Deerfield International Master Fund, L.P. insider trades: Proteon Therapeutics (PRTO) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Deerfield International Master Fund, L.P. reports to the SEC






and 7 more companies
Open-market buys and sales
97 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 30, 2017 | PRTO | ↓ Sell | 110,557 | $1.75 | $193K | Through Deerfield International Master F | Dec 4, 2017 (4d) |
| Nov 30, 2017 | PRTO | ↑ Buy | 110,557 | $1.75 | $193K | Through Deerfield Partners, L.P. | Dec 4, 2017 (4d) |
| Jun 14, 2017 | REPH | ↓ Sell | 110,447 | $6.39 | $706K | Through Deerfield Special Situations Fun | Jun 14, 2017 (0d) |
| Jun 8, 2017 | REPH | ↓ Sell | 62,868 | $7.06 | $444K | Through Deerfield Special Situations Fun | Jun 9, 2017 (1d) |
| Apr 27, 2017 | EHTH | ↓ Sell | 250,156 | $11.66 | $2.9M | Through Deerfield Special Situations Fun | Apr 27, 2017 (0d) |
| Apr 27, 2017 | EHTH | ↓ Sell | 97,769 | $11.66 | $1.1M | Through Deerfield International Master F | Apr 27, 2017 (0d) |
| Apr 27, 2017 | EHTH | ↓ Sell | 79,029 | $11.66 | $921K | Through Deerfield Partners, L.P. | Apr 27, 2017 (0d) |
| Apr 13, 2017 | EHTH | ↓ Sell | 87,886 | $11.00 | $967K | Through Deerfield Special Situations Fun | Apr 17, 2017 (4d) |
| Apr 13, 2017 | EHTH | ↓ Sell | 34,349 | $11.00 | $378K | Through Deerfield International Master F | Apr 17, 2017 (4d) |
| Apr 13, 2017 | EHTH | ↓ Sell | 27,765 | $11.00 | $305K | Through Deerfield Partners, L.P. | Apr 17, 2017 (4d) |
| Apr 11, 2017 | EHTH | ↓ Sell | 135,990 | $11.38 | $1.5M | Through Deerfield Special Situations Fun | Apr 11, 2017 (0d) |
| Apr 11, 2017 | EHTH | ↓ Sell | 53,150 | $11.38 | $605K | Through Deerfield International Master F | Apr 11, 2017 (0d) |
| Apr 11, 2017 | EHTH | ↓ Sell | 42,961 | $11.38 | $489K | Through Deerfield Partners, L.P. | Apr 11, 2017 (0d) |
| Sep 23, 2016 | VNDA | ↓ Sell | 500,592 | $16.56 | $8.3M | Through Deerfield International Master F | Sep 26, 2016 (3d) |
| Sep 23, 2016 | VNDA | ↓ Sell | 393,322 | $16.56 | $6.5M | Through Deerfield Partners, L.P. | Sep 26, 2016 (3d) |
| Sep 23, 2016 | VNDA | ↓ Sell | 226,547 | $16.56 | $3.8M | Through Deerfield Special Situations Fun | Sep 26, 2016 (3d) |
| Sep 19, 2016 | VNDA | ↓ Sell | 203,833 | $15.67 | $3.2M | Through Deerfield International Master F | Sep 19, 2016 (0d) |
| Sep 19, 2016 | VNDA | ↓ Sell | 183,899 | $15.65 | $2.9M | Through Deerfield Special Situations Fun | Sep 19, 2016 (0d) |
| Sep 19, 2016 | VNDA | ↓ Sell | 160,154 | $15.67 | $2.5M | Through Deerfield Partners, L.P. | Sep 19, 2016 (0d) |
| Jul 20, 2016 | ZFGN | ↓ Sell | 901,430 | $3.31 | $3.0M | Through Deerfield Special Situations Fun | Aug 1, 2016 (12d) |
| Jul 20, 2016 | ZFGN | ↓ Sell | 246,439 | $3.31 | $816K | Through Deerfield International Master F | Aug 1, 2016 (12d) |
| Jul 20, 2016 | ZFGN | ↓ Sell | 193,630 | $3.31 | $641K | Through Deerfield Partners, L.P. | Aug 1, 2016 (12d) |
| Jun 21, 2016 | EHTH | ↓ Sell | 204,854 | $14.21 | $2.9M | Through Deerfield Special Situations Fun | Jun 22, 2016 (1d) |
| Jun 14, 2016 | EHTH | ↓ Sell | 43,300 | $13.88 | $601K | Through Deerfield Special Situations Fun | Jun 16, 2016 (2d) |
| Jun 8, 2016 | EHTH | ↓ Sell | 63,736 | $13.92 | $887K | Through Deerfield Special Situations Fun | Jun 8, 2016 (0d) |
| Jun 2, 2016 | EHTH | ↓ Sell | 99,508 | $13.85 | $1.4M | Through Deerfield Special Situations Fun | Jun 2, 2016 (0d) |
