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 — 2015

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2015-12-31$0.42$0.42973,100
2015-12-30$0.39$0.39342,700
2015-12-29$0.37$0.37193,700
2015-12-28$0.34$0.34508,000
2015-12-24$0.31$0.31890,900
2015-12-23$0.38$0.38333,800
2015-12-22$0.62$0.6244,300
2015-12-21$0.70$0.7018,600
2015-12-18$0.70$0.70165,300
2015-12-17$0.77$0.7776,100
2015-12-16$0.56$0.56343,400
2015-12-15$0.52$0.52107,500
2015-12-14$0.55$0.55104,400
2015-12-11$0.55$0.5590,800
2015-12-10$0.55$0.5589,700
2015-12-09$0.56$0.5622,700
2015-12-08$0.57$0.57112,400
2015-12-07$0.55$0.5513,300
2015-12-04$0.57$0.57103,100
2015-12-03$0.60$0.6028,300
2015-12-02$0.62$0.6232,600
2015-12-01$0.65$0.6534,700
2015-11-30$0.65$0.6551,200
2015-11-27$0.61$0.6143,100
2015-11-25$0.57$0.5728,300
2015-11-24$0.60$0.6070,300
2015-11-23$0.63$0.6336,200
2015-11-20$0.65$0.6549,000
2015-11-19$0.62$0.6227,900
2015-11-18$0.62$0.6248,000
2015-11-17$0.65$0.6582,600
2015-11-16$0.58$0.58121,000
2015-11-13$0.59$0.5980,900
2015-11-12$0.62$0.62127,500
2015-11-11$0.65$0.6550,100
2015-11-10$0.60$0.6057,300
2015-11-09$0.70$0.7072,900
2015-11-06$0.76$0.7680,300
2015-11-05$0.78$0.78131,800
2015-11-04$0.79$0.7985,900
2015-11-03$0.80$0.8074,800
2015-11-02$0.85$0.85107,400
2015-10-30$0.75$0.7591,300
2015-10-29$0.79$0.7939,200
2015-10-28$0.85$0.8531,700
2015-10-27$0.92$0.9237,200
2015-10-26$0.83$0.8328,400
2015-10-23$0.82$0.8230,800
2015-10-22$0.89$0.8912,100
2015-10-21$0.94$0.9414,100
2015-10-20$0.95$0.957,200
2015-10-19$1.00$1.007,300
2015-10-16$1.02$1.0221,600
2015-10-15$1.00$1.0035,200
2015-10-14$0.92$0.9217,600
2015-10-13$1.05$1.0528,400
2015-10-12$1.07$1.0711,700
2015-10-09$1.20$1.2026,700
2015-10-08$0.97$0.9749,700
2015-10-07$0.95$0.95332,800
2015-10-06$1.40$1.4016,500
2015-10-05$1.45$1.4516,400
2015-10-02$1.30$1.3040,400
2015-10-01$1.48$1.4829,100
2015-09-30$1.18$1.1819,100
2015-09-29$1.14$1.148,000
2015-09-28$1.16$1.1636,300
2015-09-25$1.21$1.2120,200
2015-09-24$1.25$1.25123,600
2015-09-23$1.21$1.211,800
2015-09-22$1.23$1.2335,200
2015-09-21$1.21$1.2137,200
2015-09-18$1.21$1.21110,100
2015-09-17$1.26$1.2616,800
2015-09-16$1.30$1.3014,500
2015-09-15$1.33$1.3319,000
2015-09-14$1.27$1.2714,300
2015-09-11$1.30$1.3036,200
2015-09-10$1.25$1.252,000
2015-09-09$1.28$1.2812,200
2015-09-08$1.30$1.3025,500
2015-09-04$1.30$1.303,600
2015-09-03$1.32$1.323,700
2015-09-02$1.35$1.3519,200
2015-09-01$1.33$1.3346,200
2015-08-31$1.35$1.357,200
2015-08-28$1.32$1.323,400
2015-08-27$1.32$1.327,400
2015-08-26$1.32$1.329,600
2015-08-25$1.40$1.406,600
2015-08-24$1.30$1.3011,400
2015-08-21$1.28$1.287,200
2015-08-20$1.20$1.2038,600
2015-08-19$1.17$1.176,600
2015-08-18$1.17$1.1713,400
2015-08-17$1.19$1.1945,700
2015-08-14$1.05$1.0531,900
2015-08-13$1.07$1.078,100
2015-08-12$1.02$1.0211,200
2015-08-11$1.07$1.0720,900
2015-08-10$1.07$1.07474,500
2015-08-07$1.14$1.1433,300
2015-08-06$1.14$1.1435,600
2015-08-05$1.14$1.146,600
2015-08-04$1.15$1.1517,300
2015-08-03$1.15$1.1519,700
2015-07-31$1.18$1.1822,700
2015-07-30$1.17$1.17127,700
2015-07-29$1.10$1.1024,100
2015-07-28$1.15$1.15282,900
2015-07-27$1.29$1.295,300
2015-07-24$1.29$1.291,900
2015-07-23$1.30$1.304,000
2015-07-22$1.23$1.237,500
2015-07-21$1.30$1.3015,900
2015-07-20$1.35$1.3517,100
2015-07-17$1.38$1.38109,900
2015-07-16$1.38$1.3821,600
2015-07-15$1.37$1.3711,700
2015-07-14$1.35$1.3519,900
2015-07-13$1.30$1.3013,700
2015-07-10$1.30$1.3030,100
2015-07-09$1.29$1.297,800
2015-07-08$1.29$1.2934,900
