144 1 Fatzinger144filing091217.txt FORM 144 TEXT (Add Text comment Bloomberg Tradebook LLC 120 Park Avenue New York, NY 10017) (Add Text comment N/A) (Add Text comment N/A) (Add Text comment 18,400) (Add Text comment ManTech International) (Add Text comment Compensation for Director) (Add Text comment 5/14/12) (Add Text comment N/A) (Add Text comment Corp Class A) (Add Text comment blank)