when did interdigital go public

InterDigital (IDCC) went public on March 26, 1990, when it opened at $4.61.

DATEOPENHIGHLOWCLOSEVOLUME
May 2026
$300.01
$305.00
$259.01
$260.37
4,823,137
April 2026
$305.39
$387.30
$289.30
$296.56
6,096,700
March 2026
$364.73
$379.81
$292.97
$301.33
12,401,800
February 2026
$325.72
$382.28
$309.31
$365.72
6,106,400
January 2026
$317.07
$339.24
$293.75
$325.72
5,472,100
December 2025
$348.82
$365.82
$312.97
$316.97
5,684,900
November 2025
$384.99
$398.22
$321.32
$356.16
5,944,800
October 2025
$342.75
$410.77
$329.01
$360.35
8,593,100
September 2025
$266.69
$357.96
$263.42
$342.99
8,696,500
August 2025
$251.11
$275.08
$246.06
$269.95
5,484,200
July 2025
$221.16
$276.15
$211.68
$256.52
6,079,100
June 2025
$215.23
$235.33
$211.06
$222.18
5,044,200
May 2025
$203.39
$222.75
$194.21
$215.28
6,165,400
April 2025
$203.15
$209.52
$178.39
$199.16
7,461,300
March 2025
$214.01
$229.13
$197.68
$204.22
8,442,200
February 2025
$176.61
$216.08
$174.83
$211.02
7,965,700
January 2025
$191.66
$204.05
$167.50
$180.74
7,169,500
December 2024
$192.15
$200.92
$183.95
$190.89
7,694,300
November 2024
$149.29
$196.87
$148.79
$193.09
7,429,800
October 2024
$139.22
$161.92
$137.99
$148.24
9,322,600
September 2024
$136.04
$141.42
$127.47
$139.13
7,044,200
August 2024
$127.70
$138.12
$124.20
$136.11
12,192,800
July 2024
$114.64
$122.25
$112.69
$120.59
7,232,700
June 2024
$112.19
$116.61
$111.37
$114.12
7,998,600
May 2024
$96.37
$112.21
$95.47
$111.49
11,314,700