GEOSPACE TECHNOLOGIES CORP

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GEOS·37364X109·US·Common Stock·Energy - Oil & Gas Equipment & Services-13D/G

GEOS (GEOSPACE TECHNOLOGIES CORP) is held by 41 institutional investors as of Q2 2026. Largest holders: VANGUARD CAPITAL MANAGEMENT LLC ($3.5M), DIMENSIONAL FUND ADVISORS LP ($2.7M), MARSHALL WACE, LLP ($2M). Net institutional sentiment: Mixed.

41

Holders

(4 Elite)

$18.9M

Total Value

49% (47)

Consensus

23 buying - 24 selling

13F: Jun 30, 2026Insider & Congress: Updated regularly

Smart Money Verdict

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Institutional (13F)37

Insider (Form 4)68

Activist (13D/13G)31

Congressional (STOCK Act)43

Holder Quality

87

★★★★★

Elite

23

★★★★

Strong

15

★★★

Solid

53

★★

Below

40

★

Weak

Held by 41 funds

4 elite

Who's Trading

Source dates: Price Oct 9, 2026 · Insiders Dec 5, 2025 · Activists Oct 7, 2026 · Congress none

ActivistG&GRACE & WHITE INC /NY6.1%Oct 7, 2026

ActivistDGDISCIPLINED GROWTH INVESTORS INC /MN0.0%Aug 14, 2026

ActivistVAVanguard Capital Management4.6%Jul 31, 2026

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Top Holders

Top Holders (41)History

AllNewIncreasedHeldDecreasedExitedFirst report

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Fund	Action	Shares	Value	Weight	Est. P&L	Conviction
VAVANGUARD CAPITAL MANAGEMENT LLC	Decreased	515,067(-10.7%)	$3.5M	0.0%	-53.00%	0
DIMENSIONAL FUND ADVISORS LP	Decreased	392,423(-20.1%)	$2.7M	0.0%	-45.98%	0
MWMARSHALL WACE, LLP	Increased	301,916(+59.9%)	$2M	0.0%	-48.55%	37
BlackRock, Inc.	Increased	231,765(+2.8%)	$1.6M	0.0%	-55.88%	18
US BANCORP \DE\	Increased	212,766(+67.4%)	$1.4M	0.0%	-42.45%	38
SEI INVESTMENTS CO	Decreased	199,365(-51.5%)	$1.3M	0.0%	-65.68%	0
GEODE CAPITAL MANAGEMENT, LLC	Increased	164,180(+7.9%)	$1.1M	0.0%	-59.03%	27
STATE STREET CORP	Increased	163,075(+19.2%)	$1.1M	0.0%	-64.50%	20
TWO SIGMA INVESTMENTS, LP	Increased	82,184(+11.2%)	$556,386	0.0%	-69.36%	27
VFVANGUARD FIDUCIARY TRUST CO	Increased	76,586(+0.7%)	$518,487	0.0%	-52.90%	24
CITADEL ADVISORS LLC	Increased	58,018(+77.3%)	$392,782	0.0%	-66.09%	25
RENAISSANCE TECHNOLOGIES LLC	New	44,299	$299,904	0.0%	-31.76%	32
JACOBS LEVY EQUITY MANAGEMENT, INC	New	35,573	$240,829	0.0%	-31.76%	32
SUSQUEHANNA INTERNATIONAL GROUP, LLP	Decreased	33,029(-77.4%)	$223,606	0.0%	-72.44%	0
HRT FINANCIAL LP	New	30,656	$207,000	0.0%	-31.76%	32
NORTHERN TRUST CORP	Decreased	28,717(-29.3%)	$194,414	0.0%	-59.85%	0
AMERICAN CENTURY COMPANIES INC	Decreased	28,201(-3.8%)	$190,921	0.0%	-63.83%	0
GOLDMAN SACHS GROUP INC	New	25,800	$174,666	0.0%	-31.76%	35
IMC-Chicago, LLC	Increased	23,132(+71.4%)	$156,604	0.0%	-63.46%	23
COMMONWEALTH EQUITY SERVICES, LLC	Increased	22,496(+2.8%)	$152,300	0.0%	-73.02%	23

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GEOSGEOSPACE TECHNOLOGIES CORP

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High Conviction Moves-Smart Money Convergence-Fund Consensus-Double-Down Detection

Data sourced from four public-disclosure sources: SEC 13F, Form 4, 13D/13G, and House/Senate STOCK Act disclosures. Not financial advice. Full disclaimer