David Nierenberg of Nierenberg Investment Management has increased his stake in Houston Wire & Cable Company according to a recent 13G form filed with the SEC. The micro-cap-focused investor, whose public equity portfolio was valued at $64.35 million as of March 31, has increased his stake in the $153.82 million wire and cable company to 886,122 shares, up from 467,422 shares that it reported ownership of on March 31. The new stake amasses 5.2% of Houston Wire & Cable Company's outstanding shares.