Steven T Guillen

Insider

First SEC filing: Dec. 30, 2005 · Latest: Dec. 30, 2005

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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
Dec. 28, 2005	GTBP	A	500,000	$0.29	$145,000	1,100,000 Direct	+83.33%	Acquired	-99.8% (price as of 2026-08-21)
Feb. 28, 2005	GTBP	A	100,000	$0.40	$40,000	1,200,000 Direct	+9.09%	Acquired	-99.9% (price as of 2026-08-21)
Feb. 28, 2005	GTBP	A	500,000	$0.40	$200,000	1,100,000 Direct	+83.33%	Acquired	-99.9% (price as of 2026-08-21)
Feb. 28, 2005	GTBP	A	600,000	$0.40	$240,000	600,000 Direct	—	Acquired	-99.9% (price as of 2026-08-21)

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
Dec. 28, 2005	GTBP	Non-Statutory Stock Option (right to buy)	common stock (500,000)	$0.29	Dec. 27, 2015	500,000	Acquired
Feb. 28, 2005	GTBP	Stock Option-Right to buy (NQSO)	Common Stock (100,000)	$0.40	Feb. 28, 2015	100,000	Acquired
Feb. 28, 2005	GTBP	Stock Option-Right to buy (ISO)	Common Stock (500,000)	$0.40	Feb. 28, 2015	500,000	Acquired

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

Matched by name from proxy statements (DEF 14A) — verify against the filing.

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2005	$209,000	—	—	—	—	—	—	—

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.