AMG Reports Financial and Operating Results for the Fourth Quarter
and Full Year 2010

February 1, 2011
Company Reports Economic EPS of $2.02; EPS of $1.18 for Fourth Quarter,
Economic EPS of $6.09, EPS of $2.81 for Full Year 2010

BOSTON, Feb 01, 2011 (BUSINESS WIRE) --

Affiliated Managers Group, Inc. (NYSE: AMG) today reported its financial and operating results for the fourth quarter and full year 2010.

For the fourth quarter of 2010, Economic Earnings Per Share ("Economic EPS") were $2.02, compared to $1.36 for the same period of 2009, while diluted earnings per share for the fourth quarter of 2010 were $1.18, compared to $0.55 for the same period of 2009. For the fourth quarter of 2010, Economic Net Income was $106.6 million, compared to $60.0 million for the same period of 2009. For the fourth quarter of 2010, Net Income was $62.0 million, compared to $24.6 million for the same period of 2009. (Performance measures Economic Net Income and Economic EPS are defined in the attached tables.)

For the fourth quarter of 2010, revenue was $420.8 million, compared to $244.7 million for the same period of 2009. For the fourth quarter of 2010, EBITDA was $152.1 million, compared to $79.9 million for the same period of 2009.

For the year ended December 31, 2010, Economic Net Income was $299.1 million, while EBITDA was $404.4 million. For the same period, Net Income was $138.6 million, on revenue of $1.4 billion. For the year ended December 31, 2009, Economic Net Income was $185.7 million, while EBITDA was $242.8 million. For the same period, Net Income was $59.5 million, on revenue of $841.8 million.

Net client cash flows for the fourth quarter of 2010 were approximately $4.7 billion, with flows in the institutional, mutual fund, and high net worth channels of approximately $3.2 billion, $0.8 billion, and $0.6 billion, respectively. The aggregate assets under management of AMG's affiliated investment management firms were approximately $320 billion at December 31, 2010.

"AMG's fourth quarter was an outstanding finish to an exceptional year," stated Sean M. Healey, Chairman and Chief Executive Officer of AMG. "Our Economic Earnings Per Share for the fourth quarter were $2.02, an increase of 49% over the same period of 2009, and our assets under management grew 54% over the same period, reflecting the strong investment performance and organic growth of our extant Affiliates as well as investments in four new Affiliates in 2010. We made strong progress across all areas of our global growth strategy during the year, and given our industry-leading offerings in highly attractive product areas, we remain confident in our prospects for continued new business momentum going forward."

"Our Affiliates produced excellent investment performance in the quarter and the year, particularly in global equity and alternative products, which generate over 70% of our EBITDA. Highlights included Harding Loevner's global and international products as well as global equity strategies from Tweedy, Browne, which was nominated for International-Stock Manager of the Year by Morningstar. In addition, the emerging markets strategies from Genesis, Trilogy, and Harding Loevner generated significant outperformance for the year. Finally, a number of our alternative firms contributed material performance fees in 2010, including ValueAct, AQR and BlueMountain, and, together with Pantheon, our alternative managers are well positioned to continue to make a meaningful contribution to our earnings in 2011."

"Our net client cash flows of $4.7 billion in the fourth quarter capped a strong year of organic growth for our Affiliates, against an industry backdrop of improving, but still muted, investor risk appetite," Mr. Healey added. "As institutional and retail investors continue to reallocate to risk assets, we see increasing opportunities to win new business globally. Clients outside the U.S., which already contribute over half of our EBITDA, are particularly attracted to our Affiliates' industry-leading global and emerging markets equity and alternative strategies - and our global distribution effort brings the outstanding products of our return-oriented specialist firms to large institutional clients in Australia, the Middle East, Europe, and Asia. Our platform continues to gain momentum across each of these markets, as sophisticated investors around the world increasingly demand specialized alpha-generating strategies."

