Missouri › Manufacturing › 5,000 to 24,999 participants
Form 5500 statement · plan year 1 Jan 2025 to 31 Dec 2025
Olin Corporation Retirement Savings Plan
Sponsored by Olin Corporation, Clayton, MO
Form 5500 information is as filed by the plan administrator with the Department of Labor and may be amended. Figures reflect the plan year shown, not current balances. Form 5500 contains no individual account balances. Look up the original filing at EFAST2.
Olin Corporation Retirement Savings Plan is an ESOP with a 401(k) feature sponsored by Olin Corporation of Clayton, Missouri. For the plan year ending 31 Dec 2025 it reported 9,102 participants, 6,835 of them active, and net assets of $1.52B.
Net assets came to $150,253 per participant in plan year 2024, well above the $64,499 median for defined contribution plans with 5,000 to 24,999 participants and well above the $62,303 median for defined contribution plans in manufacturing. The figure is an average across everyone in the plan, including former employees with small balances; Form 5500 holds no individual account data.
The employer contributed $68.9M during the year, or $10,081 per active participant against a same-size median of $2,424; participants contributed $61.0M and $11.2M arrived as rollovers and other contributions. Benefits paid out totalled $158M.
Schedule C lists 9 service provider organisations paid $5,000 or more, with reported compensation of $1.1M: $121 per participant, well above the same-size median of $53.38. Administrative expenses charged to the plan were $1.1M. Schedule C does not capture every cost: fees netted from fund returns and fees the employer pays directly are outside it.
Across the filings on record, net assets went from $382M in 2009 to $1.52B in 2025 (up 298%), and participants from 6,021 to 9,102 (up 51%).
The independent accountant's opinion on the financial statements was unmodified (unqualified).
Compared with similar plans
| Measure, plan year 2024 | This plan | Same size | Same industry | All US DC plans |
|---|---|---|---|---|
| Net assets per participant | $150,253 | $64,499 | $62,303 | $53,102 |
| Employer contributions per active participant | $7,751 | $2,424 | $2,187 | $2,175 |
| Schedule C compensation per participant | $108 | $53.38 | $136 | $123 |
| Schedule C compensation, share of net assets | 0.07% | 0.09% | 0.24% | 0.26% |
| Administrative expenses per participant | $108 | $54.85 | $131 | $116 |
Peer columns are medians for plan year 2024 across defined contribution plans with 100 or more participants: 5,000 to 24,999 participants (2,605 plans), manufacturing (11,377) and all US plans (63,460). Fee medians cover plans that report an amount.
Trend by plan year
| Plan year | Participants | Net assets | Per participant | Employer contributions | Participant contributions | Schedule C compensation |
|---|---|---|---|---|---|---|
| 2025 | 9,102 | $1.52B | $167,214 | $68.9M | $61.0M | $1.1M |
| 2024 | 9,055 | $1.36B | $150,253 | $52.2M | $56.7M | $975K |
| 2023 | 8,479 | $1.27B | $149,654 | $49.8M | $55.0M | $771K |
| 2022 | 8,992 | $1.09B | $121,484 | $49.7M | $53.0M | $708K |
| 2021 | 8,703 | $1.28B | $146,607 | $48.7M | $50.2M | $704K |
| 2020 | 8,924 | $1.04B | $117,054 | $33.4M | $43.0M | $766K |
| 2019 | 7,215 | $931M | $129,029 | $44.3M | $39.0M | $833K |
| 2018 | 7,785 | $764M | $98,126 | $42.6M | $35.9M | $1.3M |
| 2017 | 7,749 | $827M | $106,721 | $39.8M | $33.7M | $1.3M |
| 2016 | 7,629 | $686M | $89,984 | $38.2M | $31.8M | $1.1M |
| 2015 | 7,394 | $588M | $79,503 | $24.3M | $20.3M | $507K |
| 2014 | 5,952 | $561M | $94,299 | $20.8M | $17.3M | $631K |
| 2013 | 5,960 | $557M | $93,507 | $20.3M | $16.1M | $670K |
| 2012 | 5,971 | $478M | $80,115 | $19.2M | $15.2M | $447K |
| 2011 | 5,909 | $434M | $73,445 | $18.3M | $14.1M | $291K |
| 2010 | 5,988 | $432M | $72,192 | $14.2M | $12.9M | $225K |
| 2009 | 6,021 | $382M | $63,470 | $17.4M | $12.7M | $238K |
Years in which the plan filed the full Form 5500 with 100 or more participants, from 2009. Plan year is the year in which the plan year began.
