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 — 1999

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1999-12-31$3.13$3.1383,700——
1999-12-30$3.13$3.13115,900——
1999-12-29$3.25$3.2579,600——
1999-12-28$3.13$3.1366,100——
1999-12-27$3.19$3.1940,800——
1999-12-23$3.13$3.13112,100——
1999-12-22$3.13$3.1381,800——
1999-12-21$3.13$3.1331,200——
1999-12-20$3.13$3.1377,300——
1999-12-17$3.13$3.13118,000——
1999-12-16$3.00$3.0074,000——
1999-12-15$3.00$3.0051,700——
1999-12-14$2.88$2.88102,900——
1999-12-13$2.97$2.97149,200——
1999-12-10$3.00$3.00299,600——
1999-12-09$3.06$3.06418,300——
1999-12-08$3.19$3.19505,600——
1999-12-07$3.00$3.001,774,600——
1999-12-06$4.47$4.4783,900——
1999-12-03$4.44$4.4497,800——
1999-12-02$4.42$4.4283,800——
1999-12-01$4.44$4.44112,000——
1999-11-30$4.50$4.5093,100——
1999-11-29$4.38$4.3861,500——
1999-11-26$4.50$4.5026,900——
1999-11-24$4.25$4.25100,600——
1999-11-23$4.25$4.2592,800——
1999-11-22$4.25$4.25151,600——
1999-11-19$4.31$4.31164,700——
1999-11-18$4.75$4.75253,700——
1999-11-17$4.25$4.25245,100——
1999-11-16$4.00$4.0094,500——
1999-11-15$4.13$4.13241,600——
1999-11-12$4.50$4.50504,700——
1999-11-11$4.38$4.38318,400——
1999-11-10$4.25$4.251,483,600——
1999-11-09$4.00$4.00280,600——
1999-11-08$4.00$4.00286,600——
1999-11-05$3.94$3.94345,300——
1999-11-04$3.31$3.3124,300——
1999-11-03$3.31$3.3165,100——
1999-11-02$3.38$3.38180,100——
1999-11-01$3.19$3.19166,100——
1999-10-29$3.44$3.44193,000——
1999-10-28$3.13$3.13120,200——
1999-10-27$3.38$3.38126,000——
1999-10-26$3.41$3.41151,000——
1999-10-25$3.56$3.5680,300——
1999-10-22$3.53$3.53152,600——
1999-10-21$3.50$3.5081,000——
1999-10-20$3.69$3.6951,000——
1999-10-19$3.69$3.6968,400——
1999-10-18$3.94$3.94196,000——
1999-10-15$4.06$4.06188,000——
1999-10-14$3.88$3.8880,600——
1999-10-13$3.91$3.9197,200——
1999-10-12$3.75$3.75141,800——
1999-10-11$3.91$3.91289,300——
1999-10-08$4.00$4.00398,300——
1999-10-07$4.06$4.06518,300——
1999-10-06$3.94$3.94650,600——
1999-10-05$3.63$3.63234,400——
1999-10-04$2.97$2.97171,400——
1999-10-01$2.94$2.94265,400——
1999-09-30$2.94$2.94154,000——
1999-09-29$2.84$2.84110,100——
1999-09-28$2.88$2.8852,100——
1999-09-27$2.94$2.9457,300——
1999-09-24$2.88$2.88482,700——
1999-09-23$3.13$3.13197,400——
1999-09-22$2.97$2.9790,000——
1999-09-21$3.03$3.03155,200——
1999-09-20$3.03$3.0366,400——
1999-09-17$2.88$2.88191,900——
1999-09-16$3.00$3.0063,800——
1999-09-15$2.94$2.94214,200——
1999-09-14$2.88$2.88122,700——
1999-09-13$2.88$2.8890,900——
1999-09-10$2.75$2.7584,900——
1999-09-09$2.78$2.7884,100——
1999-09-08$2.88$2.88117,700——
