BOOM insider transactions

Chief Accounting Officer Seger Brett A. covered exercise/tax liability with 230 shares, decreasing direct ownership by 1% to 21,408 units (SEC Form 4) (tax withholding)

Director Kelly Michael Aaron was granted 16,937 shares, increasing direct ownership by 35% to 65,590 units (SEC Form 4)

Director Dreessen Ruth was granted 16,937 shares, increasing direct ownership by 35% to 65,283 units (SEC Form 4)

Director Doubman John R was granted 16,937 shares, increasing direct ownership by 117% to 31,396 units (SEC Form 4)

Director Sananikone Ouma was granted 16,937 shares, increasing direct ownership by 47% to 52,773 units (SEC Form 4)

Director Spurlin Sharon was granted 16,937 shares, increasing direct ownership by 175% to 26,596 units (SEC Form 4)

Chief Financial Officer Walter Eric V. covered exercise/tax liability with 11,427 shares, decreasing direct ownership by 11% to 88,603 units (SEC Form 4) to satisfy withholding tax

Chief Accounting Officer Seger Brett A. covered exercise/tax liability with 1,595 shares, decreasing direct ownership by 7% to 21,638 units (SEC Form 4)

Chief Financial Officer Walter Eric V. covered exercise/tax liability with 2,272 shares, decreasing direct ownership by 2% to 100,030 units (SEC Form 4)

Pres & Mng Dir, DynaEnergetics Grieves Ian converted options into 3,541 shares and covered exercise/tax liability with 1,569 shares, increasing direct ownership by 2% to 81,708 units (SEC Form 4)

President of NobelClad Nobili Antoine converted options into 904 shares, increasing direct ownership by 4% to 21,177 units (SEC Form 4)

SEC Form 4 filed by Chief Financial Officer Walter Eric V.

SEC Form 4 filed by Exec. Chair, President & CEO Oleary James

Chief Accounting Officer Seger Brett A. covered exercise/tax liability with 1,212 shares, decreasing direct ownership by 5% to 23,233 units (SEC Form 4)

Chief Financial Officer Walter Eric V. covered exercise/tax liability with 9,328 shares, decreasing direct ownership by 8% to 102,302 units (SEC Form 4)

Pres & Mng Dir, DynaEnergetics Grieves Ian converted options into 12,950 shares and covered exercise/tax liability with 5,739 shares, increasing direct ownership by 10% to 79,736 units (SEC Form 4)

President of NobelClad Nobili Antoine converted options into 2,304 shares, increasing direct ownership by 13% to 20,273 units (SEC Form 4)

President of Arcadia Schladen James covered exercise/tax liability with 8,053 shares, decreasing direct ownership by 18% to 36,744 units (SEC Form 4)

President of Arcadia Schladen James sold $111,000 worth of shares (18,500 units at $6.00) (SEC Form 4)

Exec. Chair, President & CEO Oleary James covered exercise/tax liability with 64,818 shares, decreasing direct ownership by 25% to 191,392 units (SEC Form 4)

Director Spurlin Sharon was granted 9,659 shares (SEC Form 4)

SEC Form 3 filed by new insider Spurlin Sharon

Exec. Chair, President & CEO Oleary James bought $236,798 worth of shares (39,798 units at $5.95), increasing direct ownership by 18% to 256,210 units (SEC Form 4)

SEC Form 4 filed by Exec. Chair, President & CEO Oleary James

Director Doubman John R was granted 14,459 shares (SEC Form 4)

SEC Form 3 filed by new insider Doubman John R

Chief Accounting Officer Seger Brett A. covered exercise/tax liability with 233 shares, decreasing direct ownership by 0.94% to 24,445 units (SEC Form 4)

Director Rose Clifton Peter was granted 17,580 shares, increasing direct ownership by 40% to 61,988 units (SEC Form 4)

Director Kelly Michael Aaron was granted 17,580 shares, increasing direct ownership by 57% to 48,653 units (SEC Form 4)

Director Sananikone Ouma was granted 17,580 shares, increasing direct ownership by 96% to 35,836 units (SEC Form 4)

Director Dreessen Ruth was granted 17,580 shares, increasing direct ownership by 57% to 48,346 units (SEC Form 4)

