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 — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$7.90$7.901,272,600
2018-12-28$7.41$7.41571,500
2018-12-27$7.00$7.00546,900
2018-12-26$7.08$7.08661,200
2018-12-24$6.50$6.50518,600
2018-12-21$6.41$6.411,419,200
2018-12-20$6.50$6.50425,700
2018-12-19$6.88$6.88487,900
2018-12-18$6.91$6.91348,200
2018-12-17$6.92$6.92537,000
2018-12-14$6.95$6.95344,500
2018-12-13$6.44$6.44152,200
2018-12-12$6.38$6.38366,900
2018-12-11$6.09$6.09146,700
2018-12-10$6.14$6.14167,400
2018-12-07$5.92$5.92190,100
2018-12-06$6.16$6.16268,300
2018-12-04$5.81$5.81171,000
2018-12-03$6.15$6.15145,400
2018-11-30$6.24$6.24169,900
2018-11-29$6.13$6.13154,700
2018-11-28$6.23$6.23266,700
2018-11-27$5.75$5.75129,200
2018-11-26$5.62$5.62173,700
2018-11-23$5.39$5.3951,300
2018-11-21$5.55$5.55118,700
2018-11-20$5.42$5.42104,300
2018-11-19$5.64$5.64215,900
2018-11-16$5.58$5.58218,000
2018-11-15$5.64$5.64110,700
2018-11-14$5.55$5.55177,800
2018-11-13$5.36$5.36356,500
2018-11-12$4.93$4.93142,300
2018-11-09$5.04$5.04170,100
2018-11-08$5.33$5.33133,700
2018-11-07$5.17$5.17222,900
2018-11-06$4.84$4.8470,900
2018-11-05$4.77$4.7787,300
2018-11-02$4.83$4.83134,500
2018-11-01$4.85$4.85173,900
2018-10-31$4.83$4.83140,800
2018-10-30$4.92$4.92139,600
2018-10-29$4.87$4.87172,700
2018-10-26$5.16$5.16249,500
2018-10-25$5.10$5.10130,400
2018-10-24$5.04$5.04163,200
2018-10-23$5.12$5.1291,200
2018-10-22$5.12$5.12162,800
2018-10-19$5.07$5.07164,600
2018-10-18$5.11$5.1199,500
2018-10-17$5.26$5.2698,800
2018-10-16$5.32$5.32108,400
2018-10-15$5.15$5.1563,400
2018-10-12$5.20$5.20159,100
2018-10-11$5.10$5.10126,700
2018-10-10$5.08$5.08356,800
2018-10-09$5.37$5.3799,300
2018-10-08$5.52$5.52193,500
2018-10-05$5.52$5.52343,700
2018-10-04$5.43$5.43380,500
2018-10-03$5.30$5.30438,000
2018-10-02$5.78$5.78620,000
2018-10-01$6.46$6.46339,400
2018-09-28$6.89$6.89216,800
2018-09-27$6.98$6.9882,400
2018-09-26$7.08$7.08236,500
2018-09-25$7.02$7.02233,700
2018-09-24$7.16$7.16257,300
2018-09-21$7.23$7.23408,600
2018-09-20$6.75$6.7587,100
2018-09-19$6.68$6.68171,100
2018-09-18$6.71$6.71136,200
2018-09-17$6.78$6.78155,300
2018-09-14$6.89$6.89198,500
2018-09-13$6.93$6.93216,200
2018-09-12$7.08$7.08266,000
2018-09-11$7.16$7.16662,200
2018-09-10$7.05$7.05155,300
2018-09-07$7.25$7.25154,100
2018-09-06$7.39$7.39374,400
2018-09-05$7.98$7.98112,800
2018-09-04$8.13$8.13114,200
2018-08-31$8.23$8.2374,800
2018-08-30$8.34$8.34136,000
2018-08-29$8.32$8.32229,400
2018-08-28$8.28$8.28111,000
2018-08-27$8.17$8.17167,200
2018-08-24$8.25$8.25141,200
2018-08-23$8.23$8.23141,100
2018-08-22$8.17$8.17215,000
2018-08-21$8.24$8.24144,300
2018-08-20$7.98$7.9870,100
2018-08-17$8.07$8.07151,100
2018-08-16$8.10$8.1081,700
2018-08-15$7.90$7.90150,000
2018-08-14$8.13$8.13212,600
2018-08-13$7.91$7.91137,400
2018-08-10$7.85$7.85221,100
2018-08-09$7.69$7.69180,200
2018-08-08$7.31$7.3177,300
2018-08-07$7.30$7.3090,300
2018-08-06$7.29$7.29124,300
2018-08-03$7.12$7.12139,100
2018-08-02$7.36$7.3693,800
2018-08-01$7.50$7.50137,400
2018-07-31$7.59$7.59375,400
2018-07-30$7.22$7.2276,500
2018-07-27$7.40$7.40168,100
2018-07-26$7.57$7.57127,200
2018-07-25$7.47$7.47111,900
2018-07-24$7.33$7.33187,400
2018-07-23$7.36$7.36173,700
2018-07-20$7.16$7.16153,200
2018-07-19$7.23$7.23256,800
2018-07-18$7.05$7.05118,300
2018-07-17$7.00$7.00227,900
2018-07-16$7.18$7.181,273,400
2018-07-13$7.35$7.351,726,900
2018-07-12$6.24$6.24191,400
2018-07-11$6.29$6.29156,400
2018-07-10$6.51$6.51276,200
2018-07-09$6.34$6.3497,700