| May 27, 2016 | EHTH | ↓ Sell | 212,581 | $14.13 | $3.0M | Through Deerfield Special Situations Fun | May 27, 2016 (0d) |
| Feb 19, 2016 | XNPT | ↑ Buy | 11,745 | $3.99 | $47K | Through Deerfield International Master F | Feb 23, 2016 (4d) |
| Feb 19, 2016 | XNPT | ↑ Buy | 9,228 | $3.99 | $37K | Through Deerfield Partners, L.P. | Feb 23, 2016 (4d) |
| Feb 17, 2016 | AVXS | ↑ Buy | 295,613 | $19.32 | $5.7M | Through Deerfield Special Situations Fun | Feb 19, 2016 (2d) |
| Feb 17, 2016 | AVXS | ↑ Buy | 254,704 | $19.21 | $4.9M | Through Deerfield Private Design Fund II | Feb 19, 2016 (2d) |
| Feb 17, 2016 | AVXS | ↑ Buy | 112,000 | $20.00 | $2.2M | Through Deerfield International Master F | Feb 19, 2016 (2d) |
| Feb 17, 2016 | AVXS | ↑ Buy | 88,000 | $20.00 | $1.8M | Through Deerfield Partners, L.P. | Feb 19, 2016 (2d) |
| Feb 12, 2016 | ZFGN | ↑ Buy | 28,377 | $6.25 | $177K | Through Deerfield International Master F | Feb 17, 2016 (5d) |
| Feb 12, 2016 | ZFGN | ↑ Buy | 22,296 | $6.25 | $139K | Through Deerfield Partners, L.P. | Feb 17, 2016 (5d) |
| Feb 12, 2016 | ZFGN | ↑ Buy | 13,872 | $6.25 | $87K | Through Deerfield Special Situations Fun | Feb 17, 2016 (5d) |
| Feb 12, 2016 | XNPT | ↑ Buy | 2,734,905 | $3.87 | $10.6M | Through Deerfield International Master F | Feb 16, 2016 (4d) |
| Feb 12, 2016 | XNPT | ↑ Buy | 2,148,856 | $3.87 | $8.3M | Through Deerfield Partners, L.P. | Feb 16, 2016 (4d) |
| Feb 11, 2016 | ZFGN | ↑ Buy | 117,602 | $6.02 | $708K | Through Deerfield International Master F | Feb 11, 2016 (0d) |
| Feb 11, 2016 | ZFGN | ↑ Buy | 92,402 | $6.02 | $556K | Through Deerfield Partners, L.P. | Feb 11, 2016 (0d) |
| Feb 11, 2016 | ZFGN | ↑ Buy | 57,489 | $6.02 | $346K | Through Deerfield Special Situations Fun | Feb 11, 2016 (0d) |
| Dec 16, 2015 | VNDA | ↑ Buy | 4,441 | $8.97 | $40K | Through Deerfield International Master F | Dec 18, 2015 (2d) |
| Dec 16, 2015 | VNDA | ↑ Buy | 3,490 | $8.97 | $31K | Through Deerfield Partners, L.P. | Dec 18, 2015 (2d) |
| Dec 16, 2015 | VNDA | ↑ Buy | 3,239 | $8.97 | $29K | Through Deerfield Special Situations Fun | Dec 18, 2015 (2d) |
| Dec 11, 2015 | VNDA | ↑ Buy | 468,875 | $8.37 | $3.9M | Through Deerfield International Master F | Dec 11, 2015 (0d) |
| Dec 11, 2015 | VNDA | ↑ Buy | 348,400 | $8.38 | $2.9M | Through Deerfield Special Situations Fun | Dec 11, 2015 (0d) |
| Dec 11, 2015 | VNDA | ↑ Buy | 100,864 | $8.61 | $868K | TThrough Deerfield Partners, L.P. | Dec 11, 2015 (0d) |
| Dec 10, 2015 | VNDA | ↑ Buy | 283,225 | $8.30 | $2.4M | Through Deerfield Partners, L.P. | Dec 11, 2015 (1d) |
| Sep 30, 2015 | ATRS | ↓ Sell | 971,319 | $1.80 | $1.7M | Through Deerfield International Master F | Sep 30, 2015 (0d) |
| Sep 30, 2015 | ATRS | ↓ Sell | 763,181 | $1.80 | $1.4M | Through Deerfield Partners, L.P. | Sep 30, 2015 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Deerfield International Master Fund, L.P.'s insider trades
Deerfield International Master Fund, L.P. is a 10% owner of Proteon Therapeutics (PRTO). Since Aug 5, 2014, it has reported 47 open-market purchases worth $209.9M and 50 sales worth $76.7M on SEC Form 4. There have been no open-market trades in the last 12 months.
Its filings also include other transactions (5 filings), conversions (4 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 PRTO insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.