Alexander J Denner insider trades: Ironwood Pharmaceuticals (IRWD) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Alexander reports to the SEC
and 9 more companies
Open-market buys and sales
38 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Mar 17, 2026 | IRWD | ↓ Sell | 6,730,800 | $3.05 | $20.5M | Indirect | Mar 17, 2026 (0d) |
| Mar 6, 2025 | INVA | ↓ Sell | 1,618,295 | $17.55 | $28.4M | Indirect | Mar 6, 2025 (0d) |
| Jun 15, 2023 | INVA | ↑ Buy | 62,000 | $13.13 | $814K | Indirect | Jun 20, 2023 (5d) |
| Jun 6, 2023 | INVA | ↑ Buy | 15,000 | $13.05 | $196K | Indirect | Jun 7, 2023 (1d) |
| May 30, 2023 | INVA | ↑ Buy | 200,000 | $13.04 | $2.6M | Indirect | May 30, 2023 (0d) |
| May 18, 2023 | INVA | ↑ Buy | 60,000 | $13.07 | $784K | Indirect | May 19, 2023 (1d) |
| May 11, 2023 | INVA | ↑ Buy | 290,000 | $12.34 | $3.6M | Indirect | May 15, 2023 (4d) |
| Mar 10, 2021 | IRWD | ↑ Buy | 225,000 | $10.38 | $2.3M | Indirect | Mar 10, 2021 (0d) |
| Mar 5, 2021 | IRWD | ↑ Buy | 775,000 | $10.01 | $7.8M | Indirect | Mar 5, 2021 (0d) |
| Mar 2, 2021 | IRWD | ↑ Buy | 1,350,000 | $9.44 | $12.7M | Indirect | Mar 2, 2021 (0d) |
| Feb 12, 2021 | ITRM | ↓ Sell | 20,619,949 | $2.43 | $50.0M | Indirect | Feb 12, 2021 (0d) |
| Jun 28, 2019 | MDCO | ↑ Buy | 50,000 | $33.00 | $1.6M | Indirect | Jun 28, 2019 (0d) |
| May 30, 2019 | MDCO | ↑ Buy | 85,000 | $34.83 | $3.0M | Indirect | May 31, 2019 (1d) |
| May 22, 2019 | MDCO | ↑ Buy | 431,000 | $33.89 | $14.6M | Indirect | May 22, 2019 (0d) |
| May 2, 2019 | BIIB | ↑ Buy | 118,342 | $229.94 | $27.2M | Indirect | May 2, 2019 (0d) |
| Mar 6, 2019 | MDCO | ↑ Buy | 248,100 | $24.91 | $6.2M | Indirect | Mar 8, 2019 (2d) |
| Mar 5, 2019 | MDCO | ↑ Buy | 606,900 | $25.59 | $15.5M | Indirect | Mar 5, 2019 (0d) |
| Feb 1, 2019 | BIIB | ↑ Buy | 62,800 | $327.59 | $20.6M | Indirect | Feb 1, 2019 (0d) |
| Dec 20, 2018 | MDCO | ↑ Buy | 10,000 | $17.89 | $179K | Indirect | Dec 21, 2018 (1d) |
| Dec 18, 2018 | MDCO | ↑ Buy | 30,000 | $18.00 | $540K | Indirect | Dec 18, 2018 (0d) |
| Dec 14, 2018 | MDCO | ↑ Buy | 819,000 | $20.26 | $16.6M | Indirect | Dec 17, 2018 (3d) |
| Apr 25, 2018 | BIIB | ↑ Buy | 48,000 | $269.91 | $13.0M | Indirect | Apr 27, 2018 (2d) |
| Nov 29, 2017 | BIIB | ↑ Buy | 30,000 | $317.36 | $9.5M | Indirect | Nov 30, 2017 (1d) |
| Nov 29, 2017 | MDCO | ↑ Buy | 170,000 | $30.03 | $5.1M | Indirect | Nov 30, 2017 (1d) |
| Aug 31, 2017 | APRI | ↑ Buy | 6,104 | $1.63 | $10K | Indirect | Sep 1, 2017 (1d) |
| May 30, 2017 | BIVV | ↑ Buy | 90,000 | $55.93 | $5.0M | Indirect | Jun 1, 2017 (2d) |
| May 26, 2017 | BIVV | ↑ Buy | 920,000 | $55.77 | $51.3M | Indirect | May 26, 2017 (0d) |
| Apr 27, 2017 | BIIB | ↑ Buy | 73,858 | $278.50 | $20.6M | Indirect | May 1, 2017 (4d) |
| Mar 3, 2016 | APRI | ↑ Buy | 6,647,728 | $0.88 | $5.9M | Indirect | Mar 7, 2016 (4d) |
| Jan 12, 2016 | APRI | ↑ Buy | 1,306,819 | $0.88 | $1.2M | Indirect | Jan 14, 2016 (2d) |
| Oct 23, 2015 | BIIB | ↑ Buy | 310,000 | $277.47 | $86.0M | Indirect | Oct 26, 2015 (3d) |
| Aug 15, 2014 | ARIA | ↑ Buy | 615,466 | $5.83 | $3.6M | Sarissa Capital Domestic Fund LP | Aug 19, 2014 (4d) |
| Aug 15, 2014 | ARIA | ↑ Buy | 234,534 | $5.83 | $1.4M | Sarissa Capital Offshore Master Fund LP | Aug 19, 2014 (4d) |
| Nov 11, 2013 | VVUS | ↑ Buy | 566,844 | $8.59 | $4.9M | Indirect | Nov 12, 2013 (1d) |
| Jun 14, 2013 | BIIB | ↓ Sell | 2,900 | $212.00 | $615K | Direct | Jun 17, 2013 (3d) |
| May 28, 2013 | BIIB | ↓ Sell | 37,975 | $240.57 | $9.1M | Direct | May 29, 2013 (1d) |
| Dec 27, 2012 | BIIB | ↓ Sell | 7,980 | $148.62 | $1.2M | Direct | Dec 28, 2012 (1d) |
| Jan 17, 2012 | AMLN | ↓ Sell | 1,832 | $11.59 | $21K | Direct | Jan 19, 2012 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other IRWD insiders
Open-market trades in the last 12 months
About Alexander J Denner's insider trades
Alexander J Denner is an insider at Ironwood Pharmaceuticals (IRWD). Since Jan 17, 2012, Alexander has reported 31 open-market purchases worth $344.2M and 7 sales worth $109.9M on SEC Form 4. In the last 12 months: 1 sale ($20.5M).
Their filings also include grants and awards (82 filings), other transactions (10 filings), shares returned to the company (3 filings), option exercises (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 IRWD insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.