Alcoa Ownership | Who Owns Alcoa?

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Alcoa Ownership Summary

Alcoa is owned by 76.31% institutional investors, 0.55% insiders, and 23.15% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 11.12% of AA shares. iShares Core S&P Mid-Cap ETF is the top mutual fund, with 3.43% of its assets in Alcoa shares.

AA Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	Alcoa	76.31%	0.55%	23.15%
Sector	Basic Materials Stocks	38.12%	12.67%	49.21%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Blackrock funding, inc. /de	29.32M	11.12%	$1.53B
Vanguard group	25.13M	9.63%	$1.34B
Blackrock	17.17M	9.57%	$682.84M
Fmr	17.00M	6.45%	$886.18M
Vanguard capital management	11.93M	4.52%	$621.82M
Eagle capital management	11.88M	4.51%	$619.41M
State street	10.88M	4.13%	$567.07M
Dimensional fund advisors lp	5.85M	2.22%	$304.84M
Geode capital management	5.83M	2.21%	$304.06M
Aqr capital management	4.09M	1.55%	$213.08M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Mountaineer partners management	208.16K	8.22%	$10.85M
Impala asset management	130.00K	4.02%	$8.62M
Drummond knight asset management pty	385.71K	3.69%	$20.11M
Diameter capital partners lp	650.00K	3.05%	$25.86M
Lesa sroufe	79.93K	2.97%	$4.17M
L1 capital pty	1.44M	2.52%	$74.85M
Qsm asset management	87.30K	2.39%	$4.61M
Eagle capital management	11.88M	1.89%	$619.41M
Global alpha capital management	558.62K	1.75%	$29.13M
Maple rock capital partners	1.58M	1.61%	$82.26M

Top Buyers

Holder	Shares	% Assets	Change
Fmr	17.00M	0.04%	4.14M
Sixth street partners management company	2.08M	0.01%	2.08M
Millennium management	2.33M	0.04%	2.05M
Norges bank	1.98M	0.01%	1.98M
L1 capital pty	1.44M	2.52%	1.44M

Top Sellers

Holder	Shares	% Assets	Change
Blackrock	17.17M	0.02%	-5.11M
Dimensional fund advisors lp	5.85M	0.06%	-2.78M
Slate path capital lp	-	-	-2.74M
Menora mivtachim	-	-	-2.56M
Eagle capital management	11.88M	1.89%	-2.22M

New Positions

Holder	Shares	% Assets	Change	Value
Sixth street partners management company	2.08M	0.01%	2.08M	$108.51M
Norges bank	1.98M	0.01%	1.98M	$103.40M
Kgh	717.00K	1.41%	717.00K	$27.09M
Diameter capital partners lp	650.00K	3.05%	650.00K	$25.86M
Voloridge investment management	642.68K	0.14%	642.68K	$33.51M

Sold Out

Holder	Change
Mendota financial group	-2.00
Elyxium wealth	-2.00
Flaharty asset management	-3.00
Fortis advisors	-3.00
Harbor investment advisory	-4.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	798	14.82%	199,106,928	-0.31%	76	1.30%	477	19.55%	182	15.92%
Dec 31, 2025	475	-16.96%	130,866,915	-29.15%	50	0.99%	278	-0.71%	97	-33.56%
Sep 30, 2025	545	7.07%	224,048,891	28.53%	86	1.91%	266	5.98%	140	-3.45%
Jun 30, 2025	511	-8.75%	185,403,010	8.38%	71	1.64%	250	-5.30%	146	-3.31%
Mar 31, 2025	22	-96.22%	6,075,923	-96.57%	2	0.05%	5	-98.30%	9	-93.62%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
iShares Core S&P Mid-Cap ETF	9.06M	3.43%	279.00
Vanguard Morn Total Stk Mkt Idx Investor	8.38M	3.18%	-17.91K
Vanguard Total Stock Mkt Idx Inv	8.38M	3.18%	-17.91K
Vanguard US Total Market Shares ETF	8.22M	3.18%	2.56M
Vanguard Small Cap Index	6.05M	2.29%	-19.80K
Vanguard Small Cap Value Index Inv	3.84M	1.46%	-69.51K
Vanguard Morn Small Cap Value Index	3.84M	1.46%	-69.51K
Fidelity OTC	3.59M	1.36%	463.80K
SPDR® S&P Metals and Mining ETF	3.04M	1.18%	-10.92K
Vanguard Institutional Extnd Mkt Idx Tr	3.03M	1.15%	99.65K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Jul 22, 2026	Reed Matthew T	EVP, Chief Operations Officer	Sell	$215.37K
Oct 22, 2024	Bacchi Renato	EVP & Chief Commercial Officer	Sell	$1.01M
Mar 13, 2024	Jones Tammi A	EVP & CHRO	Sell	$814.58K
Mar 13, 2024	Jones Tammi A	EVP & CHRO	Sell	$44.16K
Feb 08, 2023	Harvey Roy Christopher	President, CEO & Director	Sell	$1.54M

Insider Transactions Trends

Date	Buy	Sell
2026 Q3	-	1
2026 Q2	-	-
2026 Q1	-	-
2025 Q3	-	-
2025 Q2	-	-

AA Ownership FAQ

Who owns the most shares of Alcoa?

Alcoa’s largest shareholders are Blackrock funding, inc. /de (29.32M shares, 11.12%), Vanguard group (25.13M shares, 9.63%), and Blackrock (17.17M shares, 9.57%). Together, they hold 30.32% of Alcoa’s total shares outstanding.

Does Blackrock own Alcoa?

Yes, BlackRock owns 9.57% of Alcoa, totaling 17.17M shares as of Jun 2024. This represents 0.02% of BlackRock's total assets, with a market value of 682.84M$. In the last quarter, BlackRock decreased its holdings by -5.115M shares, a -22.96% change.

Who is Alcoa’s biggest shareholder by percentage of total assets invested?

Mountaineer partners management is Alcoa’s biggest shareholder by percentage of total assets invested, with 8.22% of its assets in 208.16K Alcoa shares, valued at 10.85M$.

Who is the top mutual fund holder of Alcoa shares?

iShares Core S&P Mid-Cap ETF is the top mutual fund holder of Alcoa shares, with 3.43% of its total shares outstanding invested in 9.06M Alcoa shares.

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