BlackRock's quarterly results complete a banner year for the asset manager, which has sought to strengthen its position in rapidly growing private markets, spending about $25 billion last year on infrastructure investment fund Global Infrastructure Partners and private credit business HPS Investment Partners.

Key Takeaways BlackRock's assets under management surged 15% year-over-year to $11.55 trillion.The asset manager beat estimates for earnings and revenue in the period.CEO Larry Fink noted that this was the second straight quarter of record inflows for BlackRock.

BlackRock said in its fourth-quarter earnings report Wednesday that assets under management jumped to a record $11.55 trillion, up from $10 trillion a year ago. Analysts surveyed by FactSet had expected BlackRock to report a record $11.

Mark Wiedman was most recently head of BlackRock’s global client business

Asset manager BlackRock's senior executive Mark Wiedman, who was touted to be a potential successor to CEO Larry Fink, is departing the firm, said two sources familiar with the matter.

Wiedman, head of the global client business, was instrumental in driving BlackRock's growth in passive investing.