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Disclosery

GEOS GEOSPACE TECHNOLOGIES CORP

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COM (common), issuer CIK 1001115

80 managers (83 13F filers) reported a position in GEOS shares at 2026-06-30, 5,155,446 shares in all. 20 filers opened a position and 21 filers sold out during the quarter.

Managers
80
13F filers
83
New
20
Added
23
Reduced
22
Sold out
21
Shares held by filers
5,155,446

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
Tieton Capital Management, LLC907,265$6.14M1.77%-4,85313F-HRTimeline
GRACE & WHITE INC /NY673,236$4.56M0.72%+200,03513F-HRTimeline
VANGUARD GROUP INCgroup of 3 filers holding596,679$4.04M-61,444Timeline
DIMENSIONAL FUND ADVISORS LPin group DIMENSIONAL FUND ADVISORS LP392,423$2.66M<0.01%-98,59313F-HRTimelineGroup
MARSHALL WACE, LLPin group MARSHALL WACE, LLP301,916$2.04M<0.01%+113,11013F-HRTimelineGroup
BlackRock, Inc.in group BlackRock, Inc.231,765$1.57M<0.01%+6,19713F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\212,766$1.44M<0.01%+85,63213F-HRTimelineGroup
SEI INVESTMENTS COin group SEI INVESTMENTS CO199,365$1.35M<0.01%-211,54113F-HRTimelineGroup
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC164,180$1.11M<0.01%+12,02613F-HRTimelineGroup
STATE STREET CORPin group STATE STREET CORP163,075$1.1M<0.01%+26,22213F-HRTimelineGroup
De Lisle Partners LLP147,133$998K0.11%013F-HRTimeline
ROBOTTI ROBERTin group ROBOTTI ROBERT128,436$870K0.14%new13F-HRTimelineGroup
TWO SIGMA INVESTMENTS, LPin group TWO SIGMA INVESTMENTS, LP82,184$556K<0.01%+8,27713F-HRTimelineGroup
BRIDGEWAY CAPITAL MANAGEMENT, LLC79,693$540K0.01%+90013F-HRTimeline
Glenorchy Capital Ltd68,488$464K0.29%-104,85113F-HRTimeline
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC58,018$393K<0.01%+25,30013F-HRTimelineGroup
EagleClaw Capital Managment, LLC50,015$339K0.05%-32,00013F-HRTimeline
RENAISSANCE TECHNOLOGIES LLC44,299$300K<0.01%new13F-HRTimeline
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC42,713$286K<0.01%new13F-HRTimelineGroup
IRONWOOD INVESTMENT MANAGEMENT LLC36,279$246K0.08%+23713F-HRTimeline
JACOBS LEVY EQUITY MANAGEMENT, INC35,573$241K<0.01%new13F-HRTimeline
SUSQUEHANNA INTERNATIONAL GROUP, LLPin group SUSQUEHANNA INTERNATIONAL GRO…33,029$224K<0.01%-113,36613F-HRTimelineGroup
Kingsview Wealth Management, LLC31,283$212K<0.01%+2,96113F-HRTimeline
HRT FINANCIAL LP30,656$207K<0.01%new13F-HRTimeline
Cambridge Investment Research Advisors,…29,865$202K<0.01%-14,43213F-HR/ATimeline
NORTHERN TRUST CORPin group NORTHERN TRUST CORP28,717$194K<0.01%-11,87913F-HRTimelineGroup
AMERICAN CENTURY COMPANIES INCin group AMERICAN CENTURY COMPANIES INC28,201$191K<0.01%-1,11813F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC25,800$175K<0.01%new13F-HRTimelineGroup
Mraz, Amerine & Associates, Inc.24,385$165K0.02%+30413F-HRTimeline
Vestmark Advisory Solutions, Inc.24,313$165K<0.01%013F-HRTimeline
ELEVATION POINT WEALTH PARTNERS, LLC24,313$165K<0.01%-4213F-HRTimeline
IMC-Chicago, LLC23,132$157K<0.01%+9,63413F-HRTimeline
