Who owns Alcoa (AA)
Which tracked institutional funds hold AA, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AA company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on AA is one-sided between 2026-Q1 and 2026-Q2: 98 added or opened and 298 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
AA’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes AA more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in AA divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 668 tracked filers holding AA, 340 increased or opened the position and 418 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in AA between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 36
- L1 Capital Pty Ltd$75M
- Nykredit A/S$74M
- VOLORIDGE INVESTMENT MANAGEMENT, LLC$34M
- Trexquant Investment LP$16M
- Castle Hook Partners LP$16M
- Driehaus Capital Management LLC$15M
Full exits 82
- Amundi$133M
- Holocene Advisors, LP$56M
- Oxbow Capital Management (HK) Ltd$45M
- Encompass Capital Advisors LLC$40M
- HRT FINANCIAL LP$39M
- CANADA LIFE ASSURANCE Co$24M
Largest adds
- MILLENNIUM MANAGEMENT LLC$103M
- MARSHALL WACE, LLP$67M
- Qube Research & Technologies Ltd$52M
- DEUTSCHE BANK AG\$51M
- BlackRock, Inc.$40M
- FMR LLC$39M
Largest trims
- EAGLE CAPITAL MANAGEMENT LLC$316M
- DIMENSIONAL FUND ADVISORS LP$267M
- VANGUARD PORTFOLIO MANAGEMENT LLC$161M
- VANGUARD CAPITAL MANAGEMENT LLC$159M
- STATE STREET CORP$155M
- AQR CAPITAL MANAGEMENT LLC$130M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 29,315,742 | $1.5B | 15.7% | 2026-Q2 |
| FMR LLC added | 16,996,106 | $886M | 9.1% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 12,995,948 | $678M | 7.0% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 11,926,055 | $622M | 6.4% | 2026-Q2 |
| EAGLE CAPITAL MANAGEMENT LLC trimmed | 11,879,807 | $619M | 6.4% | 2026-Q2 |
| STATE STREET CORP trimmed | 10,875,945 | $567M | 5.8% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 5,845,931 | $305M | 3.1% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC trimmed | 5,829,945 | $304M | 3.1% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 4,086,691 | $213M | 2.2% | 2026-Q2 |
| MORGAN STANLEY trimmed | 3,588,651 | $187M | 1.9% | 2026-Q2 |
| D. E. Shaw & Co., Inc. trimmed | 3,585,857 | $187M | 1.9% | 2026-Q2 |
| Bank of New York Mellon Corp added | 3,187,461 | $166M | 1.7% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 2,765,352 | $144M | 1.5% | 2026-Q2 |
| NORTHERN TRUST CORP added | 2,525,533 | $132M | 1.4% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 2,333,811 | $122M | 1.3% | 2026-Q2 |
| Invesco Ltd. trimmed | 2,147,869 | $112M | 1.2% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 2,081,181 | $109M | 1.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 2,071,392 | $108M | 1.1% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 2,018,371 | $109M | 1.1% | 2026-Q2 |
| NORGES BANK trimmed | 1,983,072 | $103M | 1.1% | 2026-Q2 |
| AGF MANAGEMENT LTD trimmed | 1,844,711 | $96M | 1.0% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 1,669,315 | $87M | 0.9% | 2026-Q2 |
| Maple Rock Capital Partners Inc. added | 1,577,720 | $82M | 0.8% | 2026-Q2 |
| Tidal Investments LLC trimmed | 1,537,702 | $80M | 0.8% | 2026-Q2 |
| MACKENZIE FINANCIAL CORP trimmed | 1,445,372 | $75M | 0.8% | 2026-Q2 |
| L1 Capital Pty Ltd trimmed | 1,435,645 | $75M | 0.8% | 2026-Q2 |
| Nykredit A/S new | 1,427,070 | $74M | 0.8% | 2026-Q2 |
| MARSHALL WACE, LLP added | 1,390,119 | $72M | 0.7% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ trimmed | 1,321,021 | $69M | 0.7% | 2026-Q2 |
| Temasek Holdings (Private) Ltd | 1,300,647 | $68M | 0.7% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 1,216,187 | $63M | 0.7% | 2026-Q2 |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ added | 1,150,120 | $60M | 0.6% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 1,060,767 | $55M | 0.6% | 2026-Q2 |
| UBS Group AG added | 1,060,581 | $55M | 0.6% | 2026-Q2 |
| VAN ECK ASSOCIATES CORP added | 982,917 | $51M | 0.5% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 948,276 | $63M | 0.6% | 2026-Q2 |
| Douglas Lane & Associates, LLC trimmed | 861,598 | $45M | 0.5% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 789,935 | $41M | 0.4% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 757,389 | $39M | 0.4% | 2026-Q2 |
