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 |
|---|---|---|---|---|---|
| Disciplined Growth Investors Inc | 1,101,426 | $13.4M | 0.27% | −30,142−2.7% | Reduced |
| Tieton Capital Management, LLC | 912,118 | $11.1M | 3.73% | +27,942+3.2% | Added |
| Vanguard Capital Management LLC | 577,032 | $7.04M | 0.00% | +577,032 | New |
| Dimensional Fund Advisors LP | 491,016 | $5.99M | 0.00% | −53,083−9.8% | Reduced |
| Grace & White Inc | 473,201 | $5.77M | 1.02% | +165,406+53.7% | Added |
| SEI Investments Co | 410,906 | $5.01M | 0.00% | +213,950+108.6% | Added |
| First Eagle Investment Management, LLC | 240,000 | $2.93M | 0.00% | −190,273−44.2% | Reduced |
| BlackRock, Inc. | 225,568 | $2.75M | 0.00% | +4,462+2.0% | Added |
| Moors & Cabot, Inc. | 190,600 | $2.33M | 0.10% | −385,350−66.9% | Reduced |
| Marshall Wace, LLP | 188,806 | $2.30M | 0.00% | +177,021+1,502.1% | Added |
| Glenorchy Capital Ltd | 173,339 | $2.11M | 1.14% | +2,347+1.4% | Added |
| Geode Capital Management, LLC | 152,154 | $1.86M | 0.00% | +6,047+4.1% | Added |
| De Lisle Partners LLP | 147,133 | $1.79M | 0.21% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 146,395 | $1.79M | 0.00% | −84,890−36.7% | Reduced |
| State Street Corp | 136,853 | $1.67M | 0.00% | +10,917+8.7% | Added |
| US Bancorp | 127,134 | $1.55M | 0.00% | 00.0% | Unchanged |
| Millennium Management LLC | 107,386 | $1.31M | 0.00% | +45,366+73.1% | Added |
| EagleClaw Capital Managment, LLC | 82,015 | $1.00M | 0.14% | +20,865+34.1% | Added |
| Bridgeway Capital Management, LLC | 78,793 | $961.3K | 0.02% | −35,914−31.3% | Reduced |
| Vanguard Fiduciary Trust Co | 76,065 | $928.0K | 0.00% | +76,065 | New |
| Two Sigma Investments, LP | 73,907 | $901.7K | 0.00% | +15,619+26.8% | Added |
| Cambridge Investment Research Advisors, Inc. | 44,297 | $540.0K | 0.00% | −13,877−23.9% | Reduced |
| Northern Trust Corp | 40,596 | $495.3K | 0.00% | +1,658+4.3% | Added |
| 683 Capital Management, LLC | 39,252 | $478.9K | 0.04% | 00.0% | Unchanged |
| Ironwood Investment Management LLC | 36,042 | $439.7K | 0.18% | −734−2.0% | Reduced |
| Citadel Advisors LLC | 32,718 | $399.2K | 0.00% | −26,008−44.3% | Reduced |
| American Century Companies Inc | 29,319 | $357.7K | 0.00% | −822−2.7% | Reduced |
| Kingsview Wealth Management, LLC | 28,322 | $345.5K | 0.00% | +28,322 | New |
| Mount Yale Investment Advisors, LLC | 24,355 | $297.1K | 0.01% | +84+0.3% | Added |
| Vestmark Advisory Solutions, Inc. | 24,313 | $296.6K | 0.00% | +42+0.2% | Added |
| Mraz, Amerine & Associates, Inc. | 24,081 | $293.8K | 0.04% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 23,442 | $286.0K | 0.00% | +22,646+2,845.0% | Added |
| Hudson Bay Capital Management LP | 22,293 | $272.0K | 0.00% | +3,579+19.1% | Added |
| Qube Research & Technologies Ltd | 21,909 | $267.3K | 0.00% | −10,342−32.1% | Reduced |
| Commonwealth Equity Services, LLC | 21,885 | $267.0K | 0.00% | 00.0% | Unchanged |
| Empowered Funds, LLC | 20,291 | $247.6K | 0.00% | −20,000−49.6% | Reduced |
| Bank of America Corp | 18,060 | $220.3K | 0.00% | +3,395+23.2% | Added |
| Tannin Capital LLC | 17,209 | $209.9K | 0.15% | +3,664+27.1% | Added |
| Morgan Stanley | 16,518 | $201.5K | 0.00% | −746−4.3% | Reduced |
| Schonfeld Strategic Advisors LLC | 16,282 | $198.6K | 0.00% | +16,282 | New |
| Essex Investment Management Co LLC | 13,636 | $166.4K | 0.03% | 00.0% | Unchanged |
| IMC-Chicago, LLC | 13,498 | $164.7K | 0.00% | +1,020+8.2% | Added |
| Barclays PLC | 11,866 | $144.8K | 0.00% | −11,478−49.2% | Reduced |
| Omers Administration Corp | 11,100 | $135.4K | 0.00% | −9,000−44.8% | Reduced |
| Charles Schwab Investment Management Inc | 10,335 | $126.1K | 0.00% | −94−0.9% | Reduced |
| Wells Fargo & Company | 10,178 | $124.2K | 0.00% | −730−6.7% | Reduced |
| TCG Advisory Services, LLC | 10,000 | $122.0K | 0.00% | +10,000 | New |
| Vanguard Global Advisers, LLC | 5,026 | $61.3K | 0.00% | +5,026 | New |
| Group One Trading, L.P. | 2,575 | $31.4K | 0.00% | +2,575 | New |
| The PNC Financial Services Group, Inc. | 2,000 | $24.4K | 0.00% | +2,000 | New |
| SBI Securities Co., Ltd. | 1,806 | $22.0K | 0.00% | +516+40.0% | Added |
| Advisor Group Holdings, Inc. | 1,643 | $20.0K | 0.00% | −722−30.5% | Reduced |
| Close Asset Management Ltd | 1,600 | $19.0K | 0.00% | +1,600 | New |
| UBS Group AG | 1,401 | $17.1K | 0.00% | −5,416−79.4% | Reduced |
| Steward Partners Investment Advisory, LLC | 1,200 | $14.6K | 0.00% | +1,200 | New |
| Citigroup Inc | 1,126 | $13.7K | 0.00% | −2,183−66.0% | Reduced |
| FMR LLC | 1,109 | $13.5K | 0.00% | −2−0.2% | Reduced |
| Jones Financial Companies LLLP | 1,060 | $12.9K | 0.00% | +480+82.8% | Added |
| CoreCap Advisors, LLC | 950 | $11.6K | 0.00% | 00.0% | Unchanged |
| Larson Financial Group LLC | 858 | $10.5K | 0.00% | +858 | New |
| Parvin Asset Management, LLC | 750 | $9.15K | 0.01% | 00.0% | Unchanged |
| Truvestments Capital LLC | 745 | $9.09K | 0.00% | +745 | New |
| Covestor Ltd | 728 | $9.00K | 0.01% | +728 | New |
| Harbour Investments, Inc. | 505 | $6.16K | 0.00% | +500+10,000.0% | Added |
| Rhumbline Advisers | 439 | $5.36K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 466 | $5.00K | 0.00% | −245−34.5% | Reduced |
| Simplex Trading, LLC | 396 | $4.83K | 0.00% | −1,605−80.2% | Reduced |
| International Assets Investment Management, LLC | 400 | $4.76K | 0.00% | −300−42.9% | Reduced |
| Aventura Private Wealth, LLC | 385 | $4.70K | 0.00% | +61+18.8% | Added |
| Sunbelt Securities, Inc. | 300 | $3.66K | 0.00% | 00.0% | Unchanged |
| IFP Advisors, Inc | 232 | $2.83K | 0.00% | +232 | New |
| Hurley Capital, LLC | 206 | $2.51K | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 200 | $2.44K | 0.00% | +200 | New |
| Kingdom Financial Group LLC. | 194 | $2.37K | 0.00% | 00.0% | Unchanged |
| Lloyd Advisory Services, LLC. | 194 | $2.37K | 0.00% | +194 | New |
| CWM, LLC | 190 | $2.32K | 0.00% | −14−6.9% | Reduced |
| Farther Finance Advisors, LLC | 192 | $2.29K | 0.00% | −988−83.7% | Reduced |
| Triumph Capital Management | 100 | $1.22K | 0.00% | 00.0% | Unchanged |
| Toth Financial Advisory Corp | 100 | $1.22K | 0.00% | +100 | New |
| Capital Advisors, Ltd. LLC | 122 | $1.00K | 0.00% | 00.0% | Unchanged |
| Signaturefd, LLC | 54 | $659 | 0.00% | 00.0% | Unchanged |
| Root Financial Partners, LLC | 34 | $415 | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 25 | $305 | 0.00% | +25 | New |
| Allworth Financial LP | 15 | $183 | 0.00% | +15 | New |
| Optiver Holding B.V. | 6 | $73 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 6 | $73 | 0.00% | +6 | New |
| 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 |