NASDAQ:RGEN | Historical Stock Price | REPLIGEN CORP

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1986-04-29 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$0.71$2.45$8.39$28.81$98.89$339.421986-04-292026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 1991

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1991-12-31$15.50$15.50320,200
1991-12-30$16.00$16.00327,400
1991-12-27$14.50$14.50395,800
1991-12-26$12.75$12.7591,500
1991-12-24$13.00$13.0083,500
1991-12-23$13.38$13.38142,400
1991-12-20$13.00$13.0043,100
1991-12-19$13.25$13.2576,000
1991-12-18$13.50$13.5065,400
1991-12-17$13.75$13.75143,000
1991-12-16$13.50$13.50131,200
1991-12-13$13.50$13.50213,700
1991-12-12$12.75$12.75121,800
1991-12-11$13.00$13.00323,400
1991-12-10$14.25$14.25214,800
1991-12-09$14.63$14.63108,400
1991-12-06$14.50$14.50115,200
1991-12-05$14.50$14.50162,800
1991-12-04$14.50$14.5084,300
1991-12-03$14.50$14.50128,400
1991-12-02$14.13$14.13144,500
1991-11-29$14.50$14.5043,800
1991-11-27$14.50$14.5076,700
1991-11-26$14.50$14.50214,000
1991-11-25$14.00$14.00169,200
1991-11-22$14.50$14.50211,500
1991-11-21$14.25$14.25177,000
1991-11-20$14.25$14.25170,700
1991-11-19$14.75$14.75611,800
1991-11-18$15.75$15.75387,500
1991-11-15$16.50$16.50347,500
1991-11-14$18.00$18.00202,200
1991-11-13$17.75$17.75322,500
1991-11-12$18.00$18.00276,300
1991-11-11$17.25$17.25106,600
1991-11-08$17.50$17.50271,400
1991-11-07$17.50$17.50310,200
1991-11-06$18.25$18.25299,100
1991-11-05$17.00$17.00352,500
1991-11-04$18.00$18.00242,200
1991-11-01$18.25$18.25173,900
1991-10-31$19.25$19.25223,200
1991-10-30$19.13$19.13335,700
1991-10-29$19.75$19.75377,400
1991-10-28$19.75$19.75621,900
1991-10-25$18.50$18.50835,500
1991-10-24$18.88$18.881,881,200
1991-10-23$20.25$20.253,806,600
1991-10-22$29.00$29.002,554,100
1991-10-21$23.75$23.751,938,400
1991-10-18$21.00$21.001,722,900
1991-10-17$17.38$17.38262,600
1991-10-16$18.00$18.00436,200
1991-10-15$18.00$18.00370,400
1991-10-14$17.25$17.25170,500
1991-10-11$16.00$16.0085,000
1991-10-10$16.00$16.00194,400
1991-10-09$16.25$16.2594,600
1991-10-08$17.25$17.2597,400
1991-10-07$17.00$17.0059,400
1991-10-04$17.50$17.50287,800
1991-10-03$17.25$17.25388,400
1991-10-02$18.00$18.00405,400
1991-10-01$16.75$16.75201,400
1991-09-30$16.25$16.2591,300
1991-09-27$15.25$15.25146,400
1991-09-26$15.50$15.5089,200
1991-09-25$15.50$15.5076,600
1991-09-24$15.75$15.75209,200
1991-09-23$16.50$16.50240,300
1991-09-20$17.50$17.50554,400
1991-09-19$17.25$17.25478,800
1991-09-18$17.00$17.00566,300
1991-09-17$16.13$16.13216,500
1991-09-16$15.75$15.75564,100
1991-09-13$15.25$15.25181,400
