Perestroika (Cyprus) Ltd

SEC source: 0001737912-25-000008 · form4-11252025_101151.xml · nonDerivative · entry 1

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,574,894

SEC source: 0001737912-25-000006 · form4-10012025_011012.xml · nonDerivative · entry 1

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,074,894

F1 · kind: The transaction reported herein was made in connection with a registered public offering of securities at the reported public offering price offered by the Issuer, as described in the Issuer's prospectus supplement filed with the U.S. Securities and Exchange Commission on September 26, 2025.

F1 · shares: The transaction reported herein was made in connection with a registered public offering of securities at the reported public offering price offered by the Issuer, as described in the Issuer's prospectus supplement filed with the U.S. Securities and Exchange Commission on September 26, 2025.

SEC source: 0001415889-24-023386 · form4-09132024_090929.xml · nonDerivative · entry 1

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 91,074,894

SEC source: 0001415889-24-020700 · form4-08052024_100807.xml · nonDerivative · entry 1

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,574,894

SEC source: 0001415889-24-013591 · form4-05172024_090546.xml · nonDerivative · entry 1

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,574,894

SEC source: 0001415889-24-005893 · form4-02292024_090211.xml · nonDerivative · entry 1

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,574,894

SEC source: 0001415889-23-013427 · form4-09192023_090908.xml · nonDerivative · entry 1

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 84,574,894

F1 · shares: In connection with the acquisition of all of the issued and outstanding equity interest in Liquila Ventures Ltd. ("Liquila"), Transocean Ltd. (the "Company") paid 1,978,396 shares of the Company valued at $15,870,000 for the equity interests of Liquila owned by the Reporting Person.

F1 · price: In connection with the acquisition of all of the issued and outstanding equity interest in Liquila Ventures Ltd. ("Liquila"), Transocean Ltd. (the "Company") paid 1,978,396 shares of the Company valued at $15,870,000 for the equity interests of Liquila owned by the Reporting Person.

SEC source: 0001415889-23-006859 · form4-04252023_110406.xml · derivative · entry 2

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Registered Shares · 34,600,147 shares

Expires 2027-01-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The 2.5% Senior Guaranteed Exchangeable Bonds due January 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of Transocean Ltd. (the "Company"), pursuant to an Indenture dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors, and Computershare Trust Company, N.A., as successor trustee to Wells Fargo Bank, National Association, and are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds.

F1 · reported_value: The 2.5% Senior Guaranteed Exchangeable Bonds due January 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of Transocean Ltd. (the "Company"), pursuant to an Indenture dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors, and Computershare Trust Company, N.A., as successor trustee to Wells Fargo Bank, National Association, and are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds.

F2 · reported_value: On April 21, 2023, Perestroika (Cyprus) Ltd. exchanged its 2.5% Exchangeable Bonds pursuant to the terms of the Indenture referred to in footnote 1.

F1 · price: The 2.5% Senior Guaranteed Exchangeable Bonds due January 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of Transocean Ltd. (the "Company"), pursuant to an Indenture dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors, and Computershare Trust Company, N.A., as successor trustee to Wells Fargo Bank, National Association, and are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds.

F1 · derivative.exercise_date: The 2.5% Senior Guaranteed Exchangeable Bonds due January 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of Transocean Ltd. (the "Company"), pursuant to an Indenture dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors, and Computershare Trust Company, N.A., as successor trustee to Wells Fargo Bank, National Association, and are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds.

F1 · derivative.expiration_date: The 2.5% Senior Guaranteed Exchangeable Bonds due January 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of Transocean Ltd. (the "Company"), pursuant to an Indenture dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors, and Computershare Trust Company, N.A., as successor trustee to Wells Fargo Bank, National Association, and are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds.

F1 · derivative.underlying_shares: The 2.5% Senior Guaranteed Exchangeable Bonds due January 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of Transocean Ltd. (the "Company"), pursuant to an Indenture dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors, and Computershare Trust Company, N.A., as successor trustee to Wells Fargo Bank, National Association, and are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds.

F2 · derivative.underlying_shares: On April 21, 2023, Perestroika (Cyprus) Ltd. exchanged its 2.5% Exchangeable Bonds pursuant to the terms of the Indenture referred to in footnote 1.

F1 · balance_after: The 2.5% Senior Guaranteed Exchangeable Bonds due January 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of Transocean Ltd. (the "Company"), pursuant to an Indenture dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors, and Computershare Trust Company, N.A., as successor trustee to Wells Fargo Bank, National Association, and are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds.

F2 · balance_after: On April 21, 2023, Perestroika (Cyprus) Ltd. exchanged its 2.5% Exchangeable Bonds pursuant to the terms of the Indenture referred to in footnote 1.