Mr. Healey concluded, "We were very pleased with the successful execution of our new investments strategy in 2010, including our investments in Pantheon, Artemis, and Trilogy, which further increased our exposure to outstanding international and emerging markets equity and alternative products. Looking ahead, with our strong competitive position in a favorable transaction environment, and diverse pipeline of prospective Affiliates, we continue to have a substantial opportunity to materially add to our earnings growth through accretive investments in new Affiliates worldwide."

About Affiliated Managers Group

AMG is a global asset management company with equity investments in leading boutique investment management firms. AMG's innovative partnership approach allows each Affiliate's management team to own significant equity in their firm while maintaining operational autonomy. AMG's strategy is to generate growth through the internal growth of existing Affiliates, as well as through investments in new Affiliates. In addition, AMG provides centralized assistance to its Affiliates in strategic matters, marketing, distribution, product development and operations. As of December 31, 2010, the aggregate assets under management of AMG's Affiliates were approximately $320 billion, in more than 350 investment products across a broad range of investment styles, asset classes and distribution channels. For more information, please visit the Company's website at www.amg.com.

Certain matters discussed in this press release may constitute forward-looking statements within the meaning of the federal securities laws.Actual results and the timing of certain events could differ materially from those projected in or contemplated by the forward-looking statements due to a number of factors, including changes in the securities or financial markets or in general economic conditions, the availability of equity and debt financing, competition for acquisitions of interests in investment management firms, the ability to close pending investments, the investment performance of our Affiliates and their ability to effectively market their investment strategies, and other risks detailed from time to time in AMG's filings with the Securities and Exchange Commission.Reference is hereby made to the "Cautionary Statements" set forth in the Company's Form 10-K for the year ended December 31, 2009.

AMG routinely posts information that may be significant for investors in the Investor Information section of its website, and encourages investors to consult that section regularly.For additional information, please visit www.amg.com.

Financial Tables Follow

A teleconference will be held with AMG's management at 11:00 a.m. Eastern time today.Parties interested in listening to the teleconference should dial 1-877-407-9210 (domestic calls) or 1-201-689-8049 (international calls) starting at 10:45 a.m. Eastern time.Those wishing to listen to the teleconference should dial the appropriate number at least ten minutes before the call begins.

The teleconference will also be available for replay beginning approximately one hour after the conclusion of the call.To hear a replay of the call, please dial 1-877-660-6853 (domestic calls) or 1-201-612-7415 (international calls) and provide account number 286 and conference ID 364882.The live call and replay of the session, and additional financial information referenced during the teleconference, can also be accessed via the Web at http://www.amg.com/InvestorRelations.

Affiliated Managers Group, Inc.
Financial Highlights
(dollars in thousands, except per share data)
Three Months
Ended
Three Months
Ended
12/31/09 12/31/10
Revenue $ 244,658 $ 420,768
Net Income (controlling interest) $ 24,600 $ 62,011
Economic Net Income (A) $ 59,957 $ 106,561
EBITDA (B) $ 79,871 $ 152,145
Average shares outstanding - diluted 44,852,911 52,747,453
Earnings per share - diluted $ 0.55 $ 1.18
Average shares outstanding - adjusted diluted (C) 44,145,519 52,747,453
Economic earnings per share (C) $ 1.36 $ 2.02

