LONDON (AP) — Commodities trader Glencore International said Wednesday that it is considering changes in incentives for senior employees of Xstrata as a shareholder revolt over its proposed takeover of the mining company gathered steam.

The possible revision of the offer comes barely two weeks ahead of a shareholders vote on the deal and followed a demand by a Qatari investment fund for better terms for its 10 percent stake in Xstrata. It wants 3.25 new Glencore shares for each Xstrata share, significantly more than the 2.8 shares currently on offer.