INTERDIGITAL INC

Ticker: IDCC CUSIP: 45867G101 Class: EQTY

FIRST TRUST ADVISORS LP's Holding History (CIK: 0001125816)

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

Q4 2025

Shares 416,062 Value ($000) $132,466 Avg Close $353.55 Range $314.37 - $412.60

Q3 2025

Shares 453,773 Value ($000) $156,656 Avg Close $271.66 Range $213.06 - $360.30

Q2 2025

Shares 477,853 Value ($000) $107,149 Avg Close $211.87 Range $180.60 - $237.50

Q1 2025

Shares 535,986 Value ($000) $110,815 Avg Close $201.31 Range $169.58 - $231.97

Q4 2024

Shares 103,295 Value ($000) $20,010 Avg Close $174.85 Range $140.47 - $203.90

Q3 2024

Shares 90,491 Value ($000) $12,816 Avg Close $131.08 Range $115.10 - $143.96

Q2 2024

Shares 86,504 Value ($000) $10,083 Avg Close $106.87 Range $95.33 - $119.10

Q1 2024

Shares 88,218 Value ($000) $9,392 Avg Close $105.70 Range $100.55 - $119.86

Q4 2023

Shares 88,990 Value ($000) $9,659 Avg Close $92.54 Range $74.65 - $111.79

Q3 2023

Shares 52,385 Value ($000) $4,203 Avg Close $86.92 Range $79.20 - $98.69

Q2 2023

Shares 62,313 Value ($000) $6,016 Avg Close $80.98 Range $66.82 - $97.62

Q1 2023

Shares 73,926 Value ($000) $5,389 Avg Close $69.61 Range $52.13 - $75.74

Q4 2022

Shares 77,939 Value ($000) $3,856 Avg Close $48.77 Range $43.87 - $51.48

Q3 2022

Shares 91,432 Value ($000) $3,696 Avg Close $53.92 Range $40.23 - $64.00

Q2 2022

Shares 68,086 Value ($000) $4,140 Avg Close $61.35 Range $56.13 - $67.14

Q1 2022

Shares 42,695 Value ($000) $2,724 Avg Close $66.45 Range $61.36 - $73.97

Q4 2021

Shares 31,354 Value ($000) $2,246 Avg Close $69.71 Range $65.79 - $74.27

Q3 2021

Shares 58,341 Value ($000) $3,957 Avg Close $69.30 Range $63.34 - $75.25

Q2 2021

Shares 35,232 Value ($000) $2,573 Avg Close $73.91 Range $63.74 - $85.75

Q1 2021

Shares 53,213 Value ($000) $3,378 Avg Close $65.36 Range $59.93 - $69.02

Q4 2020

Shares 70,788 Value ($000) $4,295 Avg Close $59.88 Range $54.37 - $63.74

Q3 2020

Shares 26,050 Value ($000) $1,486 Avg Close $60.07 Range $54.62 - $67.06

Q2 2020

Shares 15,021 Value ($000) $851 Avg Close $53.16 Range $41.61 - $62.66

Q1 2020

Shares 32,657 Value ($000) $1,457 Avg Close $52.66 Range $31.04 - $64.22

Q4 2019

Shares 33,174 Value ($000) $1,808 Avg Close $55.25 Range $49.84 - $60.33

Q3 2019

Shares 30,404 Value ($000) $1,595 Avg Close $56.51 Range $47.02 - $66.95

Q2 2019

Shares 50,855 Value ($000) $3,275 Avg Close $66.69 Range $62.43 - $72.66

Q1 2019

Shares 56,309 Value ($000) $3,715 Avg Close $69.51 Range $64.12 - $74.03

Q4 2018

Shares 72,106 Value ($000) $4,790 Avg Close $72.85 Range $62.34 - $80.75

Q3 2018

Shares 68,533 Value ($000) $5,483 Avg Close $81.96 Range $78.65 - $85.85

Q2 2018

Shares 118,428 Value ($000) $9,581 Avg Close $79.55 Range $71.75 - $85.50

Q1 2018

Shares 87,570 Value ($000) $6,445 Avg Close $76.57 Range $69.33 - $81.70

Q4 2017

Shares 64,222 Value ($000) $4,891 Avg Close $74.74 Range $70.60 - $78.10

Q3 2017

Shares 62,460 Value ($000) $4,606 Avg Close $73.19 Range $67.55 - $81.85

Q2 2017

Shares 39,304 Value ($000) $3,038 Avg Close $83.80 Range $77.20 - $93.00

Q1 2017

Shares 44,179 Value ($000) $3,813 Avg Close $89.86 Range $83.15 - $102.30

Q4 2016

Shares 46,826 Value ($000) $4,278 Avg Close $80.20 Range $68.10 - $98.00

Q3 2016

Shares 14,364 Value ($000) $1,138 Avg Close $66.77 Range $52.33 - $79.92

Q2 2016

