GEOSPACE TECHNOLOGIES CORP (GEOS) Institutional Ownership Changes & 13F Activity
GEOSPACE TECHNOLOGIES CORP (GEOS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Susquehanna International Group, Llp, Sei Investments Co, De Lisle Partners Llp, State Street Corp, and Bridgeway Capital Management, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Sunbelt Securities, Inc. | Buy | +300 | — | 300 | $5.07K | Q4 2025 | Feb 20, 2026 |
| Susquehanna International Group, Llp | Buy | +231,285 | — | 231,285 | $3.91M | Q4 2025 | Feb 17, 2026 |
| Bridgeway Capital Management, Llc | Buy | +114,707 | — | 114,707 | $1.94M | Q4 2025 | Feb 17, 2026 |
| Millennium Management Llc | Buy | +62,020 | — | 62,020 | $1.05M | Q4 2025 | Feb 17, 2026 |
| Citadel Advisors Llc | Buy | +58,726 | — | 58,726 | $993.06K | Q4 2025 | Feb 17, 2026 |
| Two Sigma Investments, Lp | Buy | +58,288 | — | 58,288 | $985.65K | Q4 2025 | Feb 17, 2026 |
| 683 Capital Management, Llc | Buy | +39,252 | — | 39,252 | $663.75K | Q4 2025 | Feb 17, 2026 |
| Northern Trust Corp | Buy | +38,938 | — | 38,938 | $658.44K | Q4 2025 | Feb 17, 2026 |
| Qube Research & Technologies Ltd | Buy | +32,251 | — | 32,251 | $545.36K | Q4 2025 | Feb 17, 2026 |
| Exoduspoint Capital Management, Lp | Buy | +25,049 | — | 25,049 | $423.58K | Q4 2025 | Feb 17, 2026 |
| Xtx Topco Ltd | Buy | +22,936 | — | 22,936 | $387.85K | Q4 2025 | Feb 17, 2026 |
| Disciplined Growth Investors | Sell | -22,021 | -1.9% | 1,131,568 | $19.13M | Q4 2025 | Feb 17, 2026 |
| Bank Of America Corp | Buy | +14,665 | — | 14,665 | $247.99K | Q4 2025 | Feb 17, 2026 |
| Tannin Capital Llc | Buy | +13,545 | — | 13,545 | $229.05K | Q4 2025 | Feb 17, 2026 |
| Balyasny Asset Management L.P. | Buy | +10,530 | — | 10,530 | $178.06K | Q4 2025 | Feb 17, 2026 |
| Tower Research Capital Llc (Trc) | Buy | +5,230 | — | 5,230 | $88.44K | Q4 2025 | Feb 17, 2026 |
| Osaic Holdings, Inc. | Buy | +2,365 | — | 2,365 | $39.99K | Q4 2025 | Feb 17, 2026 |
| Fmr Llc | Buy | +1,111 | — | 1,111 | $18.79K | Q4 2025 | Feb 17, 2026 |
| Parvin Asset Management, Llc | Buy | +750 | — | 750 | $12.68K | Q4 2025 | Feb 17, 2026 |
| Royal Bank Of Canada | Buy | +711 | — | 711 | $12.00K | Q4 2025 | Feb 17, 2026 |
| Jones Financial Companies Lllp | Buy | +580 | — | 580 | $9.81K | Q4 2025 | Feb 17, 2026 |
| Hurley Capital, Llc | Buy | +206 | — | 206 | $3.48K | Q4 2025 | Feb 17, 2026 |
| Optiver Holding B.V. | Buy | +6 | — | 6 | $101.00 | Q4 2025 | Feb 17, 2026 |
| Sei Investments Co | Buy | +196,956 | — | 196,956 | $3.33M | Q4 2025 | Feb 13, 2026 |
| De Lisle Partners Llp | Buy | +147,133 | — | 147,133 | $2.48M | Q4 2025 | Feb 13, 2026 |
| State Street Corp | Buy | +125,936 | — | 125,936 | $2.13M | Q4 2025 | Feb 13, 2026 |
| American Century Companies Inc | Buy | +30,141 | — | 30,141 | $509.68K | Q4 2025 | Feb 13, 2026 |
| Barclays Plc | Buy | +23,344 | — | 23,344 | $394.75K | Q4 2025 | Feb 13, 2026 |
| Omers Administration Corp | Buy | +20,100 | — | 20,100 | $339.89K | Q4 2025 | Feb 13, 2026 |
| Hudson Bay Capital Management Lp | Buy | +18,714 | — | 18,714 | $316.45K | Q4 2025 | Feb 13, 2026 |
Frequently asked questions about GEOS activity
Which institutional owners are buying GEOS?
Institutional owners buying GEOS include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in GEOS activity?
"Buy" means an investor increased their reported position in GEOS compared to the prior reporting period. This reflects growing exposure to GEOSPACE TECHNOLOGIES CORP (GEOS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in GEOS increasing?
Institutional interest in GEOS can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related GEOS Institutional Insights
- GEOS Overview
- GEOS 13F Institutional Holders
- GEOS Superinvestors
- Energy Sector Institutional Ownership
- Energy Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Energy Stocks By Institutional Investors
- Most Sold Energy Stocks By Institutional Investors
- GEOS Insider Trading & SEC Form 4 Activity
- GEOS Articles
- Top Institutional Investor Stock Rankings