1999-09-07$2.69$2.69145,200——
1999-09-03$2.69$2.6930,300——
1999-09-02$2.67$2.6749,100——
1999-09-01$2.69$2.6946,900——
1999-08-31$2.66$2.6649,500——
1999-08-30$2.75$2.7548,500——
1999-08-27$2.81$2.8132,800——
1999-08-26$2.75$2.75255,200——
1999-08-25$2.66$2.66339,600——
1999-08-24$2.81$2.81133,800——
1999-08-23$2.69$2.69521,200——
1999-08-20$2.69$2.69694,900——
1999-08-19$2.56$2.5637,200——
1999-08-18$2.44$2.4424,700——
1999-08-17$2.38$2.3812,700——
1999-08-16$2.38$2.3831,900——
1999-08-13$2.38$2.3818,300——
1999-08-12$2.56$2.5673,700——
1999-08-11$2.38$2.3842,000——
1999-08-10$2.44$2.4490,000——
1999-08-09$2.56$2.5628,400——
1999-08-06$2.56$2.5618,400——
1999-08-05$2.56$2.5620,500——
1999-08-04$2.63$2.6312,200——
1999-08-03$2.66$2.6622,300——
1999-08-02$2.75$2.75112,300——
1999-07-30$2.81$2.8170,100——
1999-07-29$2.81$2.81113,100——
1999-07-28$2.75$2.7586,700——
1999-07-27$2.75$2.7543,900——
1999-07-26$2.84$2.8436,900——
1999-07-23$2.84$2.8414,800——
1999-07-22$2.88$2.88328,400——
1999-07-21$2.97$2.9752,000——
1999-07-20$2.88$2.8838,200——
1999-07-19$2.81$2.8143,400——
1999-07-16$2.91$2.9114,900——
1999-07-15$2.97$2.9739,200——
1999-07-14$2.94$2.94224,100——
1999-07-13$2.84$2.8424,700——
1999-07-12$2.94$2.9426,700——
1999-07-09$2.84$2.8451,400——
1999-07-08$2.94$2.94103,900——
1999-07-07$2.94$2.94188,100——
1999-07-06$2.81$2.81188,100——
1999-07-02$2.81$2.8138,500——
1999-07-01$2.88$2.8862,600——
1999-06-30$2.88$2.8826,900——
1999-06-29$2.91$2.9141,800——
1999-06-28$2.91$2.9117,600——
1999-06-25$2.91$2.91121,100——
1999-06-24$2.84$2.8462,700——
1999-06-23$2.84$2.84109,400——
1999-06-22$2.88$2.8855,700——
1999-06-21$2.94$2.9473,900——
1999-06-18$2.94$2.9479,700——
1999-06-17$2.97$2.97102,900——
1999-06-16$3.00$3.0041,900——
1999-06-15$3.03$3.0353,900——
1999-06-14$3.00$3.0052,400——
1999-06-11$3.00$3.0069,500——
1999-06-10$3.06$3.0697,900——
1999-06-09$3.06$3.0675,300——
1999-06-08$3.06$3.06194,400——
1999-06-07$3.03$3.03146,000——
1999-06-04$3.00$3.00115,900——
1999-06-03$3.00$3.00344,300——
1999-06-02$3.31$3.31651,100——
1999-06-01$2.97$2.9764,000——
1999-05-28$2.81$2.8130,700——
1999-05-27$2.91$2.9131,300——
1999-05-26$2.94$2.94155,100——
1999-05-25$2.88$2.88199,800——
1999-05-24$2.63$2.63283,700——
1999-05-21$2.91$2.9183,000——
1999-05-20$2.88$2.8830,800——
1999-05-19$2.97$2.9725,900——
1999-05-18$2.91$2.91104,100——
1999-05-17$2.94$2.94256,800——
1999-05-14$2.97$2.9775,800——
1999-05-13$2.91$2.9131,700——
1999-05-12$2.88$2.8826,100——
1999-05-11$2.75$2.7556,400——
1999-05-10$2.75$2.7540,700——
1999-05-07$2.88$2.8819,100——
