Plan Ledger DOL Form 5500 · updated monthly

Aaon, Inc.401(k)

AAON, INC. SAVINGS AND INVESTMENT PLAN · TULSA, OK · plan year 2024

Reported admin expense ratio · 2024
0.11%

Peer grade: B · admin costs + employer contributions vs same-size plans · how grading works

Aaon, Inc. reported $410,540 in plan administrative expenses for 2024: 0.11% of average plan assets, above the peer median. Employer contributions averaged $4,349 per active participant. This ratio covers administrative expenses reported on the plan's Schedule H only; fund-level expense ratios are not included in public structured data — see methodology.

Across the 3 years on file its reported administrative ratio fell from 0.15% to 0.13%. The plan sits in the $250M–$1B size bracket, benchmarked here against 2,883 comparable plans and shown alongside other manufacturing employers. By assets it is the 20th-largest of 724 plans among Oklahoma employers on file, and the 628th of 13,661 in manufacturing. In 2024, the employer put in $1.14 for every $1.00 employees contributed themselves; active participation has grown from 3,270 to 4,648 since 2022.

Plan summary
Net assets, end of year$448,801,918
Participants with balances5,112
Active participants4,648
Employer contributions$20,213,916
Employee contributions$17,717,419
Employer contribution per active participant$4,349
Average account balance$87,794
Benefits paid to participants$30,021,255
Plan auditUnmodified (clean) audit opinion
Plan history4
Yearassets · accounts · employer contribution
2025$381.3M · 6,455 accts · $24.9M emplr
2024$448.8M · 5,112 accts · $20.2M emplr
2023$311.5M · 4,617 accts · $17.2M emplr
2022$224.8M · 3,692 accts · $15.4M emplr
Administrative expenses, itemized · 2024
Recordkeeping & contract admin$263,416
Investment management$48,055
Trustee / custodial$65,521
Total administrative$410,540
The Aaon, Inc. 401(k) match · 2024
Employer contribution per active participant$4,349
Median for plans this size$4,294
2025$4,296 per active participant
2024$4,349 per active participant
2023$4,665 per active participant
2022$4,718 per active participant

Aaon, Inc.'s 2024 employer contribution ran above the $4,294 median for plans its size. Filings report dollars actually contributed, not the match formula; the formula itself (for example, 50% of the first 6% of pay) lives in the plan's summary plan description from HR.

What these fees cost you

Annual cost at the plan's reported 2024 administrative ratio, against the median plan its size; fund expense ratios are extra. Compare any plan.

Service providers · 20241
BOKF, NA · Custodial (securities) · Trustee$410,540

Compensation shown is direct payments from plan assets reported on Schedule C. Providers paid through fund revenue-sharing appear as indirect.

Administrative cost history4
2025$520,912 · 0.13%
2024$410,540 · 0.11%
2023$338,672 · 0.13%
2022$332,601 · 0.15%
Similar plansManufacturing · Oklahoma
Advantest America, Inc. CA$450.2M · 0.01%
Coty Inc. NY$449.6M · 0.20%
The Lee Company CT$449.3M
Dexcom Inc CA$448.9M
Wells Enterprises, Inc. IA$445.8M · 0.10%
Weir Group, Inc. TX$444.2M · 0.12%
Lamb Weston, Inc. ID$444.2M · 0.09%

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Source: U.S. Department of Labor, Form 5500 series, EIN 731328149 · Verify on EFAST2 · Amounts are as reported by the plan sponsor for the plan year shown.