401k Record

Employers › Ionis Pharmaceuticals

Ionis Pharmaceuticals 401(k)

Filed as negative.Schedule H line 2i(3) is reported as -$59,258. The filing is shown as received; the derived figures below treat a negative amount as zero, and a percentile is only shown for positive values.

Total assets, end of year · Ionis Pharmaceuticals 401(k) Plan · plan year 2024

$315,959,406

1,410 participants with a balance. This filing reports no recordkeeping fee and no administrative expenses excluding investment management, so there is no headline cost figure.

Source

Schedule H, Part I line 1f col (b); TOT_ASSETS_EOY_AMT pos 61; filing 20250825132852NAL0003932163001, received 2025-08-25
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20250825132852NAL0003932163001, received 2025-08-25

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 2025-08-25.

Cost and contributions

Recordkeeping fees per participant

not reported

Not reported on this filing.

Administrative expenses excluding investment management, per participant

$0.00

Fewer than 50 comparable plans report this figure; no percentile.

Source

= $0 / 1,410
derived, admin_expenses (2i(12)) minus invst_mgmt_fees (2i(5)), floored at 0; filing 20250825132852NAL0003932163001, received 2025-08-25
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20250825132852NAL0003932163001, received 2025-08-25

Administrative expenses per participant

$52.80

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

Higher than 22% of the 2,405 plans $250M to 1B that report it.

Source

= $74,452 / 1,410
Schedule H, line 2i(12) total administrative expenses; TOT_ADMIN_EXPENSES_AMT pos 109; filing 20250825132852NAL0003932163001, received 2025-08-25
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20250825132852NAL0003932163001, received 2025-08-25

Administrative expenses as a share of assets

0.024%

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

Higher than 14% of the 2,407 plans $250M to 1B that report it.

Source

= $74,452 / $315,959,406
Schedule H, line 2i(12) total administrative expenses; TOT_ADMIN_EXPENSES_AMT pos 109; filing 20250825132852NAL0003932163001, received 2025-08-25
assets_eoy: Schedule H, Part I line 1f col (b); TOT_ASSETS_EOY_AMT pos 61; filing 20250825132852NAL0003932163001, received 2025-08-25

Employer contributions per participant

$6,610

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

Higher than 84% of the 2,457 plans $250M to 1B that report it.

Source

= $9,319,779 / 1,410
Schedule H, Part II line 2a(1)(A); EMPLR_CONTRIB_INCOME_AMT pos 68; filing 20250825132852NAL0003932163001, received 2025-08-25
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20250825132852NAL0003932163001, received 2025-08-25

Employer share of total contributions

28.3%

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

Higher than 41% of the 2,459 plans $250M to 1B that report it.

Source

= $9,319,779 / $32,894,059
Schedule H, Part II line 2a(1)(A); EMPLR_CONTRIB_INCOME_AMT pos 68; filing 20250825132852NAL0003932163001, received 2025-08-25
total_contrib: Schedule H, line 2a(3); TOT_CONTRIB_AMT pos 72; filing 20250825132852NAL0003932163001, received 2025-08-25

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

Plan terms are described in Ionis Pharmaceuticals, Inc.'s SEC filings: Form 10-K filed 2026-02-26. No term could be quoted from them with the required precision.

Plan features

2G fully participant-directed · 2J 401(k) feature · 2K 401(m) arrangement · 2R participant brokerage window · 2S pre-approved plan document · 2T default investment (QDIA) · 3D IRS pre-approved plan · 3F · 2F ERISA 404(c) plan · 3H controlled-group sponsor · Form 5500, line 8a; TYPE_PENSION_BNFT_CODE pos 81; filing 20250825132852NAL0003932163001, received 2025-08-25

