OYO Geospace Corp

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OYO Geospace Corp
TickerGEOS
CIK #0001001115
CUSIP37364X109
SectorLife Sciences - Measuring & Controlling Devices, Nec
Address7007 Pinemont Dr, Houston, TX 77040
Source [EDGAR]
CIK Filing 2011 - 2025
[0001001115] 10-K
[0001001115] 10-Q
[0001001115] 3
[0001001115] 4
[0001001115] 8-K
[0001001115] SC 13D
[0001001115] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Dimensional Fund Advisors LP Geospace Technologies Corp [2025-01-23] 0.0
BlackRock Inc Geospace Technologies Corp [2024-11-08] 6.9
BlackRock Inc Geospace Technologies Corp [2024-10-22] 6.9
Vanguard Group Inc Geospace Technologies Corp [2024-02-13] 5.05
Tieton Capital Management LLC Geospace Technologies Corp [2023-01-25] 6.5
Gate City Capital Management LLC Geospace Technologies Corp [2023-01-10] 12.8
Rutabaga Capital Management LLC/MA Geospace Technologies Corp [2022-02-08] 5.22
Disciplined Growth Investors Inc /MN Geospace Technologies Corp [2021-02-16] 9.92
Nierenberg Investment Management Company Inc Geospace Technologies Corp [2020-05-27] 1.7
Nierenberg Investment Management Company Inc Geospace Technologies Corp [2020-05-18] 1.7
Sansone Capital Management LLC Geospace Technologies Corp [2020-02-18] 4.4
Dimensional Fund Advisors LP Geospace Technologies Corp [2019-02-08] 5.35
Nierenberg Investment Management Company Inc Geospace Technologies Corp [2018-04-23] 1.4
Lemelson Capital Management LLC Geospace Technologies Corp [2018-04-03] 8.4
Vanguard Group Inc Geospace Technologies Corp [2018-02-08] 5.62
Lemelson Capital Management LLC Geospace Technologies Corp [2015-11-30] 8211.0
FMR LLC Geospace Technologies Corp [2015-02-13] 0.0
Bank of New York Mellon Corp Geospace Technologies Corp [2015-02-09] 6.31
Vanguard Group Inc Geospace Technologies Corp [2013-02-13] 6.22
Brown Capital Management LLC OYO Geospace Corp [2012-07-10] 5.36
BlackRock Inc OYO Geospace Corp [2012-02-09] 5.43
Form 3/4/5 Filer 2011 - 2025
Ashworth Margaret
Geospace Technologies Corp
Jumper Stephen C
Giesinger Edgar R. JR.
Wheeler Walter R.
Davis Thomas L
Miles Richard F
Bushey Ronald Todd
Curda Robert L.
Kelley Richard James
Adams Robbin B.
Owens Gary D
Langtry Tina M
Sheen Michael J
Asbury Kenneth
Moody William H
Still Charles H
McEntire Thomas T
Rice Lacey
OYO Corp
Kanemori Takashi
OYO Corp USA
Form 13F Holdings
Firm Period DFND Voting Shares
Disciplined Growth Investors Inc /MN [2025-06-30] SOLE 1,244,769 1,244,769
Tieton Capital Management LLC [2025-06-30] SOLE 859,177 859,177
Moors & Cabot Inc [2025-06-30] SOLE 764,600 764,600
Vanguard Group Inc [2025-06-30] SOLE 0 653,692
Dimensional Fund Advisors LP [2025-06-30] SOLE 637,462 651,708
First Eagle Investment Management LLC [2025-06-30] SOLE 509,364 509,364
BlackRock, Inc. [2025-06-30] SOLE 407,363 412,941
Grace & White Inc /NY [2025-06-30] SOLE 30,813 330,321
Glenorchy Capital Ltd [2025-06-30] SOLE 0 193,884
Millennium Management LLC [2025-06-30] SOLE 146,211 146,211
de Lisle Partners LLP [2025-06-30] SOLE 144,234 144,234
Geode Capital Management LLC [2025-06-30] DFND 141,126 141,126
Bridgeway Capital Management LLC [2025-06-30] SOLE 131,478 131,478
Peapod Lane Capital LLC [2025-06-30] SOLE 102,520 128,126
US Bancorp de [2025-06-30] DFND 0 124,034
Susquehanna International Group LLP [2025-06-30] OTR 81,170 113,770
American Century Companies Inc [2025-06-30] DFND 93,273 93,273
Citadel Advisors LLC [2025-06-30] DFND 79,800 79,800
Empowered Funds LLC [2025-06-30] OTR 57,062 57,062
State Street Corp [2025-06-30] DFND 51,189 51,189
Royal Bank of Canada [2025-06-30] DFND 50,863 50,923
Renaissance Technologies LLC [2025-06-30] SOLE 45,200 45,200
Northern Trust Corp [2025-06-30] DFND 40,985 40,985
Informed Momentum Co LLC [2025-06-30] SOLE 38,188 38,188
Summittx Capital LP [2025-06-30] DFND 37,196 37,196
Ironwood Investment Management LLC [2025-06-30] SOLE 37,168 37,168
EagleClaw Capital Managment, LLC [2025-06-30] SOLE 36,150 36,150
Goldman Sachs Group Inc [2025-06-30] DFND 31,535 31,535
Squarepoint Ops LLC [2025-06-30] DFND 0 29,834
Dimensional Fund Advisors LP [2025-06-30] DFND 0 27,981
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