BLK Institutional Owners (13F)
2 tracked funds disclose BLK (BLACKROCK INC) in their latest 13F filings. Weights and values are from SEC EDGAR Form 13F-HR.
Hedge funds holding BLK
Ranked by portfolio weight in each fund's disclosed 13F book.
| Fund | Weight | Value | Shares | Filing | Recent change |
|---|---|---|---|---|---|
| Citadel Advisors Ken Griffin | 0.6% | $1.1B | 1.10M | Q2 2026 | Added 56.05% |
| Millennium Management Israel Englander | 0.3% | $476M | 495.3K | Q2 2026 | Reduced 22.8% |
Members of Congress trade BLK too: who disclosed trades in it under the STOCK Act, how often, and the latest filings.
Congress trades in BLKResearch 13F filings against your own holdings
See how Wealthnow would research disclosed BLK positions against your own holdings. These strategies are research only, and trading from 13F filings is not enabled.
Frequently asked questions
Which hedge funds own BLK?
Among funds tracked here, 2 disclose a BLK position in their latest 13F: Citadel Advisors, Millennium Management. Weights and values come from each fund's SEC Form 13F-HR filing.
What is the largest BLK position among tracked funds?
Citadel Advisors (Ken Griffin) shows the largest weight in this set at about 0.6%, roughly $1.1B.
Can Wealthnow research institutional BLK holders?
Wealthnow can research disclosed 13F positions in BLK against your own holdings. These strategies are research only, and trading from 13F filings is not enabled. Your money stays at your broker.