2015-07-07$1.40$1.4015,700
2015-07-06$1.41$1.4123,400
2015-07-02$1.46$1.4632,500
2015-07-01$1.32$1.327,000
2015-06-30$1.29$1.2911,800
2015-06-29$1.30$1.305,900
2015-06-26$1.29$1.2935,800
2015-06-25$1.40$1.4038,200
2015-06-24$1.43$1.438,500
2015-06-23$1.44$1.4412,200
2015-06-22$1.43$1.4379,400
2015-06-19$1.55$1.5514,500
2015-06-18$1.55$1.5521,700
2015-06-17$1.52$1.526,800
2015-06-16$1.52$1.5214,200
2015-06-15$1.56$1.5613,800
2015-06-12$1.58$1.583,900
2015-06-11$1.55$1.5512,500
2015-06-10$1.55$1.5510,200
2015-06-09$1.55$1.5575,700
2015-06-08$1.51$1.5135,300
2015-06-05$1.60$1.6075,600
2015-06-04$1.55$1.5542,400
2015-06-03$1.67$1.6749,900
2015-06-02$1.75$1.7530,400
2015-06-01$1.86$1.864,000
2015-05-29$1.85$1.852,900
2015-05-28$1.81$1.8119,500
2015-05-27$1.90$1.907,800
2015-05-26$1.90$1.902,200
2015-05-22$1.90$1.9012,000
2015-05-21$1.91$1.9115,900
2015-05-20$1.90$1.9023,600
2015-05-19$1.95$1.9520,200
2015-05-18$2.00$2.0036,300
2015-05-15$2.00$2.0037,900
2015-05-14$2.00$2.0021,700
2015-05-13$2.06$2.063,400
2015-05-12$2.01$2.0113,600
2015-05-11$2.05$2.052,900
2015-05-08$2.06$2.0619,000
2015-05-07$1.85$1.8518,800
2015-05-06$1.85$1.8519,700
2015-05-05$1.75$1.7533,000
2015-05-04$1.65$1.6512,800
2015-05-01$1.65$1.6514,300
2015-04-30$1.77$1.7785,400
2015-04-29$1.68$1.684,200
2015-04-28$1.63$1.6317,200
2015-04-27$1.55$1.5513,200
2015-04-24$1.70$1.7020,400
2015-04-23$1.60$1.6051,700
2015-04-22$1.62$1.6221,700
2015-04-21$1.62$1.6228,100
2015-04-20$1.70$1.707,700
2015-04-17$1.70$1.7041,600
2015-04-16$1.68$1.6812,700
2015-04-15$1.65$1.6514,400
2015-04-14$1.69$1.69216,900
2015-04-13$1.65$1.6526,900
2015-04-10$1.77$1.7712,600
2015-04-09$1.85$1.8517,300
2015-04-08$1.81$1.8120,900
2015-04-07$1.80$1.8097,500
2015-04-06$1.89$1.8915,900
2015-04-02$1.92$1.9252,100
2015-04-01$2.00$2.0057,200
2015-03-31$1.94$1.9471,200
2015-03-30$2.05$2.050
2015-03-27$2.05$2.050
2015-03-26$2.05$2.050
2015-03-25$2.05$2.050
2015-03-24$2.05$2.050
2015-03-23$2.05$2.050
2015-03-20$2.05$2.050
2015-03-19$2.05$2.051,191,600
2015-03-18$2.26$2.2690,400
2015-03-17$2.35$2.35105,200
2015-03-16$2.43$2.43191,400
2015-03-13$2.46$2.46128,900
2015-03-12$2.57$2.57122,100
2015-03-11$2.57$2.571,016,500
2015-03-10$2.38$2.38310,100
2015-03-09$2.33$2.33202,400
2015-03-06$2.40$2.40224,400
2015-03-05$2.36$2.36517,800
2015-03-04$2.44$2.44225,200
2015-03-03$2.33$2.33159,600
2015-03-02$2.41$2.41458,400
2015-02-27$2.27$2.27115,700
2015-02-26$2.24$2.24232,100
2015-02-25$2.05$2.05146,000
2015-02-24$2.04$2.04247,700
2015-02-23$2.04$2.0462,600
2015-02-20$2.06$2.0685,600
2015-02-19$2.11$2.1154,400
2015-02-18$2.05$2.05106,600
2015-02-17$2.05$2.05103,300
2015-02-13$1.95$1.95181,100
2015-02-12$1.96$1.96886,300
2015-02-11$1.73$1.73410,800
2015-02-10$1.62$1.62342,600
2015-02-09$1.50$1.5051,900
2015-02-06$1.50$1.50107,200
2015-02-05$1.44$1.4450,800
2015-02-04$1.43$1.43102,100
2015-02-03$1.41$1.4143,400
2015-02-02$1.39$1.39109,500
2015-01-30$1.41$1.4187,700
2015-01-29$1.40$1.40164,800
2015-01-28$1.42$1.42131,700
2015-01-27$1.40$1.4047,900
2015-01-26$1.42$1.4235,600
2015-01-23$1.48$1.4881,500
2015-01-22$1.41$1.4142,700
2015-01-21$1.40$1.4076,800
2015-01-20$1.42$1.4295,300
2015-01-16$1.44$1.4486,100
2015-01-15$1.51$1.51237,100
2015-01-14$1.57$1.5738,400
2015-01-13$1.60$1.6079,500
2015-01-12$1.61$1.6167,200
2015-01-09$1.55$1.55138,200
2015-01-08$1.66$1.66121,700
2015-01-07$1.69$1.69593,500
2015-01-06$1.43$1.43159,200
2015-01-05$1.41$1.4145,900
2015-01-02$1.40$1.4036,700