---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-053022"
form_type: "8-K"
ticker: "BLK"
cik: "0002012383"
company_name: "BlackRock, Inc."
filed_at: "2025-04-11T23:59:59+00:00"
generated_at: "2026-05-23T16:38:00.133684+00:00"
event_type: "earnings"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "medium"
source: SEC EDGAR
---

# BlackRock reports Q1 2025 AUM of $11.6T; base fees up 17% YoY to $4.4B

## Summary
- AUM of $11.6 trillion at March 31, 2025; base fees and securities lending revenue totaled $4.4B in Q1.
- Total revenue increased 12% year-over-year, but decreased 7% sequentially from Q4 2024.
- Operating expenses as adjusted rose 10% YoY; total expenses as adjusted down 3% sequentially.
- Year-over-year base fee growth of 17% included approximately $285M in fees from the GIP acquisition.
- Long-term organic asset growth rates: Retail 4%, Institutional Active 3%, ETFs 11% (LTM).

## SEC filing metadata
- accession: 0000950170-25-053022
- form_type: 8-K
- ticker: BLK
- cik: 0002012383
- company_name: BlackRock, Inc.
- filed_at: 2025-04-11T23:59:59+00:00
- event_type: earnings
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: medium
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2012383/000095017025053022/0000950170-25-053022-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2012383/000095017025053022/blk-20250411.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-053022
- JSON: https://secwatch.observer/filing/0000950170-25-053022.json
- Plain text: https://secwatch.observer/filing/0000950170-25-053022.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.