Insider at

04

Insider transactions

05
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.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Dec. 4, 2003 GTBP A 1,754 $0.57 $1,000 31,754 Direct +5.85% Acquired -100.0% (price as of 2026-10-02)
Dec. 4, 2003 GTBP A 1,754 $0.57 $1,000 31,754 Direct -5.23% Disposed -100.0% (price as of 2026-10-02)
Sept. 30, 2003 GTBP A 30,000 $0.38 $11,400 30,000 Direct -50.00% Disposed -100.0% (price as of 2026-10-02)
Sept. 30, 2003 GTBP A 30,000 $0.38 $11,400 30,000 Direct -50.00% Disposed -100.0% (price as of 2026-10-02)

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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Dec. 4, 2003 GTBP Stock Option (right to buy) common stock (1,754) $0.57 Dec. 3, 2013 1,754 Acquired
Dec. 4, 2003 GTBP Stock Option (right to buy) common stock (1,754) $0.57 Dec. 3, 2013 1,754 Disposed
Sept. 30, 2003 GTBP Stock Option (right to buy) Common Stock (30,000) $0.38 Sept. 30, 2013 30,000 Disposed
Sept. 30, 2003 GTBP Stock Option (right to buy) Common Stock (30,000) $0.38 Sept. 29, 2013 30,000 Disposed

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