1991-09-12$14.75$14.7563,400
1991-09-11$13.75$13.7512,200
1991-09-10$14.25$14.2537,100
1991-09-09$14.25$14.2522,500
1991-09-06$14.50$14.5023,700
1991-09-05$14.50$14.5079,500
1991-09-04$14.50$14.5037,900
1991-09-03$14.75$14.7544,700
1991-08-30$14.75$14.7576,800
1991-08-29$14.75$14.75108,100
1991-08-28$15.13$15.13140,900
1991-08-27$14.25$14.2564,700
1991-08-26$14.13$14.1368,600
1991-08-23$13.50$13.5047,600
1991-08-22$13.25$13.2517,900
1991-08-21$13.25$13.2588,100
1991-08-20$13.00$13.0031,300
1991-08-19$12.75$12.7575,600
1991-08-16$14.25$14.2524,000
1991-08-15$14.00$14.0023,100
1991-08-14$14.00$14.00110,500
1991-08-13$13.63$13.6372,500
1991-08-12$14.00$14.0051,800
1991-08-09$14.75$14.7524,000
1991-08-08$15.00$15.0069,200
1991-08-07$14.88$14.8897,000
1991-08-06$14.50$14.50124,700
1991-08-05$14.75$14.7560,400
1991-08-02$14.75$14.7536,600
1991-08-01$14.63$14.6377,900
1991-07-31$14.25$14.2573,000
1991-07-30$14.50$14.5019,600
1991-07-29$14.25$14.2545,200
1991-07-26$14.25$14.2563,400
1991-07-25$14.25$14.25138,300
1991-07-24$14.38$14.38169,300
1991-07-23$13.75$13.75108,400
1991-07-22$13.25$13.25135,500
1991-07-19$13.50$13.5079,800
1991-07-18$14.25$14.2565,100
1991-07-17$14.00$14.00119,000
1991-07-16$14.25$14.2573,600
1991-07-15$15.00$15.0085,400
1991-07-12$14.75$14.75170,900
1991-07-11$14.50$14.50193,600
1991-07-10$14.75$14.75173,000
1991-07-09$14.75$14.75297,700
1991-07-08$14.75$14.75586,800
1991-07-05$14.25$14.25130,400
1991-07-03$13.63$13.63233,900
1991-07-02$12.75$12.75197,500
1991-07-01$12.00$12.0064,300
1991-06-28$12.25$12.2527,800
1991-06-27$12.25$12.2547,000
1991-06-26$12.00$12.00108,000
1991-06-25$12.75$12.75119,400
1991-06-24$12.25$12.25198,400
1991-06-21$14.25$14.25260,800
1991-06-20$14.00$14.00125,000
1991-06-19$14.25$14.25137,100
1991-06-18$15.00$15.00255,600
1991-06-17$14.75$14.75102,900
1991-06-14$15.25$15.25211,600
1991-06-13$16.00$16.00172,800
1991-06-12$16.00$16.00382,900
1991-06-11$15.75$15.75397,300
1991-06-10$15.50$15.50320,700
1991-06-07$14.50$14.50151,200
1991-06-06$14.63$14.63597,100
1991-06-05$13.75$13.75200,400
1991-06-04$13.50$13.50205,200
1991-06-03$13.00$13.00110,400
1991-05-31$13.50$13.50121,600
1991-05-30$13.50$13.5088,900
1991-05-29$13.25$13.25256,600
1991-05-28$13.50$13.50380,400
1991-05-24$12.50$12.50229,400
1991-05-23$12.25$12.25179,500
1991-05-22$11.75$11.75111,300
1991-05-21$11.63$11.63112,200
1991-05-20$11.75$11.7583,500
1991-05-17$11.88$11.8871,000
1991-05-16$11.00$11.0084,400
1991-05-15$11.50$11.50258,000
1991-05-14$12.00$12.00118,600
1991-05-13$12.25$12.25260,800
1991-05-10$12.13$12.131,626,200
1991-05-09$13.00$13.0070,300
