16 institutions reported holding $8.6M of TESCO PLC SPONSORED ADR (TSCDY) in SEC 13F filings for 2026-06-30. Largest institutional holders: GREAT LAKES ADVISORS, LLC ($3.6M), Ativo Capital Management LLC ($1.6M), RHUMBLINE ADVISERS ($1.1M), Calydon Capital ($656,166), CHICAGO TRUST Co NA ($487,355). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GREAT LAKES ADVISORS, LLC | $3.6M | 197,487 | Added |
| 2 | Ativo Capital Management LLC | $1.6M | 88,537 | Added |
| 3 | RHUMBLINE ADVISERS | $1.1M | 60,844 | Added |
| 4 | Calydon Capital | $656,166 | 35,700 | Trimmed |
| 5 | CHICAGO TRUST Co NA | $487,355 | 26,684 | Added |
| 6 | GAMMA Investing LLC | $360,450 | 19,611 | Added |
| 7 | Sterling Capital Management LLC | $224,102 | 12,270 | New |
| 8 | ATLAS CAPITAL ADVISORS INC. | $201,169 | 10,945 | Trimmed |
| 9 | HANTZ FINANCIAL SERVICES, INC. | $128,000 | 6,950 | Hold |
| 10 | PNC Financial Services Group, Inc. | $68,429 | 3,723 | Added |
| 11 | First Command Advisory Services, Inc. | $28,839 | 1,556 | New |
| 12 | Salomon & Ludwin, LLC | $14,668 | 795 | Trimmed |
| 13 | Ancora Advisors LLC | $7,205 | 392 | Trimmed |
| 14 | IMA Advisory Services, Inc. | $4,017 | 216 | Added |
| 15 | Gleason Group, Inc. | $3,050 | 167 | New |
| 16 | YOUSIF CAPITAL MANAGEMENT, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30