Three former officials of UBS, the troubled Swiss financial giant, said that they would forgo more than $27 million in compensation.

Luqman Arnold, who accumulated a 2.5 percent stake in UBS, wants to repair UBS corporate governance by removing what he called “insiders” from the board of directors.

Shareholders approved a set of measures to raise capital, namely a rights offer of about $15 billion, and elected two new members to the executive board.