Full record, Ionis Pharmaceuticals 401(k) Plan

FieldValueSource
Plan sponsorIONIS PHARMACEUTICALS, INC.Form 5500, Part II line 2a; SPONSOR_DFE_NAME pos 19; filing 20250825132852NAL0003932163001, received 2025-08-25
Plan nameIONIS PHARMACEUTICALS 401(K) PLANForm 5500, line 1a; PLAN_NAME pos 16; filing 20250825132852NAL0003932163001, received 2025-08-25
Sponsor EIN / plan number33-0336973 / 001Form 5500, line 2b; SPONS_DFE_EIN pos 44; filing 20250825132852NAL0003932163001, received 2025-08-25
Plan typesingle-employerForm 5500, Part I line A; TYPE_PLAN_ENTITY_CD pos 4; filing 20250825132852NAL0003932163001, received 2025-08-25
Sponsor locationCARLSBAD, CAForm 5500, line 2a; SPONS_DFE_MAIL_US_STATE pos 25; filing 20250825132852NAL0003932163001, received 2025-08-25
Industry (business code)541700, Professional, scientific, and technical servicesForm 5500, line 2d; BUSINESS_CODE pos 46; filing 20250825132852NAL0003932163001, received 2025-08-25
Plan year2024-01-01 to 2024-12-31Form 5500, Part I plan year; FORM_PLAN_YEAR_BEGIN_DATE pos 2; filing 20250825132852NAL0003932163001, received 2025-08-25
Filing received2025-08-25Form 5500, EFAST2 receipt date; DATE_RECEIVED pos 102; filing 20250825132852NAL0003932163001, received 2025-08-25
Final filingnoForm 5500, Part I line B; FINAL_FILING_IND pos 8; filing 20250825132852NAL0003932163001, received 2025-08-25
Amended filingnoForm 5500, Part I line B; AMENDED_IND pos 7; filing 20250825132852NAL0003932163001, received 2025-08-25
Participants, beginning of year1,317Form 5500, line 5; TOT_PARTCP_BOY_CNT pos 71; filing 20250825132852NAL0003932163001, received 2025-08-25
Active participants1,043Form 5500, line 6a(2); TOT_ACTIVE_PARTCP_CNT pos 72; filing 20250825132852NAL0003932163001, received 2025-08-25
Participants, end of year1,434Form 5500, line 6f; TOT_ACT_RTD_SEP_BENEF_CNT pos 77; filing 20250825132852NAL0003932163001, received 2025-08-25
Participants with an account balance1,410Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20250825132852NAL0003932163001, received 2025-08-25
Total assets, beginning of year$254,811,590Schedule H, Part I line 1f col (a); TOT_ASSETS_BOY_AMT pos 30; filing 20250825132852NAL0003932163001, received 2025-08-25
Total assets, end of year$315,959,406Schedule H, Part I line 1f col (b); TOT_ASSETS_EOY_AMT pos 61; filing 20250825132852NAL0003932163001, received 2025-08-25
Net assets, end of year$315,959,406Schedule H, line 1l col (b); NET_ASSETS_EOY_AMT pos 67; filing 20250825132852NAL0003932163001, received 2025-08-25
Total income$78,439,356Schedule H, Part II line 2d; TOT_INCOME_AMT pos 97; filing 20250825132852NAL0003932163001, received 2025-08-25
Net income$61,147,816Schedule H, line 2k; NET_INCOME_AMT pos 111; filing 20250825132852NAL0003932163001, received 2025-08-25
Employer contributions$9,319,779Schedule H, Part II line 2a(1)(A); EMPLR_CONTRIB_INCOME_AMT pos 68; filing 20250825132852NAL0003932163001, received 2025-08-25
Participant contributions$18,914,697Schedule H, line 2a(1)(B); PARTICIPANT_CONTRIB_AMT pos 69; filing 20250825132852NAL0003932163001, received 2025-08-25
Other contributions (incl. rollovers)$4,659,583Schedule H, line 2a(1)(C); OTH_CONTRIB_RCVD_AMT pos 70; filing 20250825132852NAL0003932163001, received 2025-08-25
Total contributions$32,894,059Schedule H, line 2a(3); TOT_CONTRIB_AMT pos 72; filing 20250825132852NAL0003932163001, received 2025-08-25
Benefit payments$17,217,088Schedule H, line 2e(4); TOT_DISTRIB_BNFT_AMT pos 101; filing 20250825132852NAL0003932163001, received 2025-08-25
Total expenses (incl. benefit payments)$17,291,540Schedule H, line 2j; TOT_EXPENSES_AMT pos 110; filing 20250825132852NAL0003932163001, received 2025-08-25
Total administrative expenses$74,452Schedule H, line 2i(12) total administrative expenses; TOT_ADMIN_EXPENSES_AMT pos 109; filing 20250825132852NAL0003932163001, received 2025-08-25
Contract administrator fees$1,200Schedule H, line 2i(2); CONTRACT_ADMIN_FEES_AMT pos 106; filing 20250825132852NAL0003932163001, received 2025-08-25
Recordkeeping fees-$59,258 (filed as negative)Schedule H, line 2i(3); OTH_RECORDKEEPING_FEES_AMT pos 160; filing 20250825132852NAL0003932163001, received 2025-08-25
IQPA audit fees$0Schedule H, line 2i(4); IQPA_AUDIT_FEES_AMT pos 161; filing 20250825132852NAL0003932163001, received 2025-08-25
Investment advisory and management fees$132,510Schedule H, line 2i(5); INVST_MGMT_FEES_AMT pos 107; filing 20250825132852NAL0003932163001, received 2025-08-25
Administrative expenses excluding investment management$0derived, admin_expenses (2i(12)) minus invst_mgmt_fees (2i(5)), floored at 0; filing 20250825132852NAL0003932163001, received 2025-08-25
Held in master trusts$0Schedule H, line 1c(11) col (b); INT_MASTER_TR_EOY_AMT pos 53; filing 20250825132852NAL0003932163001, received 2025-08-25
Held in common/collective trusts$10,493,428Schedule H, line 1c(9) col (b); INT_COMMON_TR_EOY_AMT pos 51; filing 20250825132852NAL0003932163001, received 2025-08-25
Held in mutual funds$298,492,537Schedule H, line 1c(13) col (b); INT_REG_INVST_CO_EOY_AMT pos 55; filing 20250825132852NAL0003932163001, received 2025-08-25
Independent auditorJGD & ASSOCIATES LLPSchedule H, Part III line 3a; ACCOUNTANT_FIRM_NAME pos 116; filing 20250825132852NAL0003932163001, received 2025-08-25

