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Geospace Technologies Corp (GEOS)

CUSIP: 37364X109 | NYSE | Energy · Oil & Gas Equipment & Services | Micro Cap | 489 institutional holders

Quarters

Q3 2026Q2 2026Q1 2026Q4 2025Q3 2025
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Beneficial Ownership — 13D / 13G

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5%+ stakes reported outside the quarterly cycle. A 13D is due within five business days of the event below, so these figures lead the holders table until the filer's next 13F catches up to them.

HolderShares% of ClassChangeEvent Datevs 13F
13G/ADisciplined Growth Investors Inc00.0%No shares heldJun 30, 20261,101,426 sh (Mar 31, 2026)
13G/ADisciplined Growth Investors Inc0
0.0% of class · Jun 30, 2026No shares held
1,101,426 sh (Mar 31, 2026)

Institutional Holders — Q3 2026

Grace & White Inc793,498
0.6% of portfolio›$3.9M
Dimensional Fund Advisors LP289,425
0.0% of portfolio›$1.4M
US Bancorp \de\212,766
0.0% of portfolio›$1.0M
Tannin Capital LLC72,441
0.3% of portfolio›$354.2K
Mraz, Amerine & Associates, Inc.24,485
0.0% of portfolio›$119.7K
Elevation Point Wealth Partners, LLC24,271
0.0% of portfolio›$118.7K
Commonwealth Equity Services, LLC20,296
0.0% of portfolio›$99.3K
Imc-Chicago, LLC13,618
0.0% of portfolio›$66.6K
HUB Investment Partners, LLC10,000
0.0% of portfolio›$48.9K
Simplex Trading, LLC3,591
0.0% of portfolio›$17.6K
Citigroup Inc1,935
0.0% of portfolio›$9.5K
SBI Securities Co., Ltd.1,616
0.0% of portfolio›$7.9K
CoreCap Advisors, LLC500
0.0% of portfolio›$2.4K
EverSource Wealth Advisors, LLC303
0.0% of portfolio›$1.5K
Nemes Rush Group LLC280
0.0% of portfolio›$1.4K
IFP Advisors, Inc232
0.0% of portfolio›$1.1K
Larson Financial Group LLC225
0.0% of portfolio›$1.1K
Hurley Capital, LLC206
0.0% of portfolio›$1.0K
Farther Finance Advisors, LLC144
0.0% of portfolio›$704
Capital Advisors, Ltd. LLC122
0.0% of portfolio›$1
Caitong International Asset Management Co., Ltd62
0.0% of portfolio›$303
Signaturefd, LLC54
0.0% of portfolio›$264
Latitude Advisors, LLC40
0.0% of portfolio›$196
Root Financial Partners, LLC34
0.0% of portfolio›$166
Buck Wealth Strategies, LLC20
0.0% of portfolio›$98
StyleTurnoverLocationFiled
Grace & White Inc
793,498$3.9M0.6%Deep ValueVery LowNy, NY2026-10-23
Dimensional Fund Advisors LP
289,425$1.4M0.0%IndexLowAustin, TX2026-11-04
US Bancorp \de\
212,766$1.0M0.0%IndexLowMinneapolis, MN2026-11-05
Tannin Capital LLC
72,441$354.2K0.3%CoreMediumCharlotte, NC2026-11-05
Mraz, Amerine & Associates, Inc.
24,485$119.7K0.0%Deep ValueLowModesto, CA2026-10-30
Elevation Point Wealth Partners, LLC
24,271$118.7K0.0%CoreHighDenver, CO2026-11-05
Commonwealth Equity Services, LLC
20,296$99.3K0.0%ETFLowWaltham, MA2026-11-02
Imc-Chicago, LLC
13,618$66.6K0.0%GARPVery HighChicago, IL2026-11-05
HUB Investment Partners, LLC
10,000$48.9K0.0%GrowthLowAustin, TX2026-11-03
Simplex Trading, LLC
3,591$17.6K0.0%CoreVery HighChicago, IL2026-11-04
Citigroup Inc
1,935$9.5K0.0%CoreMediumNew York, NY2026-11-04
SBI Securities Co., Ltd.
1,616$7.9K0.0%Agg GrowthLowTokyo, Mexico2026-10-22
CoreCap Advisors, LLC
500$2.4K0.0%ETFMediumSouthfield, MI2026-10-08
EverSource Wealth Advisors, LLC
303$1.5K0.0%CoreMediumBirmingham, AL2026-11-04
Nemes Rush Group LLC
280$1.4K0.0%CoreVery LowNovi, MI2026-11-04
IFP Advisors, Inc
232$1.1K0.0%GrowthLowTampa, FL2026-10-16
Larson Financial Group LLC
225$1.1K0.0%GrowthLowSt Louis, MO2026-11-05
Hurley Capital, LLC
206$1.0K0.0%GARPMediumNew York, NY2026-11-05
Farther Finance Advisors, LLC
144$7040.0%IndexLowSan Francisco, CA2026-10-08
Capital Advisors, Ltd. LLC
122$10.0%ETFLowShaker Heights, OH2026-10-27
Caitong International Asset Management Co., Ltd
62$3030.0%GrowthVery HighHong Kong, South Korea2026-10-29
Signaturefd, LLC
54$2640.0%IndexLowAtlanta, GA2026-10-23
Latitude Advisors, LLC
40$1960.0%ETFLowYorkville, IL2026-10-27
Root Financial Partners, LLC
34$1660.0%ETFMediumEncinitas, CA2026-10-21
Buck Wealth Strategies, LLC
20$980.0%ValueMediumDenver, CO2026-10-28