Who owns GEOSPACE TECHNOLOGIES CORP?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of GEOS from SEC Form 13F filings across 84 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 84 institutions disclosed 5.2M shares of GEOSPACE TECHNOLOGIES CORP worth $28.0M — about 39.9% of shares outstanding; the largest disclosed holder is Tieton Capital Management, LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
84
13F holders
$28.0M
value, 2026 filers
39.9%
of shares outstanding (5.2M sh)
21
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of GEOS's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Tieton Capital Management, LLC | 907,265 | $6,142 | 0.0% | 7% | -0.5% |
| 2 | GRACE & WHITE INC /NY | 673,236 | $4.6M | 0.7% | 5.2% | +42.3% |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 515,067 | $3.5M | 0.0% | 4% | -10.7% |
| 4 | DIMENSIONAL FUND ADVISORS LP | 392,423 | $2.7M | 0.0% | 3% | -20.1% |
| 5 | MARSHALL WACE, LLP | 301,916 | $2.0M | 0.0% | 2.3% | +59.9% |
| 6 | BlackRock, Inc. | 231,765 | $1.6M | 0.0% | 1.8% | +2.7% |
| 7 | US BANCORP \DE\ | 212,766 | $1.4M | 0.0% | 1.6% | +67.4% |
| 8 | SEI INVESTMENTS CO | 199,365 | $1.3M | 0.0% | 1.5% | -51.5% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 164,180 | $1.1M | 0.0% | 1.3% | +7.9% |
| 10 | STATE STREET CORP | 163,075 | $1.1M | 0.0% | 1.3% | +19.2% |
| 11 | De Lisle Partners LLP | 147,133 | $998,297 | 0.1% | 1.1% | 0.0% |
| 12 | ROBOTTI ROBERTNEW | 128,436 | $869,512 | 0.1% | 1% | new |
| 13 | TWO SIGMA INVESTMENTS, LP | 82,184 | $556,386 | 0.0% | 0.6% | +11.2% |
| 14 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 79,693 | $539,522 | 0.0% | 0.6% | +1.1% |
| 15 | VANGUARD FIDUCIARY TRUST CO | 76,586 | $518,487 | 0.0% | 0.6% | +0.7% |
| 16 | Glenorchy Capital Ltd | 68,488 | $463,666 | 0.0% | 0.5% | -60.5% |
| 17 | CITADEL ADVISORS LLC | 58,018 | $392,782 | 0.0% | 0.4% | +77.3% |
| 18 | EagleClaw Capital Managment, LLC | 50,015 | $338,602 | 0.0% | 0.4% | -39.0% |
| 19 | RENAISSANCE TECHNOLOGIES LLCNEW | 44,299 | $299,904 | 0.0% | 0.3% | new |
| 20 | ACADIAN ASSET MANAGEMENT LLCNEW | 42,713 | $286 | 0.0% | 0.3% | new |
| 21 | IRONWOOD INVESTMENT MANAGEMENT LLC | 36,279 | $245,609 | 0.1% | 0.3% | +0.7% |
| 22 | JACOBS LEVY EQUITY MANAGEMENT, INCNEW | 35,573 | $240,829 | 0.0% | 0.3% | new |
| 23 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 33,029 | $223,606 | 0.0% | 0.3% | -77.4% |
| 24 | Kingsview Wealth Management, LLC | 31,283 | $211,786 | 0.0% | 0.2% | +10.5% |
| 25 | HRT FINANCIAL LPNEW | 30,656 | $207 | 0.0% | 0.2% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.