13F

Stock

Geospace Technologies Corp

GEOS · held by 84 managers

Reported value

$104.2M

Holders

84

+3 new · −2 exited

Holders’ est. mark

−$58K

Price effect on 4 books still in the name

Largest holder

$19.1M

DISCIPLINED GROWTH INVESTORS INC /MN

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
DISCIPLINED GROWTH INVESTORS INC /MN1.13M$19.1MHeld
Vanguard648.2K$11MHeld
Moors & Cabot, Inc.576K$9.74MHeld
DIMENSIONAL FUND ADVISORS LP544.1K$9.2MHeld
First Eagle Investment Management, LLC430.3K$7.28MHeld
GRACE & WHITE INC /NY307.8K$5.2MHeld
SUSQUEHANNA INTERNATIONAL GROUP, LLP231.3K$3.91MHeld
BlackRock, Inc.221.1K$3.74MHeld
SEI INVESTMENTS CO197K$3.33MHeld
Glenorchy Capital Ltd171K$2.89MHeld
De Lisle Partners LLP147.1K$2.48MHeld
GEODE CAPITAL MANAGEMENT, LLC146.1K$2.47MHeld
US BANCORP \DE\127.1K$2.15MHeld
State Street125.9K$2.13MHeld
BRIDGEWAY CAPITAL MANAGEMENT, LLC114.7K$1.94MHeld
MILLENNIUM MANAGEMENT LLC62K$1.05MHeld
EagleClaw Capital Managment, LLC61.1K$1.03MHeld
GOLDMAN SACHS GROUP INC60.1K$1.02MHeld
Citadel58.7K$993.1KHeld
TWO SIGMA INVESTMENTS, LP58.3K$985.6KHeld
Brooklyn Investment Group43.8K$761.7KHeld
Empowered Funds, LLC40.3K$681.3KHeld
683 Capital Management, LLC39.3K$663.8KHeld
NORTHERN TRUST CORP38.9K$658.4KHeld
Peapod Lane Capital LLC37.8K$639.5KHeld
IRONWOOD INVESTMENT MANAGEMENT LLC36.8K$621.9KHeld
Qube Research & Technologies Ltd32.3K$545.4KHeld
AMERICAN CENTURY COMPANIES INC30.1K$509.7KHeld
AlphaQuest LLC27.6K$466.8KHeld
ExodusPoint Capital Management, LP25K$423.6KHeld
JANE STREET GROUP, LLC24.9K$421.4KHeld
Vestmark Advisory Solutions, Inc.24.3K$410.4KHeld
ELEVATION POINT WEALTH PARTNERS, LLC24.3K$410.4KNew
Mraz, Amerine & Associates, Inc.24.1K$407.2KHeld
BARCLAYS PLC23.3K$394.7K−$11.8KAdded$285.5K
XTX Topco Ltd22.9K$387.8KHeld
COMMONWEALTH EQUITY SERVICES, LLC21.9K$370.1KHeld
OMERS ADMINISTRATION Corp20.1K$339.9KHeld
Hudson Bay Capital Management LP18.7K$316.5KNew
MORGAN STANLEY17.3K$291.9K−$15.5KAdded$149K
FourThought Financial Partners, LLC16.3K$276.3KHeld
BANK OF AMERICA CORP /DE/14.7K$248K−$30.1KCut−$212.3K
ESSEX INVESTMENT MANAGEMENT CO LLC13.6K$230.6KHeld
Tannin Capital LLC13.5K$229KHeld
LPL Financial LLC13.2K$223.2KHeld
IMC-Chicago, LLC12.5K$211KHeld
MARSHALL WACE, LLP11.8K$199.3KHeld
WELLS FARGO & COMPANY/MN10.9K$184.5KHeld
Balyasny Asset Management L.P.10.5K$178.1KHeld
CHARLES SCHWAB INVESTMENT MANAGEMENT INC10.4K$176.4KHeld
UBS Group AG6.82K$115.3KHeld
CIBC Private Wealth Group LLC6.65K$112.5KHeld
Tower Research Capital LLC (TRC)5.23K$88.4KHeld
Kestra Advisory Services, LLC3.95K$66.8KHeld
CITIGROUP INC3.31K$56KHeld
OSAIC HOLDINGS, INC.2.37K$40KHeld
SIMPLEX TRADING, LLC2K$33.8KHeld
SBI Securities Co., Ltd.1.29K$21.8KHeld
Farther Finance Advisors, LLC1.18K$20KHeld
Fidelity1.11K$18.8KHeld
CoreCap Advisors, LLC950$16.1KHeld
Tieton Capital Management, LLC884.2K$15KHeld
BNP PARIBAS FINANCIAL MARKETS796$13.5KHeld
Parvin Asset Management, LLC750$12.7KHeld
ROYAL BANK OF CANADA711$12KHeld
INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC700$11.8KHeld
JONES FINANCIAL COMPANIES LLLP580$9.81KHeld
RHUMBLINE ADVISERS439$7.42KHeld
Aventura Private Wealth, LLC324$5.48K−$664Cut−$26.8K
Sunbelt Securities, Inc.300$5.07KHeld
Hurley Capital, LLC206$3.48KHeld
Kingdom Financial Group LLC.194$3.28KHeld
Triumph Capital Management100$1.69KNew
REAP Financial Group, LLC100$1.69KHeld
Cambridge Investment Research Advisors, Inc.58.2K$984Held
SIGNATUREFD, LLC54$913Held
Root Financial Partners, LLC34$575Held
GSA CAPITAL PARTNERS LLP24.5K$415Held
ACADIAN ASSET MANAGEMENT LLC22.1K$372Held
Optiver Holding B.V.6$101Held
HARBOUR INVESTMENTS, INC.5$85Held
HAZLETT, BURT & WATSON, INC.400$7Held
CWM, LLC204$3Held
Capital Advisors, Ltd. LLC122$2Held

Who left

Positions as of Q4 2025. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.