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TRANSOCEAN LTD (RIG)

Institutional ownership, SEC filings and insider activity

Sector: Energy · SEC CIK 0001451505 · EDGAR filings · Updated 2026-07-07

TRANSOCEAN LTD (RIG) has reported institutional ownership of 80.6%, with 534 institutional managers holding positions valued at $5.97B per the latest 13F reporting period. SEC filings include an active material impairment disclosure (8-K Item 2.06), notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), substantial-doubt (going concern) disclosure per the filings, triggering event that accelerates or increases a direct financial obligation (8-K Item 2.04).

Institutional ownership
80.6%
Institutional managers
534
Reported 13F value
$5.97B
Insider activity
65 trans.
$49.5M net buying
Data flags
4 active
from SEC filings

Latest updates

Institutional ownership overview

According to SEC 13F filings tracked by Sightfile, TRANSOCEAN LTD has 534 institutional holders and institutional ownership of 80.6%.

Insider activity

Insiders reported 65 transactions (7 buys, 16 sells) across 10 reporting insiders, with a net reported value of $49.5M.

Data flags from SEC filings

Active material impairment disclosure (8-K Item 2.06), most recently filed 2025-08-27 (recurring since 2020-05-11) — source filing. The authoritative details are those stated in the filing itself.
Active substantial-doubt (going concern) disclosure per the filings, most recently filed 2020-11-04 (recurring since 2020-11-04) — source filing. The authoritative details are those stated in the filing itself.
Active notice of delisting or failure to satisfy a continued listing rule (8-K Item 3.01), most recently filed 2020-10-19 (recurring since 2020-10-19) — source filing. The authoritative details are those stated in the filing itself.
Active triggering event that accelerates or increases a direct financial obligation (8-K Item 2.04), most recently filed 2020-10-07 (recurring since 2020-09-08) — source filing. The authoritative details are those stated in the filing itself.

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See full history, cross-references and alerts on Sightfile
Sightfile provides information only — not investment advice, recommendations, or an assessment of any security. Data is derived from official public sources (SEC EDGAR and U.S. government agencies), may contain errors or delays, and should be verified against the source filing before relying on it.
Data sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-07-07.