Thomas J. Zeller serves as Executive at BLACK HILLS CORP /SD/, where they oversee executive responsibilities. Since joining the company, Thomas J. Zeller has executed 209 insider transactions totaling $18.5K, demonstrating a bearish approach to their equity position. Their most recent transaction on Sep 4, 2012 involved transacting 29.21 shares valued at $1000.
Thomas J. Zeller currently holds 10,761.52 shares of BLACK HILLS CORP /SD/ (BKH), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Thomas J. Zeller has been a net seller of BKH stock. They have purchased $0 and sold $18.5K worth of shares.
Thomas J. Zeller's most recent insider trade was on Sep 4, 2012, when they sold 29.21 shares at $34.23 per share.
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| 78.62 |
| $34.23 |
| Discretionary |
| Aug 1, 2012 | BKH | $1.0K | Discretionary | 31.53 | $31.72 | Discretionary |
| Jul 5, 2012 | BKH | $1.0K | Discretionary | 30.83 | $32.44 | Discretionary |
| Jun 1, 2012 | BKH | $2.6K | Discretionary | 82.22 | $31.94 | Discretionary |
| Jun 1, 2012 | BKH | $1.0K | Discretionary | 31.31 | $31.94 | Discretionary |
| May 2, 2012 | BKH | $1000 | Discretionary | 30.58 | $32.70 | Discretionary |
| Apr 4, 2012 | BKH | $1.0K | Discretionary | 29.53 | $33.87 | Discretionary |
| Mar 1, 2012 | BKH | $1.0K | Discretionary | 30.4 | $32.90 | Discretionary |
| Mar 1, 2012 | BKH | $2.6K | Discretionary | 77.93 | $32.90 | Discretionary |
| Feb 1, 2012 | BKH | $1000 | Discretionary | 29.42 | $33.99 | Discretionary |
| Jan 4, 2012 | BKH | $1.0K | Discretionary | 30.07 | $33.26 | Discretionary |
| Dec 31, 2011 | BKH | $0 | Other | 13.77 | $N/A | Discretionary |
| Dec 1, 2011 | BKH | $1000 | Discretionary | 30.43 | $32.86 | Discretionary |
| Dec 1, 2011 | BKH | $2.5K | Discretionary | 75.14 | $32.86 | Discretionary |
| Nov 2, 2011 | BKH | $1000 | Discretionary | 30.19 | $33.12 | Discretionary |
| Oct 5, 2011 | BKH | $1.0K | Discretionary | 32.96 | $30.34 | Discretionary |
| Sep 1, 2011 | BKH | $1.0K | Discretionary | 32.48 | $30.79 | Discretionary |
| Sep 1, 2011 | BKH | $2.4K | Discretionary | 78.13 | $30.79 | Discretionary |
| Aug 3, 2011 | BKH | $1000 | Discretionary | 34.21 | $29.23 | Discretionary |
| Jul 6, 2011 | BKH | $1000 | Discretionary | 32.98 | $30.32 | Discretionary |
| Jun 1, 2011 | BKH` | $2.3K | Discretionary | 76.14 | $30.75 | Discretionary |
| Jun 1, 2011 | BKH` | $1000 | Discretionary | 32.52 | $30.75 | Discretionary |
| May 4, 2011 | BKH | $1.0K | Discretionary | 29.13 | $34.33 | Discretionary |
| Apr 6, 2011 | BKH | $1000 | Discretionary | 29.23 | $34.21 | Discretionary |
| Mar 1, 2011 | BKH | $2.3K | Discretionary | 73.88 | $30.88 | Discretionary |
| Mar 1, 2011 | BKH | $1000 | Discretionary | 32.38 | $30.88 | Discretionary |
| Feb 2, 2011 | BKH | $1.0K | Discretionary | 31.59 | $31.66 | Discretionary |
| Jan 5, 2011 | BKH | $1.0K | Discretionary | 32.66 | $30.62 | Discretionary |
| Dec 1, 2010 | BKH | $2.2K | Discretionary | 70.78 | $30.94 | Discretionary |