INTERDIGITAL INC

Ticker: IDCC CUSIP: 45867G101 Class: EQTY

BANK OF MONTREAL /CAN/'s Holding History (CIK: 0000927971)

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

Q4 2025

Shares 3,202 Value ($000) $1,019 Avg Close $353.55 Range $314.37 - $412.60

Q3 2025

Shares 106,285 Value ($000) $36,693 Avg Close $271.66 Range $213.06 - $360.30

Q2 2025

Shares 109,222 Value ($000) $24,491 Avg Close $211.87 Range $180.60 - $237.50

Q1 2025

Shares 108,311 Value ($000) $22,393 Avg Close $201.31 Range $169.58 - $231.97

Q4 2024

Shares 107,009 Value ($000) $20,730 Avg Close $174.85 Range $140.47 - $203.90

Q3 2024

Shares 314,282 Value ($000) $44,329 Avg Close $131.08 Range $115.10 - $143.96

Q2 2024

Shares 80,407 Value ($000) $9,429 Avg Close $106.87 Range $95.33 - $119.10

Q1 2024

Shares 376,521 Value ($000) $40,182 Avg Close $105.70 Range $100.55 - $119.86

Q4 2023

Shares 320,144 Value ($000) $35,357 Avg Close $92.54 Range $74.65 - $111.79

Q3 2023

Shares 305,690 Value ($000) $25,916 Avg Close $86.92 Range $79.20 - $98.69

Q2 2023

Shares 364,039 Value ($000) $35,312 Avg Close $80.98 Range $66.82 - $97.62

Q1 2023

Shares 241,577 Value ($000) $17,935 Avg Close $69.61 Range $52.13 - $75.74

Q4 2022

Shares 213,435 Value ($000) $10,774 Avg Close $48.77 Range $43.87 - $51.48

Q3 2022

Shares 203,470 Value ($000) $10,888 Avg Close $53.92 Range $40.23 - $64.00

Q2 2022

Shares 203,731 Value ($000) $13,189 Avg Close $61.35 Range $56.13 - $67.14

Q1 2022

Shares 208,627 Value ($000) $13,731 Avg Close $66.45 Range $61.36 - $73.97

Q4 2021

Shares 210,660 Value ($000) $15,319 Avg Close $69.71 Range $65.79 - $74.27

Q3 2021

Shares 213,922 Value ($000) $14,519 Avg Close $69.30 Range $63.34 - $75.25

Q2 2021

Shares 208,813 Value ($000) $15,589 Avg Close $73.91 Range $63.74 - $85.75

Q1 2021

Shares 161,610 Value ($000) $11,807 Avg Close $65.36 Range $59.93 - $69.02

Q4 2020

Shares 191,518 Value ($000) $12,465 Avg Close $59.88 Range $54.37 - $63.74

Q3 2020

Shares 146,820 Value ($000) $8,406 Avg Close $60.07 Range $54.62 - $67.06

Q2 2020

Shares 141,735 Value ($000) $8,020 Avg Close $53.16 Range $41.61 - $62.66

Q1 2020

Shares 42,010 Value ($000) $1,831 Avg Close $52.66 Range $31.04 - $64.22

Q4 2019

Shares 84,188 Value ($000) $4,588 Avg Close $55.25 Range $49.84 - $60.33

Q3 2019

Shares 150,505 Value ($000) $7,897 Avg Close $56.51 Range $47.02 - $66.95

Q2 2019

Shares 4,832 Value ($000) $311 Avg Close $66.69 Range $62.43 - $72.66

Q1 2019

Shares 2,259 Value ($000) $150 Avg Close $69.51 Range $64.12 - $74.03

Q4 2018

Shares 3,023 Value ($000) $201 Avg Close $72.85 Range $62.34 - $80.75

Q3 2018

Shares 2,477 Value ($000) $198 Avg Close $81.96 Range $78.65 - $85.85

Q2 2018

Shares 2,489 Value ($000) $201 Avg Close $79.55 Range $71.75 - $85.50

Q1 2018

Shares 2,153 Value ($000) $158 Avg Close $76.57 Range $69.33 - $81.70

Q4 2017

Shares 1,910 Value ($000) $145 Avg Close $74.74 Range $70.60 - $78.10

Q3 2017

Shares 2,250 Value ($000) $167 Avg Close $73.19 Range $67.55 - $81.85

Q2 2017

Shares 89,314 Value ($000) $6,904 Avg Close $83.80 Range $77.20 - $93.00

Q1 2017

Shares 93,432 Value ($000) $8,063 Avg Close $89.86 Range $83.15 - $102.30

Q4 2016

Shares 123,423 Value ($000) $9,775 Avg Close $80.20 Range $68.10 - $98.00

Q3 2016

Shares 3,574 Value ($000) $283 Avg Close $66.77 Range $52.33 - $79.92

Q2 2016

