NASDAQ:SIGA | Stock Price History | 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.

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$3.1852,414
2026-09-03$3.2352,320
2026-09-02$3.2444,301
2026-09-01$3.1457,811
2026-08-31$3.0465,238
2026-08-28$3.0945,686
2026-08-27$3.06$4.72813,600$3.0243,870
2026-08-26$3.07$4.74651,100$3.0739,336
2026-08-25$3.04$4.69375,000$2.9628,057
2026-08-24$2.94$4.54667,100$3.0757,302
2026-08-21$3.04$4.691,536,000$2.9950,838
2026-08-20$2.97$4.58582,500$3.0644,975
2026-08-19$3.11$4.80898,500$3.1199,861
2026-08-18$2.99$4.62457,000$2.9336,032
2026-08-17$2.93$4.52766,800$2.9859,540
2026-08-14$3.00$4.63587,800$2.8830,111
2026-08-13$2.88$4.45479,900$2.9243,938
2026-08-12$2.87$4.43636,600$2.8842,749
2026-08-11$2.88$4.45582,200$2.9453,942
2026-08-10$2.93$4.521,019,800$3.0669,498
2026-08-07$3.05$4.71678,800$3.1544,575
2026-08-06$3.12$4.82493,500$3.1342,748
2026-08-05$3.15$4.86418,000$3.2332,412
2026-08-04$3.24$5.00468,100$3.2430,717
2026-08-03$3.21$4.96515,500$3.3027,697
2026-07-31$3.27$5.05661,000$3.2161,214
2026-07-30$3.25$5.02431,500$3.3517,326
2026-07-29$3.34$5.161,012,200$3.3178,084
2026-07-28$3.34$5.161,175,700$3.1382,149
2026-07-27$3.10$4.793,966,400$3.15193,935
2026-07-24$3.11$4.80877,500$3.1568,091
2026-07-23$3.15$4.861,137,200$3.3138,780
2026-07-22$3.39$5.23470,700$3.5525,054
2026-07-21$3.58$5.53463,100$3.4831,846
2026-07-20$3.48$5.37381,800$3.4630,497
2026-07-17$3.44$5.31328,800
2026-07-16$3.56$5.50675,500
2026-07-15$3.56$5.50535,600
2026-07-14$3.42$5.28456,300
2026-07-13$3.61$5.57562,400
2026-07-10$3.59$5.54627,500
2026-07-09$3.50$5.40660,000
2026-07-08$3.54$5.46588,600
2026-07-07$3.67$5.67580,200
2026-07-06$3.75$5.79489,100
2026-07-02$3.86$5.96545,000
2026-07-01$3.72$5.74741,400
2026-06-30$3.64$5.621,099,500
2026-06-29$3.61$5.571,263,100
2026-06-26$3.92$6.051,986,600
2026-06-25$3.95$6.10816,700
2026-06-24$4.32$6.67415,900
2026-06-23$4.30$6.64278,400
2026-06-22$4.33$6.68369,400
2026-06-18$4.32$6.67595,100
2026-06-17$4.31$6.65504,200
2026-06-16$4.30$6.64347,400
2026-06-15$4.34$6.70291,500
2026-06-12$4.32$6.67226,500
2026-06-11$4.31$6.65411,700
2026-06-10$4.36$6.73294,300
2026-06-09$4.39$6.78375,500
2026-06-08$4.33$6.68353,500
2026-06-05$4.30$6.64550,800
2026-06-04$4.43$6.84352,700
2026-06-03$4.29$6.62327,600
2026-06-02$4.32$6.67454,000
2026-06-01$4.44$6.85379,700
2026-05-29$4.68$7.22417,000
2026-05-28$4.76$7.35317,000
2026-05-27$4.73$7.30286,800
2026-05-26$4.67$7.21313,100
2026-05-22$4.68$7.22602,700
2026-05-21$4.71$7.27856,100
2026-05-20$4.49$6.931,007,500
2026-05-19$4.37$6.75488,200
2026-05-18$4.27$6.59599,000
2026-05-15$4.17$6.44700,200
2026-05-14$4.26$6.58445,100
2026-05-13$4.31$6.65512,400
2026-05-12$4.45$6.87629,500
2026-05-11$4.55$7.02498,800
2026-05-08$4.80$7.411,083,700
2026-05-07$4.73$7.30615,100
2026-05-06$4.70$7.26426,200
2026-05-05$4.64$7.16366,900
2026-05-04$4.63$7.15343,200
2026-05-01$4.60$7.10381,100
2026-04-30$4.60$7.10394,200
2026-04-29$4.53$6.99370,900
2026-04-28$4.59$7.09277,000
2026-04-27$4.56$7.04419,600
2026-04-24$4.57$7.06453,600
2026-04-23$4.53$6.99365,200
2026-04-22$4.51$6.96448,000
2026-04-21$4.44$6.85391,800
2026-04-20$4.57$7.06361,700
2026-04-17$4.76$7.35573,100
2026-04-16$4.64$7.16474,200
2026-04-15$4.70$7.26567,400