401k Record

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Rambus 401(k)

Recordkeeping fees per participant · Rambus Inc. 401(k) Plan · plan year 2024

$97.00

Higher than 72% of the 5,847 plans $50 to 250M that report it.

Source

= $59,556 / 614
Schedule H, line 2i(3); OTH_RECORDKEEPING_FEES_AMT pos 160; filing 20250919163738NAL0003301891001, received 2025-09-19
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20250919163738NAL0003301891001, received 2025-09-19

10th: $10.22median $69.9190th: $151.08

Percentiles compare this plan with the Schedule H plans $50 to 250M 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 2025-09-19.

Cost and contributions

Administrative expenses excluding investment management, per participant

$97.97

10th: $16.21median $93.2090th: $246.84

Higher than 53% of the 8,758 plans $50 to 250M that report it.

Source

= $60,156 / 614
derived, admin_expenses (2i(12)) minus invst_mgmt_fees (2i(5)), floored at 0; filing 20250919163738NAL0003301891001, received 2025-09-19
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20250919163738NAL0003301891001, received 2025-09-19

Administrative expenses per participant

$97.97

10th: $29.39median $132.8490th: $350.58

Higher than 35% of the 9,042 plans $50 to 250M that report it.

Source

= $60,156 / 614
Schedule H, line 2i(12) total administrative expenses; TOT_ADMIN_EXPENSES_AMT pos 109; filing 20250919163738NAL0003301891001, received 2025-09-19
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20250919163738NAL0003301891001, received 2025-09-19

Administrative expenses as a share of assets

0.034%

10th: 0.022%median 0.136%90th: 0.326%

Higher than 14% of the 9,049 plans $50 to 250M that report it.

Source

= $60,156 / $179,460,076
Schedule H, line 2i(12) total administrative expenses; TOT_ADMIN_EXPENSES_AMT pos 109; filing 20250919163738NAL0003301891001, received 2025-09-19
assets_eoy: Schedule H, Part I line 1f col (b); TOT_ASSETS_EOY_AMT pos 61; filing 20250919163738NAL0003301891001, received 2025-09-19

Employer contributions per participant

$3,312

10th: $965median $2,73890th: $8,164

Higher than 60% of the 9,105 plans $50 to 250M that report it.

Source

= $2,033,799 / 614
Schedule H, Part II line 2a(1)(A); EMPLR_CONTRIB_INCOME_AMT pos 68; filing 20250919163738NAL0003301891001, received 2025-09-19
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20250919163738NAL0003301891001, received 2025-09-19

Employer share of total contributions

17.8%

10th: 15.6%median 29.5%90th: 50.6%

Higher than 13% of the 9,112 plans $50 to 250M that report it.

Source

= $2,033,799 / $11,429,012
Schedule H, Part II line 2a(1)(A); EMPLR_CONTRIB_INCOME_AMT pos 68; filing 20250919163738NAL0003301891001, received 2025-09-19
total_contrib: Schedule H, line 2a(3); TOT_CONTRIB_AMT pos 72; filing 20250919163738NAL0003301891001, received 2025-09-19

Plan terms, as stated in Rambus Inc.'s SEC filings

Employer match

“The Company matches 50% of each eligible employee’s contribution, up to the first 6% of an eligible employee’s qualified earnings.”

Form 10-K filed 2026-02-18, for the year ended 2025-12-31 · benefits note, 10-K benefits note · 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

2F ERISA 404(c) plan · 2G fully participant-directed · 2J 401(k) feature · 2K 401(m) arrangement · 2T default investment (QDIA) · 3D IRS pre-approved plan · 2R participant brokerage window · 3H controlled-group sponsor · Form 5500, line 8a; TYPE_PENSION_BNFT_CODE pos 81; filing 20250919163738NAL0003301891001, received 2025-09-19

