INTERDIGITAL INC

Ticker: IDCC CUSIP: 45867G101 Class: EQTY

NEW YORK STATE TEACHERS RETIREMENT SYSTEM's Holding History (CIK: 0000314969)

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

Q4 2025

Shares 31,488 Value ($000) $10 Avg Close $353.55 Range $314.37 - $412.60

Q3 2025

Shares 29,890 Value ($000) $10 Avg Close $271.66 Range $213.06 - $360.30

Q2 2025

Shares 30,090 Value ($000) $7 Avg Close $211.87 Range $180.60 - $237.50

Q1 2025

Shares 29,990 Value ($000) $6 Avg Close $201.31 Range $169.58 - $231.97

Q4 2024

Shares 30,090 Value ($000) $6 Avg Close $174.85 Range $140.47 - $203.90

Q3 2024

Shares 32,543 Value ($000) $5 Avg Close $131.08 Range $115.10 - $143.96

Q2 2024

Shares 27,806 Value ($000) $3 Avg Close $106.87 Range $95.33 - $119.10

Q1 2024

Shares 30,592 Value ($000) $3 Avg Close $105.70 Range $100.55 - $119.86

Q4 2023

Shares 28,896 Value ($000) $3 Avg Close $92.54 Range $74.65 - $111.79

Q3 2023

Shares 28,634 Value ($000) $2 Avg Close $86.92 Range $79.20 - $98.69

Q2 2023

Shares 28,038 Value ($000) $3 Avg Close $80.98 Range $66.82 - $97.62

Q1 2023

Shares 26,705 Value ($000) $2 Avg Close $69.61 Range $52.13 - $75.74

Q4 2022

Shares 28,105 Value ($000) $1 Avg Close $48.77 Range $43.87 - $51.48

Q3 2022

Shares 28,105 Value ($000) $1,136 Avg Close $53.92 Range $40.23 - $64.00

Q2 2022

Shares 28,105 Value ($000) $1,709 Avg Close $61.35 Range $56.13 - $67.14

Q1 2022

Shares 28,105 Value ($000) $1,793 Avg Close $66.45 Range $61.36 - $73.97

Q4 2021

Shares 28,005 Value ($000) $2,006 Avg Close $69.71 Range $65.79 - $74.27

Q3 2021

Shares 27,905 Value ($000) $1,893 Avg Close $69.30 Range $63.34 - $75.25

Q2 2021

Shares 27,905 Value ($000) $2,038 Avg Close $73.91 Range $63.74 - $85.75

Q1 2021

Shares 18,700 Value ($000) $1,187 Avg Close $65.36 Range $59.93 - $69.02

Q4 2020

Shares 18,700 Value ($000) $1,135 Avg Close $59.88 Range $54.37 - $63.74

Q3 2020

Shares 18,700 Value ($000) $1,067 Avg Close $60.07 Range $54.62 - $67.06

Q2 2020

Shares 18,700 Value ($000) $1,059 Avg Close $53.16 Range $41.61 - $62.66

Q1 2020

Shares 18,700 Value ($000) $835 Avg Close $52.66 Range $31.04 - $64.22

Q4 2019

Shares 18,700 Value ($000) $1,019 Avg Close $55.25 Range $49.84 - $60.33

Q3 2019

Shares 18,700 Value ($000) $981 Avg Close $56.51 Range $47.02 - $66.95

Q2 2019

Shares 18,700 Value ($000) $1,204 Avg Close $66.69 Range $62.43 - $72.66

Q1 2019

Shares 18,700 Value ($000) $1,234 Avg Close $69.51 Range $64.12 - $74.03

Q4 2018

Shares 18,700 Value ($000) $1,242 Avg Close $72.85 Range $62.34 - $80.75

Q3 2018

Shares 18,700 Value ($000) $1,496 Avg Close $81.96 Range $78.65 - $85.85

Q2 2018

Shares 18,700 Value ($000) $1,513 Avg Close $79.55 Range $71.75 - $85.50

Q1 2018

Shares 18,700 Value ($000) $1,376 Avg Close $76.57 Range $69.33 - $81.70

Q4 2017

Shares 18,700 Value ($000) $1,424 Avg Close $74.74 Range $70.60 - $78.10

Q3 2017

Shares 18,700 Value ($000) $1,379 Avg Close $73.19 Range $67.55 - $81.85

Q2 2017

Shares 22,800 Value ($000) $1,762 Avg Close $83.80 Range $77.20 - $93.00

Q1 2017

Shares 29,100 Value ($000) $2,511 Avg Close $89.86 Range $83.15 - $102.30

Q4 2016

Shares 22,400 Value ($000) $2,046 Avg Close $80.20 Range $68.10 - $98.00

Q3 2016

Shares 22,400 Value ($000) $1,774 Avg Close $66.77 Range $52.33 - $79.92

Q2 2016