SEC source: 0001415889-23-006859 · form4-04252023_110406.xml · nonDerivative · entry 1

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 82,596,498

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0001415889-22-012549 · form4-12142022_101234.xml · nonDerivative · entry 1

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,996,351

F1 · kind: On December 12, 2022, Perestroika AS transferred 14,900,000 of its registered shares of Transocean Ltd. (the "Company") to Perestroika (Cyprus) Ltd., a wholly-owned subsidiary of Perestroika AS. Frederik Mohn, a member of the Board of Directors of the Company, is the sole owner and director of Perestroika AS and the beneficial owner of all securities owned by Perestroika AS and Perestroika (Cyprus) Ltd. While this change in the form of Perestroika AS's and Mr. Mohn's beneficial ownership is exempt from reporting, this Form 4 is being filed by Perestroika (Cyprus) Ltd. to report the change with respect to ownership of Company securities.

F1 · price: On December 12, 2022, Perestroika AS transferred 14,900,000 of its registered shares of Transocean Ltd. (the "Company") to Perestroika (Cyprus) Ltd., a wholly-owned subsidiary of Perestroika AS. Frederik Mohn, a member of the Board of Directors of the Company, is the sole owner and director of Perestroika AS and the beneficial owner of all securities owned by Perestroika AS and Perestroika (Cyprus) Ltd. While this change in the form of Perestroika AS's and Mr. Mohn's beneficial ownership is exempt from reporting, this Form 4 is being filed by Perestroika (Cyprus) Ltd. to report the change with respect to ownership of Company securities.

SEC source: 0001179110-20-009132 · edgar.xml · derivative · entry 2

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Shares · Not disclosed shares

Expires 2027-01-30

F2 · derivative.exercise_price: On August 14, 2020, Perestroika (Cyprus) Ltd. exchanged its 0.5% Exchangeable Bonds for 2.5% Exchangeable Bonds (as defined below) in a private exchange.

F3 · derivative.exercise_price: The 2.5% Senior Guaranteed Exchangeable Bonds due 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of the Company, and fully and unconditionally guaranteed by the Company and certain subsidiary guarantors on August 14, 2020. The 2.5% Exchangeable Bonds are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds, which initial exchange rate is subject to adjustment in accordance with the Indenture, dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors and Wells Fargo Bank, National Association. The 2.5% Exchangeable Bonds are exchangeable at any time prior to the close of business on the second business day immediately preceding the maturity date of January 30, 2027.

F3 · reported_value: The 2.5% Senior Guaranteed Exchangeable Bonds due 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of the Company, and fully and unconditionally guaranteed by the Company and certain subsidiary guarantors on August 14, 2020. The 2.5% Exchangeable Bonds are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds, which initial exchange rate is subject to adjustment in accordance with the Indenture, dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors and Wells Fargo Bank, National Association. The 2.5% Exchangeable Bonds are exchangeable at any time prior to the close of business on the second business day immediately preceding the maturity date of January 30, 2027.

F3 · price: The 2.5% Senior Guaranteed Exchangeable Bonds due 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of the Company, and fully and unconditionally guaranteed by the Company and certain subsidiary guarantors on August 14, 2020. The 2.5% Exchangeable Bonds are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds, which initial exchange rate is subject to adjustment in accordance with the Indenture, dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors and Wells Fargo Bank, National Association. The 2.5% Exchangeable Bonds are exchangeable at any time prior to the close of business on the second business day immediately preceding the maturity date of January 30, 2027.

F3 · derivative.underlying_shares: The 2.5% Senior Guaranteed Exchangeable Bonds due 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of the Company, and fully and unconditionally guaranteed by the Company and certain subsidiary guarantors on August 14, 2020. The 2.5% Exchangeable Bonds are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds, which initial exchange rate is subject to adjustment in accordance with the Indenture, dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors and Wells Fargo Bank, National Association. The 2.5% Exchangeable Bonds are exchangeable at any time prior to the close of business on the second business day immediately preceding the maturity date of January 30, 2027.

F2 · valueOwnedAfter: On August 14, 2020, Perestroika (Cyprus) Ltd. exchanged its 0.5% Exchangeable Bonds for 2.5% Exchangeable Bonds (as defined below) in a private exchange.

F3 · valueOwnedAfter: The 2.5% Senior Guaranteed Exchangeable Bonds due 2027 (the "2.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of the Company, and fully and unconditionally guaranteed by the Company and certain subsidiary guarantors on August 14, 2020. The 2.5% Exchangeable Bonds are exchangeable into shares of the Company at an initial exchange rate of 162.1626 Shares per $1,000 principal amount of 2.5% Exchangeable Bonds, which initial exchange rate is subject to adjustment in accordance with the Indenture, dated August 14, 2020, among Transocean Inc., the Company and certain subsidiary guarantors and Wells Fargo Bank, National Association. The 2.5% Exchangeable Bonds are exchangeable at any time prior to the close of business on the second business day immediately preceding the maturity date of January 30, 2027.

