James Antal
Insider
First SEC filing: Feb. 9, 2005 · Latest: Feb. 9, 2005
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 14, 2022 | SIGA | A | 14,620 | · | · | 14,620 Direct | · | Acquired | (price as of 2026-10-05) |
| June 14, 2022 | SIGA | M | 22,831 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| June 14, 2022 | SIGA | D | 6,849 | $10.26 | $70,271 | 116,857 Direct | -5.54% | Disposed | -66.1% (price as of 2026-10-05) |
| June 14, 2022 | SIGA | M | 22,831 | · | · | 123,706 Direct | +22.63% | Acquired | (price as of 2026-10-05) |
| Dec. 9, 2021 | SIGA | S | 30,000 | $7.82 | $234,600 | 100,875 Direct | -22.92% | Disposed | -55.5% (price as of 2026-10-05) |
| June 15, 2021 | SIGA | A | 22,831 | · | · | 22,831 Direct | · | Acquired | (price as of 2026-10-05) |
| June 15, 2021 | SIGA | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| June 15, 2021 | SIGA | M | 15,000 | · | · | 130,875 Direct | +12.94% | Acquired | (price as of 2026-10-05) |
| Aug. 27, 2020 | SIGA | S | 30,000 | $7.10 | $213,000 | 115,875 Direct | -20.57% | Disposed | -51.0% (price as of 2026-10-05) |
| June 16, 2020 | SIGA | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 21, 2020 | SIGA | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 21, 2020 | SIGA | M | 15,000 | · | · | 145,875 Direct | +11.46% | Acquired | (price as of 2026-10-05) |
| June 5, 2019 | SIGA | S | 30,000 | $5.70 | $171,000 | 130,875 Direct | -18.65% | Disposed | -38.9% (price as of 2026-10-05) |
| May 22, 2019 | SIGA | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 22, 2019 | SIGA | M | 15,000 | · | · | 160,875 Direct | +10.28% | Acquired | (price as of 2026-10-05) |
| May 21, 2019 | SIGA | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 23, 2018 | SIGA | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 23, 2018 | SIGA | M | 15,000 | · | · | 145,875 Direct | +11.46% | Acquired | (price as of 2026-10-05) |
| May 22, 2018 | SIGA | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-05) |
| April 18, 2018 | SIGA | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| April 18, 2018 | SIGA | F | 5,612 | $6.29 | $35,299 | 130,875 Direct | -4.11% | Disposed | -44.7% (price as of 2026-10-05) |
| April 18, 2018 | SIGA | M | 10,000 | $3.53 | $35,300 | 136,487 Direct | +7.91% | Acquired | -1.4% (price as of 2026-10-05) |
| May 23, 2017 | SIGA | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 17, 2017 | SIGA | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 17, 2017 | SIGA | M | 15,000 | · | · | 126,487 Direct | +13.45% | Acquired | (price as of 2026-10-05) |
| Nov. 16, 2016 | SIGA | M | 30,333 | $45500.00 | $1,380,151,500 | 111,487 Direct | +37.38% | Acquired | -100.0% (price as of 2026-10-05) |
| May 17, 2016 | SIGA | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 14, 2016 | SIGA | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 14, 2016 | SIGA | M | 15,000 | · | · | 81,154 Direct | +22.67% | Acquired | (price as of 2026-10-05) |
| May 28, 2015 | SIGA | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 28, 2015 | SIGA | M | 10,000 | $1.22 | $12,200 | 66,154 Direct | +17.81% | Acquired | 185.2% (price as of 2026-10-05) |
| May 15, 2015 | SIGA | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 15, 2015 | SIGA | M | 15,000 | · | · | 56,154 Direct | +36.45% | Acquired | (price as of 2026-10-05) |
| May 14, 2015 | SIGA | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 15, 2014 | SIGA | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 15, 2014 | SIGA | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 15, 2014 | SIGA | M | 15,000 | · | · | 41,154 Direct | +57.35% | Acquired | (price as of 2026-10-05) |
| May 23, 2013 | SIGA | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 23, 2013 | SIGA | M | 15,000 | · | · | 26,154 Direct | +134.48% | Acquired | (price as of 2026-10-05) |
| May 15, 2013 | SIGA | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 23, 2012 | SIGA | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 19, 2011 | SIGA | M | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 19, 2011 | SIGA | S | 25,000 | $13.64 | $341,000 | 11,154 Direct | -69.15% | Disposed | -74.5% (price as of 2026-10-05) |
| May 19, 2011 | SIGA | M | 25,000 | $1.47 | $36,750 | 36,154 Direct | +224.13% | Acquired | 136.7% (price as of 2026-10-05) |
