KALU Institutional Ownership & Shareholders
KAISER ALUMINUM CORP (KALU) is currently held by 327 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $3.10B based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of KALU tracked by InsiderSet, reporting ownership valued at approximately $561.57M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $333.79M, representing an estimated loss of -40.56% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 60% of the total disclosed KALU value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, State Street Corp, and several other long-term asset managers with concentrated positions in KAISER ALUMINUM CORP (KALU).
This page ranks the largest institutional KALU shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
327
Total Reported Value
$3.10B
Largest Holder
Blackrock, Inc.
Largest Position
$561.57M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
74
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 2,870,588 | $561,573,198 | $333,791,973 | -$227,781,225 | -40.56% | |
| Vanguard Portfolio Management Llc | 0.01% | 1,413,170 | $276,458,447 | $164,323,408 | -$112,135,039 | -40.56% | |
| State Street Corp | 0.01% | 1,317,519 | $257,734,935 | $153,201,109 | -$104,533,826 | -40.56% | |
| Dimensional Fund Advisors Lp | 0.03% | 775,944 | $151,786,589 | $90,226,768 | -$61,559,821 | -40.56% | |
| Vanguard Capital Management Llc | 0.00% | 707,161 | $138,341,906 | $82,228,681 | -$56,113,225 | -40.56% | |
| Nomura Asset Management International Inc. | 0.20% | 679,387 | $132,908,000 | $78,999,120 | -$53,908,880 | -40.56% | |
| Geode Capital Management, Llc | 0.00% | 471,735 | $92,301,654 | $54,853,346 | -$37,448,308 | -40.57% | |
| American Century Companies Inc | 0.04% | 439,923 | $86,062,187 | $51,154,246 | -$34,907,941 | -40.56% | |
| Barrow Hanley Mewhinney & Strauss Llc | 0.25% | 419,050 | $81,978,751 | $48,727,134 | -$33,251,617 | -40.56% | |
| Fisher Asset Management, Llc | 0.02% | 352,761 | $69,010,632 | $41,019,049 | -$27,991,583 | -40.56% | |
| Charles Schwab Investment Management Inc | 0.01% | 259,873 | $50,838,955 | $30,218,032 | -$20,620,923 | -40.56% | |
| Invesco Ltd. | 0.00% | 256,161 | $50,112,776 | $29,786,401 | -$20,326,375 | -40.56% | |
| Systematic Financial Management Lp | 0.91% | 232,240 | $45,433,394 | $27,004,867 | -$18,428,527 | -40.56% | |
| Goldman Sachs Group Inc | 0.00% | 227,467 | $44,499,369 | $26,449,863 | -$18,049,506 | -40.56% | |
| Bank Of New York Mellon Corp | 0.01% | 196,048 | $38,352,889 | $22,796,461 | -$15,556,428 | -40.56% | |
| Morgan Stanley | 0.00% | 194,659 | $38,081,209 | $22,634,949 | -$15,446,260 | -40.56% | |
| Northern Trust Corp | 0.00% | 185,992 | $36,385,615 | $21,627,150 | -$14,758,465 | -40.56% | |
| Wellington Management Group Llp | 0.01% | 178,672 | $34,953,604 | $20,775,980 | -$14,177,624 | -40.56% | |
| Nuveen, Llc | 0.01% | 173,822 | $34,004,636 | $20,212,022 | -$13,792,614 | -40.56% | |
| Bank Of America Corp | 0.00% | 170,173 | $33,290,944 | $19,787,716 | -$13,503,228 | -40.56% | |
| Westfield Capital Management Co Lp | 0.10% | 163,465 | $31,978,658 | $19,007,710 | -$12,970,948 | -40.56% | |
| Two Sigma Investments, Lp | 0.02% | 156,166 | $30,550,755 | $18,158,982 | -$12,391,773 | -40.56% | |
| First Eagle U.S. Value | Jean-Marie Eveillard | 0.04% | 138,431 | $27,081,256 | $16,096,757 | -$10,984,499 | -40.56% |
| Algert Global Llc | 0.29% | 125,576 | $24,566,433 | $14,601,977 | -$9,964,456 | -40.56% | |
| Panagora Asset Management Inc | 0.07% | 124,915 | $24,437,121 | $14,525,116 | -$9,912,005 | -40.56% | |
| Vanguard Fiduciary Trust Co | 0.00% | 115,624 | $22,619,523 | $13,444,759 | -$9,174,764 | -40.56% | |
| Bessemer Group Inc | 0.03% | 109,463 | $21,413,000 | $12,728,358 | -$8,684,642 | -40.56% | |
| Jane Street Group, Llc | 0.01% | 108,370 | $21,200,423 | $12,601,264 | -$8,599,159 | -40.56% | |
