GEN on NYSE

GenOn Energy

Defunct American corporation

GenOn Energy, Inc., based in Houston, Texas, United States, is an energy company that provides electricity to wholesale customers in the United States. The company is one of the largest independent power producers in the nation with more than 7,000 megawatts of power generation capacity across the United States using natural gas, fuel oil and coal.3 From Wikipedia, CC BY-SA 4.0

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Last updated Oct 18, 2026.

Overview

$5.0BRevenue, fiscal 20264
$973.0MNet income, fiscal 20264
2001Founded1

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  • TickerGEN on NYSE1
  • Industryelectricity supply company1
  • HeadquartersReliant Energy Plaza1
  • Legal formDelaware corporation1
ReliantEnergyPlazaHoustonTX
Photo: WhisperToMe, Public domain, via Wikimedia Commons6

GenOn Energy, Inc., based in Houston, Texas, United States, is an energy company that provides electricity to wholesale customers in the United States. The company is one of the largest independent power producers in the nation with more than 7,000 megawatts of power generation capacity across the United States using natural gas, fuel oil and coal. GenOn Energy was headquartered in the Reliant Energy Plaza in Downtown Houston. The company, formerly known as RRI Energy, acquired Mirant on December 3, 2010. The corporate names and logos of both RRI Energy and Mirant were retired.3

Financials

From the company’s reports to the SEC. Every number links to the filing it came from.

Key numbers, fiscal 2026

78.5%Gross margin4
42.4%Operating margin4
19.5%Net margin4
27.1%Revenue growth, 20264
37.3%Return on equity4
3.07×Debt to equity4
$1.5BFree cash flow4

What sells

Revenue by product, business segment and region, as the company reports it to the SEC.

Products and services

Subscription And Service Revenue brought in 100% of the revenue GenOn Energy broke down this way in fiscal 2026.

  1. Subscription And Service Revenue$5.0B4100%up 27% from 2025
  2. Net Interest Income On Notes Receivable$18.0M40%
Products and services by year
Products and services202420252026
Subscription And Service Revenue$3.8B$3.9B$5.0B
Net Interest Income On Notes Receivable$0$0$18.0M

Business segments

Cyber Safety Platform brought in 67% of the revenue GenOn Energy broke down this way in fiscal 2026.

  1. Cyber Safety Platform$3.3B467%up 5% from 2025
  2. Trust-Based Solutions$1.7B433%up 119% from 2025
Business segments by year
Business segments202420252026
Cyber Safety Platform$3.1B$3.2B$3.3B
Trust-Based Solutions$743.0M$759.0M$1.7B

Regions

Americas brought in 43% of the revenue GenOn Energy broke down this way in fiscal 2026.

  1. Americas$3.5B443%up 37% from 2025
  2. United States$3.3B440%up 40% from 2025
  3. EMEA$1.1B413%up 11% from 2025
  4. Asia Pacific$406.0M45%up 3% from 2025
Regions by year
Regions202420252026
Americas$2.5B$2.6B$3.5B
United States$2.3B$2.4B$3.3B
EMEA$917.0M$953.0M$1.1B
Asia Pacific$399.0M$395.0M$406.0M

Where the money goes

Where each dollar of revenue went, fiscal 2026

  • Cost of revenue22¢$1.1B
  • Research and development8¢$409.0M
  • Other costs40¢$2.0B
  • Income tax11¢$538.0M
  • Profit19¢$973.0M

Out of $5.0B in revenue.4

Where each dollar of operating cash went, fiscal 2026

  • Capital spending1¢$22.0M
  • Dividends paid20¢$312.0M
  • Share buybacks41¢$634.0M
  • Kept or used elsewhere37¢$577.0M

Out of $1.5B of cash from operations.4

Financial statements

Revenue78910114$5.0B in 2026+104% since 2019
0$2.0B$4.0B$6.0B2019: $2.5B$2.5B20192020: $2.5B$2.5B2020+1%2021: $2.6B$2.6B2021+2%2022: $2.8B$2.8B2022+10%2023: $3.3B$3.3B2023+19%2024: $3.8B$3.8B2024+15%2025: $3.9B$3.9B2025+4%2026: $5.0B$5.0B2026+27%
Gross profit78910114$3.9B in 2026+96% since 2019
0$1.0B$2.0B$3.0B$4.0B2019: $2.0B$2.0B20192020: $2.1B$2.1B2020+5%2021: $2.2B$2.2B2021+4%2022: $2.4B$2.4B2022+9%2023: $2.7B$2.7B2023+14%2024: $3.1B$3.1B2024+12%2025: $3.2B$3.2B2025+3%2026: $3.9B$3.9B2026+24%
Operating income78910114$2.1B in 2026+1242% since 2019
0$1.0B$2.0B$3.0B2019: $158.0M$158.0M20192020: $355.0M$355.0M2020+125%2021: $896.0M$896.0M2021+152%2022: $1.0B$1.0B2022+12%2023: $1.2B$1.2B2023+20%2024: $1.1B$1.1B2024−8%2025: $1.6B$1.6B2025+45%2026: $2.1B$2.1B2026+32%
Net income78910114$973.0M in 2026+3039% since 2019
0$1.0B$2.0B$3.0B$4.0B2019: $31.0M$31.0M20192020: $3.9B$3.9B2020+12439%2021: $554.0M$554.0M2021−86%2022: $836.0M$836.0M2022+51%2023: $1.3B$1.3B2023+60%2024: $607.0M$607.0M2024−54%2025: $643.0M$643.0M2025+6%2026: $973.0M$973.0M2026+51%

Every line of the income statement as filed: the last 3 fiscal years, latest first.4

Period ending2026-03-312025-03-312024-03-31
Net revenues$5.0B$3.9B$3.8B
Cost of revenues$1.1B$776.0M$731.0M
Gross profit$3.9B$3.2B$3.1B
Sales and marketing$1.2B$745.0M$733.0M
Research and development$409.0M$329.0M$332.0M
General and administrative-$87.0M$291.0M$604.0M
Amortization of intangible assets$218.0M$174.0M$233.0M
Restructuring and other costs$35.0M$7.0M$57.0M
Impairment of intangible assets$0$3.0M$0
Total operating expenses$1.8B$1.5B$2.0B
Operating income (loss)$2.1B$1.6B$1.1B
Interest expense-$569.0M-$578.0M-$669.0M
Other income (expense), net-$40.0M-$3.0M$6.0M
Income (loss) before income taxes$1.5B$1.0B$447.0M
Income tax expense (benefit)$538.0M$386.0M-$160.0M
Net income (loss)$973.0M$643.0M$607.0M
Net income (loss) per share - basic (in dollars per share)$1.59$1.04$0.95
Net income (loss) per share - diluted (in dollars per share)$1.57$1.03$0.95
Basic (in shares)612.0M shares617.0M shares637.0M shares
Diluted (in shares)619.0M shares624.0M shares642.0M shares

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The story

The company was originally known as Houston Industries (NYSE: HOU), and Houston Lighting & Power was its subsidiary. In August 1996 HI closed on a merger with NorAm Energy Corp, a natural gas utility. The combined company, as of 1997, had assets of $18 billion and annual revenues of about $9 billion. By November 1997 there was a published report stating that the company wished to acquire Central & South West Corp. HI declined to comment.

In 1999, Houston Industries changed its name to Reliant Energy and its new NYSE symbol was REI. It was scheduled to begin trading under REI on February 8, 1999.

In 2002, Texas deregulated the electricity market and Reliant then competed against other energy companies like Direct Energy and TXU Energy. At this time, Reliant Energy also separated into two publicly traded companies: Reliant Resources, Inc. and CenterPoint Energy, Inc. (NYSE: CNP).

When the state of Texas deregulated the electricity market, the former HL&P was split into several companies. In 2003 HL&P was split into Reliant Energy, Texas Genco, and CenterPoint Energy.

CenterPoint Energy was created when Reliant Energy merged with an indirect subsidiary of CenterPoint Energy, Inc. As a result of the merger, Reliant Energy shareholders received one share of CenterPoint common stock in exchange for each share of RRI common stock they held before the merger. A regulated utility, CenterPoint Energy became one of the largest U.S. energy delivery companies, serving 4.7 million metered customers. In late 2002, CenterPoint distributed the stock of Reliant Resources, Inc. to CenterPoint shareholders. This spin-off created Reliant Resources with a strategy to provide competitive wholesale and retail energy service under the Reliant Energy brand. Its businesses included power generation and retail energy services in Texas newly deregulated electricity market. On the wholesale side, Reliant owned, had an interest in, or leased 37 operating power generation facilities serving five regions of the United States.

In January 2007, the Texas electricity market became fully deregulated, and Reliant began to offer an array of products, flexible service options, and pricing arrangements to a variety of customers. At this time, Reliant was the second largest mass market electricity provider in the state of Texas, with an annual revenue of $10.9 billion and more than 3,500 employees. In February 2007, Reliant Energy announced plans for Mark Jacobs, current chief financial operator, to succeed Joel Staff as chief executive officer and for Brian Landrum to become chief operating officer.

On May 1, 2009, Reliant Energy's retail electricity business was purchased by NRG Energy. The retail group retained the name Reliant Energy and the surviving wholesale business was renamed RRI Energy, Inc.

