Invesco Perpetual has invested a further £9.4m in AJ Bell valuing the business at £107m.
The proceeds are split equally between Andy Bell and management, with management and employee shareholders diluting by approximately 10 per cent.
This follows just over a year since Invesco Perpetual and Midas Capital purchased £14m of shares.
This transaction values the business at approximately £107 million, up over 37 per cent since February 2007.
Invesco Perpetual has increased its stake in A J Bell to approximately 23 per cent and Midas Capital remains at approximately 15per cent, both holdings on behalf of their retail funds.
After the transaction, Andy Bell remains the single largest shareholder with a 37 per cent stake.
The remaining 25 per cent continues to be owned by management and employees.
AJ Bell chief executive Andy Bell says: “The Sipp market continues to expand and this transaction is recognition of the fantastic relationship we enjoy with our institutional shareholders.
“The SIPP market needs financially strong players who are willing to innovate. This transaction is a sign of our commitment to continued independence with the support of heavyweight institutional investors.”