Mosaic 401(k) and pension plans

The Mosaic Company, Tampa, FL. EIN 20-1026454. Annual reports 2009–2024. Also filed as Mos Holdings, Inc.; Mos Holdings Inc.

The Mosaic Company has 2 active retirement plans on file. The largest is the Mosaic Investment Plan, with 3,036 participants and $853 million in assets in 2024. Fidelity has been its recordkeeper since 2018.

Active plans
2
Participants
5,186
Plan assets
$1.2 billion
401(k) recordkeeper
Fidelity
Plans on file
4
Industry
Manufacturing

All 4 plans

Active plans first

Mosaic Investment Plan

401(k)Active

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

Plan number
004Employer EIN 20-1026454
Participants (2024)
3,036
Net assets (2024)
$853 million
Recordkeeper
FidelityEarlier: Vanguard (2009–2017)
Plan administrator
The Mosaic Company
101 East Kennedy BLVD, Suite 2500
Tampa, FL 33602
(813) 775-4200As filed for 2024
In effect since
March 1, 1988

Plans merged into this one: Mosaic Combined U.S. Defined Benefit Pension Plan (2023).

Earlier sponsor: Mos Holdings Inc. (2010–2013).

Year by year, 2009 to 2024
Plan yearParticipantsNet assetsRecordkeeper
20243,036$853 millionFidelity
20233,021$791 millionFidelity
20222,864$709 millionFidelity
20212,763$865 millionFidelity
20202,811$786 millionFidelity
20192,847$740 millionFidelity
20182,961$658 millionFidelity
20173,506$767 millionVanguard
20163,557$694 millionVanguard
20153,608$656 millionVanguard
20143,548$672 millionVanguard
20132,874$563 millionVanguard
20122,781$489 millionVanguard
20112,622$434 millionVanguard
20102,471$459 millionVanguard
20092,450$392 millionVanguard

Mosaic Union Savings Plan

401(k)Active

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

Plan number
019Employer EIN 20-1026454
Participants (2024)
2,150
Net assets (2024)
$297 million
Recordkeeper
FidelityEarlier: Vanguard (2009–2018)
Plan administrator
The Mosaic Company
101 East Kennedy BLVD, Suite 2500
Tampa, FL 33602
(813) 775-4200As filed for 2024
In effect since
July 1, 1983

Earlier sponsor: Mos Holdings Inc. (2010–2013).

Year by year, 2009 to 2024
Plan yearParticipantsNet assetsRecordkeeper
20242,150$297 millionFidelity
20232,149$270 millionFidelity
20222,135$255 millionFidelity
20212,130$266 millionFidelity
20202,233$244 millionFidelity
20192,263$239 millionFidelity
20182,334$203 millionVanguard
20172,490$216 millionVanguard
20162,451$188 millionVanguard
20152,597$175 millionVanguard
20142,632$180 millionVanguard
20132,794$171 millionVanguard
20122,749$147 millionVanguard
20112,718$126 millionVanguard
20102,756$124 millionVanguard
20092,763$102 millionVanguard

Mosaic Combined U.S. Defined Benefit Pension Plan

Pension (defined benefit), frozenMergedUnion (multiemployer)

Merged. In 2023 its assets moved to the Mosaic Investment Plan, sponsored by The Mosaic Company (EIN 20-1026454, plan 004). Accounts moved with them, so that plan is the one to contact.

Plan number
008Employer EIN 20-1026454
Participants (2022)
4,127
Net assets (2022)
$15.1 million
Administered by
AonEarlier: Alight (2017)
Plan administrator
The Mosaic Company
101 East Kennedy BLVD, Suite 2500
Tampa, FL 33602
(813) 775-4200As filed for 2023
In effect since
February 1, 1988

Plans merged into this one: Mosaic Pension Plan for Salaried and Non-Union Hourly Employees (2021).

Earlier sponsor: Mos Holdings, Inc. (2010–2013).

Earlier plan names: Mosaic Pension Plan for Union Hourly Employees.

Year by year, 2009 to 2023
Plan yearParticipantsNet assetsRecordkeeper
20230$0not listed
20224,127$15.1 millionAon
20215,387$368 millionAon
20202,944$226 millionAon
20192,995$210 millionAon
20183,069$188 millionAon
20173,118$208 millionAlight
20163,154$193 millionnot listed
20153,751$206 millionnot listed
20143,852$229 millionnot listed
20133,888$203 millionnot listed
20123,928$208 millionnot listed
20113,959$186 millionnot listed
20103,990$166 millionnot listed
20094,016$151 millionnot listed

Mosaic Pension Plan for Salaried and Non-Union Hourly Employees

Pension (defined benefit), frozenMerged

Merged. In 2021 its assets moved to the Mosaic Combined U.S. Defined Benefit Pension Plan, sponsored by The Mosaic Company (EIN 20-1026454, plan 008). Accounts moved with them, so that plan is the one to contact.

Plan number
002Employer EIN 20-1026454
Participants (2020)
2,579
Net assets (2020)
$172 million
Administered by
AonEarlier: Alight (2017)
Plan administrator
The Mosaic Company
101 East Kennedy BLVD, Suite 2500
Tampa, FL 33602
(813) 775-4200As filed for 2021
In effect since
February 1, 1988

Earlier sponsor: Mos Holdings, Inc. (2010–2013).

Earlier plan names: Mosaic Pension Plan for Salaried and Non-Union.

Year by year, 2009 to 2021
Plan yearParticipantsNet assetsRecordkeeper
20210$0Aon
20202,579$172 millionAon
20192,645$165 millionAon
20182,709$154 millionAon
20172,805$181 millionAlight
20162,880$179 millionnot listed
20153,708$206 millionnot listed
20143,844$233 millionnot listed
20133,903$224 millionnot listed
20124,171$233 millionnot listed
20113,996$214 millionnot listed
20104,036$199 millionnot listed
20094,068$187 millionnot listed

If you had money in one of these plans

  1. Call Fidelity (fidelity.com), which runs the Mosaic 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.
  2. Or call the plan administrator listed on the plan below ((813) 775-4200). That number was filed for 2024; ask for the benefits or retirement plan office.
  3. If your plan was merged, your account moved with it. Follow the link on the plan to the plan it went into, and contact that one.
  4. 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

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

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