Lauren Gellhaus, head of environmental, social and governance for the $199.9 billion Texas Teacher Retirement System, left the Austin-based pension fund Aug. 8.
Spokesman Rob Maxwell confirmed Ms. Gellhaus' departure in an email and in response to a question about her replacement said "we typically don't comment on employee matters."
Mr. Maxwell also said TRS doesn't "offer a breakout value of any ESG strategies."
In a post on her LinkedIn page, Ms. Gellhaus said she "ended an amazing chapter in my career. After five plus years at the Teacher Retirement System of Texas, I logged off for the last time. TRS will always feel like home."
Ms. Gellhaus could not be reached for comment on her next role.
She joined TRS in September of 2017 and held a number of positions before being named the retirement system's first head of ESG in January 2020 overseeing ESG initiatives.
Texas Teachers is among the Texas public pension funds and other state entities that are affected by a 2021 state law that restricts them from investing in financial companies that divest from fossil fuels.
Texas Comptroller Glenn Hegar released a list of 10 financial companies that he said "boycott energy companies," including BlackRock.