December 31,
2009

December 31,
2010

Cash and cash equivalents $ 259,487 $ 313,328
Senior bank debt $ - $ 460,000
Senior convertible securities (D) $ 456,976 $ 422,118
Junior convertible trust preferred securities (D) $ 507,358 $ 509,872
Stockholders' equity $ 1,109,690 $ 1,799,963
Affiliated Managers Group, Inc.
Financial Highlights
(dollars in thousands, except per share data)
Year
Ended
Year
Ended
12/31/09 12/31/10
Revenue $ 841,840 $ 1,358,242
Net Income (controlling interest) $ 59,473 $ 138,633
Economic Net Income (A) $ 185,711 $ 299,083
EBITDA (B) $ 242,787 $ 404,391
Average shares outstanding - diluted 43,333,355 49,398,535
Earnings per share - diluted $ 1.38 $ 2.81
Average shares outstanding - adjusted diluted (C) 42,533,898 49,113,690
Economic earnings per share (C) $ 4.37 $ 6.09
Affiliated Managers Group, Inc.
Reconciliations of Earnings Per Share Calculation
(dollars in thousands, except per share data)
Three Months
Ended
Three Months
Ended
12/31/09 12/31/10
Net Income (controlling interest) $ 24,600 $ 62,011
Convertible securities interest expense, net (E) 36 -
Net Income (controlling interest), as adjusted $ 24,636 $ 62,011
Average shares outstanding - diluted 44,852,911 52,747,453
Earnings per share - diluted $ 0.55 $ 1.18
Year
Ended
Year
Ended
12/31/09 12/31/10
Net Income (controlling interest) $ 59,473 $ 138,633
Convertible securities interest expense, net (E) 144 53
Net Income (controlling interest), as adjusted $ 59,617 $ 138,686
Average shares outstanding - diluted 43,333,355 49,398,535
Earnings per share - diluted $ 1.38 $ 2.81
Affiliated Managers Group, Inc.
Reconciliations of Average Shares Outstanding
Three Months
Ended
Three Months
Ended
12/31/09 12/31/10
Average shares outstanding - diluted 44,852,911 52,747,453
Assumed issuance of LYONS shares (873,803 ) -
Assumed issuance of 2008 Senior Convertible Notes shares - -
Assumed issuance of Trust Preferred shares - -
Dilutive impact of LYONS shares 166,411 -
Dilutive impact of 2008 Senior Convertible Notes shares - -
Dilutive impact of Trust Preferred shares - -
Average shares outstanding - adjusted diluted (C) 44,145,519 52,747,453
Year
Ended
Year
Ended
12/31/09 12/31/10
Average shares outstanding - diluted 43,333,355 49,398,535
Assumed issuance of LYONS shares (873,803 ) (383,671 )
Assumed issuance of 2008 Senior Convertible Notes shares - -
Assumed issuance of Trust Preferred shares - -
Dilutive impact of LYONS shares 74,346 98,826
Dilutive impact of 2008 Senior Convertible Notes shares - -
Dilutive impact of Trust Preferred shares - -
Average shares outstanding - adjusted diluted (C) 42,533,898 49,113,690
Affiliated Managers Group, Inc.
Operating Results
(in millions)
Assets Under Management
Statement of Changes - Quarter to Date

Mutual
Fund

Institutional

High Net
Worth

Total
Assets under management, September 30, 2010 $ 74,889 $ 172,422 $ 32,366 $ 279,677
New investments (F) 3,568 11,581 - 15,149
Client cash inflows 6,065 8,983 2,590 17,638
Client cash outflows (5,216 ) (5,755 ) (1,982 ) (12,953 )
Net client cash flows 849 3,228 608 4,685
Investment performance 5,937 12,919 2,169 21,025
Other (G) - - (490 ) (490 )
Assets under management, December 31, 2010 $ 85,243 $ 200,150 $ 34,653 $ 320,046
Statement of Changes - Year to Date

Mutual
Fund

Institutional

High Net
Worth

Total
Assets under management, December 31, 2009 $ 44,531 $ 133,858 $ 29,650 $ 208,039
New investments (F) 26,471 37,641

427

64,539

Client cash inflows 21,368 29,777

7,596

58,741

Client cash outflows (18,466 ) (24,224 ) (6,686 ) (49,376 )
Net client cash flows 2,902 5,553

