By CapitalSnitch Research Desk · updated Oct 11, 2026 · data from SEC filings and official Congress disclosures
Over 12 months, Affiliated Managers Group, Inc. saw more selling than buying from its insiders — purchases of about $687,000 against sales of $10.2 million.
The largest purchase came from Cates G. Staley (Director), about $459,000.
Looking at the quarterly pattern: No open-market insider buying or selling in the last full quarter. Insiders bought in 1 of the last 7 full quarters. On the institutional side, 564 funds reported holding AMG at the end of Q2 2026, and funds were split between buying and selling.
Are insiders buying or selling AMG stock?
In the last 12 months Affiliated Managers Group, Inc. insiders made open-market purchases worth about $687,000 and sales worth about $10.2 million. Data comes from SEC Form 4 filings, updated every 30 minutes on CapitalSnitch.
When was the last insider trade in AMG?
The most recent open-market insider trade in AMG was filed on 2026-06-08.
How many institutions own AMG?
564 investment managers reported holding AMG in SEC Form 13F filings for Q2 2026.
Has any member of Congress traded AMG?
No congressional trades in AMG were reported in the past two years. The full list is free on CapitalSnitch.
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Public-record data for research and education, not investment advice. Insider sales are often pre-planned (10b5-1).
Congress data: Data derived from public disclosures filed under the Ethics in Government Act and the STOCK Act, republished free for public transparency and news reporting. Disclosures may lag the trade by 45 days or more and show amounts only as ranges. This data may not be used for credit rating, loan underwriting, solicitation of money (political, charitable or other), direct-mail or commercial targeting (5 U.S.C. 13107).