Shares of BDR rose as executives have increased their holdings.

AMEX:BDR   Blonder Tongue Laboratories, Inc
Shares of BDR more than quadrupled as executives have increased their holdings.

"There have been no material developments or change in circumstances with respect to the company's ongoing business activities since the company issued its second-quarter earnings release" on Aug. 7.

Securities and Exchange Commission filings showed that Blonder Tongue officials have been buying shares of the company.

President and Chief Executive Grauch Rowland has steadily built his equity in the company. As of Aug. 14 he held 272,282 shares, compared with 195,735 shares at the start of the year.

Alterio Vincent, Blonder's senior vice president of engineering and chief technology officer, has purchased more than 1,000 shares every two weeks since late May. As of Aug. 14, he held 23,000 shares, up from 15,000 shares.

Chief Financial Officer Eric Skolnik has also purchased shares in the past three months, increasing his holdings to more than 13,000 in mid-August from about 9,400 shares in late May.

And Horvath Allen, senior vice president of operations, held 77,212 shares as of last Friday compared with 61,053 in late May.