Statement for the year
- Net assets, beginning of year$1,360,538,269
- Employer contributions$68,901,575
- Participant contributions$60,983,728
- Rollovers and other contributions$11,176,072
- Total contributions$141,061,375
- Total income, including investment results$320,970,089
- Benefits paid$158,060,414
- Administrative expenses$1,096,925
- Total expenses$159,530,627
- Net income$161,439,462
- Net transfers$0
- Net assets, end of year$1,521,977,731
Participants
- Active participants6,835
- Retired or separated, receiving benefits487
- Retired or separated, entitled to future benefits1,595
- Participants with account balances9,066
- Total participants, end of year9,102
Fees and service providers
| Organisation | Services reported | Direct | Indirect |
|---|---|---|---|
| Advised Assets Group, LLC | Investment management | $494,964 | $0 |
| Empower Annuity Insurance Company | Recordkeeping fees | $274,685 | $0 |
| Wells Fargo Advisors LLC | Investment advisory (plan); Consulting (general) | $90,000 | $0 |
| State Street Global Advisors Trust | Other fees; Investment management fees paid directly by plan | $75,000 | $0 |
| McGuirewoods LLP | Legal | $60,626 | $0 |
| Forvis Mazars LLP | Accounting (including auditing) | $52,891 | $0 |
| The Segal Company Eastern States in | Consulting (general) | $24,609 | $0 |
| Armanino LLP | Accounting (including auditing) | $24,150 | $0 |
| Charles Schwab & Co. Inc. | Investment advisory (participants); Securities brokerage | $5,887 | $0 |
Schedule C, Part I line 2: providers that received $5,000 or more, with the form's own service codes. Individuals named on Schedule C (plan employees, individual trustees) are never shown and their compensation is excluded. Eligible indirect compensation disclosed by formula carries no dollar amount. See how to read Schedule C fees.
Administrative expenses on Schedule H
- Investment advisory and management fees$684,573
- Recordkeeping fees$274,685
- IQPA audit fees$132,522
- Legal fees$5,145
- Total administrative expenses$1,096,925
Investment structure
Assets at year end by Schedule H category. The form shows the kind of vehicle holding the money, not the funds on the menu.
- Common/collective trusts$1.22B · 80.0%
- Registered investment companies (mutual funds)$166M · 10.9%
- Other investments$79.0M · 5.2%
- Employer securities$27.3M · 1.8%
- Participant loans$18.8M · 1.2%
- Receivables$13.7M · 0.9%
Audit and compliance answers, as filed
- Accountant's opinionUnmodified (unqualified)
- Audit scope limited under ERISA section 103(a)(3)(C)No
- Accounting firmForvis Mazars
- Participant contributions reported as transmitted lateNo
- Covered by a fidelity bondYes, $10,000,000
- Blackout period during the yearNo
These are the plan administrator's own answers on Schedule H, Part IV. A reported late transmittal is the filer's disclosure of a timing lapse, usually corrected through the Department of Labor's voluntary program; the amount is the total involved, not a loss.
Plan characteristics
2AAge/service weighted or new comparability or similar plan2EProfit-sharing plan2FERISA section 404(c) plan2GTotal participant-directed account plan2JCode section 401(k) feature2KCode section 401(m) arrangement2OESOP other than a leveraged ESOP2RParticipant-directed brokerage accounts provided as an investment option under the plan2S401(k) plan or 403(b) plan that provides for automatic enrollment2TTotal or partial participant-directed account plan with a default investment account3HPlan sponsor(s) is (are) a member(s) of a controlled group
Codes entered on Form 5500 line 8a, with the labels from the official instructions. Business code 325100: Basic Chemical Mfg.
