Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in KALU held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 2.9M | $561.6M | +1.0% | 17.558% | 0.01% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 1.4M | $276.5M | +8.0% | 8.644% | 0.01% |
| 3 | STATE STREET CORP | 1.3M | $257.7M | -1.2% | 8.059% | 0.00% |
| 4 | DIMENSIONAL FUND ADVISORS LP | 776K | $151.8M | -5.2% | 4.746% | 0.03% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 707K | $138.3M | +5.6% | 4.325% | 0.00% |
| 6 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. | 679K | $132.9M | -4.9% | 4.155% | 0.20% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 472K | $92.3M | +16.8% | 2.885% | 0.00% |
| 8 | AMERICAN CENTURY COMPANIES INC | 440K | $86.1M | -8.1% | 2.691% | 0.04% |
| 9 | BARROW HANLEY MEWHINNEY & STRAUSS LLC | 419K | $82.0M | -21.0% | 2.563% | 0.25% |
| 10 | Fisher Asset Management, LLC | 353K | $69.0M | +15.8% | 2.158% | 0.02% |
| 11 | FRANKLIN RESOURCES INC | 272K | $53.3M | +4181.5% | 1.666% | 0.01% |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 260K | $50.8M | -7.4% | 1.589% | 0.01% |
| 13 | Invesco Ltd. | 256K | $50.1M | -4.6% | 1.567% | 0.00% |
| 14 | SYSTEMATIC FINANCIAL MANAGEMENT LP | 232K | $45.4M | -4.4% | 1.421% | 0.91% |
| 15 | GOLDMAN SACHS GROUP INC | 227K | $44.5M | +47.7% | 1.391% | 0.00% |
| 16 | Bank of New York Mellon Corp | 196K | $38.4M | -0.3% | 1.199% | 0.01% |
| 17 | MORGAN STANLEY | 195K | $38.1M | +13.1% | 1.191% | 0.00% |
| 18 | NORTHERN TRUST CORP | 186K | $36.4M | +6.6% | 1.138% | 0.00% |
| 19 | WELLINGTON MANAGEMENT GROUP LLP | 179K | $35.0M | -46.2% | 1.093% | 0.01% |
| 20 | Nuveen, LLC | 174K | $34.0M | +5.9% | 1.063% | 0.01% |
| 21 | BANK OF AMERICA CORP /DE/ | 170K | $33.3M | -0.7% | 1.041% | 0.00% |
| 22 | WESTFIELD CAPITAL MANAGEMENT CO LP | 163K | $32.0M | — | 1.000% | 0.10% |
| 23 | TWO SIGMA INVESTMENTS, LP | 156K | $30.6M | +29.5% | 0.955% | 0.02% |
| 24 | First Eagle Investment Management, LLC | 138K | $27.1M | +25.0% | 0.847% | 0.02% |
| 25 | JANE STREET GROUP, LLC | 135K | $26.4M | +100.2% | 0.825% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in KALU — a direct measure of their conviction.
Filings activity in KALU during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 335 | +18% | 100.99% | +3.05 pp | $3.12B | +65% |
| Q1 2026 | 284 | +7.6% | 97.94% | 0.22 pp | $1.89B | +5.8% |
| Q4 2025 | 264 | +28% | 98.16% | +2.35 pp | $1.79B | +49% |
| Q3 2025 | 206 | +6.7% | 95.81% | +1.43 pp | $1.20B | +0.3% |
| Q2 2025 | 193 | 5.4% | 94.38% | +1.06 pp | $1.20B | +34% |
| Q1 2025 | 204 | +1.5% | 93.32% | 2.20 pp | $894M | 16% |
| Q4 2024 | 201 | 1.5% | 95.52% | 0.27 pp | $1.06B | 3.1% |
| Q3 2024 | 204 | — | 95.79% | — | $1.09B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying KALU stock.
Based on Q2 2026 13F filings, institutional ownership of Kaiser Aluminum Corporation stands at 101.0%, held across 335 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of KALU, with approximately 2,870,588 shares worth $0.56B as of Q2 2026.
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of KALU, including Fisher Asset Management, LLC, TWO SIGMA INVESTMENTS, LP, JANE STREET GROUP, LLC.
Our composite Smart Money Score for KALU is 82 out of 100 (Strong Smart Money). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
73 institutions opened new positions in KALU during Q2 2026, while 26 fully exited. 222 added to existing positions and 28 trimmed.
KALU institutional ownership rose by 3.05 percentage points quarter-over-quarter, with a net change of +51 holders.
The top 10 institutions account for 59.2% of all reported 13F value in KALU, and the top 25 account for 77.6%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Kaiser Aluminum Corporation (KALU) Institutional Ownership