| May 17, 2011 | SIGA | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 13, 2010 | SIGA | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 13, 2009 | SIGA | A | 10,000 | · | · | 75,000 Direct | +15.38% | Acquired | (price as of 2026-10-05) |
| May 14, 2008 | SIGA | A | 10,000 | · | · | 65,000 Direct | +18.18% | Acquired | (price as of 2026-10-05) |
| May 30, 2007 | SIGA | A | 10,000 | · | · | 55,000 Direct | +22.22% | Acquired | (price as of 2026-10-05) |
| Dec. 19, 2006 | SIGA | A | 10,000 | · | · | 45,000 Direct | +28.57% | Acquired | (price as of 2026-10-05) |
| June 2, 2005 | SIGA | A | 10,000 | · | · | 35,000 Direct | +40.00% | Acquired | (price as of 2026-10-05) |
| Dec. 14, 2004 | SIGA | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-05) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| June 14, 2022 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 14,620 | Acquired |
| June 14, 2022 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 22,831 | Disposed |
| June 15, 2021 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 22,831 | Acquired |
| June 15, 2021 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Disposed |
| June 16, 2020 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Acquired |
| May 21, 2020 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Disposed |
| May 22, 2019 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Disposed |
| May 21, 2019 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Acquired |
| May 23, 2018 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Disposed |
| May 22, 2018 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Acquired |
| April 18, 2018 | SIGA | Stock Option (Right to Buy) | Common Stock, par value $.0001 per share | $3.53 | May 14, 2018 | 10,000 | Disposed |
| May 23, 2017 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Acquired |
| May 17, 2017 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Disposed |
| May 17, 2016 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Acquired |
| May 14, 2016 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Disposed |
| May 28, 2015 | SIGA | Stock Option (right to buy) | Common Stock, par value $.0001 per share | $1.22 | June 2, 2015 | 10,000 | Disposed |
| May 15, 2015 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Disposed |
| May 14, 2015 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Acquired |
| May 15, 2014 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Acquired |
| May 15, 2014 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Disposed |
| May 23, 2013 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Disposed |
| May 15, 2013 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Acquired |
| May 23, 2012 | SIGA | Restricted Stock Units | Common Stock, par value $.0001 per share | · | · | 15,000 | Acquired |
| May 19, 2011 | SIGA | Stock Option (Right to buy) | Common Stock, par value $.0001 per share | $1.47 | Dec. 14, 2014 | 25,000 | Disposed |
| May 17, 2011 | SIGA | Stock Option (Right to buy) | Common Stock, par value $.0001 per share | $14.22 | May 17, 2021 | 10,000 | Acquired |
| May 13, 2010 | SIGA | Stock Option (Right to buy) | Common Stock, par value $.0001 per share | $7.71 | May 13, 2020 | 10,000 | Acquired |
| May 13, 2009 | SIGA | Stock Option (Right to buy) | Common Stock, par value $.0001 per share | $6.17 | May 13, 2019 | 10,000 | Acquired |
| May 14, 2008 | SIGA | Stock Option (Right to Buy) | Common Stock, Par Value $.0001 per share | $3.53 | May 14, 2018 | 10,000 | Acquired |
| May 30, 2007 | SIGA | Stock Option (Right to buy) | Common Stock, par value $.0001 per share | $3.73 | May 30, 2017 | 10,000 | Acquired |
| Dec. 19, 2006 | SIGA | Stock Option (Right to buy) | Common Stock, par value $.0001 per share | $2.72 | Dec. 19, 2016 | 10,000 | Acquired |
| June 2, 2005 | SIGA | Stock Option (Right to buy) | Common Stock, par value $.0001 per share | $1.35 | June 2, 2015 | 10,000 | Acquired |
| Dec. 14, 2004 | SIGA | Stock Option (Right to buy) | Common Stock, par value $.0001 per share | $0.00 | Dec. 14, 2014 | 25,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 9, 2005 | SIGA | Common Stock, par value $.0001 per share | 11,154 | Direct |