Comparable stake leader
Capital World Investors
SEC ownership of FIRSTENERGY CORP
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001031296.
Disclosed value leader
Capital World Investors
Comparable rows
50/50
Latest evidence
01 Jun 2026
- Public ticker
- FE on NYSE
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Capital World Investors
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Capital World Investors
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
01 Jun 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001031296
- Issuer location
- Akron, OH
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of FIRSTENERGY CORP (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
Capital World Investors
Disclosed value leader
Capital World Investors
Comparable rows
50/50
Latest evidence
01 Jun 2026
13F
13D/G
3/4/5
Lead comparable stake: 14%
13D/G row: Capital World Investors
Showing 1-8 of 50 holder rows.
Quick read
Capital World Investors leads the comparable SEC ownership view at 14%.
50 of 50 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 Capital World Investors's linked filing trail.
Comparable ownership
Top 5
Capital World Investors
14%
VANGUARD CAPITAL MANAGEMENT LLC
7%
GIC Private Ltd
5%
Blackstone Holdings III L.P.
5%
Brian X. Tierney
0.09%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Capital World Investors |
13F
13D/G
Company
|
14%
from 13D/G
|
$3,934,392,322
77,662,784 shares
|
— | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7%
|
$2,042,793,525
40,323,599 shares
|
$0 | 31 Mar 2026 |
| GIC Private Ltd |
13D/G
|
5%
|
$1,227,007,399
28,979,863 shares
|
$0 | 09 Apr 2025 |
| Blackstone Holdings III L.P. |
13D/G
Stephen A. Schwarzman
|
5%
|
$1,194,050,807
28,834,842 shares
|
$0 | 22 Aug 2025 |
| Brian X. Tierney |
3/4/5
Chairman, President and CEO, Director
|
0.09%
|
$26,583,772
524,749 shares
|
— | 01 Jun 2026 |
| John W. Somerhalder II |
3/4/5
Director
|
0.03%
|
$7,201,417
160,854 shares
|
— | 01 Apr 2026 |
| Allan Wade Smith |
3/4/5
President, FE Utilities
|
0.02%
|
$6,848,167
134,388 shares
|
— | 01 Mar 2026 |
| Hyun Park |
3/4/5
SVP & CLO
|
0.02%
|
$5,811,395
114,077 shares
|
— | 01 Mar 2026 |
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.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$1,989,622.
Buys
$0
Insiders: 0
Sells
$1,989,622
Insiders: 3
Net
-$1,989,622
Shares: -39,118
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 0
Shares: 39,118
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 39,118 | $0 | $1,989,622 | -$1,989,622 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 27 reporting-owner rows connected to FIRSTENERGY CORP. Open a relationship link for the CIK-to-CIK filing trail.
Rows
27
Largest Forms 3/4/5 holder
Brian X. Tierney
Net 12M change
-$1,989,621
Latest report
01 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Brian X. Tierney | Chairman, President and CEO, Director | $26,583,772 | Median | 01 Jun 2026 | ||
| Jon Taylor K. | SVP, CFO and Strategy | $8,242,016 | -$1,365,272 | -14% | Mixed | 10 Mar 2026 |
| John W. Somerhalder II | Director | $7,201,417 | Mixed | 01 Apr 2026 | ||
| Allan Wade Smith | President, FE Utilities | $6,848,167 | Mixed | 01 Mar 2026 | ||
