Fewer than one-quarter of Fortune 500 companies provide personal security services to senior executives, a percentage that legal and security executives predict will spike in the wake of UnitedHealthcare CEO Brian Thompson’s fatal shooting in front of a Manhattan hotel Wednesday.

The U.S. Securities and Exchange Commission requires companies to disclose any personal security costs for a senior executive exceeding $10,000 in a given year. UnitedHealthcare’s parent, Minnetonka, Minnesota-based UnitedHealthcare Group, the nation’s largest health insurer, had no disclosures for 2023. Nor did No. 2 insurer Elevance Health or No. 3 Centene.