Report on insiders' transactions


NASDAQ OMX Copenhagen A/S	  		12.05.2010
Nikolaj Plads 6
1067 København K	


No. 17/10

Report on insider transactions with shares issued by Topsil Semiconductor
Materials A/S 

Pursuant to section 28a of the Danish Securities Trading Act we can report the
following transactions based on today's reports from insiders: 

Name: Jens Borelli-Kjær & related parties
Reason: Chairman
Issuer: Topsil Semiconductor Materials
ID-code: DK 0060221034
Type: New shares
Transaction: Purchase (subscription of new shares)
Trading date: 12 May 2010
Market: NASDAQ OMX Copenhagen
Number: 217,500
Market value DKK: 195,750


Name: Trine Schønnemann
Reason: Representative elected by the employees
Issuer: Topsil Semiconductor Materials
ID-code: DK 0060221034
Type: New shares
Transaction: Purchase (subscription of new shares)
Trading date: 12 May 2010
Market: NASDAQ OMX Copenhagen
Number: 20,500
Market value DKK: 18,450


Name: Martin Overgaard Hansen
Reason: CEO, Cemat Silicon S.A.
Issuer: Topsil Semiconductor Materials
ID-code: DK 0060221034
Type: New shares
Transaction: Purchase (subscription of new shares)
Trading date: 12 May 2010
Market: NASDAQ OMX Copenhagen
Number: 88,251
Market value DKK: 79,425.90


Name: Eivind Dam Jensen (related parties)
Reason: Vice-chairman of the Board
Issuer: Topsil Semiconductor Materials
ID-code: DK 0060221034
Type: New shares
Transaction: Purchase (subscription of new shares)
Trading date: 11 May 2010
Market: NASDAQ OMX Copenhagen
Number: 376,500
Market value DKK: 338,850

Topsil Semiconductor Materials A/S



Jens Borelli-Kjær			Keld Lindegaard Andersen
Chairman				CEO
+45 40 16 14 82			        +45 21 70 87 72


Please note that this translation is provided for convenience only. The Danish
version shall prevail in case of discrepancies.

Attachments

17-10 uk.pdf