AFFILIATED MANAGERS GROUP, INC. - AMG

Ownership (Schedule 13D / 13G) · latest 50 filings · Back to all files
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Filed Form Reporting person Percent Shares SEC
Mar 26, 2026 SCHEDULE 13G/A The Vanguard Group 0.0% 0 View
Mar 05, 2026 SCHEDULE 13G/A The Vanguard Group 10.2% 2,723,566 View
Feb 13, 2026 SCHEDULE 13G/A Clarkston Capital Partners, LLC 3.21% 904,119 View
Feb 13, 2026 SCHEDULE 13G/A Clarkston Companies, Inc. 3.21% 904,119 View
Feb 13, 2026 SCHEDULE 13G/A Modell Capital LLC 3.21% 904,119 View
Feb 13, 2026 SCHEDULE 13G/A Jeffrey A. Hakala 3.21% 904,119 View
Feb 13, 2026 SCHEDULE 13G/A Gerald W. Hakala 3.21% 904,119 View
Feb 13, 2026 SCHEDULE 13G/A Jeremy J. Modell 3.21% 904,119 View
Nov 07, 2025 SCHEDULE 13G/A Morgan Stanley 7.0% 1,983,387 View
Nov 07, 2025 SCHEDULE 13G/A Atlanta Capital Management Company, LLC 6.3% 1,778,903 View
Nov 07, 2025 SCHEDULE 13G/A Eaton Vance Atlanta Capital SMID-Cap Fund 4.5% 1,276,051 View
Oct 30, 2025 SCHEDULE 13G/A Integrated Core Strategies (US) LLC 3.4% 974,596 View
Oct 30, 2025 SCHEDULE 13G/A Millennium Management LLC 3.6% 1,017,113 View
Oct 30, 2025 SCHEDULE 13G/A Millennium Group Management LLC 3.6% 1,017,113 View
Oct 30, 2025 SCHEDULE 13G/A Israel A. Englander 3.6% 1,017,113 View
Oct 30, 2025 SCHEDULE 13G/A The Vanguard Group 9.75% 2,771,811 View
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G. Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F). Amendments (/A) can repeat the same holder over time, so rows should not be summed. Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.