SLG SL GREEN REALTY CORP Management Changes 8-K Filing 2023 - Departure of President SL Green Realty Corp announces the non-renewal of Andrew Mathias' employment agreement and his departure as President of the company, with Mr. Mathias entitled to payments and benefits as a result of the non-renewal. Marc Holliday will be appointed as interim President.Get access to all SEC 8-K filings of the SL GREEN REALTY CORP