VeriChip, which has created a system for putting RFID chips into humans for medical-record tracking, held an initial public offering on Friday, and the company’s stock has been struggling ever since. The stock is currently trading at around $6.15. The company released 3.1 million shares in the IPO for $6.50 a share.

Part of the problem is likely the lackluster sales for the company’s most famous product.

Only 222 medical patients in total have opted to get RFID chips from VeriChip implanted as of the end of 2006, according to documents filed by the company with the Securities and Exchange Commission as part of its initial public offering.

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