401k Record

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Kirby 401(k)

Recordkeeping fees per participant · Kirby 401(k) Plan · plan year 2024

$70.10

Higher than 77% of the 1,697 plans $250M to 1B that report it.

Source

= $448,799 / 6,402
Schedule H, line 2i(3); OTH_RECORDKEEPING_FEES_AMT pos 160; filing 20251013140313NAL0000689059003, received 2025-10-13
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20251013140313NAL0000689059003, received 2025-10-13

10th: $11.56median $49.9890th: $89.63

Percentiles compare this plan with the Schedule H plans $250M to 1B in assets of the same plan year, excluding final filings; shown only where at least 50 comparable plans report the figure. Plan year 2024-01-01 to 2024-12-31, filing received 2025-10-13.

Cost and contributions

Administrative expenses excluding investment management, per participant

$76.43

10th: $18.52median $67.2190th: $147.71

Higher than 60% of the 2,324 plans $250M to 1B that report it.

Source

= $489,291 / 6,402
derived, admin_expenses (2i(12)) minus invst_mgmt_fees (2i(5)), floored at 0; filing 20251013140313NAL0000689059003, received 2025-10-13
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20251013140313NAL0000689059003, received 2025-10-13

Administrative expenses per participant

$84.63

10th: $27.95median $88.2590th: $203.68

Higher than 48% of the 2,405 plans $250M to 1B that report it.

Source

= $541,791 / 6,402
Schedule H, line 2i(12) total administrative expenses; TOT_ADMIN_EXPENSES_AMT pos 109; filing 20251013140313NAL0000689059003, received 2025-10-13
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20251013140313NAL0000689059003, received 2025-10-13

Administrative expenses as a share of assets

0.064%

10th: 0.018%median 0.073%90th: 0.183%

Higher than 44% of the 2,407 plans $250M to 1B that report it.

Source

= $541,791 / $850,124,257
Schedule H, line 2i(12) total administrative expenses; TOT_ADMIN_EXPENSES_AMT pos 109; filing 20251013140313NAL0000689059003, received 2025-10-13
assets_eoy: Schedule H, Part I line 1f col (b); TOT_ASSETS_EOY_AMT pos 61; filing 20251013140313NAL0000689059003, received 2025-10-13

Employer contributions per participant

$4,919

10th: $1,169median $3,07390th: $8,346

Higher than 73% of the 2,457 plans $250M to 1B that report it.

Source

= $31,491,168 / 6,402
Schedule H, Part II line 2a(1)(A); EMPLR_CONTRIB_INCOME_AMT pos 68; filing 20251013140313NAL0000689059003, received 2025-10-13
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20251013140313NAL0000689059003, received 2025-10-13

Employer share of total contributions

49.6%

10th: 17.5%median 31.1%90th: 48.7%

Higher than 90% of the 2,459 plans $250M to 1B that report it.

Source

= $31,491,168 / $63,430,420
Schedule H, Part II line 2a(1)(A); EMPLR_CONTRIB_INCOME_AMT pos 68; filing 20251013140313NAL0000689059003, received 2025-10-13
total_contrib: Schedule H, line 2a(3); TOT_CONTRIB_AMT pos 72; filing 20251013140313NAL0000689059003, received 2025-10-13

Plan terms, as stated in Kirby Corporation's SEC filings

Employer match

“The Company contributes matching employer contributions equal to 100% of the employee’s contribution, up to 3% of the employee’s considered compensation.”

Form 11-K filed 2026-06-26, for the year ended 2025-12-31 · plan description note, contributions · source document

Vesting

“Employer contributions are subject to a six-year vesting schedule.”

Form 11-K filed 2026-06-26, for the year ended 2025-12-31 · plan description note, vesting · source document

Automatic enrollment

“All employees hired or rehired are automatically enrolled at a 3% pretax contribution rate, unless otherwise elected by the participant.”

Form 11-K filed 2026-06-26, for the year ended 2025-12-31 · plan description note, contributions · source document

Terms quoted from the filing for the year ended 2025-12-31. Figures cover plan year 2024. The plan document governs.

