<SEC-DOCUMENT>0001104659-14-007257.txt : 20140207
<SEC-HEADER>0001104659-14-007257.hdr.sgml : 20140207
<ACCEPTANCE-DATETIME>20140206200016
ACCESSION NUMBER:		0001104659-14-007257
CONFORMED SUBMISSION TYPE:	FWP
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20140207
DATE AS OF CHANGE:		20140206

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AFFILIATED MANAGERS GROUP, INC.
		CENTRAL INDEX KEY:			0001004434
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		IRS NUMBER:				043218510
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		FWP
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	333-190402
		FILM NUMBER:		14581553

	BUSINESS ADDRESS:	
		STREET 1:		600 HALE STREET
		STREET 2:		P.O. BOX 1000
		CITY:			PRIDES CROSSING
		STATE:			MA
		ZIP:			01965
		BUSINESS PHONE:		6177473300

	MAIL ADDRESS:	
		STREET 1:		600 HALE STREET
		STREET 2:		P.O. BOX 1000
		CITY:			PRIDES CROSSING
		STATE:			MA
		ZIP:			01965

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AFFILIATED MANAGERS GROUP INC
		DATE OF NAME CHANGE:	19970822

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AFFILIATED MANAGERS GROUP, INC.
		CENTRAL INDEX KEY:			0001004434
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		IRS NUMBER:				043218510
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		FWP

	BUSINESS ADDRESS:	
		STREET 1:		600 HALE STREET
		STREET 2:		P.O. BOX 1000
		CITY:			PRIDES CROSSING
		STATE:			MA
		ZIP:			01965
		BUSINESS PHONE:		6177473300

	MAIL ADDRESS:	
		STREET 1:		600 HALE STREET
		STREET 2:		P.O. BOX 1000
		CITY:			PRIDES CROSSING
		STATE:			MA
		ZIP:			01965

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AFFILIATED MANAGERS GROUP INC
		DATE OF NAME CHANGE:	19970822
</SEC-HEADER>
<DOCUMENT>
<TYPE>FWP
<SEQUENCE>1
<FILENAME>a14-4341_4fwp.htm
<DESCRIPTION>FWP
<TEXT>


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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="64%" valign="top" style="padding:0in 0in 0in 0in;width:64.44%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Issuer   Free Writing Prospectus dated February 6, 2014</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="64%" valign="top" style="padding:0in 0in 0in 0in;width:64.44%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Filed   Pursuant to Rule&nbsp;433</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="64%" valign="top" style="padding:0in 0in 0in 0in;width:64.44%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Registration   Statement No.&nbsp;333-190402</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="64%" valign="top" style="padding:0in 0in 0in 0in;width:64.44%;">
<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(Relating   to Preliminary Prospectus Supplement dated February&nbsp;6, 2014)</font></b></p>    </td>   </tr>  </table>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Affiliated Managers Group,&nbsp;Inc.</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$400,000,000</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.250% Senior Notes due February&nbsp;15, 2024</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Term Sheet</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">February&nbsp;6, 2014</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt 11.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The following information relates only to Affiliated Managers Group,&nbsp;Inc.&#146;s offering (the &#147;Offering&#148;) of its 4.250% Senior Notes due February&nbsp;15, 2024 and should be read together with the preliminary prospectus supplement dated February&nbsp;6, 2014 relating to this Offering and the accompanying prospectus dated August&nbsp;6, 2013, including the documents incorporated by reference therein.</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Issuer:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Affiliated   Managers Group,&nbsp;Inc. (NYSE: AMG)</font></p>    </td>   </tr>
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<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title   of Security:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.250%   Senior Notes due February&nbsp;15, 2024 (the &#147;Notes&#148;)</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Type   of Offering:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">SEC   Registered</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Principal   Amount:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$400,000,000</font></p>    </td>   </tr>
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<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Expected   Ratings (S&amp;P / Fitch)*:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">BBB   (Outlook Positive) / BBB (Outlook Stable)</font></p>    </td>   </tr>
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<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Trade   Date:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">February&nbsp;6,   2014</font></p>    </td>   </tr>
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<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Settlement   Date (T+3):</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">February&nbsp;11,   2014</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Maturity   Date:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">February&nbsp;15,   2024</font></p>    </td>   </tr>
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<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Minimum   Denomination /</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Multiples:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$2,000   and in integral multiples of $1,000 in excess thereof</font></p>    </td>   </tr>
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<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Interest   Payment Dates:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">February&nbsp;15   and August&nbsp;15</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">First   Interest Payment Date:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">August&nbsp;15,   2014 (long first coupon)</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Change   of Control Repurchase:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">At   101% of principal plus accrued and unpaid interest if issuer subject to a   Change of Control Repurchase Event.</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Optional   Redemption:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">At   any time prior to the Maturity Date, in whole or in part, at a redemption   price equal to the greater of (1)&nbsp;100% of the principal amount of the   notes being redeemed and (2)&nbsp;the remaining principal and interest   payments on the notes being redeemed (excluding accrued and unpaid interest)   discounted to their present value as of the redemption date at the applicable   Treasury Rate plus 25 bps, plus accrued and unpaid interest</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Treasury   Benchmark:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2.750%   UST due November&nbsp;15, 2023</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Treasury   Yield:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2.708%</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Spread   to Benchmark:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">+165   bps</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Reoffer   Yield:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.358%</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Coupon:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">4.250%</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Issue   Price:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.131%   of face amount</font></p>    </td>   </tr>
<tr>
<td width="27%" valign="top" style="padding:0in 0in 0in 0in;width:27.78%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Day   Count:</font></p>    </td>
<td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.22%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">30   / 360</font></p>    </td>   </tr>
<tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Proceeds,   Before Expenses:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">$393,924,000</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Use   of Proceeds:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="70%" valign="top" style="padding:0in 0in 0in 0in;width:70.0%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The   issuer intends to use a portion of the net proceeds of this offering to repay   a portion of currently outstanding indebtedness under its revolving credit   facility and the remaining portion for other general corporate purposes.</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">CUSIP   / ISIN:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">008252AM0   / US008252AM02</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt 9.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Joint Book-Running Managers:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Merrill   Lynch, Pierce, Fenner&nbsp;&amp; Smith</font></p>
<p style="margin:0in 0in .0001pt;text-indent:51.85pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Incorporated</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Citigroup Global Markets Inc.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">J.P. Morgan Securities LLC</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 9.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 9.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Co-Managers:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Barrington   Research Associates,&nbsp;Inc.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">BMO   Capital Markets Corp.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Deutsche   Bank Securities Inc.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Mitsubishi   UFJ Securities (USA),&nbsp;Inc.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">RBC   Capital Markets, LLC</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">RBS   Securities Inc.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Scotia   Capital (USA) Inc.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The   Huntington Investment Company</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">U.S.   Bancorp Investments,&nbsp;Inc.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Wells   Fargo Securities, LLC</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<div style="margin:0in 0in .0001pt;"><hr size="1" width="25%" noshade color="black" align="left"></div>
<p style="margin:0in 0in .0001pt 20.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">* A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time</font></b></p>
<p style="margin:0in 0in .0001pt 20.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt 20.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">The issuer has filed a registration statement, including a preliminary prospectus supplement and accompanying prospectus, with the SEC for the offering to which this communication relates. Before you invest, you should read the registration statement, including the preliminary prospectus supplement and the accompanying prospectus, and other documents the issuer has filed with the SEC for more complete information about the issuer and this Offering. You may get these documents for free by visiting EDGAR on the SEC Web site at www.sec.gov. Alternatively, the issuer, any underwriter or any dealer participating in the offering will arrange to send you the prospectus if you request it by calling Merrill Lynch, Pierce, Fenner&nbsp;&amp; Smith Incorporated toll-free at 1-800-294-1322, Citigroup Global Markets Inc. at 1-800-831-9146 and J.P. Morgan Securities LLC at collect at 212-834-4533.</font></b></p>
<p style="margin:0in 0in .0001pt 20.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt 20.0pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">This pricing term sheet supplements and updates the information contained in the preliminary prospectus supplement issued by Affiliated Managers Group,&nbsp;Inc. on February&nbsp;6, 2014 relating to its prospectus dated August&nbsp;6, 2013.</font></b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">2<a name="PB_2_020724_141"></a></font></p>
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