SEC source: 0001179110-20-009132 · edgar.xml · derivative · entry 1

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Shares · Not disclosed shares

Expires 2023-01-30

F1 · derivative.exercise_price: The 0.5% Exchangeable Senior Bonds due 2023 (the "0.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of the Company, and fully and unconditionally guaranteed by the Company on January 30, 2018. The 0.5% Exchangeable Bonds are exchangeable into shares of the Company at an initial exchange rate of 97.29756 Shares per $1,000 principal amount of 0.5% Exchangeable Bonds, which initial exchange rate is subject to adjustment in accordance with the Indenture, dated January 30, 2018, among Transocean Inc., the Company, Computershare Trust Company, N.A. and Computershare Trust Company of Canada. The 0.5% Exchangeable Bonds are exchangeable at any time prior to and up to the maturity date of January 30, 2023.

F1 · reported_value: The 0.5% Exchangeable Senior Bonds due 2023 (the "0.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of the Company, and fully and unconditionally guaranteed by the Company on January 30, 2018. The 0.5% Exchangeable Bonds are exchangeable into shares of the Company at an initial exchange rate of 97.29756 Shares per $1,000 principal amount of 0.5% Exchangeable Bonds, which initial exchange rate is subject to adjustment in accordance with the Indenture, dated January 30, 2018, among Transocean Inc., the Company, Computershare Trust Company, N.A. and Computershare Trust Company of Canada. The 0.5% Exchangeable Bonds are exchangeable at any time prior to and up to the maturity date of January 30, 2023.

F2 · reported_value: On August 14, 2020, Perestroika (Cyprus) Ltd. exchanged its 0.5% Exchangeable Bonds for 2.5% Exchangeable Bonds (as defined below) in a private exchange.

F1 · price: The 0.5% Exchangeable Senior Bonds due 2023 (the "0.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of the Company, and fully and unconditionally guaranteed by the Company on January 30, 2018. The 0.5% Exchangeable Bonds are exchangeable into shares of the Company at an initial exchange rate of 97.29756 Shares per $1,000 principal amount of 0.5% Exchangeable Bonds, which initial exchange rate is subject to adjustment in accordance with the Indenture, dated January 30, 2018, among Transocean Inc., the Company, Computershare Trust Company, N.A. and Computershare Trust Company of Canada. The 0.5% Exchangeable Bonds are exchangeable at any time prior to and up to the maturity date of January 30, 2023.

F1 · derivative.underlying_shares: The 0.5% Exchangeable Senior Bonds due 2023 (the "0.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of the Company, and fully and unconditionally guaranteed by the Company on January 30, 2018. The 0.5% Exchangeable Bonds are exchangeable into shares of the Company at an initial exchange rate of 97.29756 Shares per $1,000 principal amount of 0.5% Exchangeable Bonds, which initial exchange rate is subject to adjustment in accordance with the Indenture, dated January 30, 2018, among Transocean Inc., the Company, Computershare Trust Company, N.A. and Computershare Trust Company of Canada. The 0.5% Exchangeable Bonds are exchangeable at any time prior to and up to the maturity date of January 30, 2023.

F1 · valueOwnedAfter: The 0.5% Exchangeable Senior Bonds due 2023 (the "0.5% Exchangeable Bonds") were issued by Transocean Inc., a wholly owned subsidiary of the Company, and fully and unconditionally guaranteed by the Company on January 30, 2018. The 0.5% Exchangeable Bonds are exchangeable into shares of the Company at an initial exchange rate of 97.29756 Shares per $1,000 principal amount of 0.5% Exchangeable Bonds, which initial exchange rate is subject to adjustment in accordance with the Indenture, dated January 30, 2018, among Transocean Inc., the Company, Computershare Trust Company, N.A. and Computershare Trust Company of Canada. The 0.5% Exchangeable Bonds are exchangeable at any time prior to and up to the maturity date of January 30, 2023.

F2 · valueOwnedAfter: On August 14, 2020, Perestroika (Cyprus) Ltd. exchanged its 0.5% Exchangeable Bonds for 2.5% Exchangeable Bonds (as defined below) in a private exchange.

SEC source: 0001179110-18-009334 · edgar.xml · nonDerivative · entry 1

Perestroika (Cyprus) Ltd · CIK 0001737912 · Director · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,096,351

F1 · kind: On June 26, 2018, Perestroika AS transferred 660,000 of its Shares of Transocean Ltd. (the "Company") to Perestroika (Cyprus) Ltd. Perestroika (Cyprus) Ltd. is a wholly owned subsidiary of Perestroika AS. Mr. Mohn is the sole owner and director of Perestroika AS and is the beneficial owner of all securities owned by Perestroika AS and Perestroika (Cyprus) Ltd. While this change in the form of Perestroika AS's and Mr. Mohn's beneficial ownership is exempt from reporting, this Form 4 is being voluntarily filed to report this change.

F1 · price: On June 26, 2018, Perestroika AS transferred 660,000 of its Shares of Transocean Ltd. (the "Company") to Perestroika (Cyprus) Ltd. Perestroika (Cyprus) Ltd. is a wholly owned subsidiary of Perestroika AS. Mr. Mohn is the sole owner and director of Perestroika AS and is the beneficial owner of all securities owned by Perestroika AS and Perestroika (Cyprus) Ltd. While this change in the form of Perestroika AS's and Mr. Mohn's beneficial ownership is exempt from reporting, this Form 4 is being voluntarily filed to report this change.