Position = column in the DOL layout for form year 2024. Filing 20250825132852NAL0003932163001, received 2025-08-25.

Service providers paid directly by the plan

ProviderRelationshipService codesDirect compensationIndirect
FIRST LIGHT RETIREMENT LLCADVISOR 27 Investment advisory (plan) $132,510no
FIDELITY INVESTMENTS INSTITUTIONALrecordkeeperRECORDKEEPER 37 Participant loan processing; 60 Sub-transfer agency fees; 64 Recordkeeping fees; 65 Account maintenance fees $-58,058yes

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 20250825132852NAL0003932163001, received 2025-08-25.

What changed since the 2023 plan year

Figure20232024Change
Total assets$254,811,590$315,959,40624.0%
Participants with a balance1,2991,4108.5%
Administrative expenses$4,992$74,4521391.4%
Recordkeeping fees per participantnot reportednot reported
Employer contributions$7,607,127$9,319,77922.5%

Prior filing 20240919145528NAL0012966466001, received 2024-09-19; the plan years are contiguous.

Alerts, claims and corrections

Alert me when this filing changes

One email when a new Form 5500 for Ionis Pharmaceuticals 401(k) Plan appears in the Department of Labor data. Confirmation link first; unsubscribe link in every email.

Claim this plan

For the sponsor or its plan administrator: request to verify or annotate this page. A work email address at the sponsor speeds up verification.

Report a correction

Every figure is reproduced from the filing with its source. Tell us which figure and what the filing says instead.

Sponsor name as filed: IONIS PHARMACEUTICALS, INC.; SEC registrant: IONIS PHARMACEUTICALS INC (CIK 874015, matched by EIN; display name from the Form 10-K cover).