| Man Group plc added | 743,061 | $39M | 0.4% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 722,816 | $38M | 0.4% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 694,266 | $36M | 0.4% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 674,486 | $35M | 0.4% | 2026-Q2 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 642,684 | $34M | 0.3% | 2026-Q2 |
| FEDERATED HERMES, INC. added | 635,176 | $33M | 0.3% | 2026-Q2 |
| Gotham Asset Management, LLC trimmed | 607,628 | $32M | 0.3% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 599,135 | $31M | 0.3% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 584,502 | $30M | 0.3% | 2026-Q2 |
| CAPITAL FUND MANAGEMENT S.A. added | 566,823 | $30M | 0.3% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 565,696 | $29M | 0.3% | 2026-Q2 |
| Global Alpha Capital Management Ltd. trimmed | 558,623 | $29M | 0.3% | 2026-Q2 |
| PANAGORA ASSET MANAGEMENT INC trimmed | 554,111 | $29M | 0.3% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 534,930 | $28M | 0.3% | 2026-Q2 |
| COOKSON PEIRCE & CO INC trimmed | 531,143 | $28M | 0.3% | 2026-Q2 |
| Swiss National Bank added | 529,513 | $28M | 0.3% | 2026-Q2 |
| Grantham, Mayo, Van Otterloo & Co. LLC added | 496,267 | $26M | 0.3% | 2026-Q2 |
| Retirement Systems of Alabama trimmed | 491,437 | $26M | 0.3% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP added | 488,951 | $25M | 0.3% | 2026-Q2 |
| SEI INVESTMENTS CO trimmed | 482,985 | $25M | 0.3% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL added | 470,295 | $25M | 0.3% | 2026-Q2 |
| Hosking Partners LLP trimmed | 461,239 | $24M | 0.2% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 447,487 | $23M | 0.2% | 2026-Q2 |
| ARGA Investment Management, LP trimmed | 447,455 | $23M | 0.2% | 2026-Q2 |
| GENDELL JEFFREY L added | 440,000 | $23M | 0.2% | 2026-Q2 |
| California Public Employees Retirement System trimmed | 425,141 | $22M | 0.2% | 2026-Q2 |
| BARCLAYS PLC added | 412,382 | $22M | 0.2% | 2026-Q2 |
| Nuveen, LLC added | 398,550 | $21M | 0.2% | 2026-Q2 |
| NORDEA INVESTMENT MANAGEMENT AB trimmed | 390,209 | $21M | 0.2% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 388,400 | $20M | 0.2% | 2026-Q2 |
| Drummond Knight Asset Management Pty Ltd trimmed | 385,711 | $20M | 0.2% | 2026-Q2 |
| HSBC HOLDINGS PLC added | 366,741 | $19M | 0.2% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 349,306 | $18M | 0.2% | 2026-Q2 |
| Legal & General Group Plc added | 341,104 | $18M | 0.2% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 320,494 | $17M | 0.2% | 2026-Q2 |
| Trexquant Investment LP added | 313,539 | $16M | 0.2% | 2026-Q2 |
| Castle Hook Partners LP trimmed | 311,506 | $16M | 0.2% | 2026-Q2 |
| FIRST TRUST ADVISORS LP trimmed | 310,246 | $16M | 0.2% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 306,232 | $16M | 0.2% | 2026-Q2 |
| ZACKS INVESTMENT MANAGEMENT added | 301,584 | $16M | 0.2% | 2026-Q2 |
| Jump Financial, LLC added | 300,898 | $16M | 0.2% | 2026-Q2 |
| Driehaus Capital Management LLC new | 296,446 | $15M | 0.2% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 280,006 | $15M | 0.2% | 2026-Q2 |
| IEQ CAPITAL, LLC trimmed | 259,878 | $14M | 0.1% | 2026-Q2 |
| LPL Financial LLC added | 250,414 | $13M | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 241,822 | $13M | 0.1% | 2026-Q2 |
| Daiwa Securities Group Inc. | 237,144 | $12M | 0.1% | 2026-Q2 |
| Old West Investment Management, LLC added | 236,718 | $12M | 0.1% | 2026-Q2 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE trimmed | 231,940 | $12M | 0.1% | 2026-Q2 |
| COZAD ASSET MANAGEMENT INC added | 231,695 | $12M | 0.1% | 2026-Q2 |
| FRANKLIN RESOURCES INC trimmed | 229,358 | $12M | 0.1% | 2026-Q2 |
| WORLDQUANT MILLENNIUM ADVISORS LLC added | 228,869 | $12M | 0.1% | 2026-Q2 |
| IMC-Chicago, LLC added | 225,431 | $12M | 0.1% | 2026-Q2 |
| VANGUARD ASSET MANAGEMENT, Ltd added | 220,848 | $12M | 0.1% | 2026-Q2 |
| Raiffeisen Bank International AG | 213,230 | $11M | 0.1% | 2026-Q2 |
| Regal Partners Ltd trimmed | 211,985 | $11M | 0.1% | 2026-Q2 |
| Mountaineer Partners Management, LLC trimmed | 208,165 | $11M | 0.1% | 2026-Q2 |
| Mariner, LLC trimmed | 208,030 | $11M | 0.1% | 2026-Q2 |
| SCHRODER INVESTMENT MANAGEMENT GROUP added | 204,127 | $11M | 0.1% | 2026-Q2 |
| CAPSTONE INVESTMENT ADVISORS, LLC trimmed | 201,349 | $10M | 0.1% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 199,977 | $10M | 0.1% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.