Geospace Technologies Corp
GEOS- Exchange
- Nasdaq
- Industry
- Measuring & Controlling Devices, NEC
- SEC CIK
- 0001001115
No open-market purchases or sales by Geospace Technologies Corp insiders were filed in the last 90 days; 82 institutions reported holding it in 13F filings for Q2 2026, worth $35.1M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Geospace Technologies Corp as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 82
- −2 vs. Q1 2026
- Shares held
- 5.18M
- −1.54M (−22.9%) vs. Q1 2026
- Total value
- $35.1M
- −$46.9M (−57.2%) vs. Q1 2026
- New holders
- 19
- 24 more added
- Sold out
- 21
- 21 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting GEOS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 82 | $35.1M |
| Q1 2026 | 86 | $82.0M |
| Q4 2025 | 84 | $120.9M |
| Q3 2025 | 69 | $133.7M |
| Q2 2025 | 64 | $105.1M |
| Q1 2025 | 61 | $59.9M |
| Q4 2024 | 72 | $85.1M |
| Q3 2024 | 72 | $87.3M |
| Q2 2024 | 68 | $76.2M |
| Q1 2024 | 70 | $108.2M |
| Q4 2023 | 64 | $98.8M |
| Q3 2023 | 45 | $75.8M |
| Q2 2023 | 37 | $43.0M |
| Q1 2023 | 37 | $37.9M |
| Q4 2022 | 35 | $21.9M |
| Q3 2022 | 30 | $28.3M |
| Q2 2022 | 35 | $33.6M |
| Q1 2022 | 42 | $44.0M |
| Q4 2021 | 45 | $53.3M |
| Q3 2021 | 46 | $76.7M |
| Q2 2021 | 50 | $66.4M |
| Q1 2021 | 49 | $70.4M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Geospace Technologies Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Tieton Capital Management, LLC | 907,265 | $6.14M | 1.77% | −4,853−0.5% | Reduced |
| Grace & White Inc | 673,236 | $4.56M | 0.72% | +200,035+42.3% | Added |
| Vanguard Capital Management LLC | 515,067 | $3.49M | 0.00% | −61,965−10.7% | Reduced |
| Dimensional Fund Advisors LP | 392,423 | $2.66M | 0.00% | −98,593−20.1% | Reduced |
| Marshall Wace, LLP | 301,916 | $2.04M | 0.00% | +113,110+59.9% | Added |
| BlackRock, Inc. | 231,765 | $1.57M | 0.00% | +6,197+2.7% | Added |
| US Bancorp | 212,766 | $1.44M | 0.00% | +85,632+67.4% | Added |
| SEI Investments Co | 199,365 | $1.35M | 0.00% | −211,541−51.5% | Reduced |
| Geode Capital Management, LLC | 164,180 | $1.11M | 0.00% | +12,026+7.9% | Added |
| State Street Corp | 163,075 | $1.10M | 0.00% | +26,222+19.2% | Added |
| De Lisle Partners LLP | 147,133 | $998.3K | 0.11% | 00.0% | Unchanged |
| Robotti Robert | 128,436 | $869.5K | 0.14% | +128,436 | New |
| Two Sigma Investments, LP | 82,184 | $556.4K | 0.00% | +8,277+11.2% | Added |
| Bridgeway Capital Management, LLC | 79,693 | $539.5K | 0.01% | +900+1.1% | Added |
| Vanguard Fiduciary Trust Co | 76,586 | $518.5K | 0.00% | +521+0.7% | Added |
| Glenorchy Capital Ltd | 68,488 | $463.7K | 0.29% | −104,851−60.5% | Reduced |
| Cambridge Investment Research Advisors, Inc. | 59,730 | $404.0K | 0.00% | +15,433+34.8% | Added |
| Citadel Advisors LLC | 58,018 | $392.8K | 0.00% | +25,300+77.3% | Added |
| EagleClaw Capital Managment, LLC | 50,015 | $338.6K | 0.05% | −32,000−39.0% | Reduced |