On June 15, 2017, unable to meet debt obligations, GenOn Energy and GenOn Americas Generation file for Chapter 11 bankruptcy.

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Merger to create GenOn Energy

On April 11, 2010, RRI Energy and Atlanta-based Mirant Corp. announced an agreement to merge in a $1.6 billion all-stock deal, which created one of the largest independent power plant operators in the country. The new company, named GenOn Energy, would be based in Houston but led by Mirant's Chairman and CEO Edward Muller until 2013. At that time, Muller would retire and Mark Jacobs, the president and COO of RRI Energy, would become CEO of GenOn. The new company had a market capitalization of about $3 billion, owning or operating 47 plants in 12 states capable of generating more than 24,650 megawatts of power. The merger was completed on December 3, 2010.

From Wikipedia’s article on GenOn Energy, shared under CC BY-SA 4.0.5

Leadership

Who has led GenOn Energy, and when. Pick a name to see everywhere that person has worked.

Board members and other officers (25)

Timeline

  1. Dec 7, 2010New chief executive Edward R. Muller becomes CEO16
  2. May 18, 2007New chief executive Mark M. Jacobs becomes CEO18
  3. Jan 30, 2007New chief executive Joel Staff V. becomes CEO17
  4. 2001Founded Founded1

Held by these funds

The largest holders among investment managers' 13F reports for the quarter ending Jun 30, 2026, the top 25 of 100. Change is in shares since the quarter before.

FundSharesValueShare of the fundChange
BlackRock, Inc.53,447,940$1.3B0.0%+494,203
Fmr LLC46,348,313$1.2B0.1%+1,550,335
Vanguard Capital Management LLC35,673,604$887.9M0.0%+87,124
State Street Corp31,242,349$777.6M0.0%+1,742,614
Vanguard Portfolio Management LLC30,421,154$757.2M0.0%−934,529
Ameriprise Financial Inc27,725,433$690.3M0.1%+7,775,848
Boston Partners20,667,093$514.5M0.5%+5,782,014
Geode Capital Management, LLC15,794,204$391.8M0.0%+232,077
First Trust Advisors LP15,479,704$385.3M0.2%+670,761
Arrowstreet Capital, Limited Partnership13,452,254$334.8M0.1%+357,868
Invesco Ltd.13,084,850$325.7M0.0%−450,616
PeakShares LLC9,272$230.8M0.2%+600
Legal & General Group Plc9,046,545$225.2M0.0%+286,668
Morgan Stanley8,342,317$207.6M0.0%+743,746
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC8,155,355$203.0M0.0%−44,597
Lyrical Asset Management LP7,983,428$198.7M2.5%+16,181
Dimensional Fund Advisors LP7,037,704$175.2M0.0%+929,074
Norges Bank6,398,371$159.3M0.0%New
Northern Trust Corp6,216,023$154.7M0.0%+339,543
Deutsche Bank Ag\5,891,498$146.6M0.0%+494,674
Nuveen, LLC5,650,237$140.6M0.0%−1,656,258
Neuberger Berman Group LLC5,079,239$126.4M0.1%−270,162
Gotham Asset Management, LLC4,458,996$111.0M0.3%+2,995,101
Victory Capital Management Inc4,415,924$109.9M0.1%+3,813,903
Bank of New York Mellon Corp4,356,008$108.4M0.0%−545,870

13F reports cover disclosed long positions in U.S. stocks only.

Members of Congress who traded it

8 trades disclosed by members of Congress. “Vs S&P since” is the stock’s change since the trade minus the S&P 500’s.

DateMemberTradeAmountVs S&P sinceFiling
Apr 14, 2026Gilbert Ray Cisneros, Jr.Democratic, HouseBuy$1,001 - $15,000+20.1%Report
Mar 27, 2026Alan ArmstrongRepublican, SenateBuy$1,001 - $15,000+13.6%Report
Oct 22, 2025Julie JohnsonDemocratic, HouseSale$1,001 - $15,000+24.4%Report
Oct 21, 2025Julie JohnsonDemocratic, HouseBuy$1,001 - $15,000−24.3%Report
Oct 21, 2025Julie JohnsonDemocratic, HouseSale$1,001 - $15,000+24.3%Report
Sep 23, 2025Val T. HoyleDemocratic, HouseSale$1,001 - $15,000+30.6%Report
Apr 7, 2025Jefferson ShreveRepublican, HouseSale$15,001 - $50,000+48.3%Report
Oct 29, 2024Val T. HoyleDemocratic, HouseBuy$1,001 - $15,000−41.1%Report

Members report amounts as ranges, not exact figures. Returns are price-only (no dividends).

Sources

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