Connecticut Treasurer Denise Nappier, whose office oversees $40 million worth of Wal-Mart shares in state pension and trust funds, in December submitted a proposal calling for the incentive pay of senior executives to be tied in part to a measure of “employee engagement”, according to previously unreported filings to the Securities and Exchange Commission. Wal-Mart is fighting to keep this and other select proposals off the ballot for its annual meeting in June, filings show.