Holding(s) in Company

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments ^{xv, xvi}

Resulting situation after the triggering transaction

Type of financial
instrument

Exercise
price

Expiration
date ^xvii

Exercise/
Conversion
period ^xviii

Number of voting
rights instrument
refers to

% of voting rights ^{xix, xx}

RNS Number : 9143B

Microgen PLC

09 April 2013

9 April 2013

Microgen plc (the "Company")

Notifiable Interests

The Company received the following notice on 8 April 2013 in compliance with the Disclosure and Transparency Rules from Hargreave Hale Limited.

For filings with the FCA include the annex
For filings with issuer exclude the annex

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES ⁱ

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

MICROGEN PLC

2 Reason for the notification (please tick the appropriate box or boxes):
An acquisition or disposal of voting rights
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):	A client changed their mandate from non-discretionary to discretionary thereby increasing the discretionary holding over the 5% reporting threshold.	x

3. Full name of person(s) subject to the notification obligation: ⁱⁱⁱ	HARGREAVE HALE LIMITED
4. Full name of shareholder(s) (if different from 3.): ^iv	DISCRETIONARY CLIENTS
5. Date of the transaction and date on which the threshold is crossed or reached: ^v	05 APRIL 2013
6. Date on which issuer notified:	08 APRIL 2013
7. Threshold(s) that is/are crossed or reached: ^{vi, vii}	5%

8. Notified details:
A: Voting rights attached to shares ^{viii, ix}
Class/type of shares if possible using the ISIN CODE	Situation previous to the triggering transaction		Resulting situation after the triggering transaction
	Number of Shares	Number of Voting Rights	Number of shares	Number of voting rights		% of voting rights ^x
			Indirect	Direct ^xi	Indirect ^xii	Direct	Indirect
GB0005869531	3,841,550	3,841,550	4,191,550		4,191,550		5.0790%

B: Qualifying Financial Instruments
Resulting situation after the triggering transaction
Type of financial instrument	Expiration date ^xiii	Exercise/ Conversion Period ^xiv	Number of voting rights that may be acquired if the instrument is exercised/ converted.	% of voting rights

Total (A+B+C)
Number of voting rights	Percentage of voting rights
4,191,550	5.0790%

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

3,350,000 of these shares are held for unit trusts operated by Marlborough Fund Managers Ltd for whom Hargreave Hale Ltd manages the investments on a discretionary basis. The remaining shares are held for other Discretionary clients.

Proxy Voting:
10. Name of the proxy holder:
11. Number of voting rights proxy holder will cease to hold:
12. Date on which proxy holder will cease to hold voting rights: