SEC Form 4 · Updated Daily

RIG

Transocean Ltd. Ownership

Insider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.

FinancialsOwnership

Current Reporting Owners

OwnerRoleShares OwnedAs OfLast Activity
PerestroikaDirector96,574,8942025-11-24P
Perestroika (Cyprus) Ltd10%+ Owner · Director96,574,8942025-11-24P
THIGPEN JEREMY DDirector · Officer2,614,5482026-03-03F
Adamson KeelanDirector · Officer1,600,8842026-05-04F
Long Brady KOfficer1,125,4382026-05-21S
Vayda Robert ThaddeusOfficer352,6352026-03-03F
Mackenzie Roderick JamesOfficer268,0252026-03-04S
Pack JasonOfficer262,1032026-03-03F
DEATON CHAD CDirector237,4212026-07-02P
Mohn Frederik WilhelmDirector78,9042026-05-26F
Lacey William F.Officer61,4192026-05-26F

Recent Filings

DateOwnerActivitySharesPriceOwned After
2026-07-02DEATON CHAD COpen-market buy35,000$4.95237,421
2026-05-26Mohn Frederik WilhelmTax withholding25,597$6.7078,904
2026-05-26DEATON CHAD CTax withholding20,932$6.70202,421
2026-05-26Lacey William F.Tax withholding20,934$6.7061,419
2026-05-22MERKSAMER SAMUEL J.Grant / award (derivative)30,435$0.0030,435
2026-05-22Barker Glyn AnthonyGrant / award (derivative)30,435$0.0030,435
2026-05-22Curado Frederico F.Grant / award (derivative)30,435$0.0030,435
2026-05-22DELL'OSSO DOMENIC J JRGrant / award (derivative)30,435$0.0030,435
2026-05-22INTRIERI VINCENT JGrant / award (derivative)30,435$0.0030,435
2026-05-22CHANG VANESSA C LGrant / award (derivative)30,435$0.0030,435
2026-05-22Mohn Frederik WilhelmGrant / award (derivative)30,435$0.0030,435
2026-05-22Mohn Frederik WilhelmOption exercise82,353$6.81104,501
2026-05-22DEATON CHAD CGrant / award (derivative)30,435$0.0030,435
2026-05-22DEATON CHAD COption exercise82,353$6.81223,353
2026-05-22Lacey William F.Grant / award (derivative)30,435$0.0030,435
2026-05-22Lacey William F.Option exercise82,353$6.8182,353
2026-05-21Long Brady KOpen-market sale81,741$7.451,125,438
2026-05-04Adamson KeelanTax withholding71,556$6.821,600,884
2026-05-01Adamson KeelanOption exercise180,931$0.001,672,440
2026-03-04Mackenzie Roderick JamesOpen-market sale78,370$6.36268,025
2026-03-03Mackenzie Roderick JamesTax withholding62,886$6.12346,395
2026-03-03THIGPEN JEREMY DTax withholding245,556$6.122,614,548
2026-03-03Long Brady KTax withholding87,689$6.121,238,098
2026-03-03Pack JasonTax withholding27,962$6.12262,103
2026-03-03Adamson KeelanTax withholding127,878$6.121,491,509
2026-03-03Vayda Robert ThaddeusTax withholding62,970$6.12352,635
2026-03-01Mackenzie Roderick JamesOption exercise70,876$6.25409,281
2026-03-01Mackenzie Roderick JamesOption exercise50,663$6.25338,405
2026-03-01Mackenzie Roderick JamesOption exercise34,924$6.25287,742
2026-03-01THIGPEN JEREMY DOption exercise171,821$6.252,860,104
2026-03-01THIGPEN JEREMY DOption exercise245,640$6.252,688,283
2026-03-01THIGPEN JEREMY DOption exercise193,518$6.252,442,643
2026-03-01Long Brady KOption exercise98,406$6.251,325,787
2026-03-01Long Brady KOption exercise66,993$6.251,227,381
2026-03-01Long Brady KOption exercise52,778$6.251,160,388
2026-03-01Pack JasonOption exercise32,324$6.25290,065
2026-03-01Pack JasonOption exercise2,901$6.25257,741
2026-03-01Pack JasonOption exercise19,210$6.25254,840
2026-03-01Pack JasonOption exercise15,134$6.25235,630
2026-03-01Adamson KeelanOption exercise146,048$6.251,619,387

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.