Blackrock
BLK
2,419 hedge funds and large institutions have $126B invested in Blackrock in 2025 Q4 according to their latest regulatory filings, with 315 funds opening new positions, 912 increasing their positions, 839 reducing their positions, and 127 closing their positions.
148% more first-time investments, than exits
New positions opened: 315 | Existing positions closed: 127
6% more funds holding
Funds holding: 2,279 → 2,419 (+140)
2.32% more ownership
Funds ownership: 74.86% → 77.19% (+2.3%)
9% more repeat investments, than reductions
Existing positions increased: 912 | Existing positions reduced: 839
6% less capital invested
Capital invested by funds: $135B → $126B (-$8.7B)
13% less funds holding in top 10
Funds holding in top 10: 45 → 39 (-6)
31% less call options, than puts
Call options by funds: $1.23B | Put options by funds: $1.79B
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OHIS
Oak Harvest Investment Services
Houston,
Texas
|
+$1.73B |
| 2 |
Wellington Management Group
Boston,
Massachusetts
|
+$1.06B |
| 3 |
VH
ValueAct Holdings
San Francisco,
California
|
+$760M |
| 4 |
Franklin Resources
San Mateo,
California
|
+$277M |
| 5 |
Citadel Advisors
Miami,
Florida
|
+$273M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Capital World Investors
Los Angeles,
California
|
-$2.7B |
| 2 |
Viking Global Investors
Stamford,
Connecticut
|
-$722M |
| 3 |
DZ Bank
Frankfurt Am Main,
Germany
|
-$603M |
| 4 |
Citigroup
New York
|
-$236M |
| 5 |
Goldman Sachs
New York
|
-$202M |
BLK Hedge Fund Activity: Q4 2025 in Review
2,419 institutional investors reported a position in Blackrock (BLK) for Q4 2025, worth a combined $126B — down 6.4% from $135B a quarter earlier.
Buyers outnumbered sellers: 315 funds opened new BLK positions and 127 closed out — a net gain of 188 holders — while 912 added to existing stakes and 839 trimmed.
The largest buyer was Oak Harvest Investment Services, adding an estimated $1.73B. The largest seller was Capital World Investors, cutting an estimated $2.7B.
- 2,419 institutional investors held Blackrock (BLK) as of Q4 2025, up from 2,279 in Q3 2025.
- Funds reported $126B of Blackrock stock for Q4 2025, down 6.4% quarter-over-quarter.
- 315 funds opened new Blackrock positions in Q4 2025 and 127 closed out, a net change of +188 holders.
- The largest Blackrock buyer in Q4 2025 was Oak Harvest Investment Services, an estimated $1.73B added.
- The largest Blackrock seller in Q4 2025 was Capital World Investors, an estimated $2.7B sold.
Based on aggregated 13F filings for Q4 2025.