COMMONWEALTH EQUITY SERVICES, LLC22,496$152K<0.01%+61113F-HRTimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC21,271$144K<0.01%new13F-HRTimelineGroup
Empowered Funds, LLC20,291$137K<0.01%013F-HRTimeline
Tannin Capital LLC19,657$133K0.09%+2,44813F-HRTimeline
AXQ CAPITAL, LP19,637$133K0.01%new13F-HRTimeline
Moors & Cabot, Inc.19,500$132K0.01%-171,10013F-HRTimeline
GSA CAPITAL PARTNERS LLP15,498$105K0.01%new13F-HRTimeline
MORGAN STANLEYin group MORGAN STANLEY15,255$103K<0.01%-1,26313F-HRTimelineGroup
XTX Topco Ltdin group XTX Topco Ltd13,435$91K<0.01%new13F-HRTimelineGroup
Invesco Ltd.in group Invesco Ltd.12,680$85.8K<0.01%new13F-HRTimelineGroup
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN12,448$84.3K<0.01%+2,27013F-HRTimelineGroup
HUB Investment Partners, LLC10,000$67.7K<0.01%013F-HRTimeline
UBS Group AGgroup of 2 filers holding7,361$49.8K+5,935Timeline
Arax Advisory Partners4,660$31.5K<0.01%new13F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,000$27.1K<0.01%+2,00013F-HRTimelineGroup
SIMPLEX TRADING, LLC2,075$14K<0.01%+1,67913F-HRTimeline
SBI Securities Co., Ltd.1,611$10.9K<0.01%-19513F-HRTimeline
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO1,621$10.6K<0.01%new13F-HRTimelineGroup
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,377$9.32K<0.01%-26613F-HRTimelineGroup
FMR LLCin group FMR LLC1,194$8.08K<0.01%+8513F-HRTimelineGroup
Integrated Wealth Concepts LLC1,150$7.79K<0.01%new13F-HRTimeline
GROUP ONE TRADING LLC1,075$7.28K<0.01%-1,50013F-HRTimeline
JONES FINANCIAL COMPANIES LLLPin group JONES FINANCIAL COMPANIES LLLP1,060$6.76K<0.01%013F-HRTimelineGroup
Larson Financial Group LLC858$5.81K<0.01%013F-HRTimeline
Parvin Asset Management, LLC750$5.08K<0.01%013F-HRTimeline
MCGUIRE CAPITAL ADVISORS INC750$5.08K<0.01%new13F-HRTimeline
MCF Advisors LLC740$5.01K<0.01%new13F-HRTimeline
HARBOUR INVESTMENTS, INC.515$3.49K<0.01%+1013F-HRTimeline
CoreCap Advisors, LLC500$3.38K<0.01%-45013F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…400$2.7K<0.01%013F-HRTimeline
Aventura Private Wealth, LLC300$2.03K<0.01%-8513F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA357$2K<0.01%-10913F-HRTimelineGroup
Nemes Rush Group LLC280$1.9K<0.01%new13F-HRTimeline
IFP Advisors, Inc232$1.57K<0.01%013F-HRTimeline
Hurley Capital, LLC206$1.4K<0.01%013F-HRTimeline
Farther Finance Advisors, LLC184$1.25K<0.01%-813F-HRTimeline
Kingdom Financial Group LLC.176$1.19K<0.01%-1813F-HRTimeline
Capital Advisors, Ltd. LLC122$1K<0.01%013F-HRTimeline
TOTH FINANCIAL ADVISORY CORP100$677<0.01%013F-HRTimeline
Strategic Wealth Partners, Ltd.100$677<0.01%new13F-HRTimeline
Triumph Capital Management100$677<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS76$515<0.01%-23,36613F-HRTimelineGroup
SIGNATUREFD, LLC54$366<0.01%013F-HRTimeline
Caitong International Asset Management …31$210<0.01%+2513F-HRTimeline
Transamerica Financial Advisors, LLCin group Transamerica Financial Adviso…27$182<0.01%new13F-HRTimelineGroup
Buck Wealth Strategies, LLC20$135<0.01%new13F-HRTimeline
Allworth Financial LP15$102<0.01%013F-HRTimeline
Optiver Holding B.V.in group Optiver Holding B.V.6$41<0.01%013F-HRTimelineGroup

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