# EDGAR Filing Document

**Accession Number:** 0001729876
**File Stem:** 0001729876-26-000002
**Filing Date:** 2026-3
**Character Count:** 2437
**Document Hash:** 353459b94b49c484aa5840d468b3ef5f
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001729876-26-000002.hdr.sgml**: 20260302

**ACCESSION NUMBER**: 0001729876-26-000002

**CONFORMED SUBMISSION TYPE**: X-17A-5

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260302

**DATE AS OF CHANGE**: 20260302

**EFFECTIVENESS DATE**: 20260302

**PERIOD START**: 20251201

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MILLIMAN INVESTMENT MANAGEMENT SERVICES LLC
- **CENTRAL INDEX KEY:** 0001729876

**ORGANIZATION NAME:**
- **EIN:** 822722845
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** X-17A-5
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 008-70078
- **FILM NUMBER:** 26706356

**BUSINESS ADDRESS:**
- **STREET 1:** 71 S. WACKER DRIVE
- **STREET 2:** 31ST FLOOR
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606
- **BUSINESS PHONE:** 312-577-2915

**MAIL ADDRESS:**
- **STREET 1:** 71 S. WACKER DRIVE
- **STREET 2:** 31ST FLOOR
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606

### Attached PDF Documents

**Attachment 1:** `milpub122025.pdf`

_No text found in this document._

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM X-17A-5

### ANNUAL AUDITED REPORT

### Filer Information

**Filer CIK:** 0001729876

**Filer CCC:** XXXXXXXX

**Is this a LIVE or TEST filing?:** LIVE

**Would you like a Return Copy?:** Yes

### Submission Information

**Report Period Begin Date:** 12-01-2025

**Report Period End Date:** 12-31-2025

**Type of Registrant:** Broker-dealer

**Any material weaknesses identified?:** No

### Registrant Identification

**Name of Broker-Dealer:** MILLIMAN INVESTMENT MANAGEMENT SERVICES LLC

**Business Address:** 71 S. WACKER DRIVE, 31ST FLOOR, CHICAGO, IL, 60606

**Contact Person:** Robert Campbell

**Contact Phone:** 973-727-7379

### Independent Public Accountant Identification

**Accountant Name:** Dejoy & Co.

**Accountant Address:** 280 East Broad Street, Suite 300, Rochester, NY, 14604

**Accountant Type:** Certified Public Accountant

### OATH OR AFFIRMATION

I, **Connor Cassidy**, swear (or affirm) that, to the best of my knowledge and belief, the accompanying financial statements and supporting schedules pertaining to the firm of **MILLIMAN INVESTMENT MANAGEMENT SERVICES LLC**, as of **12-31-2025**, are true and correct.

**Signature:** Connor Cassidy

**Title:** Chief Executive Officer