Insider at

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Insider transactions

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0 buys (P) 0 sells (S) Net: $0 + 2 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

2 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Dec. 27, 2010 GTBP S 360,100 $0.13 $46,813 0 Direct -100.00% Disposed -100.0% (price as of 2026-10-02)
Dec. 23, 2010 GTBP S 339,900 $0.13 $44,187 360,100 Direct -48.56% 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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Dec. 23, 2010 GTBP 0% Convertible Debenture Common Stock (700,000) $0.05 Sept. 30, 2011 700,000 Disposed

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

Initial ownership (Form 3) 6 holdings

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

DateTickerSecuritySharesOwnership
Jan. 19, 2011 GTBP Series A Warrant→ Common Stock · Direct
Jan. 19, 2011 GTBP Series B Warrant→ Common Stock · Direct
March 25, 2010 GTBP Series H Convertible Preferred Stock→ Common Stock · Direct
March 25, 2010 GTBP 0% Convertible Debenture→ Common Stock · Direct
March 25, 2010 GTBP Series A Warrant→ Common Stock · Direct
March 25, 2010 GTBP Series B Warrant→ Common Stock · Direct