Cancom share: CANCOM SE – Financial trends

Notice of significant holdings

1. Provider Information

Name: CANCOM SE Street: Erika-Mann-Straße 69 Zip Code: 80636 City: Munich Germany Legal Entity Identifier (LEI): 391200T4AUN1BPBXAO14

2. Reason for reporting

X Acquisition/disposal of shares with voting rights Acquisition/disposal of instruments Change in allocation of voting rights Other reason:

3. Information about the person subject to the reporting obligation

Law Firm: BlackRock, Inc. Place of Incorporation, Country: Wilmington, Delaware, United States of America (USA)

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4. Names of shareholders directly holding 3% or more of the voting rights, if different from 3.

5. Date of Exceeding or Reaching the Limit:

09/16/2022

6. Cumulative Positions

% Voting Rights % Voting Rights in Shares Instruments (7.b.1 + 7 of (Total 7.a b.2) 7.b.) 41 WpHG New 2.99% 0.23% 3.22% 35371850 Advance 3.16% 0.28% 3.44% / Notice

7. DETAILS OF GROSS PRODUCTS a. Voting rights associated with shares (sections 33, 34 WpHG)

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% of ISIN Direct (Sec. Indirect (Sec. Indirect 33 WpHG) 34 WpHG) 33 WpHG) (Sec. 34 WpHG) DE0005419105 0 1059183 0% 2.3109% 9183109% Total

b.1. Section 38 (1) no. 1 Instruments according to WpHG

Type of Forfeiture or Exercise or Voting Instrument Maturity Date Conversion Rights Period Absolute % of Bonds Lent n/a 19032 0.05% (Right of Recall) Total 19032 0.05%

b.2 Section 38 (1) no. 2 Instruments according to WpHG

FORFEITURE EXERCISE TYPE OR CASH OR VOTING INSTRUMENT OR Maturity Change Physical Rights Rights Date Term Settlement % Contract N/AN/A Cash 61211 0.17% TOTAL FOR DIFFERENCE 61211 0.17%

8. Information about person subject to reporting obligation

The person subject to the reporting obligation does not directly or indirectly (principally) control and does not control any other entities that have an interest in the issuer (1.). X The entire chain of controlled entities begins with the primary controlling natural or legal person:

