On September 10, 2026, it was reported that the California State Teachers Retirement System significantly increased its stake in NRG Energy, Inc. by 14,662.9% during the second quarter. The pension fund acquired an additional 34,348,662 shares, bringing its total holdings to 34,582,918 shares, which represents approximately 16.39% of the company.
In other news, Gerald Alfred Spencer, NRG's SVP & Chief Accounting Officer, sold 1,580 shares of common stock on September 8, 2026, for a total of $191,069. This sale was conducted under a pre-arranged Rule 10b5-1 trading plan. These contrasting events of a major institutional purchase and an insider sale present a mixed signal to the market regarding the company's stock.