A.s. Mariselle - 03 Nov 2026 SCHEDULE 13D/A Report for MDA Space Ltd. Common Shares (MDA)

Filing manager
A.s. Mariselle
Reporting owner
CSG SPACE A.S.
Security
MDA Space Ltd. Common Shares
Beneficially owned shares
15,356,219 shares
Ownership signal CIK-linked ownership evidence from parsed SEC filings. 2 signals
Large-stake signal

Form

SCHEDULE 13D/A

Active or control-oriented beneficial ownership filing.

Ownership

9.5%

Beneficial ownership of this reported class.

Shares

15,356,219 shares

Shares beneficially owned as disclosed.

Event date

03 Nov 2026

Date tied to the ownership event or amendment.

Accepted by SEC

04 Nov 2026

EDGAR acceptance date.

How to read this large-stake filing
  • Schedule 13D/G filings focus on beneficial ownership stakes, not a full portfolio.
  • Compare this filing with the holder history and issuer page before treating the percentage as a current position.
  • Use amendments to understand whether the disclosed stake increased, decreased, or changed reporting status.
Class ownership
9.5%
Subject security Names, identifiers, and filing context for this profile. 2 source fields
Symbol
MDA
Shares outstanding
161,644,411 shares
Source evidence Original filing metadata and source links for verification. 5 source fields
SEC form
SCHEDULE 13D/A
Accepted by SEC
04 Nov 2026, 16:00:07 UTC
Event date
03 Nov 2026
Prior SEC filing
14 Oct 2026
Source filing
View source filing
Filing notes and source

Key filing fact

A.s. Mariselle disclosed 9.5% ownership in MDA Space Ltd. Common Shares (MDA) on 03 Nov 2026.

Key facts

  • A.s. Mariselle filed SCHEDULE 13D/A for MDA Space Ltd. Common Shares (MDA).
  • Disclosed ownership: 9.5%.
  • Date of event: 03 Nov 2026.

Change

  • Disclosed shares changed by 0 since the prior disclosure.
  • Previous schedule filing date: 14 Oct 2026.
  • Current filing was accepted on 04 Nov 2026, 16:00.
  • Disclosed stake changed by 0.00 percentage points.
  • Changes between disclosures can reflect transactions, share-count changes or reporting changes; they do not establish a purchase or activist intent.

Research use

  • This page turns one Schedule 13D/G filing into a quick large-stake read before the raw reporting-person rows.
  • Use the linked SEC filing as the source of truth for ownership percentages, shares, and reporting-party details.

Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

View source filing

Reporting persons

Disclosed reporting parties (3)

Names, ownership percentages, voting power, signatures, titles, and CIKs as disclosed in this Schedule 13D/G filing.

Name Ownership Shares owned Sole voting power Shared voting power Signature Title CIK
CSG SPACE A.S. 9.5% 15,356,219 15,356,219 0 /s/ Stanislav Kuba Stanislav Kuba/Chairman of the Administrative Board 0002156024
CZECHOSLOVAK GROUP A.S. 9.5% 15,356,219 15,356,219 0 /s/ Ladislav Storek Ladislav Storek/Vice-Chairman of the Board of Directors
MICHAL STRNAD 9.5% 15,356,219 15,356,219 0 /s/ Michal Strnad Michal Strnad/Chairman of Czechoslovak Group a.s.
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