| Renaissance Technologies LLC | 44,299 | $299.9K | 0.00% | +44,299 | New |
| Acadian Asset Management LLC | 42,713 | $286.0K | 0.00% | +42,713 | New |
| Ironwood Investment Management LLC | 36,279 | $245.6K | 0.08% | +237+0.7% | Added |
| Jacobs Levy Equity Management, Inc | 35,573 | $240.8K | 0.00% | +35,573 | New |
| Susquehanna International Group, LLP | 33,029 | $223.6K | 0.00% | −113,366−77.4% | Reduced |
| Kingsview Wealth Management, LLC | 31,283 | $211.8K | 0.00% | +2,961+10.5% | Added |
| HRT Financial LP | 30,656 | $207.0K | 0.00% | +30,656 | New |
| Northern Trust Corp | 28,717 | $194.4K | 0.00% | −11,879−29.3% | Reduced |
| American Century Companies Inc | 28,201 | $190.9K | 0.00% | −1,118−3.8% | Reduced |
| Goldman Sachs Group Inc | 25,800 | $174.7K | 0.00% | +25,800 | New |
| Mraz, Amerine & Associates, Inc. | 24,385 | $165.1K | 0.02% | +304+1.3% | Added |
| Mount Yale Investment Advisors, LLC | 24,313 | $164.6K | 0.00% | −42−0.2% | Reduced |
| Vestmark Advisory Solutions, Inc. | 24,313 | $164.6K | 0.00% | 00.0% | Unchanged |
| IMC-Chicago, LLC | 23,132 | $156.6K | 0.00% | +9,634+71.4% | Added |
| Commonwealth Equity Services, LLC | 22,496 | $152.3K | 0.00% | +611+2.8% | Added |
| Jane Street Group, LLC | 21,271 | $144.0K | 0.00% | +21,271 | New |
| Empowered Funds, LLC | 20,291 | $137.4K | 0.00% | 00.0% | Unchanged |
| Tannin Capital LLC | 19,657 | $133.1K | 0.09% | +2,448+14.2% | Added |
| Axq Capital, LP | 19,637 | $132.9K | 0.01% | +19,637 | New |
| Moors & Cabot, Inc. | 19,500 | $132.0K | 0.01% | −171,100−89.8% | Reduced |
| Gsa Capital Partners LLP | 15,498 | $105.0K | 0.01% | +15,498 | New |
| Morgan Stanley | 15,255 | $103.3K | 0.00% | −1,263−7.6% | Reduced |
| XTX Topco Ltd | 13,435 | $91.0K | 0.00% | +13,435 | New |
| Invesco Ltd. | 12,680 | $85.8K | 0.00% | +12,680 | New |
| Wells Fargo & Company | 12,448 | $84.3K | 0.00% | +2,270+22.3% | Added |
| TCG Advisory Services, LLC | 10,000 | $67.7K | 0.00% | 00.0% | Unchanged |
| UBS Group AG | 7,336 | $49.7K | 0.00% | +5,935+423.6% | Added |
| Vanguard Global Advisers, LLC | 5,026 | $34.0K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 4,660 | $31.5K | 0.00% | +4,660 | New |
| The PNC Financial Services Group, Inc. | 4,000 | $27.1K | 0.00% | +2,000+100.0% | Added |
| Simplex Trading, LLC | 2,075 | $14.0K | 0.00% | +1,679+424.0% | Added |
| SBI Securities Co., Ltd. | 1,611 | $10.9K | 0.00% | −195−10.8% | Reduced |
| JPMorgan Chase & Co | 1,621 | $10.6K | 0.00% | +1,621 | New |
| Advisor Group Holdings, Inc. | 1,377 | $9.32K | 0.00% | −266−16.2% | Reduced |
| FMR LLC | 1,194 | $8.08K | 0.00% | +85+7.7% | Added |
| Group One Trading, L.P. | 1,075 | $7.28K | 0.00% | −1,500−58.3% | Reduced |
| Jones Financial Companies LLLP | 1,060 | $6.76K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 858 | $5.81K | 0.00% | 00.0% | Unchanged |
| Parvin Asset Management, LLC | 750 | $5.08K | 0.00% | 00.0% | Unchanged |
