Insider Trading History of Kuyper Dirk

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) by Kuyper Dirk since 2007. The trader's CIK number is 1404850. At the time of the last reporting, Kuyper Dirk was the President and CEO of Conmed Corp. (stock ticker symbol CNMD). Also see all insider trading activities at Conmed Corp.

Note that in the past Kuyper Dirk also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Conmed Corp (CNMD) by Kuyper Dirk

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2019 CNMD 0 $0 22,584 $1,969,315 16,243 $755,890
2018 CNMD 0 $0 0 $0 2,167 $0
2017 CNMD 0 $0 1,000 $52,239 2,739 $0
2016 CNMD 0 $0 0 $0 3,000 $0
2015 CNMD 0 $0 0 $0 3,000 $0
2014 CNMD 0 $0 1,000 $42,851 3,000 $0
2013 CNMD 1,000 $31,631 0 $0 0 $0

Yearly summary of insider trading at Alphatec Holdings, Inc. (ATEC) by Kuyper Dirk

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2011 ATEC 52,000 $140,948 0 $0 0 $0
2010 ATEC 23,000 $49,680 0 $0 0 $0
2008 ATEC 5,000 $22,679 34,500 $170,723 0 $0
2007 ATEC 707,010 $61,132 17,250 $60,685 0 $0


Insider trading activities at 2 companies by Kuyper Dirk:

1. Conmed Corp (CNMD)

2. Alphatec Holdings, Inc. (ATEC)

Table 1. Insider trading of Conmed Corp (CNMD) by Kuyper Dirk

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2019-08-02 CNMD Option Ex 11,614 54.00 627,121
2019-08-02 CNMD Sale 11,614 91.10 1,058,070
2019-06-14 CNMD Sale 8,970 83.00 744,465
2019-05-31 CNMD Option Ex 1,629 .00 0
2019-04-08 CNMD Sale 2,000 83.39 166,780
2019-04-08 CNMD Option Ex 3,000 42.92 128,769
2018-06-01 CNMD Option Ex 2,167 .00 0
2017-06-13 CNMD Sale 1,000 52.24 52,239
2017-06-01 CNMD Option Ex 2,739 .00 0
2016-06-01 CNMD Option Ex 3,000 .00 0
2015-06-01 CNMD Option Ex 3,000 .00 0
2014-12-01 CNMD Sale 1,000 42.85 42,851
2014-06-01 CNMD Option Ex 3,000 .00 0
2013-08-15 CNMD Buy 1,000 31.63 31,631

Table 2. Insider trading of Alphatec Holdings, Inc. (ATEC) by Kuyper Dirk

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2011-08-30 ATEC Buy 29,728 2.68 79,700
2011-08-31 ATEC Buy 22,272 2.75 61,248
2010-08-12 ATEC Buy 23,000 2.16 49,680
2008-06-05 ATEC Buy 5,000 4.54 22,679
2008-03-31 ATEC Sale 17,250 4.98 85,974
2008-01-02 ATEC Sale 17,250 4.91 84,749
2007-11-26 ATEC Buy 1,000 4.54 4,544
2007-11-20 ATEC Buy 1,010 3.85 3,888
2007-10-02 ATEC Sale 17,250 3.52 60,685
2007-09-20 ATEC Buy 10,000 3.45 34,500
2007-09-13 ATEC Buy 5,000 3.64 18,200
2007-07-02 ATEC Buy 690,000 .00 0

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 Kuyper Dirk (President and CEO of Conmed Corp at the time of this reporting) see the Securities and Exchange Commission (SEC) website.



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