Marvin S Hausman MD
CIK 1067956 · View on SEC EDGAR ↗
First SEC filing: Nov. 8, 2006 · Latest: Nov. 8, 2006
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 6, 2006 | GTBP | A | 1,505,000 | — | — | 2,714,695 Direct | +124.41% | Acquired | (price as of 2026-08-21) |
| Nov. 6, 2006 | GTBP | A | 495,000 | — | — | 1,209,695 Direct | +69.26% | Acquired | (price as of 2026-08-21) |
| Nov. 6, 2006 | GTBP | A | 69,444 | $0.18 | $12,500 | 2,404,080 Direct | +2.97% | Acquired | -99.7% (price as of 2026-08-21) |
| Nov. 6, 2006 | GTBP | A | 500,000 | $0.20 | $100,000 | 2,334,636 Direct | +27.25% | Acquired | -99.7% (price as of 2026-08-21) |
| Nov. 6, 2006 | GTBP | A | 347,222 | $0.18 | $62,500 | 1,834,636 Direct | +23.34% | Acquired | -99.7% (price as of 2026-08-21) |
| Oct. 12, 2006 | GTBP | A | 330,769 | $0.20 | $66,154 | 330,769 Direct | — | Acquired | -99.7% (price as of 2026-08-21) |
| Aug. 1, 2006 | GTBP | A | 5,000 | — | — | 714,695 Direct | +0.70% | Acquired | (price as of 2026-08-21) |
| Dec. 28, 2005 | GTBP | A | 500,000 | $0.29 | $145,000 | 709,695 Direct | +238.44% | Acquired | -99.8% (price as of 2026-08-21) |
| Oct. 5, 2005 | GTBP | A | 108,000 | $0.37 | $39,960 | — Direct | — | Acquired | -99.8% (price as of 2026-08-21) |
| June 22, 2005 | GTBP | A | 5,000 | $0.34 | $1,700 | 101,695 Direct | +5.17% | Acquired | -99.8% (price as of 2026-08-21) |
| Oct. 12, 2004 | GTBP | A | 50,000 | $0.59 | $29,500 | 85,000 Direct | +142.86% | Acquired | -99.9% (price as of 2026-08-21) |
| Aug. 1, 2003 | GTBP | X | 43,500 | $0.20 | $8,700 | 78,500 Direct | -35.66% | Disposed | -99.7% (price as of 2026-08-21) |
| June 30, 2003 | GTBP | C | 1,113,145 | — | — | 1,191,145 Direct | +1427.11% | Acquired | (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.
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 |
|---|---|---|---|---|---|---|---|
| Nov. 6, 2006 | GTBP | Common Stock Warrant (right to buy) | Common Stock (1,505,000) | $0.20 | Nov. 5, 2016 | 1,505,000 | Acquired |
| Nov. 6, 2006 | GTBP | Non-Qualified Stock Option (right to buy) | Common Stock (495,000) | $0.20 | Nov. 5, 2016 | 495,000 | Acquired |
| Aug. 1, 2006 | GTBP | Non-Qualified Stock Option | Common Stock (5,000) | $0.27 | July 31, 2016 | 5,000 | Acquired |
| Dec. 28, 2005 | GTBP | Non-Statutory Stock Option (right to purchase) | common stock (500,000) | $0.29 | Dec. 27, 2015 | 500,000 | Acquired |
| Oct. 5, 2005 | GTBP | Non-Statutory Stock Option (Right to Buy) | Common Stock (108,000) | $0.37 | Oct. 4, 2015 | 108,000 | Acquired |
| June 22, 2005 | GTBP | Stock Option Grant (right to buy) | common stock (5,000) | $0.34 | June 21, 2015 | 5,000 | Acquired |
| Oct. 12, 2004 | GTBP | stock option (right to buy) | common stock (50,000) | $0.59 | Oct. 12, 2014 | 50,000 | Acquired |
| June 30, 2003 | GTBP | Prefered to Common Stock | Common Stock (1,113,145) | $0.00 | June 29, 2013 | 1,113,145 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.
Compensation (DEF 14A)
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 | — | — | — | — | — | — | — | — |
| 2004 | $2,004 | — | — | — | — | — | — | — |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.