INTERDIGITAL INC

Ticker: IDCC CUSIP: 45867G101 Class: EQTY

STATE OF MICHIGAN RETIREMENT SYSTEM's Holding History (CIK: 0000762152)

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

Q1 2021
Shares 11,246 Value ($000) $714 Avg Close $65.36 Range $59.93 - $69.02
Q4 2020
Shares 11,246 Value ($000) $682 Avg Close $59.88 Range $54.37 - $63.74
Q3 2020
Shares 11,246 Value ($000) $642 Avg Close $60.07 Range $54.62 - $67.06
Q2 2020
Shares 11,146 Value ($000) $631 Avg Close $53.16 Range $41.61 - $62.66
Q1 2020
Shares 8,500 Value ($000) $379 Avg Close $52.66 Range $31.04 - $64.22
Q4 2019
Shares 9,000 Value ($000) $490 Avg Close $55.25 Range $49.84 - $60.33
Q3 2019
Shares 9,000 Value ($000) $472 Avg Close $56.51 Range $47.02 - $66.95
Q2 2019
Shares 9,400 Value ($000) $605 Avg Close $66.69 Range $62.43 - $72.66
Q1 2019
Shares 11,600 Value ($000) $765 Avg Close $69.51 Range $64.12 - $74.03
Q4 2018
Shares 12,100 Value ($000) $804 Avg Close $72.85 Range $62.34 - $80.75
Q3 2018
Shares 12,900 Value ($000) $1,032 Avg Close $81.96 Range $78.65 - $85.85
Q2 2018
Shares 12,800 Value ($000) $1,036 Avg Close $79.55 Range $71.75 - $85.50
Q1 2018
Shares 12,600 Value ($000) $927 Avg Close $76.57 Range $69.33 - $81.70
Q4 2017
Shares 12,500 Value ($000) $952 Avg Close $74.74 Range $70.60 - $78.10
Q3 2017
Shares 13,100 Value ($000) $966 Avg Close $73.19 Range $67.55 - $81.85
Q2 2017
Shares 14,300 Value ($000) $1,105 Avg Close $83.80 Range $77.20 - $93.00
Q1 2017
Shares 13,900 Value ($000) $1,200 Avg Close $89.86 Range $83.15 - $102.30
Q4 2016
Shares 13,800 Value ($000) $1,261 Avg Close $80.20 Range $68.10 - $98.00
Q3 2016
Shares 13,800 Value ($000) $1,093 Avg Close $66.77 Range $52.33 - $79.92
Q2 2016
Shares 13,900 Value ($000) $774 Avg Close $56.52 Range $51.97 - $59.83
Q1 2016
Shares 14,000 Value ($000) $779 Avg Close $48.28 Range $41.01 - $55.85
Q4 2015
Shares 14,000 Value ($000) $687 Avg Close $50.76 Range $46.78 - $54.95
Q3 2015
Shares 16,300 Value ($000) $825 Avg Close $51.62 Range $44.28 - $57.77
Q2 2015
Shares 16,400 Value ($000) $933 Avg Close $55.81 Range $49.57 - $60.69
Q1 2015
Shares 16,800 Value ($000) $852 Avg Close $51.89 Range $47.76 - $56.27
Q4 2014
Shares 17,700 Value ($000) $936 Avg Close $48.18 Range $38.64 - $54.90
Q3 2014
Shares 19,200 Value ($000) $765 Avg Close $44.00 Range $39.40 - $48.93
Q2 2014
Shares 19,100 Value ($000) $913 Avg Close $38.65 Range $31.45 - $49.10
Q1 2014
Shares 19,000 Value ($000) $629 Avg Close $29.77 Range $26.25 - $33.60
Q4 2013
Shares 19,300 Value ($000) $569 Avg Close $33.88 Range $28.53 - $39.87
Q3 2013
Shares 19,200 Value ($000) $717 Avg Close $37.73 Range $35.02 - $41.24
Q2 2013
Shares 18,900 Value ($000) $844 Avg Close $44.80 Range $38.60 - $48.60