Who Owns GEOSPACE TECHNOLOGIES CORP (GEOS)? -- Institutional Holders (2026-06-30)
102 institutions reported holding $36.2M of GEOSPACE TECHNOLOGIES CORP (GEOS) in SEC 13F filings for 2026-06-30. Largest institutional holders: Tieton Capital Management, LLC ($6.1M), GRACE & WHITE INC /NY ($4.6M), VANGUARD GROUP INC ($4.0M), DIMENSIONAL FUND ADVISORS LP ($2.7M), MARSHALL WACE, LLP ($2.0M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|
| 1 | Tieton Capital Management, LLC | $6.1M | 907,265 | Trimmed |
| 2 | GRACE & WHITE INC /NY | $4.6M | 673,236 | Added |
| 3 | VANGUARD GROUP INC | $4.0M | 596,679 | Trimmed |
| 4 | DIMENSIONAL FUND ADVISORS LP | $2.7M | 392,423 | Trimmed |
| 5 | MARSHALL WACE, LLP | $2.0M | 301,916 | Added |
| 6 | BlackRock, Inc. | $1.6M | 231,765 | Added |
| 7 | US BANCORP \DE\ | $1.4M | 212,766 | Added |
| 8 | SEI INVESTMENTS CO | $1.3M | 199,365 | Trimmed |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | $1.1M | 164,180 | Added |
| 10 | STATE STREET CORP | $1.1M | 163,075 | Added |
| 11 | De Lisle Partners LLP | $998,297 | 147,133 | Hold |
| 12 | ROBOTTI ROBERT | $869,512 | 128,436 | New |
| 13 | CITADEL ADVISORS LLC | $710,295 | 104,918 | Added |
| 14 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $590,540 | 87,229 | Trimmed |
| 15 | TWO SIGMA INVESTMENTS, LP | $556,386 | 82,184 | Added |
| 16 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $539,522 | 79,693 | Added |
| 17 | Glenorchy Capital Ltd | $463,666 | 68,488 | Trimmed |
| 18 | JANE STREET GROUP, LLC | $452,040 | 66,771 | New |
| 19 | IMC-Chicago, LLC | $418,603 | 61,832 | Added |
| 20 | EagleClaw Capital Managment, LLC | $338,602 | 50,015 | Trimmed |
| 21 | RENAISSANCE TECHNOLOGIES LLC | $299,904 | 44,299 | New |
| 22 | ACADIAN ASSET MANAGEMENT LLC | $286,000 | 42,713 | New |
| 23 | IRONWOOD INVESTMENT MANAGEMENT LLC | $245,609 | 36,279 | Added |
| 24 | JACOBS LEVY EQUITY MANAGEMENT, INC | $240,829 | 35,573 | New |
| 25 | Kingsview Wealth Management, LLC | $211,786 | 31,283 | Added |
Source: SEC Form 13F filings · as of 2026-06-30