An investment group may up its stake in Citadel.

Led by Hecco Ventures, the group said it’s seeking regulatory approval to increase its stake in Citadel Holding to more than 10%. The group now owns 9.94%. Hecco Ventures is a Los Angeles-based investment partnership run by Los Angeles movie theater executives Michael R. Forman and James J. Cotter. Citadel is the parent company of Glendale-based Fidelity Federal Savings & Loan Assn.