Reporting Manager
Adage Capital Management, L.P.
Symbol
SDRL
Shares outstanding
62,267,579 shares
Disclosed Ownership
3,138,286 shares
Ownership
5%
Form type
SCHEDULE 13G/A
Filing time
12 Aug 2025, 09:04:20 UTC
Date of event
30 Jun 2025
Previous filing
12 May 2025

Sponsored

Quoteable Key Fact

"Adage Capital Management, L.P. disclosed 5% ownership in Seadrill Ltd Common Shares, par value $0.01 per share (SDRL) on 30 Jun 2025."

Quick Takeaways

  • Adage Capital Management, L.P. filed SCHEDULE 13G/A for Seadrill Ltd Common Shares, par value $0.01 per share (SDRL).
  • Disclosed ownership: 5%.
  • Date of event: 30 Jun 2025.

What Changed

  • Previous schedule filing date: 12 May 2025.
  • Current filing was accepted on 12 Aug 2025, 09:04.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Official SEC Source

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (3)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Adage Capital Management, L.P. 5% 3,138,286 0 3,138,286 /s/ Robert Atchinson By: Adage Capital Partners LLC, its General Partner, By: Robert Atchinson, its Managing Member
Robert Atchinson 5% 3,138,286 0 3,138,286 /s/ Robert Atchinson Robert Atchinson, individually
Phillip Gross 5% 3,138,286 0 3,138,286 /s/ Phillip Gross Phillip Gross, individually