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.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Sunbelt Securities, Inc.Buy+300—300$5.07KQ4 2025Feb 20, 2026
Susquehanna International Group, LlpBuy+231,285—231,285$3.91MQ4 2025Feb 17, 2026
Bridgeway Capital Management, LlcBuy+114,707—114,707$1.94MQ4 2025Feb 17, 2026
Millennium Management LlcBuy+62,020—62,020$1.05MQ4 2025Feb 17, 2026
Citadel Advisors LlcBuy+58,726—58,726$993.06KQ4 2025Feb 17, 2026
Two Sigma Investments, LpBuy+58,288—58,288$985.65KQ4 2025Feb 17, 2026
683 Capital Management, LlcBuy+39,252—39,252$663.75KQ4 2025Feb 17, 2026
Northern Trust CorpBuy+38,938—38,938$658.44KQ4 2025Feb 17, 2026
Qube Research & Technologies LtdBuy+32,251—32,251$545.36KQ4 2025Feb 17, 2026
Exoduspoint Capital Management, LpBuy+25,049—25,049$423.58KQ4 2025Feb 17, 2026
Xtx Topco LtdBuy+22,936—22,936$387.85KQ4 2025Feb 17, 2026
Disciplined Growth InvestorsSell-22,021-1.9%1,131,568$19.13MQ4 2025Feb 17, 2026
Bank Of America CorpBuy+14,665—14,665$247.99KQ4 2025Feb 17, 2026
Tannin Capital LlcBuy+13,545—13,545$229.05KQ4 2025Feb 17, 2026
Balyasny Asset Management L.P.Buy+10,530—10,530$178.06KQ4 2025Feb 17, 2026
Tower Research Capital Llc (Trc)Buy+5,230—5,230$88.44KQ4 2025Feb 17, 2026
Osaic Holdings, Inc.Buy+2,365—2,365$39.99KQ4 2025Feb 17, 2026
Fmr LlcBuy+1,111—1,111$18.79KQ4 2025Feb 17, 2026
Parvin Asset Management, LlcBuy+750—750$12.68KQ4 2025Feb 17, 2026
Royal Bank Of CanadaBuy+711—711$12.00KQ4 2025Feb 17, 2026
Jones Financial Companies LllpBuy+580—580$9.81KQ4 2025Feb 17, 2026
Hurley Capital, LlcBuy+206—206$3.48KQ4 2025Feb 17, 2026
Optiver Holding B.V.Buy+6—6$101.00Q4 2025Feb 17, 2026
Sei Investments CoBuy+196,956—196,956$3.33MQ4 2025Feb 13, 2026
De Lisle Partners LlpBuy+147,133—147,133$2.48MQ4 2025Feb 13, 2026
State Street CorpBuy+125,936—125,936$2.13MQ4 2025Feb 13, 2026
American Century Companies IncBuy+30,141—30,141$509.68KQ4 2025Feb 13, 2026
Barclays PlcBuy+23,344—23,344$394.75KQ4 2025Feb 13, 2026
Omers Administration CorpBuy+20,100—20,100$339.89KQ4 2025Feb 13, 2026
Hudson Bay Capital Management LpBuy+18,714—18,714$316.45KQ4 2025Feb 13, 2026
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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.