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MASSACHUSETTS FINANCIAL SERVICES CO /MA/

Position in AEP — American Electric Power Co Inc

CIK 912938 Boston, MA

Position in AEP

as of Mar 31, 2026 · filed May 14, 2026
Position Value
$589,002,473
+$69,180,267 QoQ
Shares Held
4,493,458
-0.3% QoQ
Ownership
0.826%
of shares outstanding
% of Portfolio
0.21%
of 13F equity value
Holder Rank
not a current holder
Holding Since
Mar 2020
25 quarters on record
Voting authority Sole 87.76163035239229.ToString("F0")% Shared 11.260236548333156.ToString("F0")% None 0.9781330992745453.ToString("F0")%

Common Shares in AEP Over Time

Shares Held

Position Value (USD)

Position in Utilities - Regulated Electric

Utilities · as of Mar 31, 2026

MASSACHUSETTS FINANCIAL SERVICES CO /MA/ holds $13,723,744,433 across 27 Utilities - Regulated Electric names. AEP ranks #8 (4.3% of the industry book) .

# Ticker Company Shares Value (USD) Open
8 AEP
American Electric Power Co Inc
This page
4,493,458 $589,002,473

All Filings in AEP

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25 filing rows on record
Report Date Value (USD) Shares
2026-03-31 $589,002,473 4,493,458
2025-12-31 $519,822,206 4,508,041
2025-09-30 $521,118,335 4,632,163
2025-06-30 $497,040,175 4,790,287
2025-03-31 $529,037,696 4,841,564
2024-12-31 $451,978,000 4,900,553
2024-09-30 $522,729,863 5,094,833
2024-06-30 $453,087,164 5,163,975
2024-03-31 $452,351,747 5,253,795
2023-12-31 $490,127,774 6,034,570
2023-09-30 $467,705,095 6,217,829
2023-06-30 $551,833,579 6,553,843
2023-03-31 $749,624,205 8,238,534
2022-12-31 $840,811,016 8,855,303
2022-09-30 $758,556,212 8,774,508
2022-06-30 $948,730,221 9,888,787
2022-03-31 $1,073,309,792 10,757,841
2021-12-31 $922,747,191 10,371,442
2021-09-30 $809,799,641 9,975,359
2021-06-30 $851,636,635 10,067,817
2021-03-31 $875,052,466 10,331,198
2020-12-31 $866,911,475 10,410,850
2020-09-30 $916,265,626 11,210,885
2020-06-30 $656,030,512 8,237,450
2020-03-31 $539,205,000 6,741,748