range $74.65 - $111.79

Q3 2023

Shares 16,442 Value ($000) $1 Avg Close $86.92 Range $79.20 - $98.69

Q2 2023

Shares 17,596 Value ($000) $2 Avg Close $80.98 Range $66.82 - $97.62

Q1 2023

Shares 18,436 Value ($000) $1 Avg Close $69.61 Range $52.13 - $75.74

Q4 2022

Shares 20,655 Value ($000) $1 Avg Close $48.77 Range $43.87 - $51.48

Q3 2022

Shares 20,533 Value ($000) $829 Avg Close $53.92 Range $40.23 - $64.00

Q2 2022

Shares 23,349 Value ($000) $1,419 Avg Close $61.35 Range $56.13 - $67.14

Q1 2022

Shares 21,344 Value ($000) $1,361 Avg Close $66.45 Range $61.36 - $73.97

Q4 2021

Shares 21,724 Value ($000) $1,556 Avg Close $69.71 Range $65.79 - $74.27

Q3 2021

Shares 22,399 Value ($000) $1,519 Avg Close $69.30 Range $63.34 - $75.25

Q2 2021

Shares 21,290 Value ($000) $1,554 Avg Close $73.91 Range $63.74 - $85.75

Q1 2021

Shares 4,838 Value ($000) $306 Avg Close $65.36 Range $59.93 - $69.02

Q4 2020

Shares 5,006 Value ($000) $303 Avg Close $59.88 Range $54.37 - $63.74

Q3 2020

Shares 5,251 Value ($000) $299 Avg Close $60.07 Range $54.62 - $67.06

Q2 2020

Shares 5,469 Value ($000) $309 Avg Close $53.16 Range $41.61 - $62.66

Q1 2020

Shares 5,354 Value ($000) $238 Avg Close $52.66 Range $31.04 - $64.22

Q4 2019

Shares 5,121 Value ($000) $279 Avg Close $55.25 Range $49.84 - $60.33

Q3 2019

Shares 5,536 Value ($000) $290 Avg Close $56.51 Range $47.02 - $66.95

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	13,109	$4	$353.55	$314.37 - $412.60
Q3 2025	12,983	$4	$271.66	$213.06 - $360.30
Q2 2025	15,447	$3	$211.87	$180.60 - $237.50
Q1 2025	14,232	$3	$201.31	$169.58 - $231.97
Q4 2024	14,339	$3	$174.85	$140.47 - $203.90
Q3 2024	14,401	$2	$131.08	$115.10 - $143.96
Q2 2024	14,816	$2	$106.87	$95.33 - $119.10
Q1 2024	15,658	$2	$105.70	$100.55 - $119.86
Q4 2023	15,813	$2	$92.54	$74.65 - $111.79
Q3 2023	16,442	$1	$86.92	$79.20 - $98.69
Q2 2023	17,596	$2	$80.98	$66.82 - $97.62
Q1 2023	18,436	$1	$69.61	$52.13 - $75.74
Q4 2022	20,655	$1	$48.77	$43.87 - $51.48
Q3 2022	20,533	$829	$53.92	$40.23 - $64.00
Q2 2022	23,349	$1,419	$61.35	$56.13 - $67.14
Q1 2022	21,344	$1,361	$66.45	$61.36 - $73.97
Q4 2021	21,724	$1,556	$69.71	$65.79 - $74.27
Q3 2021	22,399	$1,519	$69.30	$63.34 - $75.25
Q2 2021	21,290	$1,554	$73.91	$63.74 - $85.75
Q1 2021	4,838	$306	$65.36	$59.93 - $69.02
Q4 2020	5,006	$303	$59.88	$54.37 - $63.74
Q3 2020	5,251	$299	$60.07	$54.62 - $67.06
Q2 2020	5,469	$309	$53.16	$41.61 - $62.66
Q1 2020	5,354	$238	$52.66	$31.04 - $64.22
Q4 2019	5,121	$279	$55.25	$49.84 - $60.33
Q3 2019	5,536	$290	$56.51	$47.02 - $66.95