Amendment: President of Arcadia Schladen James was granted 40,066 shares, increasing direct ownership by 1,214% to 43,366 units (SEC Form 4)

President of NobelClad Nobili Antoine converted options into 1,810 shares, increasing direct ownership by 11% to 17,969 units (SEC Form 4)

Pres & Mng Dir, DynaEnergetics Grieves Ian converted options into 3,541 shares and covered exercise/tax liability with 1,682 shares, increasing direct ownership by 3% to 72,525 units (SEC Form 4)

Chief Accounting Officer Seger Brett A. covered exercise/tax liability with 1,379 shares, decreasing direct ownership by 5% to 24,678 units (SEC Form 4)

Chief Legal Officer Shepston Michelle H covered exercise/tax liability with 1,205 shares, decreasing direct ownership by 1% to 89,461 units (SEC Form 4)

Chief Financial Officer Walter Eric V. covered exercise/tax liability with 2,273 shares, decreasing direct ownership by 2% to 111,630 units (SEC Form 4)

Chief Accounting Officer Seger Brett A. covered exercise/tax liability with 399 shares, decreasing direct ownership by 2% to 26,057 units (SEC Form 4)

President of Arcadia Schladen James converted options into 2,429 shares and covered exercise/tax liability with 998 shares, increasing direct ownership by 3% to 44,797 units (SEC Form 4)

Chief Legal Officer Shepston Michelle H converted options into 3,549 shares and covered exercise/tax liability with 4,498 shares, decreasing direct ownership by 1% to 90,666 units (SEC Form 4)

President of NobelClad Nobili Antoine converted options into 1,537 shares, increasing direct ownership by 11% to 16,159 units (SEC Form 4)

Chief Financial Officer Walter Eric V. covered exercise/tax liability with 2,843 shares, decreasing direct ownership by 2% to 113,903 units (SEC Form 4)

Pres & Mng Dir, DynaEnergetics Grieves Ian converted options into 9,847 shares and covered exercise/tax liability with 4,677 shares, increasing direct ownership by 8% to 70,666 units (SEC Form 4)

Amendment: New insider Schladen James claimed ownership of 554,758 shares (SEC Form 3)

SEC Form 4 filed by President of NobelClad Nobili Antoine

SEC Form 4 filed by Pres & Mng Dir, DynaEnergetics Grieves Ian

President of Arcadia Schladen James was granted 40,066 shares, increasing direct ownership by 1,214% to 43,366 units (SEC Form 4)

Chief Accounting Officer Seger Brett A. was granted 8,554 shares, increasing direct ownership by 48% to 26,456 units (SEC Form 4)

Chief Legal Officer Shepston Michelle H was granted 24,006 shares, increasing direct ownership by 36% to 91,615 units (SEC Form 4)

Chief Financial Officer Walter Eric V. was granted 38,852 shares, increasing direct ownership by 50% to 116,746 units (SEC Form 4)

Director Rose Clifton Peter was granted 5,518 shares, increasing direct ownership by 14% to 44,408 units (SEC Form 4)

Director Sananikone Ouma was granted 5,518 shares, increasing direct ownership by 43% to 18,256 units (SEC Form 4)

Director Kelly Michael Aaron was granted 5,518 shares, increasing direct ownership by 22% to 31,073 units (SEC Form 4)

Director Dreessen Ruth was granted 5,518 shares, increasing direct ownership by 22% to 30,766 units (SEC Form 4)

Director Bates Simon was granted 5,518 shares, increasing direct ownership by 67% to 13,772 units (SEC Form 4)

New insider Schladen James claimed ownership of 554,758 shares (SEC Form 3)

Chief Accounting Officer Seger Brett A. covered exercise/tax liability with 1,649 shares, decreasing direct ownership by 8% to 17,902 units (SEC Form 4)

Chief Financial Officer Walter Eric V. covered exercise/tax liability with 8,988 shares, decreasing direct ownership by 10% to 77,894 units (SEC Form 4)

Chief Financial Officer Walter Eric V. was granted 26,119 shares, increasing direct ownership by 43% to 86,882 units (SEC Form 4)

Chief Legal Officer Shepston Michelle H was granted 22,560 shares, increasing direct ownership by 50% to 67,609 units (SEC Form 4)