What does CUSIP 025537101 represent in this 13F holders report?

CUSIP 025537101 is the security identifier for AEP - AMERICAN ELECTRIC POWER CO INC - Common Stock used to aggregate holder disclosures.

How many institutions held AEP - AMERICAN ELECTRIC POWER CO INC - Common Stock in Q1 2021?

1165 institutional investors reported AEP - AMERICAN ELECTRIC POWER CO INC - Common Stock for Q1 2021. Use the holders table for investor-level position and value details.

AMERICAN ELECTRIC POWER CO INC - Common Stock (AEP)

CUSIP: 025537101

Q1 2021 13F Holders as of 31 Mar 2021

Security type / class: Equity / Common Stock
Total 13F shares: 368,741,836
Total 13F value: $31,218,279,586
Share change: +1,566,732
Put/Call ratio: 66%
SEC-reported price per share: $84.70
Number of holders: 1,165
Value change: +$137,055,745
Number of buys: 525
Number of sells: 544
Shares outstanding: 543,635,353

Security key

025537101

Report period

Q1 2021

Institutions

1,165

Top holders

AEP full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 AMERICAN ELECTRIC POWER CO INC SEC filings AMERICAN ELECTRIC POWER CO INC company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 025537101

Newer quarter: Q3 2026

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of AEP - AMERICAN ELECTRIC POWER CO INC - Common Stock (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

VANGUARD GROUP INC

Disclosed value leader

VANGUARD GROUP INC

Comparable rows

0/15

Latest evidence

31 Dec 2020

13F Highest disclosed value: $3,679,699,000 15 rows are not safely comparable across share classes. Showing 1-6 of 15 holder rows.

Quick read

VANGUARD GROUP INC has the largest disclosed position value at $3.68B.

0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens VANGUARD GROUP INC's linked filing trail.

Disclosed position value Top 5

VANGUARD GROUP INC $3.68B

BlackRock Finance, Inc. $2.92B

PRICE T ROWE ASSOCIATES INC /MD/ $2.29B

STATE STREET CORP $2.02B

Capital World Investors $1.19B

Value bars compare disclosed positions; verify each figure against the linked filing evidence.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
VANGUARD GROUP INC	13F Company 13F	— denominator unverified	$3,679,699,000 44,189,966 shares	—	31 Dec 2020
BlackRock Finance, Inc.	13F Company 13F	— denominator unverified	$2,922,066,000 35,091,463 shares	—	31 Dec 2020
PRICE T ROWE ASSOCIATES INC /MD/	13F Company 13F	— denominator unverified	$2,290,142,000 27,502,600 shares	—	31 Dec 2020
STATE STREET CORP	13F Company 13F	— denominator unverified	$2,020,658,000 24,266,340 shares	—	31 Dec 2020
Capital World Investors	13F Company 13F	— denominator unverified	$1,188,982,000 14,278,635 shares	—	31 Dec 2020
WELLINGTON MANAGEMENT GROUP LLP	13F Company 13F	— denominator unverified	$922,909,000 11,083,335 shares	—	31 Dec 2020

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2021

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

1,165

368,741,836

Rows available

1,165

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2021 vs Q1 2021 Across Filers

Q1 2021 holders

1,165

Q1 2021 holders

1,165

Holder diff

Investor	Q1 2021 Shares	Q1 2021 Shares	Share Diff	Share Chg %	Q1 2021 value	Q1 2021 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend