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OSB Group OSB.L · GBp

Financials · LSE · 🇬🇧 United Kingdom

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510.00p

+0.59%

Close of 9 Nov 2026, in pence

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Reference data, closing prices and charts across 45,000 companies, plus crypto, commodities and currencies.

Largest shareholders

As filed, so dates differ, and a group and its funds can both appear.

HolderSharesStakeChangeFiled
JPMorgan Asset Management U.K. Limited18.3m4.63%+122k14 Aug 2025
M&G Investment Management Ltd.11.3m2.85%—1 Aug 2025
BlackRock Institutional Trust Company, N.A.9.7m2.47%+18.9k1 Aug 2025
Allianz Global Investors GmbH5.5m1.38%—1 Aug 2025
Legal & General Investment Management Ltd.4.4m1.11%−53k1 Aug 2025
Ninety One UK Limited3.9m1.00%+66.3k30 Jun 2025
Aviva Investors Global Services Limited3.6m0.90%+2.1m1 Aug 2025
BlackRock Advisors (UK) Limited3m0.76%+5.2k1 Aug 2025
State Street Global Advisors (UK) Ltd.2.8m0.70%—1 Aug 2025
Santander Asset Management UK Limited2.5m0.63%—30 Jun 2025
Rathbone Unit Trust Management Limited2.3m0.58%—30 Jun 2025
HSBC Global Asset Management (UK) Limited2m0.50%+1.7m1 Aug 2025
Polaris Capital Management, LLC2m0.50%−261k30 Jun 2025
Algebris (UK) Limited1.7m0.44%−143.7k30 Jun 2025
Standard Life Assurance Limited1.4m0.37%−22.3k30 Jun 2025

Sources and methodology

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