WILLIAM BLAIR MAS LTD.

OWJOLMSRHBJHORN27C94Copied!

ACTIVE LAPSED 🇰🇾 Cayman Islands

WILLIAM BLAIR MAS LTD. is an active legal entity registered in Cayman Islands (KY). LEI code: OWJOLMSRHBJHORN27C94. The LEI was first issued on Oct 13, 2012 and is managed by LOU 39120001KULK7200U106. Next renewal is due Nov 29, 2022.

ⓘ Entity Details

LEI Code OWJOLMSRHBJHORN27C94 Legal Name WILLIAM BLAIR MAS LTD. Status ACTIVE Jurisdiction 🇰🇾 Cayman Islands (KY) Category General Entities Legal Form company limited by shares Registration # WK-261447

⛩ Registration & Compliance

Reg. Status LAPSED Initial Reg. Oct 13, 2012 Last Updated Aug 3, 2023 Next Renewal Nov 29, 2022 (1174 days overdue) Corroboration PARTIALLY_CORROBORATED Managing LOU SIX Group AG Reg. Authority Registry of Companies

⚑ Addresses

Legal / Registered Address
General Registry Department, Ground Floor
Government Administration Building, 133 Elgin Avenue Grand Cayman
George Town
KY1-9000
KY
Headquarters Address
222 West Adams Street
Chicago
US-IL
60606
US

📅 Registration Timeline

First Issued
Oct 13, 2012 — LEI initially registered
Renewal Overdue
Nov 29, 2022 — Renewal deadline has passed
Last Updated
Aug 3, 2023 — Record data last refreshed

★ Data Quality

70%
7 of 10 data fields populated
● Legal Name
● Legal Address
● HQ Address
● Jurisdiction
● Registration #
● Legal Form
○ BIC / SWIFT
● Ownership Data
○ Other Names
○ Corroboration

🔎 LEI Code Anatomy

Every LEI is a 20-character alphanumeric code structured in three parts per ISO 17442

OWJO
LMSRHBJHORN27C
94
LOU Prefix
Characters 1–4 identify the Local Operating Unit that issued this LEI
Entity Identifier
Characters 5–18 are unique to this specific legal entity
Check Digits ✓
Characters 19–20 are verification digits (MOD 97-10). This LEI passes checksum validation.

↗ Ownership & Relationships

Corporate structure and ownership hierarchy based on GLEIF Level 2 relationship data

Parent Entities (2)

WILLIAM BLAIR FUNDS Direct Parent

This entity is directly consolidated by its parent in accounting terms.

WILLIAM BLAIR MACRO ALLOCATION FUND LLC Ultimate Parent

This entity is ultimately consolidated by the top-level parent entity.

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? Frequently Asked Questions

What is the LEI number for WILLIAM BLAIR MAS LTD.? +

The Legal Entity Identifier (LEI) for WILLIAM BLAIR MAS LTD. is OWJOLMSRHBJHORN27C94. This 20-character code uniquely identifies WILLIAM BLAIR MAS LTD. in global financial transactions as per ISO 17442.

Is WILLIAM BLAIR MAS LTD.'s LEI active? +

Yes, WILLIAM BLAIR MAS LTD.'s LEI is currently active (registration status: LAPSED). The record was last updated on Aug 3, 2023 and is due for renewal on Nov 29, 2022.

Where is WILLIAM BLAIR MAS LTD. registered? +

WILLIAM BLAIR MAS LTD. is registered in Cayman Islands (jurisdiction: KY). The entity is registered under business register number WK-261447.

Who owns WILLIAM BLAIR MAS LTD.? +

According to GLEIF Level 2 relationship data, WILLIAM BLAIR MAS LTD.'s parent entity is WILLIAM BLAIR MACRO ALLOCATION FUND LLC. This ownership information is based on accounting consolidation data reported to the Global LEI System.

What is a Legal Entity Identifier (LEI)? +

An LEI is a 20-character alphanumeric code based on the ISO 17442 standard. It connects to key reference information that enables clear and unique identification of legal entities participating in financial transactions. LEIs are issued by Local Operating Units (LOUs) accredited by the Global Legal Entity Identifier Foundation (GLEIF).

About This LEI Record

This page shows the Legal Entity Identifier (LEI) record for WILLIAM BLAIR MAS LTD., registered in Cayman Islands. The LEI code OWJOLMSRHBJHORN27C94 is a globally unique 20-character identifier assigned under the ISO 17442 standard to legal entities participating in financial transactions.

The reference data displayed above is sourced from the Global Legal Entity Identifier Foundation (GLEIF) and is updated hourly. This includes Level 1 data (entity identification and addresses) and Level 2 data (ownership relationships), where available.

If the registration status shows "Lapsed," it means the entity has not completed its annual renewal — the LEI still uniquely identifies this entity, but the reference data may not reflect the most recent information. For the most authoritative data, you can cross-reference this record on the official GLEIF website.