American Electric Power Company, Inc.
American Electric Power Company, Inc. (AEP) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · AEP · as of Sep 30, 2025
Ownership Breakdown
1,772
Institutional Holders
▲ 77 vs Q2
$49.62B
Total Inst. Value
▲ $4.51B vs Q2
544.11M
Shares Outstanding
freeFloat 99.68%
441.25M
13F Shares Held
▲ 6.35M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
AEP largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC electric services | 51.67M | 9.67% | 9.67% | $5.81T | Nov 7, 2025 | ▼ 799.5K |
BLACKROCK, INC. electric services | 45.89M | 8.59% | 8.59% | $5.16T | Nov 12, 2025 | ▲ 1.02M |
STATE STREET CORP electric services | 28.92M | 5.41% | 5.41% | $3.25T | Nov 14, 2025 | ▲ 406.4K |
GQG PARTNERS LLC electric services | 18.91M | 3.54% | 3.54% | $2.13T | Nov 13, 2025 | ▼ 1.12M |
WELLINGTON MANAGEMENT GROUP LLP electric services | 16.60M | 3.11% | 3.11% | $1.87T | Nov 14, 2025 | ▼ 1.07M |
MORGAN STANLEY electric services | 14.39M | 2.69% | 2.69% | $1.62T | May 27, 2026 | ▲ 355.7K |
GEODE CAPITAL MANAGEMENT, LLC electric services | 13.74M | 2.57% | 2.57% | $1.54T | Nov 12, 2025 | ▲ 388.3K |
BARCLAYS PLC electric services | 10.57M | 1.98% | 1.98% | $1.19T | Mar 31, 2026 | ▲ 3.73M |
DODGE & COX electric services | 9.52M | 1.78% | 1.78% | $1.07T | Nov 13, 2025 | ▼ 48.9K |
INVESCO LTD. electric services | 7.38M | 1.38% | 1.38% | $829.71B | Nov 13, 2025 | ▼ 427.0K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
30
Increased
+17.64M shares0
New Positions
first time holders19
Decreased
−6.01M shares0
Sold Out
fully exitedNet shares change (top 50)
+11.63M
+17.64M / −6.01M
Net new holders
+11
0 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
AEP insider trading · insider activity
Source: SEC Form 4
0
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Dixon Kate Controller, CAO | May 1, 2026 | Tax Withhold | 636 | $136.91 | $87.1K | 17.8K | Form 4 ↗ |
Cannon Douglas A President AEP Transmission | May 1, 2026 | Tax Withhold | 1,770 | $136.91 | $242.3K | 25.7K | Form 4 ↗ |
Hall Greg B Executive Vice President | May 1, 2026 | Tax Withhold | 4,306 | $136.91 | $589.5K | 36.0K | Form 4 ↗ |
GARY HUNTER CLARK director | Mar 31, 2026 | Award | 0 | — | — | 3.7K | Form 4 ↗ |
Linginfelter Henry P director | Mar 31, 2026 | Award | 0 | — | — | 3.7K | Form 4 ↗ |
Sauvage Joseph G director | Mar 31, 2026 | Award | 0 | — | — | 1.5K | Form 4 ↗ |
Von Thaer Lewis director | Mar 31, 2026 | Award | 0 | — | — | 8.0K | Form 4 ↗ |
GARCIA ART A director | Mar 31, 2026 | Award | 0 | — | — | 2.5K | Form 4 ↗ |
LIN SANDRA BEACH director | Mar 31, 2026 | Award | 0 | — | — | 19.3K | Form 4 ↗ |
McCarthy Margaret M director | Mar 31, 2026 | Award | 0 | — | — | 3.3K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
American Electric Power Company, Inc. (AEP) is primarily owned by institutional investors, who hold approximately 81.1% of total shares outstanding. Company insiders own approximately 0.32%, while retail and public investors account for the remaining 18.58%.
The largest institutional shareholder of American Electric Power Company, Inc. is VANGUARD GROUP INC, holding approximately 51.67 million shares — equal to 9.67% of outstanding shares — as of September 30, 2025.
A total of 1,772 institutional investors currently hold AEP stock, with a combined institutional value of approximately $49.62 billion as of the most recent 13F filing period.
Frequently asked questions
AEP ownershipAmerican Electric Power Company, Inc. (AEP) is primarily owned by institutional investors, who hold approximately 81.1% of shares. The largest shareholder is VANGUARD GROUP INC with a 9.67% stake. Company insiders hold 0.32%. Data sourced from SEC Form 13F as of September 30, 2025.