Alcoa Corporation (AA) Ownership
AA ownership summary
as of October 18, 2026- Institutions
- 85.8% of shares outstanding
- Insiders
- 0.52% of shares outstanding
- Shares outstanding
- 263.9M
- Float
- 262.8M shares available to trade
- Short interest
- 4.45% 11.7M shares short
- Days to cover
- 3.12 short interest down 3.8% vs prior month
- Institutions 85.80%
- Insiders 0.52%
- Other investors 13.68%
AA top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 11.11% | 29.3M | $1.22B | +923,109 (+3.3%) | June 30, 2026 |
| 2 | FMR Inc | 6.44% | 17.0M | $704.5M | +4.1M (+32.2%) | June 30, 2026 |
| 3 | Vanguard Portfolio Management, LLC | 4.92% | 13.0M | $538.7M | +351,013 (+2.8%) | June 30, 2026 |
| 4 | Vanguard Capital Management, LLC | 4.52% | 11.9M | $494.3M | +149,405 (+1.3%) | June 30, 2026 |
| 5 | Eagle Capital Management LLC | 4.50% | 11.9M | $492.4M | −2.2M (−15.7%) | June 30, 2026 |
| 6 | State Street Corp | 4.12% | 10.9M | $450.8M | −5,592 (−0.1%) | June 30, 2026 |
| 7 | Dimensional Fund Advisors, Inc. | 2.22% | 5.8M | $242.3M | −2.8M (−32.2%) | June 30, 2026 |
| 8 | Geode Capital Management, LLC | 2.21% | 5.8M | $241.7M | −112,856 (−1.9%) | June 30, 2026 |
| 9 | AQR Capital Management LLC | 1.55% | 4.1M | $169.4M | −1.1M (−21.0%) | June 30, 2026 |
| 10 | Morgan Stanley - Brokerage Accounts | 1.36% | 3.6M | $148.7M | −507,159 (−12.4%) | June 30, 2026 |
| 11 | D. E. Shaw & Co LP | 1.36% | 3.6M | $148.6M | −25,303 (−0.7%) | June 30, 2026 |
| 12 | Bank of New York Mellon Corp | 1.21% | 3.2M | $132.1M | +47,294 (+1.5%) | June 30, 2026 |
| 13 | Qube Research & Technologies | 1.05% | 2.8M | $114.6M | +1.4M (+99.0%) | June 30, 2026 |
| 14 | Northern Trust Corp | 0.96% | 2.5M | $104.7M | +305,866 (+13.8%) | June 30, 2026 |
| 15 | Millennium Management LLC | 0.88% | 2.3M | $96.7M | +2.0M (+720.0%) | June 30, 2026 |
| 16 | Amvescap Plc. | 0.81% | 2.1M | $89.0M | −1.5M (−40.8%) | June 30, 2026 |
| 17 | Charles Schwab Investment Management Inc | 0.79% | 2.1M | $86.3M | −23,467 (−1.1%) | June 30, 2026 |
| 18 | MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.78% | 2.1M | $85.9M | +161,969 (+8.5%) | June 30, 2026 |
| 19 | JPMorgan Chase & Co | 0.76% | 2.0M | $83.7M | −997,784 (−33.1%) | June 30, 2026 |
| 20 | NORGES BANK | 0.75% | 2.0M | $82.2M | +711,291 (+55.9%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 10 holders added 10.2M shares and 10 cut 9.2M.
AA top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Mid-Cap ETF | 3.56% | 9.4M | $389.7M | −3,360 (−0.0%) | September 30, 2026 |
| 2 | Vanguard MStar Total Stk Mkt Idx Invest | 3.18% | 8.4M | $347.4M | −24,835 (−0.3%) | August 31, 2026 |
| 3 | Vanguard Small Cap Index | 2.25% | 5.9M | $246.3M | −130,546 (−2.2%) | September 30, 2026 |
| 4 | Stt Strt®SPDR®S&P®Mtls &MngETF | 1.67% | 4.4M | $182.4M | +44,520 (+1.0%) | September 30, 2026 |
| 5 | Vanguard MStar Small Cap Value Index | 1.46% | 3.9M | $160.2M | +10,015 (+0.3%) | September 30, 2026 |
| 6 | Fidelity OTC | 1.40% | 3.7M | $152.7M | — | August 31, 2026 |
| 7 | Fidelity Puritan | 0.97% | 2.5M | $105.6M | −132,500 (−4.9%) | July 31, 2026 |
| 8 | Global X US Infrastructure Dev ETF | 0.82% | 2.2M | $89.9M | +15,300 (+0.7%) | September 30, 2026 |
| 9 | State Street® SPDR® S&P MIDCAP 400® ETF | 0.74% | 2.0M | $80.9M | +21,464 (+1.1%) | September 30, 2026 |
| 10 | BGF World Mining A2 | 0.64% | 1.7M | $70.1M | −459,497 (−21.4%) | June 30, 2026 |
| 11 | Eagle Capital Select Equity ETF | 0.61% | 1.6M | $67.0M | +15,470 (+1.0%) | September 30, 2026 |
| 12 | Fidelity Advisor Equity Growth I | 0.59% | 1.6M | $64.3M | −413,400 (−21.0%) | August 31, 2026 |
| 13 | Multipartner Konwave Transtn Mtls C CHF | 0.58% | 1.5M | $63.3M | — | September 30, 2026 |
| 14 | Fidelity VIP Growth Initial | 0.55% | 1.5M | $60.4M | −345,600 (−19.2%) | August 31, 2026 |
| 15 | State Street SPDR Port S&P 400 Md CpETF | 0.53% | 1.4M | $57.8M | −1,960 (−0.1%) | September 30, 2026 |
| 16 | iShares S&P Mid-Cap 400 Value ETF | 0.52% | 1.4M | $56.5M | — | September 30, 2026 |
| 17 | Fidelity Extended Market Index | 0.49% | 1.3M | $53.3M | −12,681 (−1.0%) | August 31, 2026 |
| 18 | DFA US Small Cap Value I | 0.45% | 1.2M | $48.8M | +81,753 (+7.5%) | August 31, 2026 |
| 19 | DFA US Targeted Value I | 0.43% | 1.1M | $46.9M | — | August 31, 2026 |
| 20 | Fidelity Mid-Cap Stock | 0.42% | 1.1M | $45.9M | −86,600 (−7.3%) | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
AA insider transactions
latest 6| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-01-13 | Michael T. McCaul | Sell | $65.37 | — | — |
| 2025-10-27 | Michael T. McCaul | Sell | $39.93 | — | — |
| 2025-08-21 | Michael T. McCaul | Sell | $29.51 | — | — |
| 2025-06-16 | Michael T. McCaul | Sell | $28.96 | — | — |
| 2024-10-22 | Renato Bacchi | Sell | $42.29 | 23,867 | $1.0M |
| 2024-03-13 | Tammi A Jones | Sell | $30.78 | 26,468 | $814,685 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
AA shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns AA
Institutional investors own 85.8% of Alcoa's shares and insiders 0.52%. The largest holder is BlackRock Inc with 11.11% of the shares (29.3M), as of June 30, 2026. Among the top 20 institutions, 10 added shares and 10 reduced their stake in the latest filings. Short interest is 4.45% of the float, or 3.12 days of average trading volume. The share count rose 6.5% since 2014.
Related: AA analyst forecast, AA key metrics, AA dividend history. See the AA stock overview for the latest quote and news.
AA ownership FAQ
Who owns the most Alcoa stock?
The largest shareholders of Alcoa are BlackRock Inc (11.11%), FMR Inc (6.44%), Vanguard Portfolio Management, LLC (4.92%), Vanguard Capital Management, LLC (4.52%), Eagle Capital Management LLC (4.50%).
What percentage of Alcoa is owned by institutions?
Institutions hold 85.8% of Alcoa's shares outstanding; insiders hold 0.52%.
Which funds own Alcoa?
The largest fund holders of Alcoa are iShares Core S&P Mid-Cap ETF (3.56%), Vanguard MStar Total Stk Mkt Idx Invest (3.18%), Vanguard Small Cap Index (2.25%), Stt Strt®SPDR®S&P®Mtls &MngETF (1.67%), Vanguard MStar Small Cap Value Index (1.46%).
What is Alcoa's short interest?
11.7M shares of Alcoa were sold short, 4.45% of the float; at the average daily volume it would take 3.12 days to cover.
Are insiders buying or selling Alcoa?
Of the latest 6 reported insider transactions in Alcoa (since March 13, 2024), 0 were purchases and 6 were sales.
How many shares of Alcoa are outstanding?
Alcoa has 263.9M shares outstanding, of which 262.8M are in the public float.