Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in AEP held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 47.8M | $6.27B | +3.3% | 8.785% | 0.11% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 35.1M | $4.61B | — | 6.458% | 0.12% |
| 3 | STATE STREET CORP | 30.3M | $3.97B | -0.5% | 5.567% | 0.14% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | 15.6M | $2.05B | — | 2.869% | 0.11% |
| 5 | GQG Partners LLC | 15.0M | $1.97B | -11.1% | 2.762% | 3.12% |
| 6 | MORGAN STANLEY | 14.5M | $1.90B | -1.2% | 2.662% | 0.11% |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | 14.2M | $1.86B | +2.9% | 2.614% | 0.12% |
| 8 | WELLINGTON MANAGEMENT GROUP LLP | 13.2M | $1.72B | -10.1% | 2.418% | 0.32% |
| 9 | BARCLAYS PLC | 10.4M | $1.36B | -2.4% | 1.905% | 0.56% |
| 10 | AMERIPRISE FINANCIAL INC | 9.1M | $1.19B | +12.6% | 1.667% | 0.28% |
| 11 | DODGE & COX | 8.7M | $1.15B | -6.5% | 1.606% | 0.63% |
| 12 | Kentucky Farm Bureau Mutual Insurance Co | 12K | $1.13B | — | 0.002% | 0.03% |
| 13 | Invesco Ltd. | 7.7M | $1.01B | +0.2% | 1.415% | 0.15% |
| 14 | FMR LLC | 6.1M | $796.9M | +23.9% | 1.117% | 0.04% |
| 15 | ROYAL BANK OF CANADA | 6.0M | $786.3M | -6.9% | 1.102% | 0.14% |
| 16 | Nuveen, LLC | 6.0M | $785.7M | +3.8% | 1.102% | 0.21% |
| 17 | BANK OF AMERICA CORP /DE/ | 5.2M | $676.7M | -12.6% | 0.949% | 0.05% |
| 18 | GOLDMAN SACHS GROUP INC | 5.2M | $675.2M | +13.0% | 0.947% | 0.08% |
| 19 | Legal & General Group Plc | 4.8M | $626.0M | -3.9% | 0.878% | 0.14% |
| 20 | NORTHERN TRUST CORP | 4.7M | $612.5M | -0.0% | 0.859% | 0.08% |
| 21 | ALLIANCEBERNSTEIN L.P. | 5.3M | $609.2M | -3.5% | 0.971% | 0.20% |
| 22 | Allspring Global Investments Holdings, LLC | 4.5M | $591.6M | -2.7% | 0.826% | 0.99% |
| 23 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 4.5M | $591.4M | -0.3% | 0.826% | 0.20% |
| 24 | MILLENNIUM MANAGEMENT LLC | 4.4M | $572.4M | — | 0.803% | 0.38% |
| 25 | WELLS FARGO & COMPANY/MN | 3.9M | $516.5M | -5.4% | 0.724% | 0.11% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in AEP — a direct measure of their conviction.
Filings activity in AEP during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 1,888 | +4.4% | 82.55% | +11.47 pp | $58.05B | +16% |
| Q4 2025 | 1,808 | +7.9% | 71.08% | 3.25 pp | $49.98B | 4.4% |
| Q3 2025 | 1,675 | +4.2% | 74.33% | +12.24 pp | $52.27B | +20% |
| Q2 2025 | 1,608 | 0.9% | 62.09% | 2.63 pp | $43.66B | 4.1% |
| Q1 2025 | 1,622 | +10% | 64.72% | +13.60 pp | $45.51B | +27% |
| Q4 2024 | 1,468 | +1.1% | 51.12% | 6.31 pp | $35.95B | 11% |
| Q3 2024 | 1,452 | +4.8% | 57.43% | 5.12 pp | $40.38B | 8.2% |
| Q2 2024 | 1,385 | — | 62.55% | — | $43.98B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AEP stock.
Based on Q1 2026 13F filings, institutional ownership of American Electric Power Company, Inc. stands at 82.5%, held across 1,888 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of AEP, with approximately 47,797,729 shares worth $6.27B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of AEP, including MILLENNIUM MANAGEMENT LLC.
Our composite Smart Money Score for AEP is 66 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
255 institutions opened new positions in AEP during Q1 2026, while 175 fully exited. 1,401 added to existing positions and 225 trimmed.
AEP institutional ownership rose by 11.47 percentage points quarter-over-quarter, with a net change of +80 holders.
The top 10 institutions account for 46.3% of all reported 13F value in AEP, and the top 25 account for 65.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
American Electric Power Company, Inc. (AEP) Institutional Ownership