Jonathan Bock has stepped down as Co-Chief Executive Officer of Blackstone Secured Lending Fund (BXSL), the company confirmed in an 8-K filing with the Securities and Exchange Commission on July 24.

The filing states that Bock’s departure was not the result of any disagreement with Blackstone or the Fund regarding operations, policies, or practices.

Bock served in the co-CEO role alongside his counterpart, a structure designed to provide dual leadership for the business development company.

The resignation introduces a layer of near-term uncertainty for BXSL investors, particularly as the fund prepares to report second-quarter earnings on July 28.

Leadership transitions in BDCs can signal shifts in investment strategy or risk appetite, prompting traders to scrutinize upcoming guidance for changes in loan origination pace or credit standards.

While the filing characterizes the exit as amicable, the loss of a top executive shortly before a major earnings release often leads to heightened volatility as the market assesses the stability of the remaining management team.