Constellation Oil Services Holding S.A.

Shareholders of Constellation Oil Services Holding S.A.

Shareholder disclosure for Constellation Oil Services Holding S.A. has changed materially across two debt restructurings and a 2025 stock listing. A Form T-3 filed with the U.S. Securities and Exchange Commission describes the equity resulting from the second restructuring (closed 2 September 2022) as held approximately 47.0% by creditors receiving equity under the New Participating 2024 Bonds, 27.0% by legacy pre-restructuring shareholders, and 26.0% by holders of subscription warrants, with creditors together holding roughly 73% of the company at closing. Since the company’s admission to trading on Euronext Growth Oslo on 6 March 2025 (later uplisted to Euronext Oslo Børs on 26 May 2026), shares have also been held through Norwegian depositary receipts in the VPS system, widening the shareholder base beyond the original restructuring participants; a retail secondary offering was run specifically to meet Oslo Børs’s 500-shareholder minimum. A market-data listing compiled after the 2025 listing (not an official filing) shows Constellation Holdco SA as the largest reported holder (around 46.6%), followed by the VPS nominee/registrar account Equro Issuer Services AS (around 21.4%), Capital Research & Management Co. (around 11.0%) and Lux Oil & Gas International S.à r.l. — the entity recorded as this company’s immediate parent in Zavia’s on-file group data — at around 8.8%. Because Equro Issuer Services AS is a nominee/registrar account rather than a single beneficial owner, and the aggregator does not date its figures, these percentages should be treated as indicative rather than a confirmed cap table.

Ultimate beneficial ownership

No individual has been identified in an authoritative filing as the ultimate beneficial owner of Constellation Oil Services Holding S.A. Ownership is dispersed across former creditors, warrant holders, institutional asset managers and, since March 2025, public depositary-receipt holders; the largest single reported holder, Constellation Holdco SA, is itself a corporate vehicle whose own ownership was not verified in this review. No definitive UBO conclusion is presented.

Data availability

Shareholder information for this company is Partial: the post-restructuring capital structure is confirmed by an SEC filing dated 2022, but current holdings rely on a secondary market-data source rather than a Luxembourg RBE extract or a company-published shareholder register, and no beneficial-ownership filing was located for the post-listing period.

Sources

• Cleary Gottlieb, "Constellation’s Second Restructuring of $1.84 Billion in Total Indebtedness" — https://www.clearygottlieb.com/news-and-insights/news-listing/constellations-second-restructuring-of-1-84-billion-in-total-indebtedness (retrieved 2026-09-10)
• SEC EDGAR, Constellation Oil Services Holding S.A., Form T-3 (FY2022) — https://www.sec.gov/Archives/edgar/data/1784823/000121390022024581/ea159451-t3_constellation.htm (retrieved 2026-09-10)
• Euronext, "Constellation Announces Listing on Euronext Growth Oslo," 6 March 2025 — https://live.euronext.com/en/products/equities/company-news/2025-03-06-constellation-announces-listing-euronext-growth-oslo (retrieved 2026-09-10)
• MarketScreener, Constellation Oil Services Holding S.A. shareholders page — https://www.marketscreener.com/quote/stock/CONSTELLATION-OIL-SERVICE-208422738/company-shareholders/ (retrieved 2026-09-10; secondary market-data aggregator, not an official filing)

Directors and officers of Constellation Oil Services Holding S.A.

Two distinct officer records exist for this company and they conflict. Zavia’s on-file registry feed (synced 11 August 2026) lists five active executive-title records with no appointment or resignation dates: Leduvy De Pina Gouvêa Filho as Chief Executive Officer, Gerson Peccioli as Chief FPSO Operations Officer, José Maurício De Faria as Chief Administrative Officer, José Moreira as Chief Commercial Officer, and Guilherme Ribeiro Vieira Lima as Chief Financial Officer and Principal Accounting Officer. However, the company’s own investor-relations website currently names a different executive team: Rodrigo Ribeiro as Chief Executive Officer, Daniel Rachman as Chief Financial Officer, Monique Fares as Deputy Chief Financial Officer, Silvia Ruggeri as Chief People and Information Officer, Thiago Schimmelpfennig as Chief Commercial and Innovation Officer, Rodrigo Jokubauskas as Chief Operating Officer, Luis Guilherme Senna as Chief Legal Officer, and Leonardo Guimarães as Chief Technical Officer. None of the five names in the on-file feed appear on the company’s current management-team page, so the on-file executive data should be treated as stale — most likely reflecting the group’s leadership around the 2018-2019 restructuring era — rather than current.

The company’s investor-relations site also lists a six-member Board of Directors: Maria Gordon (Chair, also chairs the Strategy Committee), Bruno Serapião (Chair, Sustainability, HSE and Operations Committee, and Executive Chairman of Hidrovias do Brasil S/A), Jorge Tagle (Chair, Compensation and Nomination Committee), Jaap Jan Prins, Bertrand de Fays and Anne Maillard. De Fays and Maillard are described as Luxembourg-based corporate-services professionals, consistent with a likely role as the entity’s Luxembourg resident directors. Nationality is not disclosed for any officer or director in the sources reviewed.

