INTERDIGITAL INC

Ticker: IDCC CUSIP: 45867G101 Class: EQTY

Municipal Employees' Retirement System of Michigan's Holding History (CIK: 0001588873)

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

Q1 2020

Shares 5,840 Value ($000) $261 Avg Close $52.66 Range $31.04 - $64.22

Q4 2019

Shares 5,710 Value ($000) $311 Avg Close $55.25 Range $49.84 - $60.33

Q3 2019

Shares 5,710 Value ($000) $300 Avg Close $56.51 Range $47.02 - $66.95

Q2 2019

Shares 5,950 Value ($000) $383 Avg Close $66.69 Range $62.43 - $72.66

Q1 2019

Shares 6,170 Value ($000) $407 Avg Close $69.51 Range $64.12 - $74.03

Q4 2018

Shares 8,370 Value ($000) $556 Avg Close $72.85 Range $62.34 - $80.75

Q2 2018

Shares 8,140 Value ($000) $659 Avg Close $79.55 Range $71.75 - $85.50

Q1 2018

Shares 10,500 Value ($000) $773 Avg Close $76.57 Range $69.33 - $81.70

Q4 2017

Shares 10,500 Value ($000) $800 Avg Close $74.74 Range $70.60 - $78.10

Q3 2017

Shares 10,500 Value ($000) $774 Avg Close $73.19 Range $67.55 - $81.85

Q2 2017

Shares 13,390 Value ($000) $1,035 Avg Close $83.80 Range $77.20 - $93.00

Q1 2017

Shares 15,890 Value ($000) $1,371 Avg Close $89.86 Range $83.15 - $102.30

Q4 2016

Shares 16,080 Value ($000) $1,469 Avg Close $80.20 Range $68.10 - $98.00

Q3 2016

Shares 15,530 Value ($000) $1,230 Avg Close $66.77 Range $52.33 - $79.92

Q2 2016

Shares 15,300 Value ($000) $852 Avg Close $56.52 Range $51.97 - $59.83

Q1 2016

Shares 11,660 Value ($000) $649 Avg Close $48.28 Range $41.01 - $55.85

Q4 2015

Shares 11,490 Value ($000) $563 Avg Close $50.76 Range $46.78 - $54.95

Q3 2015

Shares 11,530 Value ($000) $583 Avg Close $51.62 Range $44.28 - $57.77

Q2 2015

Shares 11,650 Value ($000) $663 Avg Close $55.81 Range $49.57 - $60.69

Q1 2015

Shares 11,300 Value ($000) $573 Avg Close $51.89 Range $47.76 - $56.27

Q4 2014

Shares 12,030 Value ($000) $636 Avg Close $48.18 Range $38.64 - $54.90

Q3 2014

Shares 11,500 Value ($000) $458 Avg Close $44.00 Range $39.40 - $48.93

Q2 2014

Shares 11,400 Value ($000) $545 Avg Close $38.65 Range $31.45 - $49.10

Q1 2014

Shares 11,400 Value ($000) $377 Avg Close $29.77 Range $26.25 - $33.60

Q4 2013

Shares 11,300 Value ($000) $333 Avg Close $33.88 Range $28.53 - $39.87

Q3 2013

Shares 6,800 Value ($000) $254 Avg Close $37.73 Range $35.02 - $41.24

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2020	5,840	$261	$52.66	$31.04 - $64.22
Q4 2019	5,710	$311	$55.25	$49.84 - $60.33
Q3 2019	5,710	$300	$56.51	$47.02 - $66.95
Q2 2019	5,950	$383	$66.69	$62.43 - $72.66
Q1 2019	6,170	$407	$69.51	$64.12 - $74.03
Q4 2018	8,370	$556	$72.85	$62.34 - $80.75
Q2 2018	8,140	$659	$79.55	$71.75 - $85.50
Q1 2018	10,500	$773	$76.57	$69.33 - $81.70
Q4 2017	10,500	$800	$74.74	$70.60 - $78.10
Q3 2017	10,500	$774	$73.19	$67.55 - $81.85
Q2 2017	13,390	$1,035	$83.80	$77.20 - $93.00
Q1 2017	15,890	$1,371	$89.86	$83.15 - $102.30
Q4 2016	16,080	$1,469	$80.20	$68.10 - $98.00
Q3 2016	15,530	$1,230	$66.77	$52.33 - $79.92
Q2 2016	15,300	$852	$56.52	$51.97 - $59.83
Q1 2016	11,660	$649	$48.28	$41.01 - $55.85
Q4 2015	11,490	$563	$50.76	$46.78 - $54.95
Q3 2015	11,530	$583	$51.62	$44.28 - $57.77
Q2 2015	11,650	$663	$55.81	$49.57 - $60.69
Q1 2015	11,300	$573	$51.89	$47.76 - $56.27
Q4 2014	12,030	$636	$48.18	$38.64 - $54.90
Q3 2014	11,500	$458	$44.00	$39.40 - $48.93
Q2 2014	11,400	$545	$38.65	$31.45 - $49.10
Q1 2014	11,400	$377	$29.77	$26.25 - $33.60
Q4 2013	11,300	$333	$33.88	$28.53 - $39.87
Q3 2013	6,800	$254	$37.73	$35.02 - $41.24