Coorstek 401(k) and pension plans

Coorstek LLC, Golden, CO. EIN 46-4089941. Annual reports 2009–2024. Also filed as Coorstek Inc 401K Plan; Coorstek Inc 401(K) Plan; Coorstek Inc.; Coorstek, Inc.

Coorstek LLC has 2 active retirement plans on file. The largest is the Coorstek LLC Savings and Investment Plan, with 3,507 participants and $345 million in assets in 2024. Fidelity has been its recordkeeper since 2010.

Active plans: 2
Participants: 4,193
Plan assets: $385 million
401(k) recordkeeper: Fidelity
Plans on file: 2
Industry: Manufacturing

All 2 plans

Active plans first

Coorstek LLC Savings and Investment Plan

401(k)Active

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

Plan number: 002Employer EIN 46-4089941
Participants (2024): 3,507
Net assets (2024): $345 million
Recordkeeper: Fidelity2010–2024
Plan administrator: Coorstek LLC
14143 Denver West Parkway, Ste 400
Golden, CO 80401
(303) 271-7000As filed for 2024
In effect since: December 28, 1992

Earlier sponsors: Coorstek Inc 401K Plan (2009–2010); Coorstek Inc 401(K) Plan (2011–2013).

Earlier plan names: Coorstek Inc Savings and Investment Plan.

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	3,507	$345 million	Fidelity
2023	3,543	$320 million	Fidelity
2022	4,840	$293 million	Fidelity
2021	3,928	$360 million	Fidelity
2020	3,147	$306 million	Fidelity
2019	3,659	$286 million	Fidelity
2018	4,460	$259 million	not listed
2017	4,282	$271 million	Fidelity
2016	3,808	$227 million	Fidelity
2015	3,829	$208 million	Fidelity
2014	3,721	$198 million	Fidelity
2013	2,989	$171 million	Fidelity
2012	3,142	$143 million	Fidelity
2011	3,396	$114 million	Fidelity
2010	3,119	$102 million	Fidelity
2009	2,584	$90.1 million	not listed

Coorstek, Inc. Retirement Plan

Pension (defined benefit), frozenActive

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

Plan number: 001Employer EIN 84-0178380
Participants (2024): 686
Net assets (2024): $40.7 million
Plan administrator: Coorstek, Inc.
14143 Denver West Parkway Suite 400
Golden, CO 80401
(303) 271-7000As filed for 2024
In effect since: August 31, 1999

Year by year, 2009 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	686	$40.7 million	not listed
2023	702	$44.2 million	not listed
2022	731	$46.3 million	not listed
2021	1,001	$87.2 million	not listed
2020	1,033	$94.9 million	not listed
2019	1,264	$108 million	not listed
2018	2,136	$134 million	not listed
2017	2,196	$149 million	not listed
2016	2,275	$148 million	not listed
2015	2,316	$149 million	not listed
2014	2,368	$159 million	not listed
2013	2,404	$152 million	not listed
2012	3,216	$153 million	not listed
2011	3,301	$143 million	not listed
2010	3,361	$136 million	not listed
2009	3,413	$125 million	not listed

If you had money in one of these plans

Call Fidelity (fidelity.com), which runs the Coorstek LLC Savings and Investment 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 ((303) 271-7000). 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 2 plans

Coorstek LLC Savings and Investment Plan

Coorstek, Inc. Retirement Plan

If you had money in one of these plans

What these numbers are

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