13F

Stock

Geospace Technologies Corp

GEOS · held by 86 managers

Reported value

$70.3M

Holders

86

+17 new · −16 exited

Holders’ est. mark

−$20.5M

Price effect on 66 books still in the name

Largest holder

$13.4M

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 /MN1.1M$13.4M−$5.19MCut−$5.7M
VANGUARD CAPITAL MANAGEMENT LLC577K$7.04MHeld
DIMENSIONAL FUND ADVISORS LP491K$5.99M−$2.31MCut−$3.21M
GRACE & WHITE INC /NY473.2K$5.77M−$1.45MAdded$568.2K
SEI INVESTMENTS CO410.9K$5.01M−$927.7KAdded$1.68M
First Eagle Investment Management, LLC240K$2.93M−$1.13MCut−$4.35M
BlackRock, Inc.225.6K$2.75M−$1.04MCut−$987K
Moors & Cabot, Inc.190.6K$2.33M−$897.7KCut−$7.41M
MARSHALL WACE, LLP188.8K$2.3M−$55.5KAdded$2.1M
Glenorchy Capital Ltd173.3K$2.11M−$805.4KCut−$776.8K
GEODE CAPITAL MANAGEMENT, LLC152.2K$1.86M−$688.5KCut−$614.7K
De Lisle Partners LLP147.1K$1.79M−$694.5KCut−$694.5K
SUSQUEHANNA INTERNATIONAL GROUP, LLP146.4K$1.79M−$689.5KCut−$2.13M
State Street136.9K$1.67M−$593.2KCut−$460K
US BANCORP \DE\127.1K$1.55M−$598.8KCut−$598.8K
MILLENNIUM MANAGEMENT LLC107.4K$1.31M−$292.1KAdded$261.4K
EagleClaw Capital Managment, LLC82K$1M−$288KCut−$33.5K
BRIDGEWAY CAPITAL MANAGEMENT, LLC78.8K$961.3K−$371.1KCut−$978.4K
VANGUARD FIDUCIARY TRUST CO76.1K$928KHeld
TWO SIGMA INVESTMENTS, LP73.9K$901.7K−$274.5KCut−$84K
NORTHERN TRUST CORP40.6K$495.3K−$183.4KCut−$163.2K
683 Capital Management, LLC39.3K$478.9K−$184.9KCut−$184.9K
IRONWOOD INVESTMENT MANAGEMENT LLC36K$439.7K−$169.8KCut−$182.2K
Citadel32.7K$399.2K−$154.1KCut−$593.9K
AMERICAN CENTURY COMPANIES INC29.3K$357.7K−$138.1KCut−$152K
Kingsview Wealth Management, LLC28.3K$345.5KNew
ELEVATION POINT WEALTH PARTNERS, LLC24.4K$297.1K−$114.3KCut−$113.3K
Vestmark Advisory Solutions, Inc.24.3K$296.6K−$114.3KCut−$113.8K
Mraz, Amerine & Associates, Inc.24.1K$293.8K−$113.4KCut−$113.4K
BNP PARIBAS FINANCIAL MARKETS23.4K$286K−$3.75KAdded$272.5K
Hudson Bay Capital Management LP22.3K$272K−$88.1KCut−$44.5K
Qube Research & Technologies Ltd21.9K$267.3K−$103.2KCut−$278.1K
COMMONWEALTH EQUITY SERVICES, LLC21.9K$267K−$103.1KCut−$103.1K
Empowered Funds, LLC20.3K$247.6K−$95.6KCut−$433.8K
BANK OF AMERICA CORP /DE/18.1K$220.3K−$69.1KCut−$27.7K
Tannin Capital LLC17.2K$209.9K−$63.8KCut−$19.1K
MORGAN STANLEY16.5K$201.5K−$77.8KCut−$90.4K
Schonfeld Strategic Advisors LLC16.3K$198.6KNew
ESSEX INVESTMENT MANAGEMENT CO LLC13.6K$166.4K−$64.2KCut−$64.2K
IMC-Chicago, LLC13.5K$164.7K−$58.8KCut−$46.3K
BARCLAYS PLC11.9K$144.8K−$55.9KCut−$250K
OMERS ADMINISTRATION Corp11.1K$135.4K−$52.3KCut−$204.5K
CHARLES SCHWAB INVESTMENT MANAGEMENT INC10.3K$126.1K−$48.7KCut−$50.3K
WELLS FARGO & COMPANY/MN10.2K$124.2K−$47.9KCut−$60.3K
HUB Investment Partners, LLC10K$122KNew
Vanguard Global Advisers, LLC5.03K$61.3KHeld
GROUP ONE TRADING LLC2.58K$31.4KNew
PNC Financial Services Group, Inc.2K$24.4KNew
SBI Securities Co., Ltd.1.81K$22K−$6.08KAdded$219
OSAIC HOLDINGS, INC.1.64K$20K−$7.74KCut−$19.9K
UBS Group AG1.4K$17.1K−$6.6KCut−$98.2K
Steward Partners Investment Advisory, LLC1.2K$14.6KNew
CITIGROUP INC1.13K$13.7K−$5.3KCut−$42.2K
Fidelity1.11K$13.5K−$5.22KCut−$5.26K
JONES FINANCIAL COMPANIES LLLP1.06K$12.9K−$2.74KAdded$3.1K
CoreCap Advisors, LLC950$11.6K−$4.48KCut−$4.47K
Tieton Capital Management, LLC912.1K$11.1K−$4.16KCut−$3.82K
Larson Financial Group LLC858$10.5KNew
Parvin Asset Management, LLC750$9.15K−$3.53KCut−$3.53K
Truvestments Capital LLC745$9.09KNew
HARBOUR INVESTMENTS, INC.505$6.16K−$24Added$6.08K
RHUMBLINE ADVISERS439$5.36K−$2.07KCut−$2.07K
ROYAL BANK OF CANADA466$5K−$2.86KCut−$7K
SIMPLEX TRADING, LLC396$4.83K−$1.87KCut−$29K
INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC400$4.76K−$2KCut−$7.08K
Aventura Private Wealth, LLC385$4.7K−$1.53KCut−$782
Sunbelt Securities, Inc.300$3.66K−$1.41KCut−$1.41K
IFP Advisors, Inc232$2.83KNew
Hurley Capital, LLC206$2.51K−$970Cut−$970
Advisory Services Network, LLC200$2.44KNew
Kingdom Financial Group LLC.194$2.37K−$914Cut−$914
Lloyd Advisory Services, LLC.194$2.37KNew
CWM, LLC190$2.32K$2.32KAdded$2.31K
Farther Finance Advisors, LLC192$2.29K−$962Cut−$17.7K
TOTH FINANCIAL ADVISORY CORP100$1.22KNew
Triumph Capital Management100$1.22K−$471Cut−$471
SIGNATUREFD, LLC54$659−$254Cut−$254
Cambridge Investment Research Advisors, Inc.44.3K$540−$209Cut−$444
Root Financial Partners, LLC34$415−$160Cut−$160
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC25$305New
Allworth Financial LP15$183New
Caitong International Asset Management Co., Ltd6$73New
Optiver Holding B.V.6$73−$28Cut−$28
TrinityBridge Ltd1.6K$19New
Covestor Ltd728$9New
Capital Advisors, Ltd. LLC122$1−$1Cut−$1

Who left

Positions as of Q1 2026. 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.