Nippon Life Insurance Co filed a Form 4 with the SEC on September 21, 2026, disclosing a purchase of 174,760 shares of Corebridge Financial, Inc. (NYSE:CRBG) common stock on September 17, 2026, executed under a Rule 10b5-1 plan.

Key Highlights

  • Shares purchased: Nippon Life Insurance Co acquired 174,760 shares of Corebridge Financial common stock on September 17, 2026.
  • Weighted average price: The reported price was $35.1953 per share, reflecting purchases across a range of $34.83 to $35.60, inclusive.
  • Rule 10b5-1 plan: The purchases were made pursuant to a Rule 10b5-1 plan adopted by Nippon Life on August 7, 2026.
  • Post-transaction ownership: Following the transaction, Nippon Life beneficially owns 123,475,852 shares of Corebridge Financial common stock, held directly.
  • Subsidiary holdings included: The beneficial ownership figure includes 33,271 shares held by Nissay Asset Management Corporation, a direct wholly owned subsidiary of Nippon Life.
  • Reporting person's role: Nippon Life is identified in the filing as a 10% owner of Corebridge Financial.

Nippon Life's Rule 10b5-1 Purchase of Corebridge Financial Common Stock

According to the filing, Nippon Life Insurance Co, headquartered in Osaka, Japan, purchased 174,760 shares of Corebridge Financial, Inc. common stock on September 17, 2026. The transaction was reported as a purchase (transaction code "P") of securities acquired ("A") at a weighted average price of $35.1953 per share. The filing notes that the shares were bought in multiple transactions at prices ranging from $34.83 to $35.60, inclusive, and that full information on the number of shares purchased at each separate price is available upon request to the issuer, any security holder, or SEC staff.

The filing discloses that the purchases were carried out under a Rule 10b5-1 plan that Nippon Life adopted on August 7, 2026. This is indicated by the checked box on the form affirming that the transaction was made pursuant to a contract, instruction, or written plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). Following the reported transaction, Nippon Life's total beneficial ownership stands at 123,475,852 shares, held directly.

The beneficial ownership total, according to the filing's footnotes, comprises 123,442,581 shares held of record by Nippon Life itself and 33,271 shares held of record by Nissay Asset Management Corporation, described as "a direct wholly owned subsidiary of the Reporting Person, which the Reporting Person may be deemed to beneficially own." The Form 4 was signed by Yohei Miyanaga, General Manager, on September 21, 2026.

What Was Disclosed

Nippon Life Insurance Co, a 10% owner of Corebridge Financial (NYSE:CRBG), reported the acquisition of 174,760 common shares on September 17, 2026, at a weighted average price of $35.1953, bringing its total beneficial ownership to 123,475,852 shares under a Rule 10b5-1 plan.