William D Clark insider trades: iBio (IBIO) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where William reports to the SEC
Open-market buys and sales
20 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Jan 10, 2025 | IBIO | ↑ Buy | 1,838 | $2.72 | $5K | Direct | Jan 13, 2025 (3d) |
| Jun 2, 2022 | GNCA | ↓ Sell | 4,023 | $0.06 | $241 | Direct | Jun 3, 2022 (1d) |
| May 31, 2022 | GNCA | ↓ Sell | 117,244 | $0.06 | $7K | Direct | Jun 2, 2022 (2d) |
| Apr 4, 2022 | GNCA | ↓ Sell | 3,924 | $1.25 | $5K | Direct | Apr 5, 2022 (1d) |
| Mar 16, 2022 | GNCA | ↓ Sell | 11,435 | $1.10 | $13K | Direct | Mar 17, 2022 (1d) |
| Nov 10, 2020 | GNCA | ↑ Buy | 4,760 | $2.06 | $10K | Direct | Nov 10, 2020 (0d) |
| Jan 17, 2018 | GNCA | ↑ Buy | 25,000 | $0.80 | $20K | Direct | Jan 19, 2018 (2d) |
| Nov 7, 2016 | GNCA | ↑ Buy | 2,800 | $3.49 | $10K | Direct | Nov 9, 2016 (2d) |
| Dec 16, 2015 | GNCA | ↑ Buy | 3,800 | $6.45 | $25K | Direct | Dec 16, 2015 (0d) |
| Feb 19, 2010 | VNDA | ↓ Sell | 9,522 | $10.65 | $101K | Direct | Feb 23, 2010 (4d) |
| Dec 14, 2009 | VNDA | ↓ Sell | 217,749 | $11.05 | $2.4M | Direct | Dec 16, 2009 (2d) |
| Aug 7, 2008 | VNDA | ↑ Buy | 50,000 | $0.99 | $50K | Direct | Aug 11, 2008 (4d) |
| Oct 1, 2007 | VNDA | ↓ Sell | 3,200 | $13.87 | $44K | Direct | Oct 3, 2007 (2d) |
| Aug 1, 2007 | VNDA | ↓ Sell | 3,200 | $18.84 | $60K | Direct | Aug 3, 2007 (2d) |
| Jun 1, 2007 | VNDA | ↓ Sell | 3,200 | $20.11 | $64K | Direct | Jun 4, 2007 (3d) |
| Apr 2, 2007 | VNDA | ↓ Sell | 3,200 | $24.13 | $77K | Direct | Apr 3, 2007 (1d) |
| Feb 1, 2007 | VNDA | ↓ Sell | 3,200 | $29.52 | $94K | Direct | Feb 1, 2007 (0d) |
| Dec 11, 2006 | VNDA | ↓ Sell | 15,000 | $26.28 | $394K | Direct | Dec 13, 2006 (2d) |
| Nov 8, 2006 | VNDA | ↓ Sell | 12,700 | $11.15 | $142K | Direct | Nov 8, 2006 (0d) |
| Nov 8, 2006 | VNDA | ↓ Sell | 6,300 | $11.55 | $73K | Direct | Nov 8, 2006 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other IBIO insiders
Open-market trades in the last 12 months
About William D Clark's insider trades
William D Clark is a director at iBio (IBIO). Since Nov 8, 2006, William has reported 6 open-market purchases worth $119K and 14 sales worth $3.5M on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (27 filings), option exercises (14 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every IBIO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.