Steven W Weldon
Insider
First SEC filing: Feb. 12, 2016 · Latest: Feb. 12, 2016
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
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 22, 2020 | GTBP | S 10b5-1 | 47,978 | $0.40 | $19,191 | 3,720,000 Direct | -1.27% | Disposed | -99.9% (price as of 2026-10-02) |
| Dec. 21, 2020 | GTBP | S 10b5-1 | 50,000 | $0.30 | $15,000 | 3,853,700 Direct | -1.28% | Disposed | -99.8% (price as of 2026-10-02) |
| Dec. 21, 2020 | GTBP | S 10b5-1 | 50,000 | $0.33 | $16,500 | 3,803,700 Direct | -1.30% | Disposed | -99.9% (price as of 2026-10-02) |
| Dec. 21, 2020 | GTBP | S 10b5-1 | 35,722 | $0.34 | $12,145 | 3,767,978 Direct | -0.94% | Disposed | -99.9% (price as of 2026-10-02) |
| Dec. 18, 2020 | GTBP | S 10b5-1 | 50,000 | $0.30 | $15,000 | 3,903,700 Direct | -1.26% | Disposed | -99.8% (price as of 2026-10-02) |
| Dec. 17, 2020 | GTBP | S 10b5-1 | 50,000 | $0.30 | $15,000 | 4,003,700 Direct | -1.23% | Disposed | -99.8% (price as of 2026-10-02) |
| Dec. 17, 2020 | GTBP | S 10b5-1 | 50,000 | $0.31 | $15,500 | 3,953,700 Direct | -1.25% | Disposed | -99.8% (price as of 2026-10-02) |
| Dec. 16, 2020 | GTBP | S 10b5-1 | 50,000 | $0.30 | $15,000 | 4,053,700 Direct | -1.22% | Disposed | -99.8% (price as of 2026-10-02) |
| Dec. 15, 2020 | GTBP | S 10b5-1 | 50,000 | $0.30 | $15,000 | 4,203,700 Direct | -1.18% | Disposed | -99.8% (price as of 2026-10-02) |
| Dec. 15, 2020 | GTBP | S 10b5-1 | 50,000 | $0.30 | $15,000 | 4,153,700 Direct | -1.19% | Disposed | -99.8% (price as of 2026-10-02) |
| Dec. 15, 2020 | GTBP | S 10b5-1 | 50,000 | $0.32 | $16,000 | 4,103,700 Direct | -1.20% | Disposed | -99.9% (price as of 2026-10-02) |
| Dec. 14, 2020 | GTBP | S 10b5-1 | 50,000 | $0.28 | $14,000 | 4,350,000 Direct | -1.14% | Disposed | -99.8% (price as of 2026-10-02) |
| Dec. 14, 2020 | GTBP | S 10b5-1 | 50,000 | $0.29 | $14,500 | 4,300,000 Direct | -1.15% | Disposed | -99.8% (price as of 2026-10-02) |
| Dec. 14, 2020 | GTBP | S 10b5-1 | 46,300 | $0.29 | $13,427 | 4,253,700 Direct | -1.08% | Disposed | -99.8% (price as of 2026-10-02) |
| Dec. 11, 2020 | GTBP | S 10b5-1 | 50,000 | $0.25 | $12,500 | 4,450,000 Direct | -1.11% | Disposed | -99.8% (price as of 2026-10-02) |
| Dec. 11, 2020 | GTBP | S 10b5-1 | 50,000 | $0.26 | $13,000 | 4,400,000 Direct | -1.12% | Disposed | -99.8% (price as of 2026-10-02) |
| May 13, 2020 | GTBP | S | 2,269,708 | · | · | 4,500,000 Direct | -33.53% | Disposed | (price as of 2026-10-02) |
| Aug. 14, 2019 | GTBP | A | 4,500,000 | · | · | 6,769,707 Direct | +198.26% | Acquired | (price as of 2026-10-02) |
| Sept. 1, 2017 | GTBP | A | 2,566,835 | · | · | 2,568,840 Direct | +128021.70% | 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.
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 12, 2016 | GTBP | Common Stock | 601,610 | Direct |