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 — 1999

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
1999-12-31$1.63$1.6328,400——
1999-12-30$1.44$1.4415,700——
1999-12-29$1.50$1.5026,900——
1999-12-28$1.56$1.5610,700——
1999-12-27$1.50$1.503,000——
1999-12-23$1.50$1.509,200——
1999-12-22$1.50$1.5024,100——
1999-12-21$1.31$1.3125,700——
1999-12-20$1.63$1.6312,300——
1999-12-17$1.81$1.8111,200——
1999-12-16$1.50$1.5036,900——
1999-12-15$1.50$1.5010,000——
1999-12-14$1.50$1.5021,100——
1999-12-13$1.75$1.759,500——
1999-12-10$1.94$1.9423,400——
1999-12-09$1.94$1.9413,400——
1999-12-08$1.75$1.7513,500——
1999-12-07$1.69$1.6913,600——
1999-12-06$1.69$1.6918,900——
1999-12-03$1.75$1.7551,000——
1999-12-02$1.81$1.8159,000——
1999-12-01$1.75$1.7566,700——
1999-11-30$1.75$1.7544,300——
1999-11-29$2.09$2.0957,300——
1999-11-26$1.25$1.250——
1999-11-24$1.25$1.252,000——
1999-11-23$1.44$1.441,100——
1999-11-22$1.50$1.502,700——
1999-11-19$1.50$1.5053,700——
1999-11-18$1.38$1.3817,500——
1999-11-17$1.38$1.3823,800——
1999-11-16$1.20$1.2011,900——
1999-11-15$1.38$1.381,000——
1999-11-12$1.27$1.271,100——
1999-11-11$1.16$1.164,400——
1999-11-10$1.19$1.197,000——
1999-11-09$1.38$1.386,200——
1999-11-08$1.16$1.1654,400——
1999-11-05$1.13$1.121,000——
1999-11-04$1.16$1.160——
1999-11-03$1.16$1.162,800——
1999-11-02$1.25$1.2511,700——
1999-11-01$1.25$1.250——
1999-10-29$1.25$1.258,300——
1999-10-28$1.25$1.25300——
1999-10-27$1.13$1.122,800——
1999-10-26$1.25$1.2515,100——
1999-10-25$1.25$1.2516,100——
1999-10-22$1.22$1.2210,900——
1999-10-21$1.06$1.0635,100——
1999-10-20$1.13$1.12200——
1999-10-19$1.13$1.123,000——
1999-10-18$0.97$0.9720,100——
1999-10-15$1.13$1.127,000——
1999-10-14$1.38$1.382,300——
1999-10-13$1.13$1.12500——
1999-10-12$1.25$1.252,600——
1999-10-11$1.44$1.440——
1999-10-08$1.44$1.4412,800——
1999-10-07$1.34$1.344,000——
1999-10-06$1.19$1.1918,100——
1999-10-05$1.25$1.2549,000——
1999-10-04$1.16$1.160——
1999-10-01$1.16$1.16500——
1999-09-30$1.00$1.0027,500——
1999-09-29$1.00$1.0021,900——
1999-09-28$1.09$1.0915,400——
1999-09-27$1.13$1.125,900——
1999-09-24$1.13$1.123,200——
1999-09-23$1.09$1.09300——
1999-09-22$1.06$1.068,900——
1999-09-21$1.19$1.190——
1999-09-20$1.19$1.192,000——
1999-09-17$1.25$1.2545,800——
1999-09-16$1.03$1.0315,400——
1999-09-15$1.13$1.1257,500——
1999-09-14$1.13$1.1287,000——
1999-09-13$1.19$1.199,200——
1999-09-10$1.00$1.0027,100——
1999-09-09$1.00$1.00264,200——
1999-09-08$0.81$0.815,500——
1999-09-07$0.69$0.6933,400——
1999-09-03$0.69$0.692,000——
1999-09-02$0.69$0.6911,200——
1999-09-01$0.91$0.91100——
1999-08-31$0.88$0.870——
1999-08-30$0.88$0.870——
1999-08-27$0.88$0.87500——
1999-08-26$0.88$0.8713,000——
1999-08-25$1.00$1.006,000——
1999-08-24$0.81$0.815,800——
1999-08-23$0.81$0.8113,100——
1999-08-20$0.81$0.817,400——
1999-08-19$0.81$0.81700——
1999-08-18$0.78$0.781,000——
1999-08-17$0.75$0.750——
1999-08-16$0.75$0.7512,100——
1999-08-13$1.00$1.008,200——
1999-08-12$0.97$0.9711,300——
1999-08-11$0.94$0.942,500——
1999-08-10$0.84$0.8411,000——
1999-08-09$0.88$0.8718,000——
1999-08-06$1.03$1.033,600——
1999-08-05$1.00$1.0010,000——
1999-08-04$1.00$1.000——
1999-08-03$1.00$1.0021,900——
1999-08-02$1.00$1.0020,200——
1999-07-30$1.06$1.063,000——
1999-07-29$1.06$1.065,000——
1999-07-28$1.13$1.123,000——
1999-07-27$1.19$1.1922,100——
1999-07-26$1.13$1.120——
1999-07-23$1.13$1.12400——
1999-07-22$1.13$1.1231,200——
1999-07-21$1.25$1.25500——
1999-07-20$1.25$1.250——
1999-07-19$1.25$1.251,500——
1999-07-16$1.16$1.1614,500——
1999-07-15$1.28$1.281,200——
1999-07-14$1.41$1.4191,900——
1999-07-13$1.19$1.1945,200——
1999-07-12$1.19$1.1948,600——