Plan features

2J 401(k) feature · 2S pre-approved plan document · 3D IRS pre-approved plan · 3H controlled-group sponsor · Form 5500, line 8a; TYPE_PENSION_BNFT_CODE pos 81; filing 20251013140313NAL0000689059003, received 2025-10-13

Full record, Kirby 401(k) Plan

FieldValueSource
Plan sponsorKIRBY CORPORATIONForm 5500, Part II line 2a; SPONSOR_DFE_NAME pos 19; filing 20251013140313NAL0000689059003, received 2025-10-13
Plan nameKIRBY 401K PLANForm 5500, line 1a; PLAN_NAME pos 16; filing 20251013140313NAL0000689059003, received 2025-10-13
Sponsor EIN / plan number74-1884980 / 004Form 5500, line 2b; SPONS_DFE_EIN pos 44; filing 20251013140313NAL0000689059003, received 2025-10-13
Plan typesingle-employerForm 5500, Part I line A; TYPE_PLAN_ENTITY_CD pos 4; filing 20251013140313NAL0000689059003, received 2025-10-13
Sponsor locationHOUSTON, TXForm 5500, line 2a; SPONS_DFE_MAIL_US_STATE pos 25; filing 20251013140313NAL0000689059003, received 2025-10-13
Industry (business code)483000, Transportation and warehousingForm 5500, line 2d; BUSINESS_CODE pos 46; filing 20251013140313NAL0000689059003, received 2025-10-13
Plan year2024-01-01 to 2024-12-31Form 5500, Part I plan year; FORM_PLAN_YEAR_BEGIN_DATE pos 2; filing 20251013140313NAL0000689059003, received 2025-10-13
Filing received2025-10-13Form 5500, EFAST2 receipt date; DATE_RECEIVED pos 102; filing 20251013140313NAL0000689059003, received 2025-10-13
Final filingnoForm 5500, Part I line B; FINAL_FILING_IND pos 8; filing 20251013140313NAL0000689059003, received 2025-10-13
Amended filingnoForm 5500, Part I line B; AMENDED_IND pos 7; filing 20251013140313NAL0000689059003, received 2025-10-13
Participants, beginning of year6,574Form 5500, line 5; TOT_PARTCP_BOY_CNT pos 71; filing 20251013140313NAL0000689059003, received 2025-10-13
Active participants5,146Form 5500, line 6a(2); TOT_ACTIVE_PARTCP_CNT pos 72; filing 20251013140313NAL0000689059003, received 2025-10-13
Participants, end of year6,601Form 5500, line 6f; TOT_ACT_RTD_SEP_BENEF_CNT pos 77; filing 20251013140313NAL0000689059003, received 2025-10-13
Participants with an account balance6,402Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20251013140313NAL0000689059003, received 2025-10-13
Total assets, beginning of year$777,136,884Schedule H, Part I line 1f col (a); TOT_ASSETS_BOY_AMT pos 30; filing 20251013140313NAL0000689059003, received 2025-10-13
Total assets, end of year$850,124,257Schedule H, Part I line 1f col (b); TOT_ASSETS_EOY_AMT pos 61; filing 20251013140313NAL0000689059003, received 2025-10-13
Net assets, end of year$850,124,257Schedule H, line 1l col (b); NET_ASSETS_EOY_AMT pos 67; filing 20251013140313NAL0000689059003, received 2025-10-13
Total income$170,954,545Schedule H, Part II line 2d; TOT_INCOME_AMT pos 97; filing 20251013140313NAL0000689059003, received 2025-10-13
Net income$72,987,373Schedule H, line 2k; NET_INCOME_AMT pos 111; filing 20251013140313NAL0000689059003, received 2025-10-13
Employer contributions$31,491,168Schedule H, Part II line 2a(1)(A); EMPLR_CONTRIB_INCOME_AMT pos 68; filing 20251013140313NAL0000689059003, received 2025-10-13
Participant contributions$30,123,133Schedule H, line 2a(1)(B); PARTICIPANT_CONTRIB_AMT pos 69; filing 20251013140313NAL0000689059003, received 2025-10-13
Other contributions (incl. rollovers)$1,816,119Schedule H, line 2a(1)(C); OTH_CONTRIB_RCVD_AMT pos 70; filing 20251013140313NAL0000689059003, received 2025-10-13
Total contributions$63,430,420Schedule H, line 2a(3); TOT_CONTRIB_AMT pos 72; filing 20251013140313NAL0000689059003, received 2025-10-13
Benefit payments$97,425,381Schedule H, line 2e(4); TOT_DISTRIB_BNFT_AMT pos 101; filing 20251013140313NAL0000689059003, received 2025-10-13
Total expenses (incl. benefit payments)$97,967,172Schedule H, line 2j; TOT_EXPENSES_AMT pos 110; filing 20251013140313NAL0000689059003, received 2025-10-13
Total administrative expenses$541,791Schedule H, line 2i(12) total administrative expenses; TOT_ADMIN_EXPENSES_AMT pos 109; filing 20251013140313NAL0000689059003, received 2025-10-13
Recordkeeping fees$448,799Schedule H, line 2i(3); OTH_RECORDKEEPING_FEES_AMT pos 160; filing 20251013140313NAL0000689059003, received 2025-10-13
IQPA audit fees$32,550Schedule H, line 2i(4); IQPA_AUDIT_FEES_AMT pos 161; filing 20251013140313NAL0000689059003, received 2025-10-13
Investment advisory and management fees$52,500Schedule H, line 2i(5); INVST_MGMT_FEES_AMT pos 107; filing 20251013140313NAL0000689059003, received 2025-10-13
Administrative expenses excluding investment management$489,291derived, admin_expenses (2i(12)) minus invst_mgmt_fees (2i(5)), floored at 0; filing 20251013140313NAL0000689059003, received 2025-10-13
Held in common/collective trusts$518,596,463Schedule H, line 1c(9) col (b); INT_COMMON_TR_EOY_AMT pos 51; filing 20251013140313NAL0000689059003, received 2025-10-13
Held in mutual funds$250,926,227Schedule H, line 1c(13) col (b); INT_REG_INVST_CO_EOY_AMT pos 55; filing 20251013140313NAL0000689059003, received 2025-10-13
Independent auditorWEAVER AND TIDWELL, LLPSchedule H, Part III line 3a; ACCOUNTANT_FIRM_NAME pos 116; filing 20251013140313NAL0000689059003, received 2025-10-13

