| 2010-06-15 | NORTH AMERICAN GALVANIZING & COATINGS INC | J | −124K sh | — | — | 0 |
| 2010-06-15 | NORTH AMERICAN GALVANIZING & COATINGS INC | J | +124K sh | — | — | 124,302 |
| 2010-06-14 | NORTH AMERICAN GALVANIZING & COATINGS INC | U | −214K sh | $7.50 | −$1.61M | 26,666 |
| 2010-04-01 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +4,529 sh | — | — | 124,302 |
| 2010-01-04 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +5,198 sh | — | — | 119,773 |
| 2009-10-01 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +3,785 sh | — | — | 114,575 |
| 2009-08-21 | NORTH AMERICAN GALVANIZING & COATINGS INC | I | +30K sh | $5.20 | +$156K | 30,000 |
| 2009-07-02 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +2,591 sh | — | — | 110,790 |
| 2009-04-01 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +5,262 sh | — | — | 108,199 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | M | +6,250 sh | $0.53 | +$3,312.5 | 191,061 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | M | +10K sh | $0.53 | +$5,300 | 201,061 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | M | +10K sh | $0.70 | +$7,000 | 211,061 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | M | +10K sh | $0.68 | +$6,800 | 221,061 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | M | +10K sh | $0.99 | +$9,900 | 231,061 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | M | +10K sh | $0.98 | +$9,800 | 241,061 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | X | −6,250 sh | $0.53 | −$3,312.5 | 70,000 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | X | −10K sh | $0.53 | −$5,300 | 60,000 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | X | −10K sh | $0.70 | −$7,000 | 50,000 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | X | −10K sh | $0.68 | −$6,800 | 40,000 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | X | −10K sh | $0.99 | −$9,900 | 30,000 |
| 2009-03-27 | NORTH AMERICAN GALVANIZING & COATINGS INC | X | −10K sh | $0.98 | −$9,800 | 20,000 |
| 2009-01-20 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +13.3K sh | — | — | 184,811 |
| 2009-01-02 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +4,150 sh | — | — | 102,937 |
| 2008-01-02 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +2,466 sh | — | — | 67,526 |
| 2007-10-01 | AQUILA INC | A | +1,875 sh | — | — | 32,250 |
| 2007-10-01 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +2,359 sh | — | — | 65,060 |
| 2007-07-02 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +1,663 sh | — | — | 62,701 |
| 2007-06-29 | AQUILA INC | A | +1,875 sh | — | — | 30,375 |
| 2006-12-29 | AQUILA INC | A | +1,875 sh | — | — | 26,625 |
| 2006-10-02 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +2,939 sh | — | — | 107,402 |
| 2006-07-03 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +3,388 sh | — | — | 32,057 |
| 2006-07-03 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +3,388 sh | — | — | 74,653 |
| 2006-06-30 | AQUILA INC | A | +1,875 sh | — | — | 22,875 |
| 2005-12-30 | AQUILA INC | A | +1,875 sh | — | — | 19,125 |
| 2005-06-30 | AQUILA INC | A | +1,875 sh | $3.58 | +$6,703.125 | 9,375 |
| 2004-12-31 | AQUILA INC | A | +1,875 sh | $3.73 | +$6,984.375 | 5,625 |
| 2004-10-15 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +2,272 sh | $2.20 | +$4,998.4 | 42,783 |
| 2004-09-30 | AQUILA INC | A | +1,875 sh | $3.10 | +$5,821.875 | 3,750 |
| 2004-09-21 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +5,000 sh | $1.98 | +$9,900 | 23,125 |
| 2004-04-23 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +3,067 sh | $1.63 | +$4,999.21 | 42,999 |
| 2004-01-20 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +3,448 sh | $1.45 | +$4,999.6 | 39,932 |
| 2003-10-25 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +4,132 sh | $1.21 | +$4,999.72 | 36,484 |
| 2003-08-05 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +5,000 sh | $1.35 | +$6,750 | 32,352 |
| 2003-04-16 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +3,229 sh | $1.55 | +$4,999.461 | 23,805 |
| 2003-01-14 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +3,314 sh | $1.51 | +$4,999.832 | 20,576 |
| 2002-10-23 | NORTH AMERICAN GALVANIZING & COATINGS INC | A | +3,497 sh | $1.43 | +$4,999.311 | 17,262 |