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SCHEDULE 13D/A Filed 2026-06-29 Event 2026-06-25 SEC 0001104659-26-078972 →

Atlas Investissement SAS MILLICOM INTERNATIONAL CELLULAR SA MLCMF

Stake: 49.50% Shares: 82,982,244 CUSIP: L6388F110 Class: Common Shares

Item 4 — Purpose of Transaction

Item 4 of the Schedule 13D is hereby amended and supplemented by adding the following: The information set forth in Item 3 of this Amendment No. 29 is incorporated herein by reference. On June 29, 2026, Atlas Investissement entered into a confirmation relating to an equity derivative transaction (the "June Equity Derivative Transaction" and the documentation relating thereto the "Equity Derivative Transaction Agreements") with an unaffiliated third party financial institution (the "Bank"), pursuant to which Atlas Investissement expects to purchase up to 6,000,000 Common Shares on or before September 29, 2026. The actual timing and the number of Common Shares under such transaction will be determined based on the hedging position of the Bank in accordance with certain parameters of the Equity Derivative Transaction Agreements. Under the terms of the Equity Derivative Transaction Agreements, absent any extraordinary event, Atlas Investissement will be obligated to pay the Bank in cash an amount defined under such agreements for the acquisition of a number of Common Shares determined in accordance with the terms of such agreements, in consideration of which the Bank will be obligated, at each relevant settlement date in accordance with the terms of such agreements, to deliver such number of such Common Shares. Cash dividends (relating to the Common Shares not having yet been delivered to Atlas Investissement under the Equity Derivative Transaction Agreements) paid during the term thereof will give rise to a payment by the Bank to Atlas Investissement for an amount determined (taking into account all relevant withholding taxes) in accordance with the Equity Derivative Transaction Agreements. All balances will be exclusively physically settled, absent any extraordinary event, at the scheduled settlement dates of the Equity Derivative Transaction Agreements, although Atlas Investissement has the right to request an earlier settlement date for a physical settlement relating to the entirety of the Bank's hedging position at the relevant time. The Equity Derivative Transaction Agreements provide that Atlas Investissement does not have any direct or indirect voting, investment or dispositive control over any of the Common Shares held by the Bank corresponding to its hedging position until a settlement and delivery of such shares to Atlas Investissement and that the Bank will not notify or consult with Atlas Investissement regarding any voting rights with respect to the Common Shares that relate to its hedging position. The foregoing description of the June Equity Derivative Transaction is qualified in its entirety by reference to the terms of the Confirmation relating to the June Equity Derivative Transaction, a copy of which is filed as exhibit to this Amendment No. 29 and incorporated herein by reference. Separately from the above, on June 26, 2026, Atlas Investissement has irrevocably elected cash settlement for the three European-style call spread option transactions contemplated under each of the respective Letter Agreements on Share Option Transaction (as defined and described in Amendment No. 21 to the Schedule 13D).

Cross-References

Insider Activity (last 365d)
0 transactions
0 buys · 0 sales · 0 awards/exercises
Issuer Cluster
10 13D/G filings on this issuer
9 other filings besides this one
Filer Track Record
10 filings by this filer
9 other filings in the data moat
Short Interest
Not in latest FINRA snapshot

Institutional Consensus · 2025-12-31

Held by elite portfolio managers
1 holder · $3.02M
Point72 Asset Mgmt

Post-Filing Returns · since 2026-06-25 on MLCMF

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Anchor price 30.00 on closest trading day on/after 2026-06-25. Source: Yahoo Finance daily adj_close (split + dividend adjusted).

Other 13D/G Filings on MILLICOM INTERNATIONAL CELLULAR SA

FiledFormFilerStakeShares
2026-06-23 SCHEDULE 13D/A Atlas Investissement SAS 46.70% 78,320,018 view →
2025-08-22 SCHEDULE Atlas Investissement SAS 42.20% 70,470,018 view →
2025-08-13 SCHEDULE Atlas Investissement SAS 42.20% 70,470,018 view →
2025-03-17 SCHEDULE Atlas Investissement 41.88% 70,470,018 view →
2024-07-03 SC Atlas Investissement view →
2023-10-02 SC Atlas Investissement view →
2023-07-24 SC Atlas Investissement view →
2023-05-25 SC Atlas Investissement view →
2023-04-26 SC Atlas Investissement view →

Other Filings by Atlas Investissement SAS

FiledFormIssuerStakeShares
2026-06-23 SCHEDULE 13D/A MILLICOM INTERNATIONAL CELLULAR SA MLCMF 46.70% 78,320,018 view →
2025-08-22 SCHEDULE MILLICOM INTERNATIONAL CELLULAR SA MLCMF 42.20% 70,470,018 view →
2025-08-13 SCHEDULE MILLICOM INTERNATIONAL CELLULAR SA MLCMF 42.20% 70,470,018 view →
2025-03-17 SCHEDULE MILLICOM INTERNATIONAL CELLULAR SA MLCMF 41.88% 70,470,018 view →
2024-07-03 SC MILLICOM INTERNATIONAL CELLULAR SA MLCMF view →
2023-10-02 SC MILLICOM INTERNATIONAL CELLULAR SA MLCMF view →
2023-07-24 SC MILLICOM INTERNATIONAL CELLULAR SA MLCMF view →
2023-05-25 SC MILLICOM INTERNATIONAL CELLULAR SA MLCMF view →
2023-04-26 SC MILLICOM INTERNATIONAL CELLULAR SA MLCMF view →

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