1999-05-06$2.69$2.6948,400——
1999-05-05$3.03$3.0376,900——
1999-05-04$2.97$2.9759,700——
1999-05-03$2.88$2.8895,100——
1999-04-30$2.81$2.8126,400——
1999-04-29$2.88$2.8834,500——
1999-04-28$2.88$2.8843,600——
1999-04-27$2.94$2.9415,700——
1999-04-26$2.88$2.8830,600——
1999-04-23$2.97$2.9746,600——
1999-04-22$2.78$2.7836,500——
1999-04-21$2.63$2.6320,400——
1999-04-20$2.78$2.7827,400——
1999-04-19$2.88$2.8831,800——
1999-04-16$2.88$2.8864,800——
1999-04-15$3.00$3.00123,500——
1999-04-14$2.88$2.88119,200——
1999-04-13$2.88$2.8878,100——
1999-04-12$2.75$2.7560,200——
1999-04-09$3.00$3.0050,300——
1999-04-08$3.00$3.0033,300——
1999-04-07$2.75$2.7534,700——
1999-04-06$3.00$3.00165,900——
1999-04-05$3.19$3.1993,900——
1999-04-01$3.25$3.25397,400——
1999-03-31$3.06$3.06758,200——
1999-03-30$2.44$2.4439,100——
1999-03-29$2.44$2.4461,200——
1999-03-26$2.19$2.1913,700——
1999-03-25$1.94$1.9479,800——
1999-03-24$2.19$2.19105,900——
1999-03-23$2.06$2.0661,900——
1999-03-22$2.09$2.0979,200——
1999-03-19$2.38$2.3870,800——
1999-03-18$2.13$2.1365,300——
1999-03-17$2.09$2.0939,900——
1999-03-16$2.03$2.0364,400——
1999-03-15$2.13$2.13150,700——
1999-03-12$2.19$2.19406,800——
1999-03-11$2.50$2.501,327,200——
1999-03-10$2.31$2.311,125,400——
1999-03-09$1.69$1.6930,500——
1999-03-08$1.75$1.7517,500——
1999-03-05$1.72$1.7214,100——
1999-03-04$1.59$1.5931,100——
1999-03-03$1.69$1.6960,800——
1999-03-02$1.56$1.5636,500——
1999-03-01$1.63$1.6318,600——
1999-02-26$1.56$1.5623,400——
1999-02-25$1.72$1.7267,000——
1999-02-24$1.75$1.7569,000——
1999-02-23$1.47$1.47127,800——
1999-02-22$1.31$1.3124,800——
1999-02-19$1.31$1.3125,400——
1999-02-18$1.38$1.389,400——
1999-02-17$1.38$1.3817,200——
1999-02-16$1.38$1.3812,700——
1999-02-12$1.31$1.316,300——
1999-02-11$1.31$1.3112,000——
1999-02-10$1.38$1.383,400——
1999-02-09$1.38$1.3837,700——
1999-02-08$1.38$1.3812,100——
1999-02-05$1.38$1.3821,900——
1999-02-04$1.38$1.3842,500——
1999-02-03$1.38$1.3848,000——
1999-02-02$1.31$1.3119,900——
1999-02-01$1.38$1.3876,100——
1999-01-29$1.34$1.3434,700——
1999-01-28$1.41$1.417,800——
1999-01-27$1.41$1.4124,800——
1999-01-26$1.38$1.3819,500——
1999-01-25$1.38$1.3849,400——
1999-01-22$1.31$1.316,100——
1999-01-21$1.28$1.2810,200——
1999-01-20$1.31$1.3136,700——
1999-01-19$1.38$1.3838,700——
1999-01-15$1.38$1.3822,300——
1999-01-14$1.44$1.4433,400——
1999-01-13$1.38$1.3838,700——
1999-01-12$1.25$1.2517,800——
1999-01-11$1.25$1.2512,500——
1999-01-08$1.25$1.2571,200——
1999-01-07$1.28$1.2833,000——
1999-01-06$1.34$1.3454,300——
1999-01-05$1.44$1.4428,100——
1999-01-04$1.38$1.3833,300——