Geospace TechnologiesGEOS
13F holders, Q2 2026 (June 30)82holders −4
19new positions
21sold out
2famous investors
$6.77avg. 13F price*
At the end of Q2 2026, 82 institutions reported holding Geospace Technologies Corp. (GEOS) in their 13F filings, down 4 from Q1 2026. 19 opened new positions and 21 sold out. The largest holders were Tieton Capital Management, LLC ($6.1M), Grace & White Inc. ($4.6M) and Vanguard Capital Management LLC ($3.5M). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Geospace Technologies Corp.
- CUSIP
- 37364X109
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 19 | $2.7M |
| Exits | 21 | $19.8M |
All 13F filers, Q1 2026 → Q2 2026: 904,615 shares bought and 2,472,811 shares sold, net −1,568,196 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 82 holders
| Tieton Capital Management, LLC | 1.77% | Reduce -0.5% | 907,265 | $6.1M |
| Grace & White Inc. | 0.73% | Add +42.3% | 673,236 | $4.6M |
| Vanguard Capital Management LLC | 0.00% | Reduce -10.7% | 515,067 | $3.5M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -20.1% | 392,423 | $2.7M |
| Marshall Wace, LLP | 0.00% | Add +59.9% | 301,916 | $2.0M |
| BlackRock, Inc. | 0.00% | Add +2.8% | 231,765 | $1.6M |
| US Bancorp \de | 0.00% | Add +67.4% | 212,766 | $1.4M |
| Sei Investments Co. | 0.00% | Reduce -51.5% | 199,365 | $1.3M |
| Geode Capital Management, LLC | 0.00% | Add +7.9% | 164,180 | $1.1M |
| State Street Corp. | 0.00% | Add +19.2% | 163,075 | $1.1M |
| De Lisle Partners LLP | 0.11% | No change | 147,133 | $998K |
| Robotti Robert | 0.14% | New | 128,436 | $870K |
| Two Sigma Investments, LP | 0.00% | Add +11.2% | 82,184 | $556K |
| Bridgeway Capital Management, LLC | 0.01% | Add +1.1% | 79,693 | $540K |
| Vanguard Fiduciary Trust Co. | 0.00% | Add +0.7% | 76,586 | $518K |
| Glenorchy Capital Ltd | 0.29% | Reduce -60.5% | 68,488 | $464K |
| Citadel Advisors | 0.00% | Add +77.3% | 58,018 | $393K |
| EagleClaw Capital Managment, LLC | 0.05% | Reduce -39.0% | 50,015 | $339K |
| Renaissance Technologies | 0.00% | New | 44,299 | $300K |
| Acadian Asset Management LLC | 0.00% | New | 42,713 | $286K |
| Ironwood Investment Management LLC | 0.08% | Add +0.7% | 36,279 | $246K |
| Jacobs Levy Equity Management, Inc. | 0.00% | New | 35,573 | $241K |
| Susquehanna International Group, LLP | 0.00% | Reduce -77.4% | 33,029 | $224K |
| Kingsview Wealth Management, LLC | 0.00% | Add +10.4% | 31,283 | $212K |
| HRT Financial LP | 0.00% | New | 30,656 | $207K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Reduce -32.6% | 29,865 | $202K |
| Northern Trust Corp. | 0.00% | Reduce -29.3% | 28,717 | $194K |
| American Century Companies Inc. | 0.00% | Reduce -3.8% | 28,201 | $191K |
| Goldman Sachs Group Inc. | 0.00% | New | 25,800 | $175K |
| Mraz, Amerine & Associates, Inc. | 0.02% | Add +1.3% | 24,385 | $165K |
| Elevation Point Wealth Partners, LLC | 0.00% | Reduce -0.2% | 24,313 | $165K |
| Vestmark Advisory Solutions, Inc. | 0.00% | No change | 24,313 | $165K |
| IMC-Chicago, LLC | 0.00% | Add +71.4% | 23,132 | $157K |
| Commonwealth Equity Services, LLC | 0.00% | Add +2.8% | 22,496 | $152K |
