More selling by Stryker Corp. director

After a five-month respite, the sole family member on the Stryker Corp. board is back in the market selling off significant blocs of stock.

Ronda Stryker, the granddaughter of Stryker founder Homer Stryker, this week sold another 150,000 shares of the company’s stock to pocket just under $7.9 million in gross proceeds. The open-market transactions, completed Feb. 16-17, follow a series of similar trades starting Feb. 10 that generated another $8 million and were her first since wrapping up a slew of sales between April and August 2009.

Overall, the 54-year-old sold about 2 million shares of Stryker stock, based in Kalmazoo, Mich., during 2009.

Stryker’s latest stock sales were disclosed in regulatory documents filed on Thursday.