David Arkowitz 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 David reports to the SEC






and 5 more companies
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 | 18,382 | $2.72 | $50K | Direct | Jan 13, 2025 (3d) |
| Feb 16, 2024 | MCRB | ↓ Sell | 3,939 | $1.08 | $4K | Direct | Feb 16, 2024 (0d) |
| Oct 30, 2023 | MCRB | ↓ Sell | 4,066 | $1.35 | $5K | Direct | Oct 31, 2023 (1d) |
| May 10, 2021 | FLXN | ↓ Sell | 2,229 | $7.23 | $16K | Direct | May 12, 2021 (2d) |
| Jan 5, 2021 | FLXN | ↓ Sell | 6,073 | $11.13 | $68K | Direct | Jan 7, 2021 (2d) |
| May 7, 2020 | FLXN | ↓ Sell | 2,413 | $10.88 | $26K | Direct | May 11, 2020 (4d) |
| May 31, 2019 | FLXN | ↑ Buy | 2,500 | $11.05 | $28K | Direct | Jun 3, 2019 (3d) |
| May 13, 2019 | FLXN | ↑ Buy | 4,000 | $11.99 | $48K | Direct | May 15, 2019 (2d) |
| May 8, 2019 | FLXN | ↓ Sell | 2,248 | $10.06 | $23K | Direct | May 9, 2019 (1d) |
| Nov 9, 2018 | FLXN | ↑ Buy | 4,000 | $16.56 | $66K | Direct | Nov 13, 2018 (4d) |
| Aug 9, 2018 | FLXN | ↑ Buy | 4,000 | $23.42 | $94K | Direct | Aug 10, 2018 (1d) |
| Aug 4, 2017 | SBPH | ↑ Buy | 2,500 | $12.24 | $31K | Direct | Aug 7, 2017 (3d) |
| May 31, 2011 | AMAG | ↑ Buy | 1,500 | $13.23 | $20K | Direct | Jun 1, 2011 (1d) |
| Feb 24, 2011 | AMAG | ↓ Sell | 2,705 | $17.07 | $46K | Direct | Feb 28, 2011 (4d) |
| May 28, 2010 | AMAG | ↑ Buy | 658 | $27.06 | $18K | Direct | Jun 1, 2010 (4d) |
| Dec 1, 2009 | AMAG | ↑ Buy | 172 | $31.78 | $5K | Direct | Dec 2, 2009 (1d) |
| Nov 12, 2009 | AMAG | ↓ Sell | 4,459 | $43.41 | $194K | Direct | Nov 12, 2009 (0d) |
| Jun 2, 2009 | AMAG | ↑ Buy | 529 | $25.61 | $14K | Direct | Nov 12, 2009 (163d) |
| Jun 11, 2008 | AMAG | ↑ Buy | 1,000 | $37.50 | $38K | Direct | Jun 13, 2008 (2d) |
| May 5, 2007 | AMAG | ↑ Buy | 1,000 | $40.38 | $40K | Direct | May 6, 2008 (367d) |
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 David Arkowitz's insider trades
David Arkowitz is a director at iBio (IBIO). Since May 5, 2007, David has reported 12 open-market purchases worth $451K and 8 sales worth $382K on SEC Form 4. There have been no open-market trades in the last 12 months.
Their filings also include grants and awards (47 filings), option exercises (6 filings), conversions (5 filings), other transactions (3 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.