Hartford Investment Management Co. has reduced its position in NRG Energy by 4.5% in the second quarter of this year, according to a regulatory filing. After the sale of 560 shares, the firm’s stake now stands at 11,804 shares, valued around $1.90 million.

Integrity Alliance LLC. has added 8,216 shares of PPL Corporation to its portfolio in the first quarter, for a total cost of $297,000. This move places the investment fund among other institutional players engaging with the utilities provider.

Frisch Financial Group Inc. recently increased its stake in NextEra Energy, Inc. by 7.8%, according to a regulatory filing. The firm’s decision to add 606 shares highlights an ongoing commitment to the utilities giant, bringing its total holdings to more than 8,000 shares.