| Bridgeway Capital Management, Llc | 0.35% | 100,434 | $19,647,903 | $11,678,466 | -$7,969,437 | -40.56% | |
| D. E. Shaw & Co., Inc. | 0.01% | 100,368 | $19,634,992 | $11,670,791 | -$7,964,201 | -40.56% | |
| First Trust Advisors Lp | 0.01% | 91,215 | $17,844,390 | $10,606,480 | -$7,237,910 | -40.56% | |
| Acadian Asset Management Llc | 0.02% | 88,064 | $17,211,000 | $10,240,082 | -$6,970,918 | -40.50% | |
| Victory Capital Management Inc | 0.01% | 86,838 | $16,988,118 | $10,097,523 | -$6,890,595 | -40.56% | |
| Principal Financial Group Inc | 0.01% | 114,913 | $16,641,700 | $13,362,084 | -$3,279,616 | -19.71% | |
| Canada Life Assurance Co | 0.03% | 84,882 | $16,607,000 | $9,870,079 | -$6,736,921 | -40.57% | |
| Trexquant Investment Lp | 0.10% | 81,259 | $15,896,698 | $9,448,797 | -$6,447,901 | -40.56% | |
| Hotchkis & Wiley Capital Management Llc | 0.04% | 76,830 | $15,030,253 | $8,933,792 | -$6,096,461 | -40.56% | |
| Winslow Asset Management Inc | 2.44% | 71,827 | $14,051,000 | $8,352,044 | -$5,698,956 | -40.56% | |
| Prudential Financial Inc | 0.01% | 66,075 | $12,926,252 | $7,683,201 | -$5,243,051 | -40.56% | |
| Arrowstreet Capital, Limited Partnership | 0.01% | 64,176 | $12,554,751 | $7,462,385 | -$5,092,366 | -40.56% | |
| Hrt Financial Lp | 0.02% | 61,202 | $11,972,000 | $7,116,569 | -$4,855,431 | -40.56% | |
| Healthcare Of Ontario Pension Plan Trust Fund | 0.02% | 58,296 | $11,404,446 | $6,778,659 | -$4,625,787 | -40.56% | |
| Public Sector Pension Investment Board | 0.03% | 55,592 | $10,875,463 | $6,464,238 | -$4,411,225 | -40.56% | |
| Ubs Group Ag | 0.00% | 53,035 | $10,375,238 | $6,166,910 | -$4,208,328 | -40.56% | |
| Empowered Funds, Llc | 0.05% | 52,900 | $10,348,827 | $6,151,212 | -$4,197,615 | -40.56% | |
| Mackenzie Financial Corp | 0.01% | 63,050 | $9,130,901 | $7,331,454 | -$1,799,447 | -19.71% | |
| Norges Bank | 0.00% | 46,500 | $9,096,795 | $5,407,020 | -$3,689,775 | -40.56% | |
| Nfj Investment Group, Llc | 0.31% | 46,404 | $9,078,014 | $5,395,857 | -$3,682,157 | -40.56% | |
| Tributary Capital Management, Llc | 0.81% | 61,282 | $8,874,859 | $7,125,871 | -$1,748,988 | -19.71% | |
| Bnp Paribas Financial Markets | 0.00% | 45,337 | $8,869,277 | $5,271,786 | -$3,597,491 | -40.56% |
Frequently asked questions about KALU
Who are the largest institutional holders of KALU?
The largest institutional holders of KALU reported in the latest SEC Form 13F filings include Blackrock, Inc., Vanguard Portfolio Management Llc, State Street Corp, Dimensional Fund Advisors Lp, and Vanguard Capital Management Llc. InsiderSet ranks institutional holders by their latest reported KALU position.
What is KALU institutional ownership?
This page tracks KALU positions reported by institutional investment managers through SEC Form 13F. KAISER ALUMINUM CORP (KALU) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own KALU?
InsiderSet currently tracks 327 institutional managers reporting KALU holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of KALU shareholders.
How much KALU stock do institutions own?
Institutional investment managers disclosed approximately $3.10B in KALU holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was KALU institutional ownership last updated?
The latest KALU institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional KALU holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its KALU position after the reporting date.
Are institutions buying or selling KALU?
Institutional buying and selling can be analyzed by comparing KALU positions across consecutive 13F reporting periods. InsiderSet's KALU Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View KALU ownership changes.
How has KALU institutional ownership changed over time?
InsiderSet tracks KALU institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.