2018-07-06$6.37$6.37132,800
2018-07-05$6.24$6.24235,600
2018-07-03$6.03$6.0376,400
2018-07-02$6.09$6.09195,000
2018-06-29$5.94$5.94367,700
2018-06-28$6.00$6.00351,600
2018-06-27$6.14$6.14252,100
2018-06-26$6.31$6.31222,100
2018-06-25$6.50$6.50439,400
2018-06-22$6.90$6.906,838,900
2018-06-21$6.71$6.71459,500
2018-06-20$7.09$7.09405,300
2018-06-19$7.05$7.05665,700
2018-06-18$7.17$7.17569,200
2018-06-15$7.08$7.082,227,900
2018-06-14$7.24$7.241,127,900
2018-06-13$7.29$7.29757,800
2018-06-12$7.02$7.02900,200
2018-06-11$7.08$7.08857,200
2018-06-08$6.94$6.94197,300
2018-06-07$7.17$7.17166,200
2018-06-06$7.14$7.14228,100
2018-06-05$6.94$6.94243,700
2018-06-04$6.97$6.97164,900
2018-06-01$6.94$6.94149,700
2018-05-31$6.71$6.71220,300
2018-05-30$6.52$6.5275,700
2018-05-29$6.18$6.1880,600
2018-05-25$6.11$6.1145,600
2018-05-24$6.42$6.4234,200
2018-05-23$6.37$6.3763,700
2018-05-22$6.53$6.5335,700
2018-05-21$6.62$6.6254,700
2018-05-18$6.72$6.72180,500
2018-05-17$6.62$6.62442,600
2018-05-16$6.65$6.65106,000
2018-05-15$6.73$6.73188,900
2018-05-14$6.56$6.56156,800
2018-05-11$6.47$6.47119,800
2018-05-10$5.98$5.98104,700
2018-05-09$6.05$6.0590,800
2018-05-08$6.27$6.2760,200
2018-05-07$6.40$6.40185,600
2018-05-04$6.49$6.49239,100
2018-05-03$6.50$6.50202,200
2018-05-02$6.50$6.50527,300
2018-05-01$5.89$5.8927,000
2018-04-30$5.89$5.89103,300
2018-04-27$5.97$5.97160,600
2018-04-26$6.05$6.0563,600
2018-04-25$6.11$6.1179,600
2018-04-24$6.15$6.15128,800
2018-04-23$6.15$6.1554,800
2018-04-20$6.19$6.1923,500
2018-04-19$6.22$6.2243,600
2018-04-18$6.29$6.2949,100
2018-04-17$6.20$6.2045,800
2018-04-16$6.24$6.2455,800
2018-04-13$6.27$6.2768,200
2018-04-12$6.25$6.25206,100
2018-04-11$6.24$6.2444,700
2018-04-10$6.35$6.3562,400
2018-04-09$6.35$6.3548,300
2018-04-06$6.30$6.3080,000
2018-04-05$6.28$6.2861,000
2018-04-04$6.14$6.14124,000
2018-04-03$6.20$6.20240,900
2018-04-02$6.10$6.1029,600
2018-03-29$6.13$6.1326,900
2018-03-28$6.17$6.1741,000
2018-03-27$6.03$6.0331,800
2018-03-26$6.00$6.0017,400
2018-03-23$5.91$5.9114,500
2018-03-22$6.08$6.0840,100
2018-03-21$6.00$6.0028,400
2018-03-20$6.06$6.0697,300
2018-03-19$5.87$5.8725,700
2018-03-16$5.78$5.7855,600
2018-03-15$5.29$5.2935,200
2018-03-14$4.96$4.9673,100
2018-03-13$5.00$5.00132,100
2018-03-12$5.48$5.48144,900
2018-03-09$5.98$5.9868,000
2018-03-08$6.25$6.2538,100
2018-03-07$6.39$6.3915,300
2018-03-06$6.36$6.3612,000
2018-03-05$6.43$6.4333,000
2018-03-02$6.32$6.3243,800
2018-03-01$6.40$6.4028,200
2018-02-28$6.60$6.6032,200
2018-02-27$6.65$6.6547,200
2018-02-26$6.50$6.5070,900
2018-02-23$6.43$6.43105,500
2018-02-22$6.24$6.2431,900
2018-02-21$5.99$5.9942,200
2018-02-20$6.00$6.0093,100
2018-02-16$5.95$5.9533,000
2018-02-15$5.94$5.9478,700
2018-02-14$5.93$5.93236,200
2018-02-13$5.45$5.45110,300
2018-02-12$5.25$5.2543,300
2018-02-09$5.20$5.2090,400
2018-02-08$5.10$5.1022,300
2018-02-07$5.12$5.1249,900
2018-02-06$4.92$4.9263,000
2018-02-05$4.95$4.9523,500
2018-02-02$5.00$5.0014,600
2018-02-01$4.95$4.956,300
2018-01-31$5.03$5.0374,200
2018-01-30$4.89$4.8929,300
2018-01-29$4.84$4.847,400
2018-01-26$4.83$4.8318,900
2018-01-25$4.75$4.7535,900
2018-01-24$4.84$4.8411,000
2018-01-23$4.78$4.7816,700
2018-01-22$4.77$4.7790,900
2018-01-19$4.77$4.775,400
2018-01-18$4.70$4.7019,300
2018-01-17$4.81$4.816,500
2018-01-16$4.90$4.906,400
2018-01-12$4.96$4.9612,800
2018-01-11$4.90$4.909,400
2018-01-10$4.85$4.858,500
2018-01-09$4.76$4.7610,000
2018-01-08$4.85$4.858,100
2018-01-05$4.97$4.9712,000
2018-01-04$4.95$4.9517,500
2018-01-03$4.83$4.8323,000
2018-01-02$4.80$4.806,900