| Hyun Park | Svp & Clo | $5,811,395 | Mixed | 01 Mar 2026 | ||
| Steven E. Strah | President and CEO | $3,568,239 | Mixed | 01 Mar 2022 | ||
| Toby L. Thomas | Chief Operating Officer | $3,101,564 | Mixed | 01 Mar 2026 | ||
| Michael J. Anderson | Director | $2,647,962 | Mixed | 01 Apr 2022 | ||
| Samuel Belcher | SVP, Operations | $2,640,423 | Mixed | 01 Mar 2023 | ||
| James F. Oneil | Director | $2,279,828 | -$402,041 | -15% | Mixed | 01 Apr 2026 |
| Christopher D. Pappas | Director | $2,119,438 | Mixed | 01 Apr 2022 | ||
| Christine Walker | SVP, CHRO & Corporate Services | $2,076,824 | Mixed | 01 Mar 2024 | ||
| Misheff Donald T. | Director | $1,767,722 | Mixed | 01 Apr 2022 | ||
| Luis A. Reyes | Director | $1,512,945 | Mixed | 01 Apr 2022 | ||
| Steven J. Demetriou | Director | $1,491,319 | Mixed | 01 Apr 2026 | ||
| Leslie M. Turner | Director | $1,438,823 | Mixed | 01 Apr 2026 | ||
| Thomas N. Mitchell | Director | $1,140,711 | Mixed | 01 Apr 2022 | ||
| Melvin D. Williams | Director | $689,560 | Mixed | 01 Apr 2026 | ||
| Julia L. Johnson | Director | $680,627 | Mixed | 01 Apr 2022 | ||
| Lisa Winston Hicks | Director | $648,172 | Mixed | 01 Apr 2026 |
Recent insider transactions for FIRSTENERGY CORP
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Brian X. Tierney | FE | Common Stock | Tax liability | -3.14% | -16,991 | 523,810 | 01 Jun 2026 | Direct | ||
| Melvin D. Williams | FE | Phantom Stock Units | Award | 4.8% | 837 | 18,290 | 01 Apr 2026 | Direct | ||
| Leslie M. Turner | FE | Phantom Stock Units | Award | 3.51% | 837 | 24,710 | 01 Apr 2026 | Direct | ||
| John W. Somerhalder II | FE | Common Stock | Award | 0.53% | 837 | 160,098 | 01 Apr 2026 | Direct | ||
| James F. Oneil | FE | Phantom Stock Units | Award | 1.86% | 837 | 45,815 | 01 Apr 2026 | Direct | ||
| Paul J. Kaleta | FE | Phantom Stock Units | Award | 4.8% | 837 | 18,290 | 01 Apr 2026 | Direct | ||
| Lisa Winston Hicks | FE | Phantom Stock Units | Award | 4.8% | 837 | 18,290 | 01 Apr 2026 | Direct | ||
| Steven J. Demetriou | FE | Phantom Stock Units | Award | 2.91% | 837 | 29,555 | 01 Apr 2026 | Direct | ||
| Croom Jana T. | FE | Phantom Stock Units | Award | 6.37% | 837 | 13,970 | 01 Apr 2026 | Direct | ||
| James F. Oneil | FE | Common Stock | Sale | -81% | $402,041 | $50.60 | -7,945 | 1,869 | 11 Mar 2026 | Direct |
| Jon Taylor K. | FE | Common Stock | Sale | -18.3% | $1,365,272 | $50.94 | -26,800 | 119,552 | 10 Mar 2026 | Direct |
| Jason Lisowski | FE | Common Stock | Sale | -100% | $69,788 | $50.84 | -1,373 | 0 | 06 Mar 2026 | By Savings Plan |
| Jason Lisowski | FE | Common Stock | Sale | -29.5% | $152,520 | $50.84 | -3,000 | 7,176 | 06 Mar 2026 | Direct |
| Jason Lisowski | FE | Common Stock | Options Exercise | 100.1% | 7,402 | 14,797 | 02 Mar 2026 | Direct | ||
| Toby L. Thomas | FE | Common Stock | Disposed to Issuer | -36.1% | -21,747 | 38,453 | 01 Mar 2026 | Direct | ||
| Toby L. Thomas | FE | Common Stock | Tax liability | -2.49% | -1,540 | 60,200 | 01 Mar 2026 | Direct | ||
| Toby L. Thomas | FE | Common Stock | Options Exercise | 64.3% | 24,156 | 61,740 | 01 Mar 2026 | Direct | ||
| Toby L. Thomas | FE | Common Stock | Award | 45.1% | 11,681 | 37,584 | 01 Mar 2026 | Direct | ||
