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 $34.9M in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Geospace Technologies Corp as of Mar 31, 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
- 86
- +4 vs. Q4 2025
- Shares held
- 6.72M
- +227.2K (+3.5%) vs. Q4 2025
- Total value
- $82.0M
- −$27.8M (−25.3%) vs. Q4 2025
- New holders
- 20
- 23 more added
- Sold out
- 16
- 26 more reduced
2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: 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 | $34.9M |
| Q1 2026 | 86 | $82.0M |
| Q4 2025 | 84 | $120.9M |
| Q3 2025 | 69 | $133.7M |
| Q2 2025 | 64 | $104.4M |
| Q1 2025 | 61 | $58.5M |
| Q4 2024 | 72 | $85.1M |
| Q3 2024 | 72 | $87.2M |
| Q2 2024 | 68 | $76.2M |
| Q1 2024 | 70 | $107.6M |
| Q4 2023 | 64 | $98.6M |
| 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, Q1 2026
Shares, value and share of portfolio for each institution holding Geospace Technologies Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Optiver Holding B.V. | 6 | $73 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 6 | $73 | 0.00% | +6 | New |
| Allworth Financial LP | 15 | $183 | 0.00% | +15 | New |
| UBS Asset Management Americas Inc | 25 | $305 | 0.00% | +25 | New |
| Root Financial Partners, LLC | 34 | $415 | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 54 | $659 | 0.00% | 00.0% | Unchanged |
| Capital Advisors, Ltd. LLC | 122 | $1.00K | 0.00% | 00.0% | Unchanged |
| Triumph Capital Management | 100 | $1.22K | 0.00% | 00.0% | Unchanged |
| Toth Financial Advisory Corp | 100 | $1.22K | 0.00% | +100 | New |
| Farther Finance Advisors, LLC | 192 | $2.29K | 0.00% | −988−83.7% | Reduced |
| CWM, LLC | 190 | $2.32K | 0.00% | −14−6.9% | Reduced |
| Kingdom Financial Group LLC. | 194 | $2.37K | 0.00% | 00.0% | Unchanged |
| Lloyd Advisory Services, LLC. | 194 | $2.37K | 0.00% | +194 | New |
| Advisory Services Network, LLC | 200 | $2.44K | 0.00% | +200 | New |
| Hurley Capital, LLC | 206 | $2.51K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 232 | $2.83K | 0.00% | +232 | New |
| Sunbelt Securities, Inc. | 300 | $3.66K | 0.00% | 00.0% | Unchanged |
| Aventura Private Wealth, LLC | 385 | $4.70K | 0.00% | +61+18.8% | Added |
| International Assets Investment Management, LLC | 400 | $4.76K | 0.00% | −300−42.9% | Reduced |
| Simplex Trading, LLC | 396 | $4.83K | 0.00% | −1,605−80.2% | Reduced |
| Royal Bank of Canada | 466 | $5.00K | 0.00% | −245−34.5% | Reduced |
| Rhumbline Advisers | 439 | $5.36K | 0.00% | 00.0% | Unchanged |
| Harbour Investments, Inc. | 505 | $6.16K | 0.00% | +500+10,000.0% | Added |
| Covestor Ltd | 728 | $9.00K | 0.01% | +728 | New |
| Truvestments Capital LLC | 745 | $9.09K | 0.00% | +745 | New |
| Parvin Asset Management, LLC | 750 | $9.15K | 0.01% | 00.0% | Unchanged |
| Larson Financial Group LLC | 858 | $10.5K | 0.00% | +858 | New |
| CoreCap Advisors, LLC | 950 | $11.6K | 0.00% | 00.0% | Unchanged |
| Jones Financial Companies LLLP | 1,060 | $12.9K | 0.00% | +480+82.8% | Added |
| FMR LLC | 1,109 | $13.5K | 0.00% | −2−0.2% | Reduced |
| Citigroup Inc | 1,126 | $13.7K | 0.00% | −2,183−66.0% | Reduced |
| Steward Partners Investment Advisory, LLC | 1,200 | $14.6K | 0.00% | +1,200 | New |
| UBS Group AG | 1,401 | $17.1K | 0.00% | −5,416−79.4% | Reduced |
| Close Asset Management Ltd | 1,600 | $19.0K | 0.00% | +1,600 | New |
| Advisor Group Holdings, Inc. | 1,643 | $20.0K | 0.00% | −722−30.5% | Reduced |
| SBI Securities Co., Ltd. | 1,806 | $22.0K | 0.00% | +516+40.0% | Added |
| The PNC Financial Services Group, Inc. | 2,000 | $24.4K | 0.00% | +2,000 | New |
| Group One Trading, L.P. | 2,575 | $31.4K | 0.00% | +2,575 | New |
| Vanguard Global Advisers, LLC | 5,026 | $61.3K | 0.00% | +5,026 | New |
| TCG Advisory Services, LLC | 10,000 | $122.0K | 0.00% | +10,000 | New |
| Wells Fargo & Company | 10,178 | $124.2K | 0.00% | −730−6.7% | Reduced |
| Charles Schwab Investment Management Inc | 10,335 | $126.1K | 0.00% | −94−0.9% | Reduced |
| Omers Administration Corp | 11,100 | $135.4K | 0.00% | −9,000−44.8% | Reduced |
| Barclays PLC | 11,866 | $144.8K | 0.00% | −11,478−49.2% | Reduced |
| IMC-Chicago, LLC | 13,498 | $164.7K | 0.00% | +1,020+8.2% | Added |
