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.

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Historical Stock Price — 2011

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2011-12-30$2.52$2.52704,100
2011-12-29$2.29$2.29312,100
2011-12-28$2.28$2.28408,600
2011-12-27$2.33$2.33650,800
2011-12-23$2.48$2.48326,400
2011-12-22$2.45$2.45711,000
2011-12-21$2.26$2.26353,800
2011-12-20$2.19$2.19592,500
2011-12-19$2.02$2.02624,900
2011-12-16$2.20$2.20510,100
2011-12-15$2.20$2.20489,600
2011-12-14$2.29$2.29433,200
2011-12-13$2.34$2.34735,500
2011-12-12$2.48$2.481,463,300
2011-12-09$2.43$2.432,612,400
2011-12-08$1.84$1.84326,500
2011-12-07$1.97$1.97451,800
2011-12-06$1.94$1.94412,400
2011-12-05$2.04$2.04466,900
2011-12-02$2.06$2.06428,900
2011-12-01$2.06$2.06410,900
2011-11-30$2.10$2.10718,600
2011-11-29$1.98$1.98328,700
2011-11-28$2.09$2.09682,400
2011-11-25$1.91$1.91309,800
2011-11-23$1.97$1.97516,200
2011-11-22$2.14$2.14697,500
2011-11-21$2.23$2.23706,600
2011-11-18$2.52$2.52658,400
2011-11-17$2.41$2.41545,500
2011-11-16$2.48$2.48885,700
2011-11-15$2.66$2.66294,100
2011-11-14$2.66$2.66635,700
2011-11-11$2.96$2.96176,800
2011-11-10$2.98$2.98371,000
2011-11-09$2.90$2.90442,500
2011-11-08$3.06$3.06427,800
2011-11-07$3.09$3.09304,800
2011-11-04$3.17$3.17198,700
2011-11-03$3.24$3.24393,900
2011-11-02$3.15$3.15292,100
2011-11-01$3.18$3.18527,500
2011-10-31$3.24$3.24412,800
2011-10-28$3.22$3.22372,000
2011-10-27$3.20$3.20489,900
2011-10-26$3.11$3.11420,000
2011-10-25$3.03$3.03472,500
2011-10-24$3.24$3.24527,000
2011-10-21$3.05$3.05408,400
2011-10-20$3.11$3.11317,100
2011-10-19$3.14$3.14336,200
2011-10-18$3.22$3.22574,200
2011-10-17$3.21$3.21362,000
2011-10-14$3.49$3.49604,600
2011-10-13$3.33$3.33228,100
2011-10-12$3.35$3.35429,200
2011-10-11$3.27$3.27362,400
2011-10-10$3.21$3.21386,500
2011-10-07$3.10$3.10591,400
2011-10-06$3.35$3.35539,600
2011-10-05$3.33$3.33714,300
2011-10-04$3.46$3.461,004,500
2011-10-03$2.92$2.921,056,100
2011-09-30$3.27$3.27956,600
2011-09-29$3.16$3.161,843,400
2011-09-28$2.93$2.932,316,200
2011-09-27$2.79$2.791,789,800
2011-09-26$2.86$2.861,775,100
2011-09-23$2.94$2.944,436,200
2011-09-22$2.69$2.694,454,600
2011-09-21$4.72$4.72338,500
2011-09-20$4.86$4.86297,400
2011-09-19$5.10$5.10623,100
2011-09-16$5.12$5.122,032,900
2011-09-15$4.92$4.92480,000
2011-09-14$4.96$4.96297,400
2011-09-13$4.96$4.96358,300
2011-09-12$4.97$4.97518,600
2011-09-09$4.87$4.87445,900
2011-09-08$5.13$5.13424,800
2011-09-07$5.39$5.39451,300
2011-09-06$4.93$4.93682,800
2011-09-02$5.10$5.10452,000
2011-09-01$5.54$5.54402,000
2011-08-31$5.74$5.74440,800
2011-08-30$5.67$5.67283,500
2011-08-29$5.74$5.74388,900
2011-08-26$5.44$5.44353,000
2011-08-25$5.22$5.22622,500
2011-08-24$5.70$5.70855,400
2011-08-23$5.31$5.31593,100
2011-08-22$5.04$5.04622,500
2011-08-19$5.04$5.04827,500
2011-08-18$5.28$5.28557,900
2011-08-17$5.78$5.78394,000
2011-08-16$5.75$5.75487,000
2011-08-15$6.05$6.05577,900
2011-08-12$5.79$5.79786,400
2011-08-11$5.55$5.55846,000
2011-08-10$5.14$5.141,044,800
2011-08-09$5.47$5.471,058,400
2011-08-08$5.30$5.301,727,800
2011-08-05$5.75$5.751,275,100
2011-08-04$6.19$6.191,286,400
2011-08-03$6.30$6.302,221,100
2011-08-02$6.70$6.701,641,700
2011-08-01$7.34$7.34646,600
2011-07-29$7.61$7.61487,000
2011-07-28$7.53$7.53595,900
2011-07-27$7.76$7.76519,000
2011-07-26$8.01$8.01520,000
2011-07-25$7.86$7.86918,400
2011-07-22$8.23$8.23475,300
2011-07-21$8.52$8.52509,200
2011-07-20$8.29$8.29459,400
2011-07-19$8.55$8.55687,500
2011-07-18$8.69$8.69559,400
2011-07-15$8.80$8.80570,200
2011-07-14$9.01$9.01534,000
2011-07-13$9.18$9.18456,400
2011-07-12$9.27$9.27769,100
2011-07-11$8.81$8.811,059,700
2011-07-08$9.26$9.26510,200
2011-07-07$9.56$9.56501,900
2011-07-06$9.58$9.58491,500
2011-07-05$9.67$9.67366,700
2011-07-01$9.70$9.70593,700