Shares 27,000 Value ($000) $1,503 Avg Close $56.52 Range $51.97 - $59.83

Q1 2016

Shares 27,100 Value ($000) $1,508 Avg Close $48.28 Range $41.01 - $55.85

Q4 2015

Shares 30,000 Value ($000) $1,471 Avg Close $50.76 Range $46.78 - $54.95

Q3 2015

Shares 33,500 Value ($000) $1,695 Avg Close $51.62 Range $44.28 - $57.77

Q2 2015

Shares 33,500 Value ($000) $1,906 Avg Close $55.81 Range $49.57 - $60.69

Q1 2015

Shares 31,000 Value ($000) $1,573 Avg Close $51.89 Range $47.76 - $56.27

Q4 2014

Shares 8,800 Value ($000) $466 Avg Close $48.18 Range $38.64 - $54.90

Q3 2014

Shares 3,400 Value ($000) $135 Avg Close $44.00 Range $39.40 - $48.93

Q2 2014

Shares 2,800 Value ($000) $134 Avg Close $38.65 Range $31.45 - $49.10

Q1 2014

Shares 2,800 Value ($000) $93 Avg Close $29.77 Range $26.25 - $33.60

Q4 2013

Shares 2,800 Value ($000) $83 Avg Close $33.88 Range $28.53 - $39.87

Q3 2013

Shares 9,900 Value ($000) $370 Avg Close $37.73 Range $35.02 - $41.24

Q2 2013

Shares 4,500 Value ($000) $201 Avg Close $44.80 Range $38.60 - $48.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	31,488	$10	$353.55	$314.37 - $412.60
Q3 2025	29,890	$10	$271.66	$213.06 - $360.30
Q2 2025	30,090	$7	$211.87	$180.60 - $237.50
Q1 2025	29,990	$6	$201.31	$169.58 - $231.97
Q4 2024	30,090	$6	$174.85	$140.47 - $203.90
Q3 2024	32,543	$5	$131.08	$115.10 - $143.96
Q2 2024	27,806	$3	$106.87	$95.33 - $119.10
Q1 2024	30,592	$3	$105.70	$100.55 - $119.86
Q4 2023	28,896	$3	$92.54	$74.65 - $111.79
Q3 2023	28,634	$2	$86.92	$79.20 - $98.69
Q2 2023	28,038	$3	$80.98	$66.82 - $97.62
Q1 2023	26,705	$2	$69.61	$52.13 - $75.74
Q4 2022	28,105	$1	$48.77	$43.87 - $51.48
Q3 2022	28,105	$1,136	$53.92	$40.23 - $64.00
Q2 2022	28,105	$1,709	$61.35	$56.13 - $67.14
Q1 2022	28,105	$1,793	$66.45	$61.36 - $73.97
Q4 2021	28,005	$2,006	$69.71	$65.79 - $74.27
Q3 2021	27,905	$1,893	$69.30	$63.34 - $75.25
Q2 2021	27,905	$2,038	$73.91	$63.74 - $85.75
Q1 2021	18,700	$1,187	$65.36	$59.93 - $69.02
Q4 2020	18,700	$1,135	$59.88	$54.37 - $63.74
Q3 2020	18,700	$1,067	$60.07	$54.62 - $67.06
Q2 2020	18,700	$1,059	$53.16	$41.61 - $62.66
Q1 2020	18,700	$835	$52.66	$31.04 - $64.22
Q4 2019	18,700	$1,019	$55.25	$49.84 - $60.33
Q3 2019	18,700	$981	$56.51	$47.02 - $66.95
Q2 2019	18,700	$1,204	$66.69	$62.43 - $72.66
Q1 2019	18,700	$1,234	$69.51	$64.12 - $74.03
Q4 2018	18,700	$1,242	$72.85	$62.34 - $80.75
Q3 2018	18,700	$1,496	$81.96	$78.65 - $85.85
Q2 2018	18,700	$1,513	$79.55	$71.75 - $85.50
Q1 2018	18,700	$1,376	$76.57	$69.33 - $81.70
Q4 2017	18,700	$1,424	$74.74	$70.60 - $78.10
Q3 2017	18,700	$1,379	$73.19	$67.55 - $81.85
Q2 2017	22,800	$1,762	$83.80	$77.20 - $93.00
Q1 2017	29,100	$2,511	$89.86	$83.15 - $102.30
Q4 2016	22,400	$2,046	$80.20	$68.10 - $98.00
Q3 2016	22,400	$1,774	$66.77	$52.33 - $79.92
Q2 2016	27,000	$1,503	$56.52	$51.97 - $59.83
Q1 2016	27,100	$1,508	$48.28	$41.01 - $55.85
Q4 2015	30,000	$1,471	$50.76	$46.78 - $54.95
Q3 2015	33,500	$1,695	$51.62	$44.28 - $57.77
Q2 2015	33,500	$1,906	$55.81	$49.57 - $60.69
Q1 2015	31,000	$1,573	$51.89	$47.76 - $56.27
Q4 2014	8,800	$466	$48.18	$38.64 - $54.90
Q3 2014	3,400	$135	$44.00	$39.40 - $48.93
Q2 2014	2,800	$134	$38.65	$31.45 - $49.10
Q1 2014	2,800	$93	$29.77	$26.25 - $33.60
Q4 2013	2,800	$83	$33.88	$28.53 - $39.87
Q3 2013	9,900	$370	$37.73	$35.02 - $41.24
Q2 2013	4,500	$201	$44.80	$38.60 - $48.60