| McGuire Capital Advisors Inc | 750 | $5.08K | 0.00% | +750 | New |
| MCF Advisors LLC | 740 | $5.01K | 0.00% | +740 | New |
| Harbour Investments, Inc. | 515 | $3.49K | 0.00% | +10+2.0% | Added |
| CoreCap Advisors, LLC | 500 | $3.38K | 0.00% | −450−47.4% | Reduced |
| International Assets Investment Management, LLC | 400 | $2.70K | 0.00% | 00.0% | Unchanged |
| Aventura Private Wealth, LLC | 300 | $2.03K | 0.00% | −85−22.1% | Reduced |
| Royal Bank of Canada | 357 | $2.00K | 0.00% | −109−23.4% | Reduced |
| Nemes Rush Group LLC | 280 | $1.90K | 0.00% | +280 | New |
| IFP Advisors, Inc | 232 | $1.57K | 0.00% | 00.0% | Unchanged |
| Hurley Capital, LLC | 206 | $1.40K | 0.00% | 00.0% | Unchanged |
| Farther Finance Advisors, LLC | 184 | $1.25K | 0.00% | −8−4.2% | Reduced |
| Kingdom Financial Group LLC. | 176 | $1.19K | 0.00% | −18−9.3% | Reduced |
| Capital Advisors, Ltd. LLC | 122 | $1.00K | 0.00% | 00.0% | Unchanged |
| Toth Financial Advisory Corp | 100 | $677 | 0.00% | 00.0% | Unchanged |
| Triumph Capital Management | 100 | $677 | 0.00% | 00.0% | Unchanged |
| Strategic Wealth Partners, Ltd. | 100 | $677 | 0.00% | +100 | New |
| BNP Paribas Arbitrage, SA | 76 | $515 | 0.00% | −23,366−99.7% | Reduced |
| Signaturefd, LLC | 54 | $366 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 31 | $210 | 0.00% | +25+416.7% | Added |
| Transamerica Financial Advisors, Inc. | 27 | $182 | 0.00% | +27 | New |
| UBS Asset Management Americas Inc | 25 | $169 | 0.00% | 00.0% | Unchanged |
| Buck Wealth Strategies, LLC | 20 | $135 | 0.00% | +20 | New |
| Allworth Financial LP | 15 | $102 | 0.00% | 00.0% | Unchanged |
| Optiver Holding B.V. | 6 | $41 | 0.00% | 00.0% | Unchanged |
| Disciplined Growth Investors Inc | 0 | $0 | 0.00% | −1,101,426−100.0% | Sold out |
| First Eagle Investment Management, LLC | 0 | $0 | 0.00% | −240,000−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −107,386−100.0% | Sold out |
| 683 Capital Management, LLC | 0 | $0 | 0.00% | −39,252−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −22,293−100.0% | Sold out |
| Qube Research & Technologies Ltd | 0 | $0 | 0.00% | −21,909−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −18,060−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −16,282−100.0% | Sold out |
| Essex Investment Management Co LLC | 0 | $0 | 0.00% | −13,636−100.0% | Sold out |
| Barclays PLC | 0 | $0 | 0.00% | −11,866−100.0% | Sold out |
| Omers Administration Corp | 0 | $0 | 0.00% | −11,100−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −10,335−100.0% | Sold out |
| Close Asset Management Ltd | 0 | $0 | 0.00% | −1,600−100.0% | Sold out |
| Steward Partners Investment Advisory, LLC | 0 | $0 | 0.00% | −1,200−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −1,126−100.0% | Sold out |
| Truvestments Capital LLC | 0 | $0 | 0.00% | −745−100.0% | Sold out |
| Covestor Ltd | 0 | $0 | 0.00% | −728−100.0% | Sold out |
| Rhumbline Advisers | 0 | $0 | 0.00% | −439−100.0% | Sold out |