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 - 2026
[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
Vanguard Capital Management LLC Geospace Technologies Corp [2026-04-29] 0.0
Vanguard Group Inc Geospace Technologies Corp [2026-01-30] 0.0
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 - 2026
Geospace Technologies Corp
Jumper Stephen C
Wheeler Walter R
Miles Richard F
Davis Thomas L
Giesinger Edgar R JR
Ashworth Margaret
Curda Robert L
Bushey Ronald Todd
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
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Davis Thomas L
Common Stock
2026-02-09 Grant 3,500 $0.00
Miles Richard F
Common Stock
2026-02-09 Grant 3,500 $0.00
Giesinger Edgar R JR
Common Stock
2026-02-09 Grant 3,500 $0.00
Kelley Richard James
Common Stock
2025-12-05 Tax withheld 275 $0.00
Curda Robert L
Common Stock
2025-12-05 Tax withheld 165 $0.00
Bushey Ronald Todd
Common Stock
2025-12-02 Tax withheld 275 $0.00
Kelley Richard James
Common Stock
2025-11-25 Grant 8,000 $0.00
Comm
2025-11-25 Grant 4,000 $0.00
Curda Robert L
Common Stock
2025-11-25 Grant 4,000 $0.00
Bushey Ronald Todd
Comm
2025-11-25 Grant 4,000 $0.00
Curda Robert L
Common Stock
2025-11-20 Tax withheld 198 $0.00
Common Stock
2025-11-20 Tax withheld 198 $0.00
Common Stock
2025-11-20 Grant 3,600 $0.00
Kelley Richard James
Common Stock
2025-11-20 Grant 4,500 $0.00
Kelley Richard James
Common Stock
2025-11-20 Tax withheld 298 $0.00
Curda Robert L
Common Stock
2025-11-20 Grant 3,600 $0.00
Bushey Ronald Todd
Common Stock
2025-11-20 Grant 3,600 $0.00
Bushey Ronald Todd
Common Stock
2025-11-20 Tax withheld 198 $0.00
Ashworth Margaret
Common Stock
2025-02-09 Grant 3,500 $0.00
Wheeler Walter R
Common Stock
2025-02-09 Grant 3,500 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 86 6,782,654
2025-12-31 84 7,299,408
2025-09-30 70 7,575,770
2025-06-30 67 7,497,998
2025-03-31 62 8,327,018
2024-12-31 73 8,493,428
2024-09-30 74 8,452,134
2024-06-30 69 8,260,748
2024-03-31 71 8,014,940
2023-12-31 65 7,466,780
2023-09-30 46 5,864,269
2023-06-30 39 5,581,516
Form 13F Holdings
Firm Period DFND Voting Shares
Grace & White Inc /NY [2026-06-30] SOLE 112,225 673,236
MRAZ Amerine & Associates Inc [2026-06-30] SOLE 0 24,385
Corecap Advisors LLC [2026-06-30] SOLE 0 500
Aventura Private Wealth LLC [2026-06-30] SOLE 300 300
IFP Advisors LLC [2026-06-30] SOLE 232 232
Farther Finance Advisors LLC [2026-06-30] SOLE 0 184
Capital Advisors Ltd LLC [2026-06-30] SOLE 0 122
Toth Financial Advisory Corp [2026-06-30] SOLE 0 100
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