David Saloff
Insider
First SEC filing: July 11, 2011 · Latest: July 11, 2011
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 |
|---|---|---|---|---|---|---|---|---|---|
| March 1, 2012 | GTBP | A | 26,334,193 | $0.04 | $1,053,368 | 27,650,684 Direct | +2000.33% | Acquired | -100.0% (price as of 2026-10-02) |
| Aug. 31, 2011 | GTBP | A | 538,713 | $0.05 | $26,936 | 1,316,491 Direct | +69.26% | Acquired | -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.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| March 1, 2012 | GTBP | Common Stock Option | Common Stock | $0.04 | March 1, 2022 | 26,334,193 | Acquired |
| Aug. 31, 2011 | GTBP | Common Stock Option | Common Stock | $0.05 | Aug. 31, 2021 | 538,713 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 11, 2011 | GTBP | Common Stock Option | · | Direct |