Recent officer changes

• 1 August 2025: Nicholas Simon Procopenko was appointed as a director under Article 10.8 of the Articles of Association, succeeding Attila Sénig as a Luxembourg director alongside continuing director Bertrand de Fays; Mr. Sénig resigned. (Source: Euronext/Reuters company news, 1 August 2025.) Note: the company’s board-of-directors webpage, as currently published, does not list Mr. Procopenko among its six directors shown, which may reflect a further unannounced change or an unupdated page; this could not be resolved from the sources reviewed.

Data availability

Officer and director information for this company is Partial and, at the executive level, Conflicting: Zavia’s on-file registry feed and the company’s own investor-relations site disagree on who holds the top executive roles, and the company’s published board list does not fully reconcile with its own most recent director-change announcement. Nationality and appointment/resignation dates are not disclosed for the current officers in the sources reviewed.

Sources

• Company investor relations, Board of Directors — https://ir.theconstellation.com/corporate-governance/board-of-directors/ (retrieved 2026-09-10)
• Company investor relations, Management Team — https://ir.theconstellation.com/corporate-governance/management-team/ (retrieved 2026-09-10)
• Euronext/Reuters, "Constellation Announces Board of Directors Change," 1 August 2025 — https://live.euronext.com/en/products/equities/company-news/2025-08-01-constellation-announces-board-directors-change (retrieved 2026-09-10)
• Zavia on-file registry feed (company ID 89796653), synced 2026-08-11

Group structure of Constellation Oil Services Holding S.A.

Zavia’s on-file corporate-linkage data shows Lux Oil & Gas International S.à r.l. (Luxembourg, registration number B164736) as this company’s immediate parent. That record predates the company’s March 2025 public listing: a post-listing market-data source (not an official filing) shows Lux Oil & Gas International S.à r.l. holding only around 8.8% of the company’s shares — a minority position, not a controlling parent stake — with the largest reported post-listing holder being a different entity, Constellation Holdco SA (around 46.6%). The on-file "immediate parent" label should therefore be treated as historical rather than current, and no single confirmed ultimate parent is presented here.

Beneath Constellation Oil Services Holding S.A., the on-file structure shows one direct subsidiary, Constellation Netherlands B.V. (Netherlands, registration number 55034373), which in turn holds seven further Dutch entities: NB Constellation B.V., Positive Investment Management B.V., Palase Management B.V., CBW B.V., Brava Drilling B.V., London Tower Management B.V. and Alaskan & Atlantic Rigs B.V. Several of these names correspond to the group’s drillship fleet (for example Brava Drilling B.V. to the Brava Star drillship), consistent with a structure of single-purpose Dutch vessel-owning entities beneath a Netherlands sub-holding company, though this correspondence was not independently confirmed against the Dutch Kamer van Koophandel register in this review. Ownership percentages for these relationships are not disclosed in the source data.

The group’s Brazilian operating entities — which hold the Petrobras and Brava Energia drilling contracts and were named as debtors in the Brazilian restructurings, such as Serviços de Petróleo Constellation S.A. — do not appear in Zavia’s on-file group structure at all. This is a gap in the on-file data, not evidence that no such entities exist.

Verified corporate relationships

Recent structural changes

• 2 September 2022: The Rio de Janeiro Business Court declared the obligations of the group’s amended judicial-reorganization plan fulfilled, ending the second restructuring; creditors received approximately 73% of the company’s equity at closing under that plan. (Source: SEC EDGAR Form T-3, 2022; Cleary Gottlieb.)
• 7 November 2024: New 9.375% Senior Secured Notes due 2029 were issued under a fresh indenture, refinancing the notes put in place at the 2022 restructuring. (Source: PR Newswire consent-solicitation releases, February-March 2026.)
• 6 March 2025: Depositary receipts representing the company’s common shares were admitted to trading on Euronext Growth Oslo, introducing a public shareholder base for the first time; the listing uplisted to Euronext Oslo Børs on 26 May 2026. (Source: Euronext company news.)

Data availability

Corporate-linkage information for this company is Partial: the on-file parent/subsidiary chain is plausible and internally consistent but appears to predate the 2025 listing and was not independently re-verified against the Luxembourg RCS or Dutch KVK registers in this review; the group’s Brazilian operating subsidiaries are absent from the on-file structure entirely.

Sources

• Zavia on-file corporate-linkage data (company ID 89796653), synced 2026-08-11
• MarketScreener, Constellation Oil Services Holding S.A. shareholders page — https://www.marketscreener.com/quote/stock/CONSTELLATION-OIL-SERVICE-208422738/company-shareholders/ (retrieved 2026-09-10; secondary aggregator, not an official filing)
• SEC EDGAR, Form T-3 (FY2022) — https://www.sec.gov/Archives/edgar/data/1784823/000121390022024581/ea159451-t3_constellation.htm
• Cleary Gottlieb, "Constellation’s Second Restructuring of $1.84 Billion in Total Indebtedness" — https://www.clearygottlieb.com/news-and-insights/news-listing/constellations-second-restructuring-of-1-84-billion-in-total-indebtedness
• PR Newswire, consent solicitation releases, February-March 2026 — https://www.prnewswire.com/news-releases/constellation-oil-services-holding-sa-consent-solicitation-302697556.html
• Euronext company news, 6 March 2025 and 26 May 2026 listing announcements