sam wolf (Credit: courtesy of Burson) As we kick off 2026, activist investor campaigns are no longer just prevalent; they are global, sophisticated, and have increasingly become an acute threat to corporate leadership. The escalating pressure is undeniable: Barclays data shows that activist investor campaigns hit a high last year – surpassing 2024 by 5% – with 32 CEOs resigning as a result (a record) – and showing no signs of slowing down.