SYA opened for trading on Friday and closed at $12.75 .
The insurance company raised nearly $365 million selling 30.4 million shares at $12. SYA originally sought to sell 27 million shares for between $12 and $14 each.
SYA reported net income of $96.2 million in the nine months that ended Sept. 30, up from $27 million from the same period in 2008, on revenue of $1.3 billion, up from $1.1 billion in the year-earlier period.
Berkshire Hathaway owns a 26% stake in the company.