IEC: SHAREHOLDER INVESTIGATION: Halper Sadeh LLP Investigates HFC, NLOK, IEC; Shareholders are Encouraged to Contact the Firm

(marketscreener.com) NEW YORK, Sept. 04, 2021 -- Halper Sadeh LLP, a global investor rights law firm, announces it is investigating the following companies: HollyFrontier Corporation concerning potential violations of the federal securities laws and/or breaches of fiduciary duties relating to HollyFrontier's and Holly Energy Partners, L.P.'s...https://www.marketscreener.com/news/latest/SHAREHOLDER-INVESTIGATION-Halper-Sadeh-LLP-Investigates-HFC-NLOK-IEC-Shareholders-are-Encouraged--36337912/?utm_medium=RSS&utm_content=20210904