 Market maker Virtu Financial Inc. VIRT, -0.63 said Tuesday it has launched a Freedom of Information Act FOIA lawsuit against its own regulator, the Securities and Exchange Commission, over the latters failure to provide information about its rulemaking process and interactions of the chair with interested parties. Virtu said the suit was filed in the U.S. District Court of the Southern District of New York and that its being represented by Paul, Weiss, Rifkind, Wharton Garrison LLP. 