Vistra Operations 401(k) and pension plans

Vistra Operations Company LLC, Irving, TX. EIN 36-4833461. Annual reports 2009–2024. Also filed as Sithe Energies, Inc.; Dynegy Inc.; Vistra Operation Company LLC; Electric Energy, Inc.

Vistra Operations Company LLC has 4 active retirement plans on file. The largest is the Vistra Thrift Plan, with 9,986 participants and $2.4 billion in assets in 2024. Fidelity has been its recordkeeper since 2009.

Active plans: 4
Participants: 13,968
Plan assets: $2.8 billion
401(k) recordkeeper: Fidelity
Plans on file: 4
Industry: Holding companies

All 4 plans

Active plans first

Vistra Thrift Plan

401(k)Active

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 001Employer EIN 36-4833461
Participants (2024): 9,986
Net assets (2024): $2.4 billion
Recordkeeper: Fidelity2009–2024
Plan administrator: Vistra Operations Company LLC
6555 Sierra Drive 2S-20K
Irving, TX 75039
(214) 812-4600As filed for 2024
In effect since: September 1, 1968

Plans merged into this one: Dynegy 401(k) Plan (2018); Energy Harbor 401(k) & Retirement Contribution Plan (2024).

Earlier sponsor: Energy Future Holdings Corp. (2009–2015).

Earlier plan names: Efh Thrift Plan; Vistra Energy Thrift Plan.

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	9,986	$2.4 billion	Fidelity
2023	7,829	$1.5 billion	Fidelity
2022	8,478	$1.4 billion	Fidelity
2021	8,441	$1.7 billion	Fidelity
2020	8,502	$1.6 billion	Fidelity
2019	8,637	$1.5 billion	Fidelity
2018	7,729	$1.3 billion	Fidelity
2017	5,642	$982 million	Fidelity
2016	6,153	$921 million	Fidelity
2015	6,571	$931 million	Fidelity
2014	11,274	$1.6 billion	Fidelity
2013	10,822	$1.6 billion	Fidelity
2012	10,939	$1.4 billion	Fidelity
2011	14,829	$1.3 billion	Fidelity
2010	17,562	$1.3 billion	Fidelity
2009	21,029	$1.2 billion	Fidelity

Dynegy Pension Plan

Cash balance pension, frozenActive

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 003Employer EIN 36-4833461
Participants (2024): 2,279
Net assets (2024): $206 million
Last listed administrator: Conduent2018–2019
Plan administrator: Vistra Operations Company LLC
6555 Sierra Drive 2S-20K
Irving, TX 75039
(214) 812-4600As filed for 2024
In effect since: January 1, 2000

Plans merged into this one: Dynegy Northeast Generation, Inc. Retirement Income Plan (2015); Dynegy Inc. Retirement Plan (2017).

Earlier sponsors: Sithe Energies, Inc. (2009–2016); Dynegy Inc. (2017); Vistra Operation Company LLC (2018).

Earlier plan names: Sithe Stable Pension Account Plan; Dynegy Inc. Frozen Retirement Benefit Plan.

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	2,279	$206 million	not listed
2023	2,384	$208 million	not listed
2022	2,478	$228 million	not listed
2021	2,488	$306 million	not listed
2020	2,606	$318 million	not listed
2019	3,029	$361 million	Conduent
2018	3,463	$322 million	Conduent
2017	3,687	$392 million	not listed
2016	392	$93.3 million	not listed
2015	399	$91.3 million	not listed
2014	74	$1.5 million	not listed
2013	78	$1.4 million	not listed
2012	80	$1.3 million	not listed
2011	24	$1.2 million	not listed
2010	86	$1.3 million	not listed
2009	95	$1.2 million	not listed

Energy Harbor Pension Plan for Collectively Bargained Employees

Cash balance pensionActive

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 004Employer EIN 36-4833461
Participants (2024): 879
Net assets (2024): $18.2 million
Last listed administrator: Conduent2019
Plan administrator: Vistra Operations Company LLC
168 E. Market Street
Akron, OH 44308
(888) 254-4769As filed for 2024
In effect since: February 27, 2020

Earlier sponsors: Electric Energy, Inc. (2009–2017); Energy Harbor Corp (2020–2023).

Earlier plan names: Revised Retirement Plan for Employees of Electric Energy, Inc..

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	879	$18.2 million	not listed
2023	889	$18.9 million	not listed
2022	900	$17.7 million	not listed
2021	908	$19.1 million	not listed
2020	922	$19.8 million	not listed
2019	338	$56.0 million	Conduent
2018	494	$57.2 million	not listed
2017	494	$67.9 million	not listed
2016	509	$64.8 million	not listed
2015	514	$63.6 million	not listed
2014	520	$72.6 million	not listed
2013	551	$76.1 million	not listed
2012	528	$73.9 million	not listed
2011	537	$64.6 million	not listed
2010	545	$63.0 million	not listed
2009	524	$54.8 million	not listed

Vistra Retirement Plan

Cash balance pensionActive

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 002Employer EIN 36-4833461
Participants (2024): 824
Net assets (2024): $238 million
Last listed administrator: Fid MGMT TrustEarlier: Fid. Inv. Inst. Ops. (2012), Fidelity (2011)
Plan administrator: Vistra Operations Company LLC
6555 Sierra Drive 2S-20K
Irving, TX 75039
(214) 812-4600As filed for 2024
In effect since: January 1, 1947

Earlier sponsor: Energy Future Holdings Corp. (2009–2015).

Earlier plan names: Efh Retirement Plan; Vistra Energy Retirement Plan.

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	824	$238 million	not listed
2023	838	$254 million	not listed
2022	876	$251 million	not listed
2021	898	$333 million	not listed
2020	923	$336 million	not listed
2019	974	$323 million	not listed
2018	997	$281 million	not listed
2017	1,076	$319 million	not listed
2016	1,099	$293 million	not listed
2015	1,121	$280 million	Fid MGMT Trust
2014	1,144	$229 million	Fid MGMT Trust
2013	1,158	$210 million	Fid MGMT Trust
2012	1,174	$142 million	Fid. Inv. Inst. Ops.
2011	n/a	$2.6 billion	Fidelity
2010	n/a	$2.4 billion	not listed
2009	n/a	$2.1 billion	not listed

If you had money in one of these plans

Call Fidelity (fidelity.com), which runs the Vistra Thrift Plan. With your Social Security number and the plan name, it can tell you whether you still have a balance and, if not, where it went.
Or call the plan administrator listed on the plan below ((214) 812-4600). That number was filed for 2024; ask for the benefits or retirement plan office.
Still stuck? The Department of Labor's benefits advisers help for free: askebsa.dol.gov or 1-866-444-3272. Never pay anyone to find your own money.

What these numbers are

They come from the Form 5500 annual reports each plan files with the Department of Labor, as the plan filed them. A plan year is usually a calendar year.
Participants counts everyone in the plan at year end: current employees, former employees who still have a balance or a pension coming, and retirees or beneficiaries being paid.
The recordkeeper is the service provider whose Schedule C entry says it keeps the plan's records. Small plans do not file Schedule C, so some plans show none.
We cannot see anyone's account. Only the plan or its recordkeeper can tell you your balance.

Sources: U.S. Department of Labor, Form 5500 datasets and PBGC trusteed plans. How we read them.

All 4 plans

Vistra Thrift Plan

Dynegy Pension Plan

Energy Harbor Pension Plan for Collectively Bargained Employees

Vistra Retirement Plan

If you had money in one of these plans

What these numbers are

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