Notification of Major Holdings1. Details of issuer	| Name: | 	Siltronic AG | 
	| Street: | 	Hanns-Seidel-Platz 4 | 
	| Postal code: | 	81737 | 
	| City: | 	Munich Germany | 
	| Legal Entity Identifier (LEI): | 	5299003NKV26NNGHHR90 | 
2. Reason for notification	|   | 	Acquisition/disposal of shares with voting rights | 
	|   | 	Acquisition/disposal of instruments | 
	|   | 	Change of breakdown of voting rights | 
	| X | 	Other reason: Equity collateral returned. | 
3. Details of person subject to the notification obligation	Legal entity: DWS Investment GmbH City of registered office, country: Frankfurt am Main, Germany | 
4. Names of shareholder(s)holding directly 3% or more voting rights, if different from 3.
5. Date on which threshold was crossed or reached:6. Total positions	|   | 	% of voting rights attached to shares  (total of 7.a.) | 	% of voting rights through instruments  (total of 7.b.1 + 7.b.2) | 	Total of both in %  (7.a. + 7.b.) | 	Total number of voting rights pursuant to Sec. 41 WpHG | 
	| New | 	2.36 % | 	0.34 % | 	2.70 % | 	30000000 | 
	| Previous notification | 	3.35 % | 	0.34 % | 	3.68 % | 	/ | 
7. Details on total positionsa. Voting rights attached to shares (Sec. 33, 34 WpHG)	| ISIN | 	Absolute | 	In % | 
	|   | 	Direct  (Sec. 33 WpHG) | 	Indirect  (Sec. 34 WpHG) | 	Direct  (Sec. 33 WpHG) | 	Indirect  (Sec. 34 WpHG) | 
	| DE000WAF3001 | 	0 | 	707464 | 	0.00 % | 	2.36 % | 
	| Total | 	707464 | 	2.36 % | 	
b.1. Instruments according to Sec. 38 (1) no. 1 WpHG	| Type of instrument | 	Expiration or maturity date | 	Exercise or conversion period | 	Voting rights absolute | 	Voting rights in % | 
	 | 	 | 	 | 	0 | 	0.00 % | 
	|   | 	  | 	Total | 	0 | 	0.00 % | 
b.2. Instruments according to Sec. 38 (1) no. 2 WpHG	| Type of instrument | 	Expiration or maturity date | 	Exercise or conversion period | 	Cash or physical settlement | 	Voting rights absolute | 	Voting rights in % | 
	| Short Put Option | 	21.09.2020 | 	 | 	Physical | 	101400 | 	0.34 % | 
	|   | 	  | 	  | 	Total | 	101400 | 	0.34 % | 
8. Information in relation to the person subject to the notification obligation	| X | 	Person subject to the notification obligation is not controlled nor does it control any other undertaking(s) that directly or indirectly hold(s) an interest in the (underlying) issuer (1.). | 
	|   | 	Full chain of controlled undertakings starting with the ultimate controlling natural person or legal entity: | 
	| Name | 	% of voting rights (if at least 3% or more) | 	% of voting rights through instruments (if at least 5% or more) | 	Total of both (if at least 5% or more) | 
	|   | 	 | 	 | 	 | 
9. In case of proxy voting according to Sec. 34 para. 3 WpHG(only in case of attribution of voting rights in accordance with Sec. 34 para. 1 sent. 1 No. 6 WpHG)
Date of general meeting: 
Holding total positions after general meeting (6.) after annual general meeting:
	| Proportion of voting rights | 	Proportion of instruments | 	Total of both | 
	|  % | 	 % | 	 % | 
10. Other explanatory remarks:	| Equity collateral returned via transfer of title.  |  
Date