Here are the 424B prospectus supplements from Affiliated Managers Group (AMG) in our archive over the last 12 months, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 424B covers the supplement that carries the terms of a priced offering, so if you follow AMG and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full AMG filings page.
Affiliated Managers Group, Inc. is issuing $425,000,000 of 5.500% senior notes due February 15, 2036. The notes are unsecured, unsubordinated obligations that rank equally with AMG’s other senior debt and are structurally subordinated to liabilities of its subsidiaries. Interest is paid semi‑annually on February 15 and August 15, starting August 15, 2026, with minimum denominations of $2,000.
The notes are offered at 99.828% of principal, with a 0.650% underwriting discount, providing gross proceeds to AMG of $421,506,500 and estimated net proceeds of $420.4 million after expenses. AMG plans to use the net proceeds primarily to redeem in full its outstanding Trust Preferred Securities and to settle related obligations in cash, with any remaining funds available for general corporate purposes. The notes are redeemable at AMG’s option, include a change‑of‑control repurchase feature, and are not expected to be listed on any securities exchange.
Affiliated Managers Group, Inc. is issuing new senior unsecured notes in a registered public offering. The notes will be general, unsubordinated obligations of AMG and will rank equally with its existing senior debt, while being effectively junior to any secured borrowings and structurally subordinated to liabilities of its subsidiaries.
AMG expects to use the net proceeds to redeem in full and settle its outstanding Trust Preferred Securities in cash, with any remaining funds used for general corporate purposes. As of September 30, 2025, AMG reported aggregate assets under management of approximately $804 billion, or about $855 billion on a pro forma basis after recent and pending affiliate transactions, and total indebtedness of $2,371.6 million, providing context for the company’s overall capital structure as it adds this new series of notes.