Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:

Man Group plc

2 Reason for the notification (please tick the appropriate box or boxes):

An acquisition or disposal of voting rights

X

An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to the notification obligation:

TIAA-CREF Investment Management, LLC on behalf of the accounts listed in Exhibit B

Teachers Advisors, Inc. on behalf of the funds listed in Exhibit C

4. Full name of shareholder(s) (if different from 3.):

See Number 3

5. Date of the transaction and date on which the threshold is crossed or reached:

15 May 2015

6. Date on which issuer notified:

19 May 2015

7. Threshold(s) that is/are crossed or reached:

4%

8. Notified details:

A: Voting rights attached to shares

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights

Direct

Direct

Indirect

Direct

Indirect

 GB00B83VD954

68,760,205

68,760,205

67,914,843

67,914,843

0

3.997%

0%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate

Exercise/ConversionPeriod

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

 N/A

N/A

N/A

N/A

N/A

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Exerciseprice

Expirationdate

Exercise/Conversionperiod

Number of votingrights instrumentrefers to

% of voting rights

 N/A

N/A

N/A

N/A

N/A

Nominal

Delta

 N/A

N/A

Total (A+B+C)

Number of voting rights

Percentage of voting rights

67,914,843

3.997%

9. Chain of controlled undertakings through which the voting rights and/or thefinancial instruments are effectively held, if applicable:

The College Retirement Equities Fund ("CREF") hereby informs you as of May 15, 2015 it holds 32,393,998 shares of Man Group plc. CREF owns these shares through two of its investment accounts, the Global Equities Account and Stock Account. It is our understanding the total voting shares outstanding of Man Group Plc is 1,699,085,439 bringing CREF's ownership in your company to a 1.907% level.

For your information, CREF is a U.S. based investment company, which is registered with the Securities and Exchange Commission ("SEC"). CREF has multiple investment accounts, each with separate investment objectives and policies. All assets in the accounts are beneficially owned by CREF, and all the accounts are managed by TIAA-CREF Investment Management, LLC, an SEC registered investment adviser.

Additionally, affiliates of CREF on May 15, 2015 sold 845,362 shares bringing the total owned to 35,520,845 shares of Man Group plc. These holdings are owned by the TIAA-CREF Funds ("Funds"), and the TIAA-CREF Life Funds ("Life Funds"), each of which are SEC registered investment companies. The Funds and Life Funds are managed by Teachers Advisors, Inc., an SEC registered investment adviser that is affiliated with TIAA-CREF Investment Management, LLC. These affiliated funds, aggregated with those of CREF, own a total of 67,914,843 or 3.997% of the outstanding voting shares of your company. Because Teachers Advisors, Inc. and TIAA-CREF Investment Management, LLC follow the same policies when voting these funds, we are aggregating the holdings for purposes of this letter.

(See Exhibit A)

Proxy Voting:

10. Name of the proxy holder:

TIAA-CREF Investment Management, LLC /Teachers Advisors, Inc.

11. Number of voting rights proxy holder will cease to hold:

N/A

12. Date on which proxy holder will cease to hold voting rights:

N/A

13. Additional information:

 N/A

14. Contact name:

 Rachel Rowson

15. Contact telephone number:

020 7144 1732

TIAA-CREF Investment Management LLC ("CREF")

Teachers Advisors, Inc.

Aggregate Holding

Global Equities Account

Stock Account

Total CREF Holdings

Total CREF %

TIAA-CREF International Equity Fund

TIAA-CREF Life International Equity Fund

TIAA-CREF International Opportunities Fund

Total Mutual Funds Holdings

Total Mutual Funds %

Total Holdings

Total %

Holdings as of May 14, 2015

6,800,024

25,593,974

32,393,998

1.907%

31,380,621

654,642

4,330,944

36,366,207

2.140%

68,760,205

4.047%

Transactions as of May 15, 2015

-

-

-

0.000%

(845,362)

-

-

(845,362)

-0.05%

(845,362)

-0.05%

Holdings as of May 15, 2015

6,800,024

25,593,974

32,393,998

1.907%

30,535,259

654,642

4,330,944

35,520,845

2.091%

67,914,843

3.997%