2011-06-30$9.74$9.74987,900
2011-06-29$10.23$10.231,215,300
2011-06-28$10.80$10.801,433,000
2011-06-27$10.87$10.87431,300
2011-06-24$10.80$10.80790,600
2011-06-23$11.00$11.00433,800
2011-06-22$11.02$11.02302,600
2011-06-21$11.21$11.21473,700
2011-06-20$10.71$10.71605,200
2011-06-17$10.74$10.741,831,200
2011-06-16$11.09$11.09824,600
2011-06-15$10.93$10.93639,600
2011-06-14$10.86$10.862,199,400
2011-06-13$12.10$12.101,024,700
2011-06-10$12.38$12.38456,900
2011-06-09$12.21$12.21328,700
2011-06-08$12.30$12.30421,400
2011-06-07$12.66$12.66289,500
2011-06-06$12.53$12.53512,400
2011-06-03$13.03$13.03458,600
2011-06-02$13.29$13.29356,400
2011-06-01$13.16$13.16573,300
2011-05-31$13.94$13.94696,400
2011-05-27$14.39$14.39983,600
2011-05-26$14.05$14.05531,600
2011-05-25$13.36$13.36449,700
2011-05-24$13.15$13.15624,200
2011-05-23$13.20$13.20610,800
2011-05-20$13.48$13.48838,900
2011-05-19$13.61$13.61803,900
2011-05-18$14.08$14.08498,200
2011-05-17$14.22$14.22829,500
2011-05-16$14.52$14.522,311,400
2011-05-13$14.19$14.19555,100
2011-05-12$14.48$14.48237,000
2011-05-11$14.03$14.03282,800
2011-05-10$13.94$13.94290,700
2011-05-09$13.84$13.84346,100
2011-05-06$13.46$13.46512,900
2011-05-05$13.31$13.311,000,000
2011-05-04$13.97$13.972,383,300
2011-05-03$12.74$12.74309,200
2011-05-02$12.80$12.80502,400
2011-04-29$13.73$13.73291,000
2011-04-28$13.72$13.72150,000
2011-04-27$13.59$13.59149,000
2011-04-26$13.45$13.45205,200
2011-04-25$13.48$13.48195,500
2011-04-21$13.50$13.50186,700
2011-04-20$13.51$13.51188,500
2011-04-19$13.36$13.36288,600
2011-04-18$13.88$13.88530,800
2011-04-15$13.92$13.92490,800
2011-04-14$13.52$13.52353,100
2011-04-13$13.41$13.41437,600
2011-04-12$12.93$12.93268,100
2011-04-11$13.06$13.06218,300
2011-04-08$13.34$13.34302,200
2011-04-07$13.31$13.31227,200
2011-04-06$13.62$13.62372,000
2011-04-05$13.51$13.51454,400
2011-04-04$13.26$13.26515,500
2011-04-01$12.80$12.80504,400
2011-03-31$12.10$12.10331,500
2011-03-30$12.32$12.32208,000
2011-03-29$12.25$12.25177,900
2011-03-28$12.16$12.16244,300
2011-03-25$12.35$12.35326,400
2011-03-24$12.34$12.34243,600
2011-03-23$12.14$12.14316,100
2011-03-22$12.02$12.02624,500
2011-03-21$12.11$12.11431,400
2011-03-18$12.17$12.171,671,100
2011-03-17$11.94$11.94450,900
2011-03-16$12.20$12.20553,300
2011-03-15$12.25$12.25338,500
2011-03-14$12.39$12.39532,800
2011-03-11$12.27$12.271,087,000
2011-03-10$12.56$12.562,024,200
2011-03-09$15.29$15.29623,200
2011-03-08$15.00$15.00362,700
2011-03-07$15.20$15.20689,400
2011-03-04$15.36$15.36855,500
2011-03-03$14.75$14.75801,000
2011-03-02$13.88$13.88377,900
2011-03-01$13.59$13.59361,800
2011-02-28$13.40$13.40475,500
2011-02-25$13.40$13.40290,600
2011-02-24$13.12$13.12490,500
2011-02-23$13.10$13.10590,800
2011-02-22$13.58$13.582,124,700
2011-02-18$11.40$11.40328,400
2011-02-17$11.48$11.48162,500
2011-02-16$11.42$11.42644,300
2011-02-15$11.48$11.48173,900
2011-02-14$11.50$11.50195,000
2011-02-11$11.22$11.22216,000
2011-02-10$11.04$11.04172,800
2011-02-09$11.26$11.26174,900
2011-02-08$11.32$11.32168,300
2011-02-07$11.17$11.17277,700
2011-02-04$11.56$11.56484,400
2011-02-03$11.00$11.00602,600
2011-02-02$10.93$10.93630,800
2011-02-01$11.18$11.18482,700
2011-01-31$11.48$11.48465,100
2011-01-28$11.76$11.76308,900
2011-01-27$12.08$12.08215,600
2011-01-26$12.30$12.30281,100
2011-01-25$11.92$11.92236,800
2011-01-24$11.98$11.98505,700
2011-01-21$12.34$12.34886,500
2011-01-20$13.05$13.05253,400
2011-01-19$13.42$13.42305,700
2011-01-18$13.75$13.75252,100
2011-01-14$13.69$13.69320,900
2011-01-13$13.35$13.35208,000
2011-01-12$13.58$13.58141,900
2011-01-11$13.68$13.68302,900
2011-01-10$13.34$13.34249,100
2011-01-07$13.46$13.46128,700
2011-01-06$13.52$13.52163,200
2011-01-05$13.69$13.69403,100
2011-01-04$13.15$13.15432,000
2011-01-03$13.56$13.56593,400