Shares 3,374 Value ($000) $189 Avg Close $56.52 Range $51.97 - $59.83

Q1 2016

Shares 2,964 Value ($000) $166 Avg Close $48.28 Range $41.01 - $55.85

Q4 2015

Shares 5,049 Value ($000) $248 Avg Close $50.76 Range $46.78 - $54.95

Q3 2015

Shares 8,326 Value ($000) $421 Avg Close $51.62 Range $44.28 - $57.77

Q2 2015

Shares 250,643 Value ($000) $14,259 Avg Close $55.81 Range $49.57 - $60.69

Q1 2015

Shares 6,878 Value ($000) $349 Avg Close $51.89 Range $47.76 - $56.27

Q4 2014

Shares 149,632 Value ($000) $7,915 Avg Close $48.18 Range $38.64 - $54.90

Q3 2014

Shares 158,926 Value ($000) $6,328 Avg Close $44.00 Range $39.40 - $48.93

Q2 2014

Shares 187,068 Value ($000) $8,942 Avg Close $38.65 Range $31.45 - $49.10

Q1 2014

Shares 215,006 Value ($000) $7,119 Avg Close $29.77 Range $26.25 - $33.60

Q4 2013

Shares 217,893 Value ($000) $6,426 Avg Close $33.88 Range $28.53 - $39.87

Q3 2013

Shares 210,676 Value ($000) $7,867 Avg Close $37.73 Range $35.02 - $41.24

Q2 2013

Shares 145,317 Value ($000) $6,488 Avg Close $44.80 Range $38.60 - $48.60

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	3,202	$1,019	$353.55	$314.37 - $412.60
Q3 2025	106,285	$36,693	$271.66	$213.06 - $360.30
Q2 2025	109,222	$24,491	$211.87	$180.60 - $237.50
Q1 2025	108,311	$22,393	$201.31	$169.58 - $231.97
Q4 2024	107,009	$20,730	$174.85	$140.47 - $203.90
Q3 2024	314,282	$44,329	$131.08	$115.10 - $143.96
Q2 2024	80,407	$9,429	$106.87	$95.33 - $119.10
Q1 2024	376,521	$40,182	$105.70	$100.55 - $119.86
Q4 2023	320,144	$35,357	$92.54	$74.65 - $111.79
Q3 2023	305,690	$25,916	$86.92	$79.20 - $98.69
Q2 2023	364,039	$35,312	$80.98	$66.82 - $97.62
Q1 2023	241,577	$17,935	$69.61	$52.13 - $75.74
Q4 2022	213,435	$10,774	$48.77	$43.87 - $51.48
Q3 2022	203,470	$10,888	$53.92	$40.23 - $64.00
Q2 2022	203,731	$13,189	$61.35	$56.13 - $67.14
Q1 2022	208,627	$13,731	$66.45	$61.36 - $73.97
Q4 2021	210,660	$15,319	$69.71	$65.79 - $74.27
Q3 2021	213,922	$14,519	$69.30	$63.34 - $75.25
Q2 2021	208,813	$15,589	$73.91	$63.74 - $85.75
Q1 2021	161,610	$11,807	$65.36	$59.93 - $69.02
Q4 2020	191,518	$12,465	$59.88	$54.37 - $63.74
Q3 2020	146,820	$8,406	$60.07	$54.62 - $67.06
Q2 2020	141,735	$8,020	$53.16	$41.61 - $62.66
Q1 2020	42,010	$1,831	$52.66	$31.04 - $64.22
Q4 2019	84,188	$4,588	$55.25	$49.84 - $60.33
Q3 2019	150,505	$7,897	$56.51	$47.02 - $66.95
Q2 2019	4,832	$311	$66.69	$62.43 - $72.66
Q1 2019	2,259	$150	$69.51	$64.12 - $74.03
Q4 2018	3,023	$201	$72.85	$62.34 - $80.75
Q3 2018	2,477	$198	$81.96	$78.65 - $85.85
Q2 2018	2,489	$201	$79.55	$71.75 - $85.50
Q1 2018	2,153	$158	$76.57	$69.33 - $81.70
Q4 2017	1,910	$145	$74.74	$70.60 - $78.10
Q3 2017	2,250	$167	$73.19	$67.55 - $81.85
Q2 2017	89,314	$6,904	$83.80	$77.20 - $93.00
Q1 2017	93,432	$8,063	$89.86	$83.15 - $102.30
Q4 2016	123,423	$9,775	$80.20	$68.10 - $98.00
Q3 2016	3,574	$283	$66.77	$52.33 - $79.92
Q2 2016	3,374	$189	$56.52	$51.97 - $59.83
Q1 2016	2,964	$166	$48.28	$41.01 - $55.85
Q4 2015	5,049	$248	$50.76	$46.78 - $54.95
Q3 2015	8,326	$421	$51.62	$44.28 - $57.77
Q2 2015	250,643	$14,259	$55.81	$49.57 - $60.69
Q1 2015	6,878	$349	$51.89	$47.76 - $56.27
Q4 2014	149,632	$7,915	$48.18	$38.64 - $54.90
Q3 2014	158,926	$6,328	$44.00	$39.40 - $48.93
Q2 2014	187,068	$8,942	$38.65	$31.45 - $49.10
Q1 2014	215,006	$7,119	$29.77	$26.25 - $33.60
Q4 2013	217,893	$6,426	$33.88	$28.53 - $39.87
Q3 2013	210,676	$7,867	$37.73	$35.02 - $41.24
Q2 2013	145,317	$6,488	$44.80	$38.60 - $48.60