Blackrock
BLK
2,342 hedge funds and large institutions have $113B invested in Blackrock in 2026 Q1 according to their latest regulatory filings, with 161 funds opening new positions, 899 increasing their positions, 947 reducing their positions, and 207 closing their positions.
5% less repeat investments, than reductions
Existing positions increased: 899 | Existing positions reduced: 947
1.42% less ownership
Funds ownership: 77.15% → 75.74% (-1.4%)
3% less funds holding
Funds holding: 2,423 → 2,342 (-81)
10% less capital invested
Capital invested by funds: $126B → $113B (-$13.2B)
15% less call options, than puts
Call options by funds: $1.22B | Put options by funds: $1.43B
22% less first-time investments, than exits
New positions opened: 161 | Existing positions closed: 207
33% less funds holding in top 10
Funds holding in top 10: 39 → 26 (-13)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
+$2.31B |
| 2 |
Capital Research Global Investors
Los Angeles,
California
|
+$812M |
| 3 |
AQR Capital Management
Greenwich,
Connecticut
|
+$370M |
| 4 |
Citadel Advisors
Miami,
Florida
|
+$315M |
| 5 |
Goldman Sachs
New York
|
+$302M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OHIS
Oak Harvest Investment Services
Houston,
Texas
|
-$1.67B |
| 2 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
-$596M |
| 3 |
Capital International Investors
Los Angeles,
California
|
-$523M |
| 4 |
DZ Bank
Frankfurt Am Main,
Germany
|
-$335M |
| 5 |
Fidelity Investments
Boston,
Massachusetts
|
-$325M |
BLK Hedge Fund Activity: Q1 2026 in Review
2,342 of the 8,208 institutional investors tracked by Wall St. Rank reported a position in Blackrock (BLK) for Q1 2026, worth a combined $113B — down 10% from $126B a quarter earlier.
Sellers outnumbered buyers: 207 funds closed out of BLK and 161 opened new positions — a net loss of 46 holders — while 947 trimmed existing stakes and 899 added.
The largest buyer was Wellington Management Group, adding an estimated $2.31B. The largest seller was Oak Harvest Investment Services, cutting an estimated $1.67B.
- 2,342 institutional investors held Blackrock (BLK) as of Q1 2026, down from 2,423 in Q4 2025.
- Funds reported $113B of Blackrock stock for Q1 2026, down 10% quarter-over-quarter.
- 161 funds opened new Blackrock positions in Q1 2026 and 207 closed out, a net change of -46 holders.
- The largest Blackrock buyer in Q1 2026 was Wellington Management Group, an estimated $2.31B added.
- The largest Blackrock seller in Q1 2026 was Oak Harvest Investment Services, an estimated $1.67B sold.
Based on aggregated 13F filings for Q1 2026.