1999-07-09$1.06$1.0690,200——
1999-07-08$1.19$1.1921,100——
1999-07-07$1.00$1.0032,000——
1999-07-06$0.88$0.8712,000——
1999-07-02$1.06$1.0610,300——
1999-07-01$1.00$1.0012,100——
1999-06-30$1.13$1.123,000——
1999-06-29$1.00$1.00300——
1999-06-28$1.00$1.0029,500——
1999-06-25$1.00$1.000——
1999-06-24$1.00$1.000——
1999-06-23$1.00$1.0020,300——
1999-06-22$1.06$1.061,200——
1999-06-21$1.19$1.194,200——
1999-06-18$1.13$1.120——
1999-06-17$1.13$1.120——
1999-06-16$1.13$1.120——
1999-06-15$1.13$1.12800——
1999-06-14$1.00$1.000——
1999-06-11$1.00$1.0050,000——
1999-06-10$1.06$1.060——
1999-06-09$1.06$1.063,500——
1999-06-08$1.09$1.0929,900——
1999-06-07$1.03$1.0365,100——
1999-06-04$1.03$1.030——
1999-06-03$1.03$1.031,900——
1999-06-02$1.03$1.0310,100——
1999-06-01$1.06$1.06500——
1999-05-28$1.28$1.280——
1999-05-27$1.28$1.280——
1999-05-26$1.28$1.280——
1999-05-25$1.28$1.280——
1999-05-24$1.28$1.2814,400——
1999-05-21$1.03$1.0313,300——
1999-05-20$1.38$1.387,000——
1999-05-19$1.31$1.313,000——
1999-05-18$1.31$1.314,000——
1999-05-17$1.31$1.3144,600——
1999-05-14$1.19$1.197,300——
1999-05-13$1.06$1.0611,500——
1999-05-12$1.00$1.000——
1999-05-11$1.00$1.002,000——
1999-05-10$1.06$1.060——
1999-05-07$1.06$1.0628,500——
1999-05-06$1.19$1.19200——
1999-05-05$1.00$1.003,100——
1999-05-04$1.00$1.006,600——
1999-05-03$1.06$1.060——
1999-04-30$1.06$1.06500——
1999-04-29$1.06$1.06700——
1999-04-28$1.06$1.06300——
1999-04-27$1.13$1.120——
1999-04-26$1.13$1.122,000——
1999-04-23$1.06$1.060——
1999-04-22$1.06$1.061,000——
1999-04-21$1.03$1.03300——
1999-04-20$1.44$1.440——
1999-04-19$1.44$1.44100——
1999-04-16$0.81$0.81600——
1999-04-15$1.25$1.25600——
1999-04-14$1.00$1.00800——
1999-04-13$1.00$1.002,800——
1999-04-12$1.28$1.280——
1999-04-09$1.28$1.286,100——
1999-04-08$1.22$1.220——
1999-04-07$1.22$1.2210,800——
1999-04-06$0.81$0.814,000——
1999-04-05$1.00$1.004,300——
1999-04-01$1.00$1.0015,000——
1999-03-31$1.13$1.1213,600——
1999-03-30$1.25$1.252,800——
1999-03-29$1.25$1.25900——
1999-03-26$1.00$1.004,500——
1999-03-25$1.03$1.033,100——
1999-03-24$1.03$1.03800——
1999-03-23$1.06$1.062,000——
1999-03-22$1.13$1.12500——
1999-03-19$1.13$1.127,500——
1999-03-18$1.13$1.121,300——
1999-03-17$1.13$1.120——
1999-03-16$1.13$1.121,500——
1999-03-15$1.25$1.253,000——
1999-03-12$1.13$1.12600——
1999-03-11$1.38$1.387,400——
1999-03-10$1.25$1.255,100——
1999-03-09$1.31$1.312,600——
1999-03-08$1.25$1.258,900——
1999-03-05$1.25$1.250——
1999-03-04$1.25$1.2512,800——
1999-03-03$1.38$1.380——
1999-03-02$1.38$1.381,000——
1999-03-01$1.25$1.25400——
1999-02-26$1.25$1.2510,000——
1999-02-25$1.44$1.443,100——
1999-02-24$1.44$1.441,000——
1999-02-23$1.63$1.633,000——
1999-02-22$1.69$1.690——
1999-02-19$1.69$1.6914,700——
1999-02-18$1.44$1.44700——
1999-02-17$1.56$1.560——
1999-02-16$1.56$1.56200——
1999-02-12$1.56$1.56300——
1999-02-11$1.50$1.500——
1999-02-10$1.50$1.501,900——
1999-02-09$1.50$1.5020,500——
1999-02-08$1.44$1.440——
1999-02-05$1.44$1.443,600——
1999-02-04$1.75$1.754,000——
1999-02-03$1.38$1.382,000——
1999-02-02$1.38$1.381,700——
1999-02-01$1.75$1.752,000——
1999-01-29$1.31$1.313,300——
1999-01-28$1.63$1.633,800——
1999-01-27$1.75$1.755,900——
1999-01-26$1.38$1.386,000——
1999-01-25$1.63$1.6311,300——
1999-01-22$1.50$1.50400——
1999-01-21$1.50$1.501,400——
1999-01-20$1.75$1.752,300——
1999-01-19$1.75$1.75700——
1999-01-15$1.88$1.88500——
1999-01-14$1.63$1.635,700——
1999-01-13$1.75$1.752,200——
1999-01-12$1.50$1.506,000——
1999-01-11$1.63$1.633,000——
1999-01-08$1.50$1.503,500——
1999-01-07$1.56$1.56100——
1999-01-06$1.81$1.815,200——
1999-01-05$1.56$1.564,700——
1999-01-04$1.75$1.757,100——