910

9,365

Investment performance 9,765 25,415 4,156 39,336
Other (G) 1,574 (2,317 ) (490 ) (1,233 )
Assets under management, December 31, 2010 $ 85,243 $ 200,150 $ 34,653 $ 320,046
Affiliated Managers Group, Inc.
Operating Results
(in thousands)
Financial Results
Three
Months
Ended
Percent Three
Months
Ended
Percent
12/31/09 of Total 12/31/10 of Total
Revenue
Mutual Fund $ 91,798 37 % $ 181,055 43 %
Institutional 121,957 50 % 204,141 49 %
High Net Worth 30,903 13 % 35,572 8 %
$ 244,658 100 % $ 420,768 100 %
EBITDA (B)
Mutual Fund $ 26,790 34 % $ 40,108 26 %
Institutional 42,313 53 % 97,314 64 %
High Net Worth 10,768 13 % 14,723 10 %
$ 79,871 100 % $ 152,145 100 %
Year
Ended
Percent Year
Ended
Percent
12/31/09 of Total 12/31/10 of Total
Revenue
Mutual Fund $ 313,177 37 % $ 578,790 43 %
Institutional 415,605 49 % 649,205 48 %
High Net Worth 113,058 14 % 130,247 9 %
$ 841,840 100 % $ 1,358,242 100 %
EBITDA (B)
Mutual Fund $ 70,570 29 % $ 119,364 29 %
Institutional 139,671 58 % 242,331 60 %
High Net Worth 32,546 13 % 42,696 11 %
$ 242,787 100 % $ 404,391 100 %
Affiliated Managers Group, Inc.
Reconciliations of Performance and Liquidity Measures
(in thousands)
Three Months
Ended
Three Months
Ended
12/31/09 12/31/10
Net Income (controlling interest) $ 24,600 $ 62,011
Intangible amortization 16,317 26,200
Intangible-related deferred taxes 13,256 12,595
Imputed interest and contingent payment adjustments 2,076 3,969
Affiliate equity expense 1,774 1,786
Affiliate depreciation 1,934 -
Economic Net Income (A) $ 59,957 $ 106,561
Cash flow from operations $ 75,142 $ 129,219
Interest expense, net of non-cash items 14,140 15,469
Current tax provision 8,407 26,344
Income from equity method investments, net of distributions 4,793 42,669
Changes in assets and liabilities and other adjustments (22,611 ) (61,556 )
EBITDA (B) $ 79,871 $ 152,145
Holding company expenses 14,878 23,085
EBITDA Contribution $ 94,749 $ 175,230
Year
Ended
Year
Ended
12/31/09 12/31/10
Net Income (controlling interest) $ 59,473 $ 138,633
Intangible amortization 64,437 85,860
Intangible-related deferred taxes 38,552 47,465
Imputed interest and contingent payment adjustments 8,253 13,223
Affiliate equity expense 7,248 7,102
Affiliate depreciation 7,748 6,800
Economic Net Income (A) $ 185,711 $ 299,083
Cash flow from operations $ 243,210 $

480,699

Interest expense, net of non-cash items 57,039

58,481

Current tax provision (701 ) 42,127
Income from equity method investments, net of distributions 8,087 43,911
Changes in assets and liabilities and other adjustments (64,848 )

(220,827

)
EBITDA (B) $ 242,787 $ 404,391
Holding company expenses 47,352 84,816
EBITDA Contribution $ 290,139 $ 489,207
Affiliated Managers Group, Inc.
Consolidated Statements of Income
(dollars in thousands, except per share data)
Three Months Ended Year Ended
December 31, December 31,
2009 2010 2009 2010
Revenue $ 244,658 $ 420,768 $ 841,840 $ 1,358,242
Operating expenses:

Compensation and related

expenses

109,814 180,984 402,584 594,486
Selling, general and administrative 37,505 93,853 126,781 284,595
Amortization of intangible assets 8,508 21,020 32,939 60,066
Depreciation and other amortization 3,096 3,959 12,745 14,076
Other operating expenses 5,594 6,879 26,945 30,987
164,517 306,695 601,994 984,210
Operating income 80,141 114,073 239,846 374,032
Non-operating (income) and expenses:
Investment and other income (11,338 ) (7,977 ) (24,902 ) (22,905 )

Income from equity method

investments

(9,662 ) (49,001 ) (31,632 ) (77,544 )

Investment (income) loss from

Affiliate investments in partnerships (H)