| Toby L. Thomas | FE | Phantom 3/26D | Award | 13,658 | 13,658 | 01 Mar 2026 | Direct | |||
| Toby L. Thomas | FE | RSU | Options Exercise | -100% | -24,156 | 0 | 01 Mar 2026 | Direct | ||
| Brian X. Tierney | FE | Common Stock | Disposed to Issuer | -12.4% | -76,303 | 538,135 | 01 Mar 2026 | Direct | ||
| Brian X. Tierney | FE | Common Stock | Tax liability | -10% | -68,362 | 614,438 | 01 Mar 2026 | Direct | ||
| Brian X. Tierney | FE | Common Stock | Options Exercise | 50.7% | 229,581 | 682,800 | 01 Mar 2026 | Direct | ||
| Brian X. Tierney | FE | Common Stock | Award | 21.6% | 80,342 | 453,219 | 01 Mar 2026 | Direct | ||
| Brian X. Tierney | FE | RSU | Options Exercise | -100% | -229,581 | 0 | 01 Mar 2026 | Direct | ||
| Jon Taylor K. | FE | Common Stock | Disposed to Issuer | -23.4% | -44,585 | 146,352 | 01 Mar 2026 | Direct | ||
| Jon Taylor K. | FE | Common Stock | Tax liability | -8.26% | -17,191 | 190,937 | 01 Mar 2026 | Direct | ||
| Jon Taylor K. | FE | Common Stock | Options Exercise | 47.4% | 66,928 | 208,128 | 01 Mar 2026 | Direct | ||
| Jon Taylor K. | FE | Common Stock | Award | 19.7% | 23,210 | 141,200 | 01 Mar 2026 | Direct | ||
| Jon Taylor K. | FE | Phantom 3/26D | Award | 22,344 | 22,344 | 01 Mar 2026 | Direct | |||
| Jon Taylor K. | FE | RSU | Options Exercise | -100% | -66,928 | 0 | 01 Mar 2026 | Direct | ||
| Allan Wade Smith | FE | Common Stock | Disposed to Issuer | -7.83% | -11,358 | 133,644 | 01 Mar 2026 | Direct | ||
| Allan Wade Smith | FE | Common Stock | Tax liability | -6.57% | -10,194 | 145,003 | 01 Mar 2026 | Direct | ||
| Allan Wade Smith | FE | Common Stock | Options Exercise | 28.3% | 34,213 | 155,197 | 01 Mar 2026 | Direct | ||
| Allan Wade Smith | FE | Common Stock | Award | 14.5% | 15,321 | 120,983 | 01 Mar 2026 | Direct | ||
| Allan Wade Smith | FE | RSU | Options Exercise | -100% | -34,213 | 0 | 01 Mar 2026 | Direct | ||
| Hyun Park | FE | Common Stock | Disposed to Issuer | -10.3% | -12,885 | 112,627 | 01 Mar 2026 | Direct | ||
| Hyun Park | FE | Common Stock | Tax liability | -8.39% | -11,494 | 125,512 | 01 Mar 2026 | Direct | ||
| Hyun Park | FE | Common Stock | Options Exercise | 39.3% | 38,656 | 137,006 | 01 Mar 2026 | Direct | ||
| Hyun Park | FE | Common Stock | Award | 16.5% | 13,941 | 98,350 | 01 Mar 2026 | Direct | ||
| Hyun Park | FE | RSU | Options Exercise | -100% | -38,656 | 0 | 01 Mar 2026 | Direct | ||
| Jason Lisowski | FE | Common Stock | Disposed to Issuer | -19.3% | -2,438 | 10,176 | 01 Mar 2026 | Direct | ||
| Jason Lisowski | FE | Common Stock | Tax liability | -14.8% | -2,183 | 12,614 | 01 Mar 2026 | Direct | ||
| Jason Lisowski | FE | Common Stock | Award | 69.6% | 3,034 | 7,395 | 01 Mar 2026 | Direct | ||
| Jason Lisowski | FE | RSU | Options Exercise | -100% | -7,402 | 0 | 01 Mar 2026 | Direct | ||
| Brian X. Tierney | FE | RSU | Award | 227,593 | 227,593 | 11 Feb 2026 | Direct | |||
| Toby L. Thomas | FE | RSU | Award | 23,946 | 23,946 | 11 Feb 2026 | Direct | |||
| Jon Taylor K. | FE | RSU | Award | 66,347 | 66,347 | 11 Feb 2026 | Direct | |||
| Allan Wade Smith | FE | RSU | Award | 33,917 | 33,917 | 11 Feb 2026 | Direct | |||
| Hyun Park | FE | RSU | Award | 38,321 | 38,321 | 11 Feb 2026 | Direct |
* marks a reported price that did not pass the local price check.