when did regeneron pharmaceuticals go public

Regeneron Pharmaceuticals (REGN) went public on April 2, 1991, when it opened at $21.97.

DATE OPEN HIGH LOW CLOSE VOLUME
March 2025
$701.91
$748.29
$657.00
$678.42
11,345,500
February 2025
$667.94
$739.00
$641.18
$698.74
17,887,000
January 2025
$719.93
$742.33
$665.39
$672.12
17,766,800
December 2024
$749.05
$799.96
$692.11
$711.42
18,051,400
November 2024
$843.53
$860.89
$735.01
$749.26
16,783,800
October 2024
$1,052.71
$1,060.24
$814.94
$837.12
17,457,700
September 2024
$1,177.22
$1,191.01
$1,007.12
$1,049.89
12,689,200
August 2024
$1,059.50
$1,209.65
$1,040.51
$1,183.17
10,420,300
July 2024
$1,045.77
$1,104.74
$1,010.37
$1,077.80
8,543,300
June 2024
$978.90
$1,079.78
$978.00
$1,049.68
9,310,500
May 2024
$888.27
$996.59
$887.38
$978.90
9,455,700
April 2024
$963.49
$968.95
$874.11
$889.52
10,148,700
March 2024
$966.26
$986.86
$946.15
$961.25
8,523,900
February 2024
$944.40
$997.05
$921.85
$964.85
10,253,800
January 2024
$872.79
$964.42
$870.27
$941.57
11,852,200
December 2023
$823.88
$898.71
$801.52
$877.16
12,741,300
November 2023
$782.90
$839.17
$773.99
$822.75
11,110,200
October 2023
$825.94
$852.87
$768.20
$778.89
8,722,000
September 2023
$833.48
$840.08
$807.09
$821.90
8,085,100
August 2023
$743.70
$846.41
$725.19
$825.43
11,808,600
July 2023
$709.18
$750.83
$687.64
$740.96
13,082,500
June 2023
$735.06
$792.98
$683.93
$717.62
14,710,600
May 2023
$802.68
$814.19
$716.96
$734.62
12,554,000
April 2023
$817.75
$836.48
$770.15
$800.76
8,863,700
March 2023
$758.91
$833.93
$724.73
$820.62
15,598,400