1991-05-08$12.00$12.0015,600
1991-05-07$13.25$13.2526,300
1991-05-06$13.50$13.5022,400
1991-05-03$14.00$14.00128,700
1991-05-02$13.25$13.2539,800
1991-05-01$12.25$12.2529,100
1991-04-30$12.50$12.5010,800
1991-04-29$12.50$12.5020,700
1991-04-26$12.25$12.2531,400
1991-04-25$11.75$11.7529,900
1991-04-24$12.75$12.75101,400
1991-04-23$13.50$13.5095,500
1991-04-22$14.00$14.0014,200
1991-04-19$13.75$13.7597,000
1991-04-18$15.25$15.25124,300
1991-04-17$14.50$14.5033,900
1991-04-16$14.00$14.0041,600
1991-04-15$14.00$14.009,000
1991-04-12$13.50$13.5016,900
1991-04-11$13.75$13.7510,300
1991-04-10$13.63$13.6324,300
1991-04-09$14.00$14.0026,800
1991-04-08$13.75$13.75118,100
1991-04-05$14.00$14.0051,400
1991-04-04$15.00$15.0073,400
1991-04-03$15.00$15.0077,100
1991-04-02$15.38$15.38138,200
1991-04-01$14.50$14.5047,500
1991-03-28$14.00$14.0013,000
1991-03-27$13.75$13.7523,700
1991-03-26$14.00$14.0030,300
1991-03-25$14.25$14.258,300
1991-03-22$14.25$14.2513,400
1991-03-21$14.00$14.00341,600
1991-03-20$15.00$15.00282,900
1991-03-19$14.75$14.7562,200
1991-03-18$14.00$14.0011,200
1991-03-15$13.75$13.7523,600
1991-03-14$13.75$13.7557,800
1991-03-13$13.00$13.0030,300
1991-03-12$13.00$13.0051,200
1991-03-11$14.25$14.2572,800
1991-03-08$14.88$14.88170,600
1991-03-07$14.25$14.25145,400
1991-03-06$13.75$13.75189,800
1991-03-05$12.75$12.7590,200
1991-03-04$12.75$12.7536,100
1991-03-01$13.50$13.502,800
1991-02-28$13.00$13.0047,300
1991-02-27$13.63$13.6313,700
1991-02-26$13.75$13.7538,900
1991-02-25$13.63$13.6369,600
1991-02-22$13.25$13.2541,800
1991-02-21$13.75$13.758,100
1991-02-20$13.50$13.5058,500
1991-02-19$14.50$14.5062,400
1991-02-15$14.25$14.25114,600
1991-02-14$14.00$14.0090,700
1991-02-13$13.50$13.5052,400
1991-02-12$12.75$12.7533,700
1991-02-11$12.50$12.5069,600
1991-02-08$13.00$13.0068,800
1991-02-07$13.25$13.25101,200
1991-02-06$14.25$14.25112,600
1991-02-05$15.00$15.00198,600
1991-02-04$14.50$14.50301,800
1991-02-01$12.75$12.7537,500
1991-01-31$13.00$13.0070,400
1991-01-30$13.25$13.25126,300
1991-01-29$12.25$12.25145,000
1991-01-28$11.75$11.7540,500
1991-01-25$11.13$11.1332,600
1991-01-24$11.25$11.2550,000
1991-01-23$11.00$11.0016,200
1991-01-22$11.00$11.0011,300
1991-01-21$11.13$11.1337,600
1991-01-18$11.25$11.2519,300
1991-01-17$11.25$11.2576,100
1991-01-16$10.75$10.7528,000
1991-01-15$10.75$10.7569,700
1991-01-14$10.75$10.7530,800
1991-01-11$11.50$11.5052,300
1991-01-10$11.25$11.2528,200
1991-01-09$10.88$10.8838,000
1991-01-08$10.38$10.38114,600
1991-01-07$11.25$11.2546,500
1991-01-04$12.00$12.0058,200
1991-01-03$11.88$11.8850,800
1991-01-02$12.00$12.0074,900