Michael Weiner MD
Insider
First SEC filing: June 6, 2005 · Latest: June 6, 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 |
|---|---|---|---|---|---|---|---|---|---|
| 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 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-05) |
| March 13, 2014 | SIGA | S | 15,000 | $3.19 | $47,850 | 0 Direct | -100.00% | Disposed | 9.1% (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 | · | · | 15,000 Direct | · | 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 27, 2011 | SIGA | S | 10,000 | $14.15 | $141,500 | 0 Direct | -100.00% | Disposed | -75.4% (price as of 2026-10-05) |
| May 19, 2011 | SIGA | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| May 19, 2011 | SIGA | S | 9,000 | $14.01 | $126,090 | 10,000 Direct | -47.37% | Disposed | -75.2% (price as of 2026-10-05) |
| May 19, 2011 | SIGA | M | 10,000 | $3.73 | $37,300 | 19,000 Direct | +111.11% | Acquired | -6.7% (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) |
| March 30, 2010 | SIGA | S | 10,000 | $6.47 | $64,700 | 39,000 Direct | -20.41% | Disposed | -46.2% (price as of 2026-10-05) |
| March 29, 2010 | SIGA | S | 11,000 | $6.83 | $75,130 | 49,000 Direct | -18.33% | Disposed | -49.0% (price as of 2026-10-05) |
| Dec. 1, 2009 | SIGA | S | 20,000 | $9.01 | $180,200 | 60,000 Direct | -25.00% | Disposed | -61.4% (price as of 2026-10-05) |
| Aug. 6, 2009 | SIGA | S | 2,300 | $7.76 | $17,848 | 80,000 Direct | -2.79% | Disposed | -55.2% (price as of 2026-10-05) |
| Aug. 6, 2009 | SIGA | S | 2,700 | $7.69 | $20,763 | 82,300 Direct | -3.18% | Disposed | -54.7% (price as of 2026-10-05) |
| Aug. 6, 2009 | SIGA | S | 5,000 | $7.60 | $38,000 | 85,000 Direct | -5.56% | Disposed | -54.2% (price as of 2026-10-05) |
| Aug. 6, 2009 | SIGA | S | 5,000 | $7.61 | $38,050 | 90,000 Direct | -5.26% | Disposed | -54.3% (price as of 2026-10-05) |
| Aug. 6, 2009 | SIGA | S | 5,000 | $7.63 | $38,150 | 95,000 Direct | -5.00% | Disposed | -54.4% (price as of 2026-10-05) |
| Aug. 6, 2009 | SIGA | S | 5,000 | $7.77 | $38,850 | 100,000 Direct | -4.76% | Disposed | -55.2% (price as of 2026-10-05) |
| Aug. 6, 2009 | SIGA | S | 5,000 | $7.79 | $38,950 | 105,000 Direct | -4.55% | Disposed | -55.3% (price as of 2026-10-05) |
| May 13, 2009 | SIGA | S | 1,601 | $6.26 | $10,022 | 110,000 Direct | -1.43% | Disposed | -44.4% (price as of 2026-10-05) |
| May 13, 2009 | SIGA | S | 1,800 | $6.05 | $10,890 | 111,601 Direct | -1.59% | Disposed | -42.5% (price as of 2026-10-05) |
| May 13, 2009 | SIGA | S | 2,000 | $6.09 | $12,180 | 113,401 Direct | -1.73% | Disposed | -42.9% (price as of 2026-10-05) |
| May 13, 2009 | SIGA | S | 3,600 | $6.02 | $21,672 | 115,401 Direct | -3.03% | Disposed | -42.2% (price as of 2026-10-05) |
| May 13, 2009 | SIGA | S | 3,600 | $6.09 | $21,924 | 119,001 Direct | -2.94% | Disposed | -42.9% (price as of 2026-10-05) |
| May 13, 2009 | SIGA | S | 7,399 | $6.12 | $45,282 | 122,601 Direct | -5.69% | Disposed | -43.1% (price as of 2026-10-05) |
| May 13, 2009 | SIGA | A | 10,000 | · | · | 110,000 Direct | +10.00% | Acquired | (price as of 2026-10-05) |
| March 17, 2009 | SIGA | S | 5,000 | $5.00 | $25,000 | 120,000 Direct | -4.00% | Disposed | -30.4% (price as of 2026-10-05) |
| March 17, 2009 | SIGA | S | 4,000 | $5.02 | $20,080 | 125,000 Direct | -3.10% | Disposed | -30.7% (price as of 2026-10-05) |
| March 17, 2009 | SIGA | S | 5,000 | $5.07 | $25,350 | 129,000 Direct | -3.73% | Disposed | -31.4% (price as of 2026-10-05) |
| March 17, 2009 | SIGA | S | 6,000 | $5.00 | $30,000 | 134,000 Direct | -4.29% | Disposed | -30.4% (price as of 2026-10-05) |
| May 14, 2008 | SIGA | A | 10,000 | · | · | 152,500 Direct | +7.02% | Acquired | (price as of 2026-10-05) |
| Dec. 3, 2007 | SIGA | S | 9,500 | $3.38 | $32,110 | 142,500 Direct | -6.25% | Disposed | 3.0% (price as of 2026-10-05) |
| Nov. 20, 2007 | SIGA | S | 3,000 | $3.38 | $10,140 | 152,000 Direct | -1.94% | Disposed | 3.0% (price as of 2026-10-05) |
| May 30, 2007 | SIGA | A | 10,000 | · | · | 142,500 Direct | +7.55% | Acquired | (price as of 2026-10-05) |
| Dec. 19, 2006 | SIGA | A | 10,000 | · | · | 132,500 Direct | +8.16% | Acquired | (price as of 2026-10-05) |
| June 2, 2005 | SIGA | A | 10,000 | · | · | 122,500 Direct | +8.89% | Acquired | (price as of 2026-10-05) |
| Nov. 24, 2003 | SIGA | G | 12,500 | · | · | 112,500 Direct | -10.00% | Disposed | (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 |
|---|---|---|---|---|---|---|---|
| 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 | $3.73 | May 30, 2017 | 10,000 | 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 Opton (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 (Richt to buy) | Common Stock, par value $.0001 per share | $1.35 | June 2, 2015 | 10,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).