Name % Voting Rights % Voting Rights Total Rights (at least 3% or (if at least 5% or at least 5% or more) BlackRock, Inc. % % % BlackRock Holdco 2, % % % Inc. BlackRock Financial % % % Management, Inc. – % % % % BlackRock, Inc. % % % % BlackRock Holdco 2, % % % % Inc. BlackRock Financial % % % Management, Inc. BlackRock Capital % % Holdings BlackRock Advisors, % %% LLC – %%% BlackRock, Inc. %%% BlackRock Holdco 2, %%% Inc. BlackRock Financial %%% Management, Inc. BlackRock Holdco 4, %%% LLC BlackRock Holdco 6, %% % LLC BlackRock Delaware %%% Holdings Inc. – %%%% BlackRock, Inc. %%% BlackRock Holdco 2.% %% Inc. BlackRock Financial %%% Management, Inc. BlackRock Holdco 4.% %% LLC BlackRock Holdco 6.% %% LLC BlackRock Delaware %%% Holdings Inc. BlackRock Fund %%% Advisor – %%% BlackRock, Inc. %%% BlackRock Holdco 2, %%% % Inc. BlackRock Financial %%% Management, Inc. BlackRock Holdco 4 ,%%%LLC BlackRock Holdco 6 .%%% LLC BlackRock De laware %%% Holdings Inc. BlackRock %%% Institutional Trust Company, National Association – %%% BlackRock, Inc. %%%% BlackRock Holdco 2.%%%% Inc. BlackRock Financial% %% Management, Inc. BlackRock %%% International Holdings, Inc. BR Jersey %%% International Holdings LP BlackRock Australia %%% Holdco Pty. Ltd BlackRock %%% Investment Management (Australia) Ltd – %%% BlackRock, Inc. %%% BlackRock Holdco 2, %%%% Inc. BlackRock Financial %%% Management, Inc. BlackRock %%% International Holdings, Inc. BR Jersey %%% International Holdings LP BlackRock Holdings 3, %%% LLC BlackRock Canada %%% Holdings LP BlackRock Canada %%% Holdings ULC BlackRock Property %%% Management Canada Limited – %%% BlackRock, Inc. %%%% BlackRock Holdco 2. %%% Inc. BlackRock Financial %%% Management, Inc. BlackRock %%% International Holdings, Inc. BR Jersey %%% International Holdings LP BlackRock %%% (Singapore) Holdco Pte. Limited BlackRock HK Holdco %%% Limited BlackRock Lux Finco %%% Sa rl BlackRock Japan %%% Holdings GK BlackRock Japan %%% Co., Ltd. – %%% BlackRock, Inc. %%% BlackRock Holdco 2, %%% Inc. BlackRock Financial %%% Management, Inc. BlackRock %%% International Holdings, Inc. BR Jersey %%% International Holdings LP BlackRock Holdco 3, %%% LLC BlackRock Cayman 1%%% LP BlackRock Cayman %%% West Bay Finco Ltd BlackRock Cayman %%% West Bay IV Ltd BlackRock Group %%% Ltd BlackRock %% % International Limited – %%%% BlackRock, Inc. %%% BlackRock Holdco 2.%%% Inc. BlackRock Financial %%% Management, Inc. BlackRock %%% International Holdings, Inc. BR Jersey %%% International Holdings LP BlackRock Holdco 3.%%% LLC BlackRock Cayman 1% % % LP BlackRock Cayman % % % West Bay Finco Ltd BlackRock Cayman % % % West Bay IV Ltd BlackRock Group % % % Ltd BlackRock Finance % % Europe Ltd BlackRock Consultants % % % (UK) Ltd -%% % Inc. %%% BlackRock Holdco 2, %%% Inc. BlackRock Financial %%% Management, Inc. BlackRock %%% International Holdings, I nc. BR Jersey %%% International Holdings LP BlackRock Holdco 3, %%% LLC BlackRock Cayman 1%%% LP BlackRock Cayman %%% West Bay Finco Ltd BlackRock Cayman %%% West Bay IV Ltd BlackRock Group %%% Ltd BlackRock Group Finance %%% Europe Limited BlackRock %%% Investment Management (UK) Limited – %%% BlackRock, Inc. %%% BlackRock Holdco 2, %%% Inc. BlackRock Financial %%% Management, Inc. BlackRock %%% International Holdings, Inc. PR JERSEY %%% INTERNATIONAL HOLDINGS LP BLACKROCK HOLDINGS 3, %%% LLC BLACKROCK CAYMAN 1%%% LP BLACKROCK CAYMAN %%% WEST BAY FINCO LTD BLACKROCK CAYMAN %%% WEST BAY IV LTD BLACKROCK GROUP %%% BLACKROCK GROUP %%% % Luxembourg Holdco Charles Blackrock % % % Investment Management Ireland Holdings Limited Blackrock Asset % % % Management Ireland Limited – % % % Blackrock, Inc. % % % of BlackRock Holdco % Fi. % Management, Inc. BlackRock % % % International Holdings, Inc. BR JERSEY % % % I INTERNATIONAL HOLDINGS LP BLACKROCK HOLDCO 3.% %% LLC BLACKROCK CAYMAN 1% %% LP BLACKROCK CAYMAN %%% WEST BAY FINCO LTD BLACKROCK CAYMAN %%% WEST BAY IV LTD BLACKROCK GROUP %%% BLACKROCK GROUP %%% %% LUXEMBOURG UK HOLDCO %%% LIMITED BLACKROCK ASSET %% MANAGEMENT SWISS AG – %%%% BLACKROCK, INC. %%% Blackrock Holdco 2, %%%% Inc. Blackrock Financial %%% Management, Inc. BlackRock International Holdings, Inc. BR Jersey %%% International Holdings LP BlackRock Holdco 3, %%% LLC BlackRock Cayman 1%%% LP BlackRock Cayman %%% West Bay Finco Limited BlackRock Cayman %%% West Bay IV Limited BlackRock Group %%% Limited BlackRock Finance % % % Europe Ltd. BlackRock % % % (Netherlands) BV BlackRock Asset % % % Management Deutschland AG – % % % %

9. In the case of proxy voting according to Section 34 (3) WpHG (only in the case of assignment of voting rights according to Section 34 (1) sentence 1 no. 6 WpHG)

Date of AGM: Post AGM (6th) Post AGM Holding of Cumulative Positions:

Percentage of Voting Rights Percentage of Total Rights Instruments Both %% %

10. Other explanatory notes:

September 21, 2022