GEOSPACE TECHNOLOGIES CORP - GEOS

Detailed investor-level table based on 13F positions.

Shareholders (13F)

Quarter: Q4 2025 · Compare: Q3 2025
13D/13G major owners: Ownership tab.
Methodology: Market value and % of portfolio use SEC reported VALUE ($000). For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received. Details.
Rows: 0
Investor History Status Shares held Market value ($000) % of portfolio Previous % Rank Change in shares % change in shares Source Date reported
DISCIPLINED GROWTH INVESTORS INC /MN History Reduced 1,131,568 19,134 0.37% 0.4% 1 -22,021 -1.91% Q4 2025 Feb 17, 2026
Tieton Capital Management, LLC History Reduced 884,176 14,951 5.11% 5.85% 2 -4,160 -0.47% Q4 2025 Feb 10, 2026
VANGUARD GROUP INC History Added to 648,222 10,961 0.0% 0.0% 3 +13,759 2.17% Q4 2025 Jan 29, 2026
Moors & Cabot, Inc. History Reduced 575,950 9,739 0.42% 0.59% 4 -138,800 -19.42% Q4 2025 Feb 10, 2026
DIMENSIONAL FUND ADVISORS LP History Reduced 544,099 9,201 0.0% 0.0% 5 -84,305 -13.42% Q4 2025 Feb 12, 2026
First Eagle Investment Management, LLC History Reduced 430,273 7,275 0.01% 0.02% 6 -92,591 -17.71% Q4 2025 Feb 04, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP History Reduced 313,185 5,295 0.0% 0.0% 7 -121,059 -27.88% Q4 2025 Feb 17, 2026
GRACE & WHITE INC /NY History Reduced 307,795 5,204 0.93% 1.05% 8 -6,751 -2.15% Q4 2025 Jan 26, 2026
BlackRock, Inc. History Added to 221,106 3,738 0.0% 0.0% 9 +13,941 6.73% Q4 2025 Feb 12, 2026
SEI INVESTMENTS CO History New 196,956 3,330 0.0% 10 +196,956 New Q4 2025 Feb 13, 2026
Glenorchy Capital Ltd History Reduced 170,992 2,891 0.18% 0.51% 11 -11,268 -6.18% Q4 2025 Jan 30, 2026
De Lisle Partners LLP History Added to 147,133 2,482 0.32% 0.33% 12 +2,899 2.01% Q4 2025 Feb 13, 2026
GEODE CAPITAL MANAGEMENT, LLC History Added to 146,107 2,472 0.0% 0.0% 13 +3,507 2.46% Q4 2025 Feb 09, 2026
US BANCORP \DE\ History Added to 127,134 2,149 0.0% 0.0% 14 +3,100 2.5% Q4 2025 Jan 30, 2026
CITADEL ADVISORS LLC History Reduced 126,026 2,131 0.0% 0.0% 15 -75,196 -37.37% Q4 2025 Feb 17, 2026
STATE STREET CORP History Added to 125,936 2,129 0.0% 0.0% 16 +68,247 118.3% Q4 2025 Feb 13, 2026
BRIDGEWAY CAPITAL MANAGEMENT, LLC History Reduced 114,707 1,939 0.04% 0.06% 17 -23,912 -17.25% Q4 2025 Feb 17, 2026
MILLENNIUM MANAGEMENT LLC History Reduced 62,020 1,048 0.0% 0.0% 18 -58,834 -48.68% Q4 2025 Feb 17, 2026
EagleClaw Capital Managment, LLC History No change 61,150 1,034 0.15% 0.16% 19 0 0.0% Q4 2025 Feb 10, 2026
GOLDMAN SACHS GROUP INC History Added to 60,136 1,016 0.0% 0.0% 20 +41,865 229.13% Q4 2025 Mar 25, 2026
TWO SIGMA INVESTMENTS, LP History Added to 58,288 985 0.0% 0.0% 21 +21,312 57.64% Q4 2025 Feb 17, 2026
Cambridge Investment Research Advisors, Inc. History New 58,174 984 0.0% 22 +58,174 New Q4 2025 Feb 05, 2026
Brooklyn Investment Group History New 43,799 761 0.04% 23 +43,799 New Q4 2025 Feb 12, 2026
Empowered Funds, LLC History Reduced 40,291 681 0.01% 0.01% 24 -23,912 -37.24% Q4 2025 Feb 18, 2026
683 Capital Management, LLC History New 39,252 663 0.03% 25 +39,252 New Q4 2025 Feb 17, 2026
NORTHERN TRUST CORP History Reduced 38,938 658 0.0% 0.0% 26 -786 -1.98% Q4 2025 Feb 17, 2026
Peapod Lane Capital LLC History Reduced 37,817 639 0.54% 1.44% 27 -47,187 -55.51% Q4 2025 Jan 28, 2026
IRONWOOD INVESTMENT MANAGEMENT LLC History Reduced 36,776 621 0.26% 0.3% 28 -80 -0.22% Q4 2025 Feb 12, 2026
Qube Research & Technologies Ltd History New 32,251 545 0.0% 29 +32,251 New Q4 2025 Feb 17, 2026
AMERICAN CENTURY COMPANIES INC History Reduced 30,141 509 0.0% 0.0% 30 -55,390 -64.76% Q4 2025 Feb 13, 2026
AlphaQuest LLC History Added to 27,604 466 0.03% 0.03% 31 +2,878 11.64% Q4 2025 Feb 09, 2026
ExodusPoint Capital Management, LP History New 25,049 423 0.0% 32 +25,049 New Q4 2025 Feb 17, 2026
JANE STREET GROUP, LLC History Reduced 24,918 421 0.0% 0.0% 33 -84,938 -77.32% Q4 2025 Feb 12, 2026
GSA CAPITAL PARTNERS LLP History Added to 24,520 415 0.04% 0.03% 34 +2,793 12.85% Q4 2025 Feb 06, 2026
Vestmark Advisory Solutions, Inc. History New 24,271 410 0.01% 35 +24,271 New Q4 2025 Feb 06, 2026
ELEVATION POINT WEALTH PARTNERS, LLC History New 24,271 410 0.02% 36 +24,271 New Q4 2025 Feb 12, 2026
Mraz, Amerine & Associates, Inc. History No change 24,081 407 0.06% 0.07% 37 0 0.0% Q4 2025 Feb 06, 2026
BARCLAYS PLC History Added to 23,344 394 0.0% 0.0% 38 +17,583 305.21% Q4 2025 Feb 13, 2026
XTX Topco Ltd History New 22,936 387 0.01% 39 +22,936 New Q4 2025 Feb 17, 2026
ACADIAN ASSET MANAGEMENT LLC History Added to 22,058 372 0.0% 0.0% 40 +7,916 55.98% Q4 2025 Feb 10, 2026
COMMONWEALTH EQUITY SERVICES, LLC History New 21,885 370 0.0% 41 +21,885 New Q4 2025 Feb 12, 2026
OMERS ADMINISTRATION Corp History New 20,100 339 0.0% 42 +20,100 New Q4 2025 Feb 13, 2026
Hudson Bay Capital Management LP History New 18,714 316 0.0% 43 +18,714 New Q4 2025 Feb 13, 2026
MORGAN STANLEY History Added to 17,264 291 0.0% 0.0% 44 +9,725 129.0% Q4 2025 Feb 13, 2026
FourThought Financial Partners, LLC History New 16,339 276 0.02% 45 +16,339 New Q4 2025 Feb 06, 2026
BANK OF AMERICA CORP /DE/ History Reduced 14,665 247 0.0% 0.0% 46 -9,612 -39.59% Q4 2025 Feb 17, 2026
ESSEX INVESTMENT MANAGEMENT CO LLC History No change 13,636 230 0.04% 0.04% 47 0 0.0% Q4 2025 Feb 13, 2026
Tannin Capital LLC History New 13,545 229 0.2% 48 +13,545 New Q4 2025 Feb 17, 2026
LPL Financial LLC History New 13,200 223 0.0% 49 +13,200 New Q4 2025 Feb 11, 2026
IMC-Chicago, LLC History New 12,478 211 0.0% 50 +12,478 New Q4 2025 Jan 29, 2026
MARSHALL WACE, LLP History New 11,785 199 0.0% 51 +11,785 New Q4 2025 Feb 13, 2026
WELLS FARGO & COMPANY/MN History Reduced 10,908 184 0.0% 0.0% 52 -4,318 -28.36% Q4 2025 Feb 13, 2026
BALYASNY ASSET MANAGEMENT L.P. History New 10,530 178 0.0% 53 +10,530 New Q4 2025 Feb 17, 2026
CHARLES SCHWAB INVESTMENT MANAGEMENT INC History New 10,429 176 0.0% 54 +10,429 New Q4 2025 Feb 13, 2026
UBS Group AG History Added to 6,817 115 0.0% 0.0% 55 +4,466 189.96% Q4 2025 Jan 29, 2026
CIBC Private Wealth Group LLC History Reduced 6,650 112 0.0% 0.0% 56 -350 -5.0% Q4 2025 Feb 12, 2026
Tower Research Capital LLC (TRC) History New 5,230 88 0.0% 57 +5,230 New Q4 2025 Feb 17, 2026
Kestra Advisory Services, LLC History New 3,952 66 0.0% 58 +3,952 New Q4 2025 Feb 13, 2026
CITIGROUP INC History Added to 3,309 55 0.0% 0.0% 59 +2,890 689.74% Q4 2025 Feb 13, 2026
OSAIC HOLDINGS, INC. History Added to 2,365 39 0.0% 0.0% 60 +1,327 127.84% Q4 2025 Feb 17, 2026
SIMPLEX TRADING, LLC History New 2,001 33 0.0% 61 +2,001 New Q4 2025 Feb 11, 2026
SBI Securities Co., Ltd. History Reduced 1,290 21 0.0% 0.0% 62 -173 -11.83% Q4 2025 Feb 03, 2026
Farther Finance Advisors, LLC History Added to 1,180 19 0.0% 0.0% 63 +863 272.24% Q4 2025 Jan 23, 2026
FMR LLC History No change 1,111 18 0.0% 0.0% 64 0 0.0% Q4 2025 Feb 17, 2026
CoreCap Advisors, LLC History Added to 950 16 0.0% 0.0% 65 +450 90.0% Q4 2025 Jan 13, 2026
BNP PARIBAS FINANCIAL MARKETS History Reduced 796 13 0.0% 0.0% 66 -2,657 -76.95% Q4 2025 Feb 10, 2026
Parvin Asset Management, LLC History New 750 12 0.01% 68 +750 New Q4 2025 Feb 17, 2026
ROYAL BANK OF CANADA History New 711 12 0.0% 67 +711 New Q4 2025 Feb 17, 2026
INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC History New 700 11 0.0% 69 +700 New Q4 2025 Feb 03, 2026
JONES FINANCIAL COMPANIES LLLP History Added to 580 9 0.0% 0.0% 70 +445 329.63% Q4 2025 Feb 17, 2026
HAZLETT, BURT & WATSON, INC. History New 400 7 0.0% 71 +400 New Q4 2025 Feb 10, 2026
RHUMBLINE ADVISERS History No change 439 7 0.0% 0.0% 72 0 0.0% Q4 2025 Feb 13, 2026
Aventura Private Wealth, LLC History Reduced 324 5 0.0% 0.01% 74 -1,376 -80.94% Q4 2025 Jan 07, 2026
Sunbelt Securities, Inc. History No change 300 5 0.0% 0.0% 73 0 0.0% Q4 2025 Feb 20, 2026
Hurley Capital, LLC History New 206 3 0.0% 76 +206 New Q4 2025 Feb 17, 2026
Kingdom Financial Group LLC. History New 194 3 0.0% 77 +194 New Q4 2025 Feb 06, 2026
CWM, LLC History Added to 204 3 0.0% 0.0% 75 +143 234.43% Q4 2025 Jan 26, 2026
Capital Advisors, Ltd. LLC History No change 122 2 0.0% 0.0% 78 0 0.0% Q4 2025 Jan 21, 2026
Triumph Capital Management History New 100 1 0.0% 79 +100 New Q4 2025 Feb 12, 2026
REAP Financial Group, LLC History No change 100 1 0.0% 0.0% 80 0 0.0% Q4 2025 Feb 10, 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP History Closed out 0 0 0.0% -53,499 -100.0% Q3 2025 Nov 13, 2025
Informed Momentum Co LLC History Closed out 0 0 0.1% -45,837 -100.0% Q3 2025 Nov 14, 2025
Squarepoint Ops LLC History Closed out 0 0 0.0% -26,803 -100.0% Q3 2025 Nov 14, 2025
RENAISSANCE TECHNOLOGIES LLC History Closed out 0 0 0.0% -24,800 -100.0% Q3 2025 Nov 13, 2025
HRT FINANCIAL LP History Closed out 0 0 0.0% -10,805 -100.0% Q3 2025 Nov 14, 2025
Quantbot Technologies LP History Closed out 0 0 0.0% -1,073 -100.0% Q3 2025 Nov 12, 2025
GROUP ONE TRADING LLC History Closed out 0 0 0.0% -996 -100.0% Q3 2025 Nov 12, 2025
Advisory Services Network, LLC History Closed out 0 0 0.0% -650 -100.0% Q3 2025 Nov 18, 2025
IFP Advisors, Inc History Closed out 0 0 -3 -100.0% Q3 2025 Feb 06, 2026
HARBOUR INVESTMENTS, INC. History No change 5 0 0 0.0% Q4 2025 Feb 09, 2026
SIGNATUREFD, LLC History No change 54 0 0.0% 0 0.0% Q4 2025 Jan 20, 2026
Optiver Holding B.V. History No change 6 0 0 0.0% Q4 2025 Feb 17, 2026
Root Financial Partners, LLC History No change 34 0 0 0.0% Q4 2025 Feb 10, 2026