| Essex Investment Management Co LLC | 13,636 | $166.4K | 0.03% | 00.0% | Unchanged |
| Schonfeld Strategic Advisors LLC | 16,282 | $198.6K | 0.00% | +16,282 | New |
| Morgan Stanley | 16,518 | $201.5K | 0.00% | −746−4.3% | Reduced |
| Tannin Capital LLC | 17,209 | $209.9K | 0.15% | +3,664+27.1% | Added |
| Bank of America Corp | 18,060 | $220.3K | 0.00% | +3,395+23.2% | Added |
| Empowered Funds, LLC | 20,291 | $247.6K | 0.00% | −20,000−49.6% | Reduced |
| Commonwealth Equity Services, LLC | 21,885 | $267.0K | 0.00% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 21,909 | $267.3K | 0.00% | −10,342−32.1% | Reduced |
| Hudson Bay Capital Management LP | 22,293 | $272.0K | 0.00% | +3,579+19.1% | Added |
| BNP Paribas Arbitrage, SA | 23,442 | $286.0K | 0.00% | +22,646+2,845.0% | Added |
| Mraz, Amerine & Associates, Inc. | 24,081 | $293.8K | 0.04% | 00.0% | Unchanged |
| Vestmark Advisory Solutions, Inc. | 24,313 | $296.6K | 0.00% | +42+0.2% | Added |
| Mount Yale Investment Advisors, LLC | 24,355 | $297.1K | 0.01% | +84+0.3% | Added |
| Kingsview Wealth Management, LLC | 28,322 | $345.5K | 0.00% | +28,322 | New |
| American Century Companies Inc | 29,319 | $357.7K | 0.00% | −822−2.7% | Reduced |
| Citadel Advisors LLC | 32,718 | $399.2K | 0.00% | −26,008−44.3% | Reduced |
| Ironwood Investment Management LLC | 36,042 | $439.7K | 0.18% | −734−2.0% | Reduced |
| 683 Capital Management, LLC | 39,252 | $478.9K | 0.04% | 00.0% | Unchanged |
| Northern Trust Corp | 40,596 | $495.3K | 0.00% | +1,658+4.3% | Added |
| Cambridge Investment Research Advisors, Inc. | 44,297 | $540.0K | 0.00% | −13,877−23.9% | Reduced |
| Two Sigma Investments, LP | 73,907 | $901.7K | 0.00% | +15,619+26.8% | Added |
| Vanguard Fiduciary Trust Co | 76,065 | $928.0K | 0.00% | +76,065 | New |
| Bridgeway Capital Management, LLC | 78,793 | $961.3K | 0.02% | −35,914−31.3% | Reduced |
| EagleClaw Capital Managment, LLC | 82,015 | $1.00M | 0.14% | +20,865+34.1% | Added |
| Millennium Management LLC | 107,386 | $1.31M | 0.00% | +45,366+73.1% | Added |
| US Bancorp | 127,134 | $1.55M | 0.00% | 00.0% | Unchanged |
| State Street Corp | 136,853 | $1.67M | 0.00% | +10,917+8.7% | Added |
| Susquehanna International Group, LLP | 146,395 | $1.79M | 0.00% | −84,890−36.7% | Reduced |
| De Lisle Partners LLP | 147,133 | $1.79M | 0.21% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 152,154 | $1.86M | 0.00% | +6,047+4.1% | Added |
| Glenorchy Capital Ltd | 173,339 | $2.11M | 1.14% | +2,347+1.4% | Added |
| Marshall Wace, LLP | 188,806 | $2.30M | 0.00% | +177,021+1,502.1% | Added |
| Moors & Cabot, Inc. | 190,600 | $2.33M | 0.10% | −385,350−66.9% | Reduced |
| BlackRock, Inc. | 225,568 | $2.75M | 0.00% | +4,462+2.0% | Added |
| First Eagle Investment Management, LLC | 240,000 | $2.93M | 0.00% | −190,273−44.2% | Reduced |
| SEI Investments Co | 410,906 | $5.01M | 0.00% | +213,950+108.6% | Added |
| Grace & White Inc | 473,201 | $5.77M | 1.02% | +165,406+53.7% | Added |
| Dimensional Fund Advisors LP | 491,016 | $5.99M | 0.00% | −53,083−9.8% | Reduced |
| Vanguard Capital Management LLC | 577,032 | $7.04M | 0.00% | +577,032 | New |
| Tieton Capital Management, LLC | 912,118 | $11.1M | 3.73% | +27,942+3.2% | Added |
| Disciplined Growth Investors Inc | 1,101,426 | $13.4M | 0.27% | −30,142−2.7% | Reduced |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −60,136−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −43,799−100.0% | Sold out |
| Peapod Lane Capital LLC | 0 | $0 | 0.00% | −37,817−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −27,604−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −25,049−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −24,918−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −24,520−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −22,936−100.0% | Sold out |
| Acadian Asset Management LLC | 0 | $0 | 0.00% | −22,058−100.0% | Sold out |
| FourThought Financial Partners, LLC | 0 | $0 | 0.00% | −16,339−100.0% | Sold out |
| LPL Financial LLC | 0 | $0 | 0.00% | −13,200−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −10,530−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −5,230−100.0% | Sold out |
| Kestra Advisory Services, LLC | 0 | $0 | 0.00% | −3,952−100.0% | Sold out |