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Disclosery

GEOS GEOSPACE TECHNOLOGIES CORP

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COM (common), issuer CIK 1001115

69 managers (69 13F filers) reported a position in GEOS shares at 2025-09-30, 7,049,687 shares in all. 17 filers opened a position and 11 filers sold out during the quarter.

Managers
69
13F filers
69
New
17
Added
20
Reduced
24
Sold out
11
Shares held by filers
7,049,687

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

Each filer's latest stake. The shares are the aggregate the reporting persons state, which can include entities that file no 13F.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
DISCIPLINED GROWTH INVESTORS INC /MN1,153,589$21.9M0.4%-91,18013F-HRTimeline
Tieton Capital Management, LLC888,336$16.8M5.85%+29,15913F-HRTimeline
Moors & Cabot, Inc.714,750$13.6M0.59%-49,85013F-HRTimeline
VANGUARD GROUP INCin group VANGUARD GROUP INC634,463$12M<0.01%-24,25513F-HRTimelineGroup
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP628,404$11.9M<0.01%-51,28513F-HRTimelineGroup
First Eagle Investment Management, LLCin group First Eagle Investment Manage…522,864$9.91M0.02%+13,50013F-HRTimelineGroup
GRACE & WHITE INC /NY314,546$5.96M1.05%-15,77513F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.207,165$3.93M<0.01%-205,77613F-HRTimelineGroup
Glenorchy Capital Ltd182,260$3.46M2.51%-11,62413F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…146,744$2.78M<0.01%+65,57413F-HRTimelineGroup
De Lisle Partners LLP144,234$2.73M0.33%013F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC142,600$2.7M<0.01%+1,47413F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC138,619$2.63M0.06%+7,14113F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\124,034$2.35M<0.01%013F-HRTimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC120,854$2.29M<0.01%-25,35713F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC85,531$1.62M<0.01%-7,74213F-HRTimelineGroup
Peapod Lane Capital LLC85,004$1.61M1.44%-43,12213F-HRTimeline
Empowered Funds, LLC64,203$1.22M0.01%+7,14113F-HRTimeline
EagleClaw Capital Managment, LLC61,150$1.16M0.16%+25,00013F-HRTimeline
STATE STREET CORPin group STATE STREET CORP57,689$1.09M<0.01%+6,50013F-HRTimelineGroup
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …53,499$1.01M<0.01%new13F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC50,822$964K<0.01%new13F-HRTimelineGroup
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA49,146$932K<0.01%-1,77713F-HRTimelineGroup
Informed Momentum Co LLC45,837$869K0.1%+7,64913F-HRTimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP39,724$753K<0.01%-1,26113F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP36,976$701K<0.01%+21,70513F-HRTimelineGroup
IRONWOOD INVESTMENT MANAGEMENT LLC36,856$699K0.3%-31213F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC35,956$682K<0.01%new13F-HRTimelineGroup
Squarepoint Ops LLCin group Squarepoint Ops LLC26,803$508K<0.01%-3,03113F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC24,800$470K<0.01%-20,40013F-HRTimeline
AlphaQuest LLC24,726$469K0.03%new13F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/24,277$460K<0.01%+11,23413F-HR/ATimelineGroup
Mraz, Amerine & Associates, Inc.24,081$457K0.07%013F-HRTimeline
Cubist Systematic Strategies, LLC22,770$432K0.01%new13F-HRTimeline
GSA CAPITAL PARTNERS LLP21,727$412K0.03%+7,58513F-HRTimeline
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC18,271$346K<0.01%-13,26413F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN15,226$289K<0.01%+9,00013F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC14,142$268K<0.01%-1,95113F-HRTimelineGroup
ESSEX INVESTMENT MANAGEMENT CO LLC13,636$259K0.04%013F-HRTimeline
HRT FINANCIAL LP10,805$204K<0.01%-4,37213F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY7,539$143K<0.01%+22513F-HR/ATimelineGroup
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.7,000$133K<0.01%013F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC5,761$109K<0.01%+5,76013F-HR/ATimelineGroup
Point72 Asia (Singapore) Pte. Ltd.5,371$102K0.02%new13F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS3,453$65.5K<0.01%+3,00513F-HRTimelineGroup
UBS Group AGin group UBS Group AG2,351$44.6K<0.01%+43113F-HRTimelineGroup
Aventura Private Wealth, LLC1,700$32.2K0.01%new13F-HRTimeline
SBI Securities Co., Ltd.1,463$27.7K<0.01%+1,45313F-HRTimeline
FMR LLCin group FMR LLC1,111$21.1K<0.01%-5613F-HRTimelineGroup
Quantbot Technologies LP1,073$20.3K<0.01%new13F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,038$19.9K<0.01%-6213F-HRTimelineGroup
GROUP ONE TRADING LLC996$18.9K<0.01%-11613F-HRTimeline
Advisory Services Network, LLC650$12.3K<0.01%new13F-HRTimeline
Allworth Financial LP540$10.2K<0.01%new13F-HRTimeline
CoreCap Advisors, LLC500$9.48K<0.01%new13F-HRTimeline
RHUMBLINE ADVISERS439$8.32K<0.01%-16113F-HRTimeline
CITIGROUP INCin group CITIGROUP INC419$7.94K<0.01%-5,30313F-HRTimelineGroup
Farther Finance Advisors, LLC317$6.01K<0.01%new13F-HRTimeline
Sunbelt Securities, Inc.300$5.69K<0.01%013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP135$2.58K<0.01%+7013F-HRTimelineGroup
Capital Advisors, Ltd. LLC122$2K<0.01%013F-HRTimeline
REAP Financial Group, LLC100$1.9K<0.01%013F-HRTimeline
SIGNATUREFD, LLC54$1.02K<0.01%new13F-HRTimeline
CWM, LLCin group CWM, LLC61$1K<0.01%-33013F-HRTimelineGroup
Root Financial Partners, LLC34$645<0.01%new13F-HRTimeline
Point72 (DIFC) Ltd27$507<0.01%new13F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.6$114<0.01%new13F-HRTimelineGroup
HARBOUR INVESTMENTS, INC.5$95<0.01%new13F-HRTimeline
IFP Advisors, Inc3$57<0.01%+313F-HR/ATimeline

Events

  • GRACE & WHITE INC /NY reported 793,498 GEOS shares, 6.13% of the class, as of 2026-09-30, in a 13G filed 2026-10-07. 0000903064-26-000009

    Accepted , ingested