Kaiser Aluminum Ownership | Who Owns Kaiser Aluminum?
Kaiser Aluminum Ownership Summary
Kaiser Aluminum is owned by 69.86% institutional investors, 1.37% insiders, and 28.77% retail investors. Blackrock is the largest institutional shareholder, holding 18.71% of KALU shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 5.99% of its assets in Kaiser Aluminum shares.
KALU Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Kaiser Aluminum | 69.86% | 1.37% | 28.77% |
| Sector | Basic Materials Stocks | 41.27% | 13.22% | 45.51% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock | 3.00M | 18.71% | $263.64M |
| Blackrock funding, inc. /de | 2.84M | 17.58% | $342.60M |
| Vanguard group | 2.12M | 13.08% | $243.25M |
| State street | 1.33M | 8.24% | $160.63M |
| Dimensional fund advisors lp | 818.31K | 5.06% | $98.61M |
| Macquarie management | 714.18K | 4.42% | $86.06M |
| Barrow hanley mewhinney & strauss | 530.67K | 3.28% | $63.95M |
| American century companies | 478.80K | 2.96% | $57.70M |
| Geode capital management | 404.00K | 2.50% | $48.70M |
| Wellington management group llp | 332.11K | 2.05% | $40.02M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Brightline capital management | 175.00K | 6.24% | $21.09M |
| Tributary capital management | 176.23K | 2.06% | $21.24M |
| 1492 capital management | 43.46K | 1.99% | $5.24M |
| Winslow asset management | 74.00K | 1.73% | $8.92M |
| Icon advisers inc/co | 46.48K | 1.29% | $5.60M |
| Harvest investment advisors | 19.45K | 1.00% | $1.55M |
| Systematic financial management lp | 243.00K | 0.67% | $29.28M |
| Keeley-teton advisors | 73.92K | 0.60% | $5.19M |
| Third avenue management | 29.88K | 0.58% | $3.60M |
| Chesapeake capital corp /il/ | 5.06K | 0.58% | $444.69K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| State street | 1.33M | 0.01% | 366.77K |
| Fisher asset management | 304.51K | 0.01% | 147.43K |
| Two sigma investments, lp | 120.63K | 0.01% | 120.63K |
| Invesco | 268.58K | 0.01% | 117.07K |
| Nuveen | 164.12K | 0.01% | 113.25K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Macquarie group | - | - | -1.01M |
| Massachusetts financial services co /ma/ | - | - | -198.36K |
| Macquarie management | 714.18K | 0.15% | -193.80K |
| Blackrock funding, inc. /de | 2.84M | 0.01% | -154.30K |
| Wellington management group llp | 332.11K | 0.01% | -149.49K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Two sigma investments, lp | 120.63K | 0.01% | 120.63K | $14.54M |
| Vanguard fiduciary trust | 107.18K | 0.00% | 107.18K | $12.92M |
| Covalis capital llp | 69.67K | 0.52% | 69.67K | $8.40M |
| Qube research | 57.86K | 0.01% | 57.86K | $6.97M |
| Trexquant investment lp | 43.09K | 0.04% | 43.09K | $5.19M |
Sold Out
| Holder | Change |
|---|---|
| Tortoise investment management | -1.00 |
| Mendota financial group | -2.00 |
| Bokf, na | -4.00 |
| Stephens consulting | -5.00 |
| Assetmark | -5.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 227 | -16.85% | 11,295,240 | -28.88% | 69 | 0.73% | 115 | -28.57% | 76 | - |
| Dec 31, 2025 | 232 | 8.92% | 13,939,419 | -8.90% | 86 | 0.96% | 133 | 26.67% | 67 | -15.19% |
| Sep 30, 2025 | 209 | 5.56% | 15,550,580 | 1.20% | 96 | 1.06% | 103 | -8.85% | 78 | 39.29% |
| Jun 30, 2025 | 196 | -5.31% | 15,296,968 | 1.43% | 94 | 1.08% | 112 | 12.00% | 55 | -29.49% |
| Mar 31, 2025 | 205 | -0.49% | 15,056,522 | -2.27% | 93 | 1.02% | 99 | -10.00% | 77 | 20.31% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 978.66K | 5.99% | 216.00 |
| Macquarie Small Cap Core I | 760.55K | 4.70% | 7.20K |
| Stt Strt®SPDR®S&P®Mtls &MngETF | 714.21K | 4.37% | -6.40K |
| Delaware Small Cap Core I | 675.11K | 4.20% | -4.18K |
| Nomura Small Cap Core I | 522.61K | 3.20% | -16.63K |
| Nomura US Small Cap Core Equity | 522.61K | 3.20% | 522.55K |
| Vanguard US Total Market Shares ETF | 479.06K | 2.98% | - |
| Vanguard Total Stock Mkt Idx Inv | 465.94K | 2.85% | 1.73K |
| SPDR® S&P Metals and Mining ETF | 455.82K | 2.82% | -1.64K |
| iShares Russell 2000 ETF | 380.24K | 2.33% | 3.20K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Apr 29, 2026 | Grimley Richard P. | - | Sell | $261.40K |
| Apr 29, 2026 | Harvey Keith | President & CEO | Sell | $524.76K |
| Apr 27, 2026 | Wilcox Brett | - | Sell | $2.62M |
| Apr 27, 2026 | DONNAN JOHN MALCOLM | EVP, CAO and GC | Sell | $488.81K |
| Apr 27, 2026 | Gheorghe Iulian | SVP - Adv Eng & Innovation | Sell | $30.49K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 7 |
| 2026 Q1 | - | 2 |
| 2025 Q4 | - | 1 |
| 2025 Q3 | - | - |
| 2025 Q2 | - | - |
KALU Ownership FAQ
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