| Jane Street Group, LLC | 0.00% | New | 21,271 | $144K |
| Empowered Funds, LLC | 0.00% | No change | 20,291 | $137K |
| Tannin Capital LLC | 0.09% | Add +14.2% | 19,657 | $133K |
| Axq Capital, LP | 0.01% | New | 19,637 | $133K |
| Moors & Cabot, Inc. | 0.01% | Reduce -89.8% | 19,500 | $132K |
| Gsa Capital Partners LLP | 0.01% | New | 15,498 | $105K |
| Morgan Stanley | 0.00% | Reduce -7.7% | 15,255 | $103K |
| XTX Topco Ltd | 0.00% | New | 13,435 | $91K |
| Invesco Ltd. | 0.00% | New | 12,680 | $86K |
| Wells Fargo & Company | 0.00% | Add +22.3% | 12,448 | $84K |
| HUB Investment Partners, LLC | 0.00% | No change | 10,000 | $68K |
| UBS Group AG | 0.00% | Add +423.6% | 7,336 | $50K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 5,026 | $34K |
| Arax Advisory Partners | 0.00% | New | 4,660 | $32K |
| PNC Financial Services Group, Inc. | 0.00% | Add +100.0% | 4,000 | $27K |
| Simplex Trading, LLC | 0.00% | Add +424.0% | 2,075 | $14K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -10.8% | 1,611 | $11K |
| JPMorgan Chase & Co. | 0.00% | New | 1,621 | $11K |
| Osaic Holdings, Inc. | 0.00% | Reduce -16.2% | 1,377 | $9K |
| FMR LLC | 0.00% | Add +7.7% | 1,194 | $8K |
| Group One Trading LLC | 0.00% | Reduce -58.3% | 1,075 | $7K |
| Jones Financial Companies LLLP | 0.00% | No change | 1,060 | $7K |
| Larson Financial Group LLC | 0.00% | No change | 858 | $6K |
| Parvin Asset Management, LLC | 0.00% | No change | 750 | $5K |
| McGuire Capital Advisors Inc. | 0.00% | New | 750 | $5K |
| MCF Advisors LLC | 0.00% | New | 740 | $5K |
| Harbour Investments, Inc. | 0.00% | Add +2.0% | 515 | $3K |
| CoreCap Advisors, LLC | 0.00% | Reduce -47.4% | 500 | $3K |
| International Assets Investment Management, LLC | 0.00% | No change | 400 | $3K |
| Aventura Private Wealth, LLC | 0.00% | Reduce -22.1% | 300 | $2K |
| Royal Bank of Canada | 0.00% | Reduce -23.4% | 357 | $2K |
| Nemes Rush Group LLC | 0.00% | New | 280 | $2K |
| IFP Advisors, Inc | 0.00% | No change | 232 | $2K |
| Hurley Capital, LLC | 0.00% | No change | 206 | $1K |
| Farther Finance Advisors, LLC | 0.00% | Reduce -4.2% | 184 | $1K |
| Kingdom Financial Group LLC. | 0.00% | Reduce -9.3% | 176 | $1K |
| Capital Advisors, Ltd. LLC | 0.00% | No change | 122 | $1K |
| Toth Financial Advisory Corp. | 0.00% | No change | 100 | $677 |
| Triumph Capital Management | 0.00% | No change | 100 | $677 |
| Strategic Wealth Partners, Ltd. | 0.00% | New | 100 | $677 |
| BNP Paribas Financial Markets | 0.00% | Reduce -99.7% | 76 | $515 |
| Signaturefd, LLC | 0.00% | No change | 54 | $366 |
| Caitong International Asset Management Co., Ltd | 0.00% | Add +416.7% | 31 | $210 |
| Transamerica Financial Advisors, LLC | 0.00% | New | 27 | $182 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | No change | 25 | $169 |
| Buck Wealth Strategies, LLC | 0.00% | New | 20 | $135 |
| Allworth Financial LP | 0.00% | No change | 15 | $102 |
| Optiver Holding B.V. | 0.00% | No change | 6 | $41 |
"% of holder's portfolio" is GEOS's weight in each manager's 13F, not the share of Geospace Technologies Corp. the manager owns.