The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) by Chai Christopher Y since 2009.
The trader's CIK number is 1413823.
At the time of the last reporting, Chai Christopher Y was the Chief Financial Officer of Principia Biopharma Inc.. (stock ticker symbol PRNB).
Also see all insider trading activities at Principia Biopharma Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2013 | MAPP | 0 | $0 | 0 | $0 | 5,000 | $0 |
| 2012 | MAPP | 0 | $0 | 0 | $0 | 2,250 | $0 |
| 2011 | MAPP | 0 | $0 | 32,000 | $492,288 | 32,000 | $23,776 |
| 2010 | MAPP | 0 | $0 | 64,000 | $930,088 | 64,000 | $47,552 |
| 2009 | MAPP | 0 | $0 | 20,021 | $183,612 | 20,021 | $14,875 |
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2020 | PRNB | 0 | $0 | 22,500 | $1,731,547 | 15,675 | $46,993 |
1. Map Pharmaceuticals, Inc. (MAPP)
2. Principia Biopharma Inc. (PRNB)
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2013-01-26 | MAPP | Option Ex | 2,250 | .00 | 0 |
| 2013-01-25 | MAPP | Option Ex | 2,750 | .00 | 0 |
| 2012-01-26 | MAPP | Option Ex | 2,250 | .00 | 0 |
| 2011-09-20 | MAPP | Option Ex | 32,000 | .74 | 23,776 |
| 2011-09-20 | MAPP | Sale | 32,000 | 15.38 | 492,288 |
| 2010-09-20 | MAPP | Option Ex | 16,000 | .74 | 11,888 |
| 2010-09-20 | MAPP | Sale | 16,000 | 14.05 | 224,816 |
| 2010-07-21 | MAPP | Option Ex | 8,000 | .74 | 5,944 |
| 2010-07-20 | MAPP | Sale | 8,000 | 12.42 | 99,384 |
| 2010-07-21 | MAPP | Sale | 8,000 | 13.00 | 104,000 |
| 2010-07-20 | MAPP | Option Ex | 8,000 | .74 | 5,944 |
| 2010-05-20 | MAPP | Option Ex | 16,000 | .74 | 11,888 |
| 2010-05-20 | MAPP | Sale | 16,000 | 14.77 | 236,352 |
| 2010-03-24 | MAPP | Sale | 8,000 | 16.47 | 131,744 |
| 2010-03-23 | MAPP | Sale | 8,000 | 16.72 | 133,792 |
| 2010-03-24 | MAPP | Option Ex | 8,000 | .74 | 5,944 |
| 2010-03-23 | MAPP | Option Ex | 8,000 | .74 | 5,944 |
| 2009-11-02 | MAPP | Sale | 10,000 | 8.07 | 80,719 |
| 2009-11-02 | MAPP | Option Ex | 10,000 | .74 | 7,430 |
| 2009-10-01 | MAPP | Option Ex | 10,000 | .74 | 7,430 |
| 2009-10-01 | MAPP | Sale | 10,000 | 10.26 | 102,620 |
| 2009-02-09 | MAPP | Option Ex | 21 | .74 | 15 |
| 2009-02-09 | MAPP | Sale | 21 | 13.00 | 273 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2020-08-18 | PRNB | Option Ex | 7,500 | 3.00 | 22,485 |
| 2020-08-18 | PRNB | Sale | 7,500 | 99.36 | 745,237 |
| 2020-05-19 | PRNB | Option Ex | 5,675 | 3.00 | 17,013 |
| 2020-05-19 | PRNB | Sale | 7,500 | 65.10 | 488,265 |
| 2020-02-18 | PRNB | Option Ex | 2,500 | 3.00 | 7,495 |
| 2020-02-18 | PRNB | Sale | 7,500 | 66.41 | 498,045 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Chai Christopher Y (Chief Financial Officer of Principia Biopharma Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.