(1,359 ) - (27,425 ) 4,493
Interest expense 16,045 17,428 64,600 66,178
Imputed interest expense 3,403 7,656 13,529 24,959
(2,911 ) (31,894 ) (5,830 ) (4,819 )
Income before income taxes 83,052 145,967 245,676 378,851
Income taxes (I) 17,485 38,646 32,760 91,523
Net income 65,567 107,321 212,916 287,328
Net income (non-controlling interests) (39,756 ) (45,310 ) (126,764 ) (153,080 )

Net (income) loss (non-controlling

interests in partnerships) (H)

(1,211 ) - (26,679 ) 4,385
Net Income (controlling interest) $ 24,600 $ 62,011 $ 59,473 $ 138,633
Average shares outstanding - basic 42,185,181 51,508,418 41,385,359 47,428,846
Average shares outstanding - diluted 44,852,911 52,747,453 43,333,355 49,398,535
Earnings per share - basic $ 0.58 $ 1.20 $ 1.44 $ 2.92
Earnings per share - diluted $ 0.55 $ 1.18 $ 1.38 $ 2.81
Affiliated Managers Group, Inc.
Consolidated Balance Sheets
(in thousands)
December 31, December 31,
2009 2010
Assets
Current assets:
Cash and cash equivalents $ 259,487 $ 313,328
Investment advisory fees receivable 140,118 236,411
Investments in partnerships (H) 93,809 -
Investments in marketable securities 56,690 115,965
Unsettled fund share receivables - 41,971
Prepaid expenses and other current assets 35,478 61,755
Total current assets 585,582 769,430
Fixed assets, net 62,402 67,725
Equity investments in Affiliates 658,332 678,931
Acquired client relationships, net 571,573 1,424,165
Goodwill 1,413,217 2,131,143
Other assets 99,800 219,821
Total assets $ 3,390,906 $ 5,291,215
Liabilities and Stockholders' Equity
Current liabilities:
Accounts payable and accrued liabilities $ 117,227 $ 252,820
Unsettled fund share payables - 39,845
Payables to related party 109,888 114,792
Total current liabilities 227,115 407,457
Senior bank debt - 460,000
Senior convertible securities (D) 456,976 422,118
Junior convertible trust preferred securities (D) 507,358 509,872
Deferred income taxes 322,671 495,349
Other long-term liabilities 26,066 207,825
Total liabilities 1,540,186 2,502,621
Redeemable non-controlling interests 368,999 406,292
Equity:
Common stock 458 539
Additional paid-in capital 612,091 980,469
Accumulated other comprehensive income 45,958 100,464
Retained earnings 873,137 1,011,770
1,531,644 2,093,242
Less treasury stock, at cost (421,954 ) (293,279 )
Total stockholders' equity 1,109,690 1,799,963
Non-controlling interests 281,946 582,339
Non-controlling interests in partnerships (H) 90,085 -
Total equity 1,481,721 2,382,302
Total liabilities and equity $ 3,390,906 $ 5,291,215
Affiliated Managers Group, Inc.
Consolidated Statements of Cash Flow
(in thousands)
Three Months Ended
December 31,
Year Ended
December 31,
2009 2010 2009 2010
Cash flow from operating activities:
Net income $ 65,567 $ 107,321 $ 212,916 $ 287,328

Adjustments to reconcile Net income to net

cash flow from operating activities:

Amortization of intangible assets 8,508 21,020 32,939 60,066
Amortization of issuance costs 1,846 1,959 7,325 7,612
Depreciation and other amortization 3,096 3,959 12,745 14,076
Deferred income tax provision 8,003 11,122 28,704 35,420
Imputed interest expense 3,403 7,656 13,529 24,959

Income from equity method investments, net

of amortization

(9,662 ) (49,001 ) (31,632 ) (77,544 )

Distributions received from equity method

investments

12,908 14,336 55,453 65,756
Tax benefit from exercise of stock options 1,086 986 4,260 4,464
Share-based compensation 2,909 9,119 8,604 19,530
Affiliate equity expense 3,349 4,208 13,218 14,519
Other adjustments (9,481 ) (527 ) (42,606 ) 8,494
Changes in assets and liabilities:

Increase in investment advisory fees

receivable

(7,396 ) (37,143 ) (6,552 )

(49,195

)

(Increase) decrease in Affiliate investments in

partnerships

(46 ) - 285

(503

)

(Increase) decrease in prepaids and other

current assets

1,635 (2,400 ) (8,389 ) (2,912 )
(Increase) decrease in other assets 446 8,478 3,315

(1,301

)
Decrease in unsettled fund shares receivable - 14,698 -

14,125

Decrease in unsettled fund shares

payable

- (14,097 ) - (10,578 )

Increase (decrease) in accounts payable,

accrued liabilities and other long-term liabilities

(11,029 ) 27,525 (60,904 )

66,383

Cash flow from operating activities 75,142 129,219 243,210 480,699
Cash flow used in investing activities:
Investments in Affiliates

-

(112,127 )

(139,271

) (916,143 )
Purchase of fixed assets (913 ) (3,447 ) (2,566 ) (8,762 )
Purchase of investment securities

(35,987

)

(20,763 )

(47,733

) (63,967 )
Sale of investment securities 766 3,289 8,069 15,073
Cash flow used in investing activities (36,134 ) (133,048 ) (181,501 ) (973,799 )
Cash flow from (used in) financing activities:
Borrowings of senior bank debt 142,000 169,000 142,000 1,191,500
Repayments of senior bank debt (142,000 ) (80,000 ) (375,514 ) (731,500 )
Issuance of common stock 7,365 10,321 37,125 46,376
Issuance costs (135 ) (605 ) (1,344 ) (935 )

Excess tax benefit from exercise of stock

options

3,703 3,439 7,539 10,103
Settlement of forward equity sale agreement - - 144,258 294,657
Note payments 466 2,948 3,184

(28,836

)
Distributions to non-controlling interests (17,468 ) (23,603 ) (119,555 ) (101,049 )
Affiliate equity issuances and repurchases 775 (19,652 ) (39,534 )

(135,775

)

Subscriptions (redemptions) of Non-

controlling interests in partnerships

46 - (425 ) 503

Cash flow from (used in) financing

activities

(5,248 ) 61,848 (202,266 ) 545,044

Effect of foreign exchange rate changes on

cash and cash equivalents

477 (143 ) 3,613 1,897

Net increase (decrease) in cash and cash

equivalents

34,237 57,876 (136,944 ) 53,841

Cash and cash equivalents at beginning of

period

225,250 255,452 396,431 259,487
Cash and cash equivalents at end of period $ 259,487 $ 313,328 $ 259,487 $ 313,328
Affiliated Managers Group, Inc.
Notes
(in thousands)
(A)

Under our Economic Net Income definition, we add to Net Income (controlling interest) amortization (including equity method amortization), deferred taxes related to intangible assets and Affiliate equity expense, and exclude the non-cash effect of imputed interest expense (principally APB 14-1 interest on convertible securities and non-cash expenses related to contingent payment arrangements). We consider Economic Net Income an important measure of our financial performance, as we believe it best represents operating performance before non-cash expenses relating to the acquisition of interests in our affiliated investment management firms, and it is therefore employed as our principal performance benchmark. This non-GAAP performance measure is provided in addition to, but not as a substitute for, Net Income; Economic Net Income is not a liquidity measure, and should not be used in place of liquidity measures calculated under GAAP.

We add back amortization attributable to acquired client relationships because this expense does not correspond to the changes in value of these assets, which do not diminish predictably over time. The portion of deferred taxes generally attributable to intangible assets (including goodwill) that are no longer amortized but continue to generate tax deductions is added back because we believe it is unlikely these accruals will be used to settle material tax obligations. We add back non-cash expenses relating to certain transfers of equity between Affiliate management partners when these transfers have no dilutive effect to shareholders.