Shares 29,446 Value ($000) $1,640 Avg Close $56.52 Range $51.97 - $59.83

Q1 2016

Shares 40,565 Value ($000) $2,257 Avg Close $48.28 Range $41.01 - $55.85

Q4 2015

Shares 58,058 Value ($000) $2,847 Avg Close $50.76 Range $46.78 - $54.95

Q3 2015

Shares 111,657 Value ($000) $5,650 Avg Close $51.62 Range $44.28 - $57.77

Q2 2015

Shares 97,582 Value ($000) $5,551 Avg Close $55.81 Range $49.57 - $60.69

Q1 2015

Shares 130,437 Value ($000) $6,618 Avg Close $51.89 Range $47.76 - $56.27

Q4 2014

Shares 130,651 Value ($000) $6,911 Avg Close $48.18 Range $38.64 - $54.90

Q3 2014

Shares 33,515 Value ($000) $1,335 Avg Close $44.00 Range $39.40 - $48.93

Q2 2014

Shares 7,237 Value ($000) $346 Avg Close $38.65 Range $31.45 - $49.10

Q1 2014

Shares 7,010 Value ($000) $232 Avg Close $29.77 Range $26.25 - $33.60

Q4 2013

Shares 79,067 Value ($000) $2,332 Avg Close $33.88 Range $28.53 - $39.87

Q3 2013

Shares 105,301 Value ($000) $3,932 Avg Close $37.73 Range $35.02 - $41.24

Q2 2013

Shares 122,084 Value ($000) $5,451 Avg Close $44.80 Range $38.60 - $48.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	416,062	$132,466	$353.55	$314.37 - $412.60
Q3 2025	453,773	$156,656	$271.66	$213.06 - $360.30
Q2 2025	477,853	$107,149	$211.87	$180.60 - $237.50
Q1 2025	535,986	$110,815	$201.31	$169.58 - $231.97
Q4 2024	103,295	$20,010	$174.85	$140.47 - $203.90
Q3 2024	90,491	$12,816	$131.08	$115.10 - $143.96
Q2 2024	86,504	$10,083	$106.87	$95.33 - $119.10
Q1 2024	88,218	$9,392	$105.70	$100.55 - $119.86
Q4 2023	88,990	$9,659	$92.54	$74.65 - $111.79
Q3 2023	52,385	$4,203	$86.92	$79.20 - $98.69
Q2 2023	62,313	$6,016	$80.98	$66.82 - $97.62
Q1 2023	73,926	$5,389	$69.61	$52.13 - $75.74
Q4 2022	77,939	$3,856	$48.77	$43.87 - $51.48
Q3 2022	91,432	$3,696	$53.92	$40.23 - $64.00
Q2 2022	68,086	$4,140	$61.35	$56.13 - $67.14
Q1 2022	42,695	$2,724	$66.45	$61.36 - $73.97
Q4 2021	31,354	$2,246	$69.71	$65.79 - $74.27
Q3 2021	58,341	$3,957	$69.30	$63.34 - $75.25
Q2 2021	35,232	$2,573	$73.91	$63.74 - $85.75
Q1 2021	53,213	$3,378	$65.36	$59.93 - $69.02
Q4 2020	70,788	$4,295	$59.88	$54.37 - $63.74
Q3 2020	26,050	$1,486	$60.07	$54.62 - $67.06
Q2 2020	15,021	$851	$53.16	$41.61 - $62.66
Q1 2020	32,657	$1,457	$52.66	$31.04 - $64.22
Q4 2019	33,174	$1,808	$55.25	$49.84 - $60.33
Q3 2019	30,404	$1,595	$56.51	$47.02 - $66.95
Q2 2019	50,855	$3,275	$66.69	$62.43 - $72.66
Q1 2019	56,309	$3,715	$69.51	$64.12 - $74.03
Q4 2018	72,106	$4,790	$72.85	$62.34 - $80.75
Q3 2018	68,533	$5,483	$81.96	$78.65 - $85.85
Q2 2018	118,428	$9,581	$79.55	$71.75 - $85.50
Q1 2018	87,570	$6,445	$76.57	$69.33 - $81.70
Q4 2017	64,222	$4,891	$74.74	$70.60 - $78.10
Q3 2017	62,460	$4,606	$73.19	$67.55 - $81.85
Q2 2017	39,304	$3,038	$83.80	$77.20 - $93.00
Q1 2017	44,179	$3,813	$89.86	$83.15 - $102.30
Q4 2016	46,826	$4,278	$80.20	$68.10 - $98.00
Q3 2016	14,364	$1,138	$66.77	$52.33 - $79.92
Q2 2016	29,446	$1,640	$56.52	$51.97 - $59.83
Q1 2016	40,565	$2,257	$48.28	$41.01 - $55.85
Q4 2015	58,058	$2,847	$50.76	$46.78 - $54.95
Q3 2015	111,657	$5,650	$51.62	$44.28 - $57.77
Q2 2015	97,582	$5,551	$55.81	$49.57 - $60.69
Q1 2015	130,437	$6,618	$51.89	$47.76 - $56.27
Q4 2014	130,651	$6,911	$48.18	$38.64 - $54.90
Q3 2014	33,515	$1,335	$44.00	$39.40 - $48.93
Q2 2014	7,237	$346	$38.65	$31.45 - $49.10
Q1 2014	7,010	$232	$29.77	$26.25 - $33.60
Q4 2013	79,067	$2,332	$33.88	$28.53 - $39.87
Q3 2013	105,301	$3,932	$37.73	$35.02 - $41.24
Q2 2013	122,084	$5,451	$44.80	$38.60 - $48.60