NASDAQ:SIGA | Historical Stock Price | SIGA TECHNOLOGIES INC

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
1997-09-10 to 2026-09-04
Data captured

Stock Price Chart

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

$0.36$0.83$1.93$4.45$10.29$23.791997-09-102026-08-27

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

View year

Historical Stock Price — 2017

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2017-12-29$4.85$4.8540,900
2017-12-28$4.90$4.9013,900
2017-12-27$4.85$4.8510,700
2017-12-26$4.90$4.9010,800
2017-12-22$4.95$4.9520,700
2017-12-21$4.95$4.9563,500
2017-12-20$5.00$5.0024,600
2017-12-19$4.91$4.916,200
2017-12-18$4.95$4.951,500
2017-12-15$4.97$4.976,300
2017-12-14$4.96$4.966,000
2017-12-13$4.96$4.965,200
2017-12-12$4.90$4.9045,600
2017-12-11$4.99$4.9957,800
2017-12-08$4.85$4.855,100
2017-12-07$4.83$4.8316,400
2017-12-06$4.82$4.8218,300
2017-12-05$4.90$4.908,200
2017-12-04$4.90$4.904,800
2017-12-01$4.85$4.857,300
2017-11-30$4.79$4.7955,600
2017-11-29$4.99$4.9936,600
2017-11-28$5.12$5.12288,000
2017-11-27$4.80$4.8027,500
2017-11-24$4.89$4.8919,800
2017-11-22$4.89$4.8913,300
2017-11-21$4.49$4.495,400
2017-11-20$4.46$4.4615,500
2017-11-17$4.50$4.507,600
2017-11-16$4.40$4.4015,000
2017-11-15$4.50$4.504,000
2017-11-14$4.52$4.5283,300
2017-11-13$4.47$4.4718,500
2017-11-10$4.60$4.6021,000
2017-11-09$4.68$4.6817,600
2017-11-08$4.78$4.7827,000
2017-11-07$4.88$4.8819,000
2017-11-06$4.65$4.6512,900
2017-11-03$4.88$4.8838,800
2017-11-02$4.92$4.929,400
2017-11-01$4.94$4.9454,100
2017-10-31$4.80$4.8061,800
2017-10-30$5.00$5.0016,000
2017-10-27$4.94$4.9462,900
2017-10-26$4.98$4.9844,400
2017-10-25$4.93$4.9329,800
2017-10-24$4.95$4.9578,900
2017-10-23$4.93$4.93337,900
2017-10-20$4.39$4.3946,200
2017-10-19$4.19$4.1921,900
2017-10-18$4.12$4.1227,600
2017-10-17$4.11$4.1188,100
2017-10-16$4.05$4.0591,600
2017-10-13$4.00$4.00192,300
2017-10-12$3.42$3.4245,100
2017-10-11$3.37$3.3719,500
2017-10-10$3.33$3.3320,700
2017-10-09$3.25$3.2511,500
2017-10-06$3.30$3.308,300
2017-10-05$3.40$3.4048,900
2017-10-04$3.25$3.2541,800
2017-10-03$3.18$3.1810,800
2017-10-02$3.14$3.146,600
2017-09-29$3.17$3.1722,800
2017-09-28$3.13$3.1313,500
2017-09-27$3.17$3.17284,900
2017-09-26$3.20$3.2019,300
2017-09-25$3.19$3.1928,400
2017-09-22$3.09$3.0918,700
2017-09-21$3.11$3.115,400
2017-09-20$3.09$3.09227,200
2017-09-19$3.00$3.0012,000
2017-09-18$2.98$2.9814,100
2017-09-15$2.99$2.9918,700
2017-09-14$3.00$3.0042,600
2017-09-13$3.03$3.031,700
2017-09-12$3.03$3.038,000
2017-09-11$3.00$3.00108,000
2017-09-08$3.02$3.02310,200
2017-09-07$3.20$3.2098,400
2017-09-06$3.05$3.0525,400
2017-09-05$3.04$3.046,200
2017-09-01$3.04$3.0482,100
2017-08-31$3.03$3.03300
2017-08-30$2.95$2.9529,600
2017-08-29$3.00$3.0017,800
2017-08-28$2.95$2.9551,600
2017-08-25$3.04$3.042,900
2017-08-24$3.03$3.0362,000
2017-08-23$3.04$3.0417,700
2017-08-22$3.10$3.10281,200
2017-08-21$3.05$3.0519,200
2017-08-18$3.10$3.101,100
2017-08-17$3.12$3.1216,800
2017-08-16$3.12$3.1216,500
2017-08-15$3.12$3.1223,000
2017-08-14$3.11$3.1116,900
2017-08-11$3.08$3.0830,600
2017-08-10$3.10$3.1082,100
2017-08-09$3.05$3.057,300
2017-08-08$3.05$3.0546,600
2017-08-07$3.04$3.048,300
2017-08-04$3.05$3.0525,200
2017-08-03$3.04$3.0419,400
2017-08-02$3.10$3.1010,500
2017-08-01$3.16$3.1668,200
2017-07-31$3.17$3.1714,700
2017-07-28$3.05$3.0567,600
2017-07-27$3.02$3.0253,900
2017-07-26$3.09$3.093,900
2017-07-25$3.11$3.1117,000
2017-07-24$3.10$3.106,200
2017-07-21$3.22$3.2243,200
2017-07-20$3.27$3.2729,300
2017-07-19$3.35$3.3518,200
2017-07-18$3.23$3.230
2017-07-17$3.23$3.2321,000
2017-07-14$3.14$3.145,400
