The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) by Yu Albert Yc since 2007.
The trader's CIK number is 1320023.
At the time of the last reporting, Yu Albert Yc was the Director of Pdf Solutions Inc. (stock ticker symbol PDFS).
Also see all insider trading activities at Pdf Solutions Inc.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2007 | CCMP | 0 | $0 | 18,650 | $816,068 | 18,850 | $640,397 |
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2014 | PDFS | 0 | $0 | 7,501 | $166,897 | 7,501 | $36,154 |
| 2013 | PDFS | 0 | $0 | 19,968 | $427,898 | 5,158 | $11,863 |
| 2012 | PDFS | 0 | $0 | 22,966 | $213,991 | 22,966 | $106,784 |
| 2010 | PDFS | 0 | $0 | 9,470 | $40,280 | 0 | $0 |
| 2009 | PDFS | 0 | $0 | 2,447 | $4,196 | 0 | $0 |
1. Cabot Microelectronics Corp (CCMP)
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2007-08-09 | CCMP | Option Ex | 8,950 | 36.13 | 323,399 |
| 2007-08-09 | CCMP | Sale | 8,750 | 43.60 | 381,508 |
| 2007-08-09 | CCMP | Option Ex | 9,900 | 32.02 | 316,998 |
| 2007-08-09 | CCMP | Sale | 9,900 | 43.90 | 434,560 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2014-02-20 | PDFS | Option Ex | 7,501 | 4.82 | 36,154 |
| 2014-02-20 | PDFS | Sale | 7,501 | 22.25 | 166,897 |
| 2013-11-29 | PDFS | Sale | 468 | 23.35 | 10,927 |
| 2013-11-04 | PDFS | Option Ex | 5,158 | 2.30 | 11,863 |
| 2013-11-04 | PDFS | Sale | 7,971 | 22.98 | 183,133 |
| 2013-08-02 | PDFS | Sale | 5,257 | 21.06 | 110,712 |
| 2013-08-01 | PDFS | Sale | 3,490 | 20.56 | 71,754 |
| 2013-05-30 | PDFS | Sale | 2,313 | 18.50 | 42,790 |
| 2013-05-28 | PDFS | Sale | 469 | 18.30 | 8,582 |
| 2012-09-13 | PDFS | Option Ex | 4,633 | 5.53 | 25,620 |
| 2012-09-13 | PDFS | Sale | 4,633 | 12.86 | 59,571 |
| 2012-08-15 | PDFS | Option Ex | 4,897 | 3.56 | 17,433 |
| 2012-08-16 | PDFS | Option Ex | 3,281 | 6.21 | 20,375 |
| 2012-08-15 | PDFS | Sale | 4,897 | 10.37 | 50,781 |
| 2012-08-16 | PDFS | Sale | 3,281 | 10.40 | 34,122 |
| 2013-02-23 | PDFS | Sale | 3,500 | 6.80 | 23,800 |
| 2012-02-23 | PDFS | Option Ex | 6,655 | 3.98 | 26,486 |
| 2012-02-24 | PDFS | Option Ex | 3,500 | 4.82 | 16,870 |
| 2012-02-23 | PDFS | Sale | 3,155 | 6.72 | 21,217 |
| 2012-02-24 | PDFS | Sale | 3,500 | 7.00 | 24,500 |
| 2010-11-24 | PDFS | Sale | 1,000 | 4.03 | 4,030 |
| 2010-11-26 | PDFS | Sale | 400 | 4.10 | 1,638 |
| 2010-11-05 | PDFS | Sale | 813 | 4.10 | 3,333 |
| 2010-11-04 | PDFS | Sale | 2,000 | 4.04 | 8,080 |
| 2010-04-27 | PDFS | Sale | 2,812 | 4.84 | 13,618 |
| 2010-02-16 | PDFS | Sale | 2,445 | 3.92 | 9,581 |
| 2009-05-20 | PDFS | Sale | 2,447 | 1.72 | 4,196 |
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 Yu Albert Yc (Director of Pdf Solutions Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.