Kaiser Aluminum
KALU
266 hedge funds and large institutions have $1.82B invested in Kaiser Aluminum in 2025 Q4 according to their latest regulatory filings, with 76 funds opening new positions, 85 increasing their positions, 75 reducing their positions, and 22 closing their positions.
987% more call options, than puts
Call options by funds: $7.12M | Put options by funds: $655K
300% more funds holding in top 10
Funds holding in top 10: 1 → 4 (+3)
245% more first-time investments, than exits
New positions opened: 76 | Existing positions closed: 22
38% more capital inflows, than outflows
Capital inflows: $239M | Capital outflows: $173M
25% more funds holding
Funds holding: 212 → 266 (+54)
13% more repeat investments, than reductions
Existing positions increased: 85 | Existing positions reduced: 75
2.8% more ownership
Funds ownership: 94.75% → 97.54% (+2.8%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Arrowstreet Capital
Boston,
Massachusetts
|
+$19.2M |
| 2 |
BCM
Brightline Capital Management
Miami,
Florida
|
+$16M |
| 3 |
Goldman Sachs
New York
|
+$9.03M |
| 4 |
D.E. Shaw & Co
New York
|
+$6M |
| 5 |
Hillsdale Investment Management
Toronto,
Ontario, Canada
|
+$4.48M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Macquarie Group
Sydney, NSW 2000,
Australia
|
-$78M |
| 2 |
Barrow, Hanley, Mewhinney & Strauss
Dallas,
Texas
|
-$19.9M |
| 3 |
State Street
Boston,
Massachusetts
|
-$17.8M |
| 4 |
INTECH Investment Management
West Palm Beach,
Florida
|
-$5.72M |
| 5 |
Empowered Funds
Havertown,
Pennsylvania
|
-$5.28M |
KALU Hedge Fund Activity: Q4 2025 in Review
266 of the 8,288 institutional investors tracked by Wall St. Rank reported a position in Kaiser Aluminum (KALU) for Q4 2025, worth a combined $1.82B — up 54% from $1.18B a quarter earlier.
Buyers outnumbered sellers: 76 funds opened new KALU positions and 22 closed out — a net gain of 54 holders — while 85 added to existing stakes and 75 trimmed.
The largest buyer was Arrowstreet Capital, adding an estimated $19.2M. The largest seller was Macquarie Group, exiting entirely with an estimated $78M sold.
- 266 institutional investors held Kaiser Aluminum (KALU) as of Q4 2025, up from 212 in Q3 2025.
- Funds reported $1.82B of Kaiser Aluminum stock for Q4 2025, up 54% quarter-over-quarter.
- 76 funds opened new Kaiser Aluminum positions in Q4 2025 and 22 closed out, a net change of +54 holders.
- The largest Kaiser Aluminum buyer in Q4 2025 was Arrowstreet Capital, an estimated $19.2M added.
- The largest Kaiser Aluminum seller in Q4 2025 was Macquarie Group, an estimated $78M sold.
Based on aggregated 13F filings for Q4 2025.