2017-07-13$3.25$3.2588,000
2017-07-12$3.20$3.2022,800
2017-07-11$3.20$3.202,200
2017-07-10$3.30$3.3011,100
2017-07-07$3.08$3.081,300
2017-07-06$3.07$3.0725,300
2017-07-05$3.08$3.0823,000
2017-07-03$3.10$3.102,100
2017-06-30$3.04$3.0450,900
2017-06-29$3.07$3.0716,200
2017-06-28$3.18$3.1865,800
2017-06-27$3.05$3.0530,500
2017-06-26$3.18$3.1823,400
2017-06-23$3.12$3.1235,000
2017-06-22$3.25$3.25489,000
2017-06-21$3.34$3.3439,900
2017-06-20$3.23$3.2343,200
2017-06-19$3.26$3.2632,600
2017-06-16$3.35$3.3533,700
2017-06-15$3.40$3.4022,500
2017-06-14$3.34$3.3432,500
2017-06-13$3.45$3.4534,500
2017-06-12$3.67$3.6713,800
2017-06-09$3.68$3.6815,900
2017-06-08$3.52$3.5220,200
2017-06-07$3.39$3.3922,000
2017-06-06$3.25$3.2523,400
2017-06-05$3.28$3.2858,400
2017-06-02$3.33$3.3327,800
2017-06-01$3.48$3.4849,400
2017-05-31$3.45$3.451,300
2017-05-30$3.49$3.4915,400
2017-05-26$3.35$3.356,700
2017-05-25$3.45$3.458,100
2017-05-24$3.42$3.4226,500
2017-05-23$3.50$3.5055,400
2017-05-22$3.50$3.5015,300
2017-05-19$3.54$3.5422,700
2017-05-18$3.52$3.527,800
2017-05-17$3.52$3.528,400
2017-05-16$3.42$3.4219,900
2017-05-15$3.40$3.4013,100
2017-05-12$3.46$3.4630,600
2017-05-11$3.51$3.5111,600
2017-05-10$3.60$3.6012,800
2017-05-09$3.64$3.6417,000
2017-05-08$3.60$3.6013,000
2017-05-05$3.61$3.6152,700
2017-05-04$3.68$3.6822,300
2017-05-03$3.62$3.6227,900
2017-05-02$3.79$3.7990,500
2017-05-01$3.74$3.7467,100
2017-04-28$3.71$3.7114,400
2017-04-27$3.65$3.6582,800
2017-04-26$3.60$3.60120,900
2017-04-25$3.53$3.5381,200
2017-04-24$3.49$3.4930,300
2017-04-21$3.58$3.5838,800
2017-04-20$3.35$3.35174,300
2017-04-19$3.14$3.148,500
2017-04-18$3.20$3.202,600
2017-04-17$3.23$3.232,800
2017-04-13$3.29$3.2919,000
2017-04-12$3.20$3.2022,900
2017-04-11$3.24$3.248,700
2017-04-10$3.23$3.2323,600
2017-04-07$3.18$3.1855,500
2017-04-06$3.05$3.0540,800
2017-04-05$3.15$3.1511,200
2017-04-04$3.16$3.1613,500
2017-04-03$3.08$3.083,200
2017-03-31$3.14$3.1437,100
2017-03-30$3.18$3.187,200
2017-03-29$3.17$3.1719,700
2017-03-28$3.00$3.0023,600
2017-03-27$2.98$2.9818,300
2017-03-24$2.96$2.9611,900
2017-03-23$3.06$3.0631,000
2017-03-22$3.00$3.0027,600
2017-03-21$3.05$3.0530,600
2017-03-20$3.05$3.0544,800
2017-03-17$3.11$3.1128,600
2017-03-16$3.14$3.1415,200
2017-03-15$3.12$3.123,500
2017-03-14$3.20$3.2012,600
2017-03-13$3.20$3.2016,100
2017-03-10$3.18$3.1830,100
2017-03-09$3.24$3.2421,000
2017-03-08$3.16$3.1623,300
2017-03-07$3.11$3.11105,500
2017-03-06$3.18$3.1824,500
2017-03-03$3.25$3.2528,100
2017-03-02$3.30$3.3027,800
2017-03-01$3.34$3.3441,400
2017-02-28$3.29$3.2925,300
2017-02-27$3.35$3.3597,800
2017-02-24$3.29$3.2996,200
2017-02-23$3.15$3.1565,800
2017-02-22$3.30$3.30106,300
2017-02-21$3.30$3.30124,400
2017-02-17$3.07$3.0778,800
2017-02-16$2.95$2.9556,200
2017-02-15$2.95$2.9567,600
2017-02-14$2.98$2.9813,700
2017-02-13$2.91$2.9134,500
2017-02-10$2.94$2.9446,600
2017-02-09$2.98$2.9876,000
2017-02-08$3.00$3.0043,500
2017-02-07$3.00$3.0014,500
2017-02-06$3.00$3.009,800
2017-02-03$3.00$3.0031,700
2017-02-02$3.01$3.0144,400
2017-02-01$3.00$3.0045,500
2017-01-31$2.97$2.9710,200
2017-01-30$3.02$3.0221,700
2017-01-27$3.05$3.0523,600
2017-01-26$2.95$2.9540,300
2017-01-25$2.96$2.9635,800
2017-01-24$3.00$3.0012,500
2017-01-23$2.98$2.9831,600
2017-01-20$3.00$3.0056,500
2017-01-19$2.98$2.9829,500
2017-01-18$3.05$3.0551,800
2017-01-17$3.07$3.0767,400
2017-01-13$3.08$3.0846,100
2017-01-12$3.00$3.0078,100
2017-01-11$2.83$2.8327,100
2017-01-10$2.84$2.8453,800
2017-01-09$2.86$2.8667,100
2017-01-06$2.95$2.9552,500
2017-01-05$2.87$2.8754,700
2017-01-04$2.87$2.8745,700
2017-01-03$2.93$2.9335,800