RIVERS CAROL S 4
4 · ALTERRA CAPITAL HOLDINGS Ltd · Filed May 18, 2011
Insider Transaction Report
Form 4
RIVERS CAROL S
General Counsel & Secretary
Transactions
- Sale
Common Shares
2011-05-17$22.00/sh−9,442$207,724→ 72,235 total
4 · ALTERRA CAPITAL HOLDINGS Ltd · Filed May 18, 2011
Common Shares