Great Lakes Advisors LLC reduced its position in Affiliated Managers Group by 3.4% in the first quarter, selling 3,717 shares. The firm now holds 106,270 shares in the asset manager, according to a recent regulatory filing.
Great Lakes Advisors LLC Sells 3,717 Shares of Affiliated Managers Group, Inc. $AMG

Key Takeaways:
- Great Lakes Advisors LLC sold 3,717 shares of Affiliated Managers Group
- The move amounted to a 3.4% reduction in its holdings
- The investment firm now possesses 106,270 shares
- This action was reported in a Form 13F filing with the SEC
- The Lincolnian Online originally published the story on September 9, 2025
Background on the Stake
Great Lakes Advisors LLC, an established investment management firm, recently disclosed changes to its holdings in Affiliated Managers Group (NYSE: AMG). This update appeared in the firm’s latest Form 13F filing with the Securities and Exchange Commission, emphasizing regulatory transparency in its financial reporting.
The 3.4% Reduction
According to the filing, Great Lakes Advisors trimmed its position in AMG by 3.4% during the first quarter of the year. This reduction involved selling 3,717 shares, leaving the firm with a remaining stake of 106,270 shares in the asset manager.
Regulatory Filings and Transparency
The sale was officially noted through the company’s Form 13F filing, a routine disclosure that details major changes to institutional investment portfolios. While the firm has not publicly commented on the specific reasons for this adjustment, the filing underscores the importance of regulatory oversight in maintaining transparency across financial markets.
Broader Context for Investors
While the information offered in the filing captures only a snapshot of the firm’s trading activities, such transactions often reflect estimated risk assessments or shifting portfolio strategies. Investors frequently monitor these disclosures to gauge institutional sentiment in the broader financial landscape.