UCB — Major Shareholding Notification 2012

Jan 27, 2012

1) Status of the notification
	IFinal
2) Issuer

IdenUfication number~03-053-608	N~'IU::'C~B~~~===========j

3) Reason for the notification

An acquisition or disposal of voting securities or voting rights
Downward crossing of the lowest threshold

I

a

4) Notification by

A person on whose acrount a third party acts in his own name and who notifies together with this third party

5) Persons subject to the notification requirement

Nco"'e (& legal form for legal p,~rs()ns)		II
Wellington Management Company, LLP	280 Congress Street, Boston, MA 02210

6) Persons that dispose of, ... voting rights (Only to be filled in if art. 7 of the Law applies)

	Name 1& le~I~llo,-m fN Icgi!l perSOIlS)	Add,-ess ([G,legal persons)
	Please continue enterin the information in art II concernin the	ersons referred to in aints 5 and	II
7) Date on which the threshold is crossed
	12310112012	(DDIMMIYYYY)
8) Threshold that is crossed (in %)
	If the holding has fallen below the lowest threshold yOli have the option of not filling In point 10
9) Denominator
	183,365,052[

Please enter the denominator before filling in the data

10) Notified details

A) Voting rights	Previous notification	After the transaction
	#ofvotin ri hls	#ofvoti ri hls		%ofvoti ri hls
Holders of voting rights		Linked to securities	~tothe securities	Linked to secUlities	- Not linked to the
Wellington Management Company, LLP	5,505,950	5,359,712		2.92%
	TOTAL	5,359,712	,	2.92%	0.00%

a.

a

Start with "aroups" of holders. Calculate subtotals and then finish with Ihe persons who are ftalone",

The totals subtotals and %will be updated once you have clicked on

B) Equivalent financial instruments	After the transaction
Holders of equivalent financial Instruments	Type of financial instrument	Expiration date	ExerCise period 01' date	# of voting rights thai may be acquired if the instrument is exercised	%of voting rights
	TOTAL		(In laIIon 10.11 .xplndl<>n datu)	,	0.00%

The totals will be updated once you have clicked on

TOTAL (Votlng rights & Equivalent financial instruments)	#of voting rights	%of voting rights
	5,359,712	2.92%

11) Chain of controlled undertakings.lhrough which the holding is effectively held, if applicable

Please describe or join a diagram In attachment

Wellington ManagementCompany, LLP is an inveslmentadviser having the ability to exerCise the voting rights at its discretion in the absence of specific instructions from the Accounts.

12} In case of proxy voting for only one GM

Holder [ Will cease to hold ^I [ ,[ will hold again ---------' ---- voting rights as of

13) Additional information

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	A) Convertible bondS and rights to subscribe to vo~ng securities not yet issued
Holder	Type of financial instrument	Expiratioo date (DDIMMIYYYY)	ExerciselConversion period or date	Number	# of voting rights that may be acquired if the instrument is exercised/converted
					D
					-------------------------------L
1;-::~-;-s,-h:re,w;""",~".'9h·	__ -r.IN;::"m"",,=
C) Remar1 <s< td="">
	Wellington Management is registered as an investment adviser with the United States Securi~es and Exchange Commission under section 203 of the InvestmentAdvisors Actof 1940, as amended, and acts as discretionary investment manager on behalf of various separate accounts ("the Accounts"), that hold an interest in shares of UCB. The Accounts do not act as a group nor do they act in concert with respect to the interests in shares. Wellington Managementacquired the interests in shares for the Accounts in its capacity as discretionary investment manager to, and solely for the benefit of, the Accounts, and the interests were acquired for investment purposes. The shares are registered in the name of the AlXOunts according to their respective holdings.
Done at		Boston MA
0,	126101/2012	(DD/MMIYYYY)
Name & capacity
	Lonn D. Norbert!, Vice President & Counsel		Signature