On this page
Thomas M Wolf
Insider
First SEC filing: Dec. 30, 2003 · Latest: Dec. 30, 2003
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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 4, 2003 | GTBP | A | 12,280 | $0.57 | $7,000 | 90,780 Direct | -11.92% | Disposed | -100.0% (price as of 2026-10-02) |
| Dec. 4, 2003 | GTBP | A | 22,281 | $0.57 | $12,700 | 100,781 Direct | -18.11% | Disposed | -100.0% (price as of 2026-10-02) |
| July 29, 2003 | GTBP | X | 43,500 | $0.20 | $8,700 | 78,500 Direct | -35.66% | Disposed | -100.0% (price as of 2026-10-02) |
| June 30, 2003 | GTBP | C | 332,845 | · | · | 433,626 Direct | +330.27% | Acquired | (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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Dec. 4, 2003 | GTBP | Stock Option (right to buy) | common stock | $0.57 | Dec. 3, 2013 | 12,280 | Disposed |
| Dec. 4, 2003 | GTBP | Stock Option (right to buy) | common stock | $0.57 | Dec. 3, 2013 | 22,281 | Disposed |
| June 30, 2003 | GTBP | Preferred Stock to Common Stock | common stock | $0.00 | June 29, 2013 | 332,845 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).