Historical stock prices for Protective Life Corp (PL-D). Protective Life Corporation is a holding company. The Company, along with its subsidiaries, provides financial services through the production, distribution, and administration of insurance and investment products. Protective Life Insurance Company (PLICO) is the Company's subsidiary. Its segments include Life Marketing, Acquisitions, Annuities, Stable Value Products and Asset Protection. The Company's other segment includes the Corporate and Other segment.