Full record, Rambus Inc. 401(k) Plan

FieldValueSource
Plan sponsorRAMBUS, INC.Form 5500, Part II line 2a; SPONSOR_DFE_NAME pos 19; filing 20250919163738NAL0003301891001, received 2025-09-19
Plan nameRAMBUS INC. 401(K) PLANForm 5500, line 1a; PLAN_NAME pos 16; filing 20250919163738NAL0003301891001, received 2025-09-19
Sponsor EIN / plan number94-3112828 / 001Form 5500, line 2b; SPONS_DFE_EIN pos 44; filing 20250919163738NAL0003301891001, received 2025-09-19
Plan typesingle-employerForm 5500, Part I line A; TYPE_PLAN_ENTITY_CD pos 4; filing 20250919163738NAL0003301891001, received 2025-09-19
Sponsor locationSAN JOSE, CAForm 5500, line 2a; SPONS_DFE_MAIL_US_STATE pos 25; filing 20250919163738NAL0003301891001, received 2025-09-19
Industry (business code)541519, Professional, scientific, and technical servicesForm 5500, line 2d; BUSINESS_CODE pos 46; filing 20250919163738NAL0003301891001, received 2025-09-19
Plan year2024-01-01 to 2024-12-31Form 5500, Part I plan year; FORM_PLAN_YEAR_BEGIN_DATE pos 2; filing 20250919163738NAL0003301891001, received 2025-09-19
Filing received2025-09-19Form 5500, EFAST2 receipt date; DATE_RECEIVED pos 102; filing 20250919163738NAL0003301891001, received 2025-09-19
Final filingnoForm 5500, Part I line B; FINAL_FILING_IND pos 8; filing 20250919163738NAL0003301891001, received 2025-09-19
Amended filingnoForm 5500, Part I line B; AMENDED_IND pos 7; filing 20250919163738NAL0003301891001, received 2025-09-19
Participants, beginning of year609Form 5500, line 5; TOT_PARTCP_BOY_CNT pos 71; filing 20250919163738NAL0003301891001, received 2025-09-19
Active participants339Form 5500, line 6a(2); TOT_ACTIVE_PARTCP_CNT pos 72; filing 20250919163738NAL0003301891001, received 2025-09-19
Participants, end of year654Form 5500, line 6f; TOT_ACT_RTD_SEP_BENEF_CNT pos 77; filing 20250919163738NAL0003301891001, received 2025-09-19
Participants with an account balance614Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20250919163738NAL0003301891001, received 2025-09-19
Total assets, beginning of year$164,130,684Schedule H, Part I line 1f col (a); TOT_ASSETS_BOY_AMT pos 30; filing 20250919163738NAL0003301891001, received 2025-09-19
Total assets, end of year$179,460,076Schedule H, Part I line 1f col (b); TOT_ASSETS_EOY_AMT pos 61; filing 20250919163738NAL0003301891001, received 2025-09-19
Net assets, end of year$179,460,025Schedule H, line 1l col (b); NET_ASSETS_EOY_AMT pos 67; filing 20250919163738NAL0003301891001, received 2025-09-19
Total income$39,746,190Schedule H, Part II line 2d; TOT_INCOME_AMT pos 97; filing 20250919163738NAL0003301891001, received 2025-09-19
Net income$15,329,369Schedule H, line 2k; NET_INCOME_AMT pos 111; filing 20250919163738NAL0003301891001, received 2025-09-19
Employer contributions$2,033,799Schedule H, Part II line 2a(1)(A); EMPLR_CONTRIB_INCOME_AMT pos 68; filing 20250919163738NAL0003301891001, received 2025-09-19
Participant contributions$7,805,909Schedule H, line 2a(1)(B); PARTICIPANT_CONTRIB_AMT pos 69; filing 20250919163738NAL0003301891001, received 2025-09-19
Other contributions (incl. rollovers)$1,589,304Schedule H, line 2a(1)(C); OTH_CONTRIB_RCVD_AMT pos 70; filing 20250919163738NAL0003301891001, received 2025-09-19
Total contributions$11,429,012Schedule H, line 2a(3); TOT_CONTRIB_AMT pos 72; filing 20250919163738NAL0003301891001, received 2025-09-19
Benefit payments$24,341,569Schedule H, line 2e(4); TOT_DISTRIB_BNFT_AMT pos 101; filing 20250919163738NAL0003301891001, received 2025-09-19
Total expenses (incl. benefit payments)$24,416,821Schedule H, line 2j; TOT_EXPENSES_AMT pos 110; filing 20250919163738NAL0003301891001, received 2025-09-19
Total administrative expenses$60,156Schedule H, line 2i(12) total administrative expenses; TOT_ADMIN_EXPENSES_AMT pos 109; filing 20250919163738NAL0003301891001, received 2025-09-19
Contract administrator fees$600Schedule H, line 2i(2); CONTRACT_ADMIN_FEES_AMT pos 106; filing 20250919163738NAL0003301891001, received 2025-09-19
Recordkeeping fees$59,556Schedule H, line 2i(3); OTH_RECORDKEEPING_FEES_AMT pos 160; filing 20250919163738NAL0003301891001, received 2025-09-19
IQPA audit fees$0Schedule H, line 2i(4); IQPA_AUDIT_FEES_AMT pos 161; filing 20250919163738NAL0003301891001, received 2025-09-19
Investment advisory and management fees$0Schedule H, line 2i(5); INVST_MGMT_FEES_AMT pos 107; filing 20250919163738NAL0003301891001, received 2025-09-19
Administrative expenses excluding investment management$60,156derived, admin_expenses (2i(12)) minus invst_mgmt_fees (2i(5)), floored at 0; filing 20250919163738NAL0003301891001, received 2025-09-19
Held in master trusts$0Schedule H, line 1c(11) col (b); INT_MASTER_TR_EOY_AMT pos 53; filing 20250919163738NAL0003301891001, received 2025-09-19
Held in common/collective trusts$0Schedule H, line 1c(9) col (b); INT_COMMON_TR_EOY_AMT pos 51; filing 20250919163738NAL0003301891001, received 2025-09-19
Held in mutual funds$165,684,867Schedule H, line 1c(13) col (b); INT_REG_INVST_CO_EOY_AMT pos 55; filing 20250919163738NAL0003301891001, received 2025-09-19
Independent auditorBAKER TILLY US, LLPSchedule H, Part III line 3a; ACCOUNTANT_FIRM_NAME pos 116; filing 20250919163738NAL0003301891001, received 2025-09-19

Position = column in the DOL layout for form year 2024. Filing 20250919163738NAL0003301891001, received 2025-09-19.

Service providers paid directly by the plan

ProviderRelationshipService codesDirect compensationIndirect
FIDELITY INVESTMENTS INSTITUTIONALrecordkeeperRECORDKEEPER 37 Participant loan processing; 60 Sub-transfer agency fees; 64 Recordkeeping fees; 65 Account maintenance fees; 71 Securities brokerage commissions and fees $63,396yes

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 20250919163738NAL0003301891001, received 2025-09-19.

What changed since the 2023 plan year

Figure20232024Change
Total assets$164,130,684$179,460,0769.3%
Participants with a balance5906144.1%
Administrative expenses$64,855$60,156-7.2%
Recordkeeping fees per participant$109.92$97.00-11.8%
Employer contributions$1,999,009$2,033,7991.7%

Prior filing 20241010165250NAL0034807376001, received 2024-10-10; the plan years are contiguous.

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Sponsor name as filed: RAMBUS, INC.; SEC registrant: RAMBUS INC (CIK 917273, matched by EIN; display name from the Form 10-K cover).