Other plans of Olin Corporation
| Plan | Participants | Net assets |
|---|---|---|
| Olin Corporation Employees Pension Plan | 18,546 | $1.80B |
| The Goco Pension Plan | 1,107 | $146M |
Similar plans in Missouri
| Plan | Sponsor | Participants | Net assets | Per participant |
|---|---|---|---|---|
| Post Holdings, Inc. Savings Investment Plan | Post Holdings, Inc. | 9,385 | $1.22B | $129,834 |
| Barry-Wehmiller Companies' 401(k) Retirement Savings Plan | Barry-Wehmiller Companies, Inc. | 7,046 | $1.03B | $145,901 |
| Anheuser-Busch 401(k) Savings and Retirement Plan | Anheuser-Busch Companies, LLC | 21,016 | $3.62B | $172,215 |
| Leggett & Platt, Incorporated 401(k) Plan and Trust Agreement | Leggett & Platt, Incorporated | 6,708 | $483M | $72,074 |
| Emerson Savings Plan | Emerson Electric Company | 28,509 | $7.36B | $258,068 |
| National Beef Union 401(k) Plan | National Beef Packing Company, LLC | 6,114 | $23.8M | $3,889 |
Defined contribution plans in manufacturing closest in size.
Questions and answers
How big is Olin Corporation Retirement Savings Plan?
9,102 participants at the end of the plan year ending 31 Dec 2025, of whom 6,835 were active employees, with net assets of $1,521,977,731. Among defined contribution plans that places it in the 5,000 to 24,999 participants band, which held 2,605 plans in plan year 2024.
What does Olin Corporation contribute per participant?
The filing reports $68,901,575 in employer contributions for the year, which is $10,081 per active participant; the median for plans of the same type and size was $2,424 in plan year 2024. Form 5500 reports the total only. It does not state the match formula, and the per-participant figure is an average, not any one person's contribution.
What fees does the plan pay and how do they compare?
Schedule C reports $1,102,812 in compensation to service provider organisations, $121 per participant or 0.07% of net assets. The same-size median among plans reporting any Schedule C compensation was $53.38 per participant. Administrative expenses on Schedule H were $1,096,925. Investment costs deducted inside mutual funds and other pooled vehicles are not itemised on Form 5500, so these figures are a floor rather than a full cost.
Who runs the plan?
The sponsor is Olin Corporation. Recordkeeping or administration: Empower Annuity Insurance Company. Investment advisory or management: Advised Assets Group, LLC, Wells Fargo Advisors LLC and Charles Schwab & Co. Inc.. The financial statements were audited by Forvis Mazars. Form 5500 also names the plan administrator's signer and other individuals; this site publishes organisations only.
Was the audit opinion unqualified?
The filing reports an unmodified (unqualified) opinion. Unmodified (formerly "unqualified") is the standard clean opinion.
How current is this, and does it show my balance?
This is the Form 5500 for the plan year 1 Jan 2025 to 31 Dec 2025, received by the Department of Labor on 25 Jun 2026. Filings are due seven months after the plan year ends, or nine and a half with an extension, so the public record always runs a year or more behind. It contains plan-level totals only: no individual balances, contributions or names of participants exist in the data.
Provenance
Source: U.S. Department of Labor, Employee Benefits Security Administration, Form 5500 research files (Form 5500, Schedule H, Schedule C) for plan years 2009 to 2025, public domain, with filings received through 24 Aug 2026. This page shows the latest filing on record for EIN 13-1872319, plan 032, received 25 Jun 2026; an amended filing replaces it at the next build. Medians and percentiles are computed by this site; see the methodology. Report an error through corrections.