Position = column in the DOL layout for form year 2024. Filing 20251013140313NAL0000689059003, received 2025-10-13.

Service providers paid directly by the plan

ProviderRelationshipService codesDirect compensationIndirect
MERRILL LYNCHrecordkeeperRECORDKEEPER 15 Recordkeeping and information management; 33 Securities brokerage $448,799yes
AMG OPS- FEE GROUPCONSULTANT 16 Consulting (general); 28 Investment management $52,500no
WEAVER AND TIDWELL, LLPACCOUNTANT 10 Accounting (including auditing); 50 Direct payment from the plan $32,550no
NORTON ROSE FULBRIGHT US LLPOTHER 29 Legal $6,142no

Schedule C Part I line 2: name (a), service codes (b), relationship (c), direct compensation paid by the plan (d), indirect compensation received (e). Filing 20251013140313NAL0000689059003, received 2025-10-13.

What changed since the 2023 plan year

Figure20232024Change
Total assets$777,136,884$850,124,2579.4%
Participants with a balance6,3686,4020.5%
Administrative expenses$474,910$541,79114.1%
Recordkeeping fees per participant$58.06$70.1020.7%
Employer contributions$27,590,873$31,491,16814.1%

Prior filing 20241011084805NAL0043087874003, received 2024-10-11; the plan years are contiguous.

Alerts, claims and corrections

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Sponsor name as filed: KIRBY CORPORATION; SEC registrant: KIRBY CORP (CIK 56047, matched by EIN; display name from the Form 10-K cover).