Scott M Hammer

Insider

First SEC filing: Jan. 11, 2007 · Latest: Jan. 11, 2007

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 4 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

No open-market trades on record; showing all filings.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
May 13, 2010	SIGA	A	10,000	—	—	10,000 Direct	—	Acquired	(price as of 2026-08-20)
May 13, 2009	SIGA	A	10,000	—	—	55,000 Direct	+22.22%	Acquired	(price as of 2026-08-20)
May 14, 2008	SIGA	A	10,000	—	—	45,000 Direct	+28.57%	Acquired	(price as of 2026-08-20)
May 30, 2007	SIGA	A	10,000	—	—	35,000 Direct	+40.00%	Acquired	(price as of 2026-08-20)

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.

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
May 13, 2010	SIGA	Stock Option (Right to buy)	Common Stock, par value $.0001 per share (10,000)	$7.71	May 13, 2020	10,000	Acquired
May 13, 2009	SIGA	Stock Option (Right to buy)	Common Stock, par value $.0001 per share (10,000)	$6.17	May 13, 2019	10,000	Acquired
May 14, 2008	SIGA	Stock Option (Right to Buy)	Common Stock, Par Value $.0001 per share (10,000)	$3.53	May 14, 2018	10,000	Acquired
May 30, 2007	SIGA	Stock Option (Right to buy)	Common Stock, par value $.0001 per share (10,000)	$3.73	May 30, 2017	10,000	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Jan. 11, 2007	SIGA	Stock Option (Right to buy)→ Common Stock, par value $.0001 per share (25,000)	25,000	Direct