6 institutions reported holding $950,884 of SUBSEA 7 SA (SUBCY) in SEC 13F filings for 2026-06-30. Largest institutional holders: O'Brien Greene & Co. Inc ($733,164), RHUMBLINE ADVISERS ($109,322), GAMMA Investing LLC ($94,352), IMA Advisory Services, Inc. ($13,224), PNC Financial Services Group, Inc. ($822). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | O'Brien Greene & Co. Inc | $733,164 | 21,400 | Hold |
| 2 | RHUMBLINE ADVISERS | $109,322 | 3,191 | Trimmed |
| 3 | GAMMA Investing LLC | $94,352 | 2,754 | Added |
| 4 | IMA Advisory Services, Inc. | $13,224 | 386 | New |
| 5 | PNC Financial Services Group, Inc. | $822 | 24 | New |
| 6 | Golden State Equity Partners | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30