In the first quarter of 2010, we modified our Economic Net Income definition to exclude non-cash imputed interest and revaluation adjustments related to contingent payment arrangements from Net Income (controlling interest), and in the fourth quarter of 2010 we further modified the definition to no longer add back Affiliate depreciation to Net Income (controlling interest). If we had applied these definition changes to our results in the fourth quarter of 2009, Economic earnings per share for the three months and year ended December 31, 2009 would have been $1.14 and $4.14, respectively.

(B)

EBITDA is defined as earnings before interest expense, income taxes, depreciation and amortization. This supplemental non-GAAP liquidity measure is provided in addition to, but not as a substitute for, cash flow from operations. As a measure of liquidity, we believe EBITDA is useful as an indicator of our ability to service debt, make new investments and meet working capital requirements. EBITDA, as calculated by us, may not be consistent with computations of EBITDA by other companies. In reporting EBITDA by segment, Affiliate expenses are allocated to a particular segment on a pro rata basis with respect to the revenue generated by that Affiliate in such segment.

(C)

Economic earnings per share represents Economic Net Income divided by the adjusted diluted average shares outstanding. In this calculation, the potential share issuance in connection with our convertible securities is measured using a "treasury stock" method. Under this method, only the net number of shares of common stock equal to the value of the contingently convertible securities and the junior convertible trust preferred securities in excess of par, if any, are deemed to be outstanding. We believe the inclusion of net shares under a treasury stock method best reflects the benefit of the increase in available capital resources (which could be used to repurchase shares of common stock) that occurs when these securities are converted and we are relieved of our debt obligation. This method does not take into account any increase or decrease in our cost of capital in an assumed conversion. Economic earnings per share is not a liquidity measure, and should not be used in place of liquidity measures calculated under GAAP.

(D)

We have bifurcated our convertible debt securities into their debt and equity components on our balance sheet. The principal amount at maturity of the senior convertible notes due 2038 was $460,000 at December 31, 2009 and December 31, 2010. The principal amount at maturity of the junior convertible trust preferred securities was $730,820 at December 31, 2009 and December 31, 2010.

(E)

Convertible securities interest expense, net, includes the interest expense, net of tax, associated with our dilutive convertible securities.

(F)

We completed our investment in Artemis Investment Management during the first quarter of 2010; we completed our investments in Pantheon and Aston Asset Management during the second quarter of 2010; and we completed our investment in Trilogy Global Advisors in the fourth quarter of 2010.

(G)

Other includes assets under management attributable to Affiliate product transitions and transfers of our interests in certain Affiliated investment management firms, the financial effects of which are not material to our ongoing results.

(H)

At December 31, 2009, assets of consolidated investment partnerships are reported as Investments in partnerships. A majority of these assets are held by investors that are unrelated to us, and reported as Non-controlling interests in partnerships. Income from these partnerships is presented as Investment (income) loss from Affiliate investments in partnerships in the Consolidated Statements of Income. In the third quarter of 2010 we deconsolidated these partnerships.

(I)

Our consolidated income tax provision includes taxes attributable to controlling interests, and to a lesser extent, taxes attributable to non-controlling interests, as follows:

Three Months Ended Year Ended
December 31, December 31,
2009 2010 2009 2010
Current income taxes $ 8,407 $ 26,344 $ (701 ) $ 42,127
Intangible-related deferred taxes 13,256 12,595 38,552 47,465
Other deferred taxes (5,253 ) (898 ) (9,848 ) (9,255 )
Taxes attributable to controlling interests 16,410 38,041 28,003 80,337
Taxes attributable to non-controlling interests 1,075 605 4,757 11,186
Total income taxes $ 17,485 $ 38,646 $ 32,760 $ 91,523
Effective tax rate* 40.0 % 38.0 % 32.0 % 36.8 %
* Taxes attributable to controlling interests divided by our share of the consolidated income before taxes.

SOURCE: Affiliated Managers Group, Inc.

Affiliated Managers Group, Inc.
Investor Relations:
Alexandra Lynn
(617) 747-3300
ir@amg.com
or
Media Relations:
Laura O'Brien
(617) 747-3300
pr@amg.com