Geospace TechnologiesGEOS
13F holders, Q4 2025 (December 31)84holders +15
27new positions
10sold out
2famous investors
$16.91avg. 13F price*
At the end of Q4 2025, 84 institutions reported holding Geospace Technologies Corp. (GEOS) in their 13F filings, up 15 from Q3 2025. 27 opened new positions and 10 sold out. The largest holders were Disciplined Growth Investors Inc. ($19.1M), Tieton Capital Management, LLC ($15.0M) and Vanguard Group Inc. ($11.0M). 2 famous investors held it, including Israel Englander (0.0% of Millennium Management'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 Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 27 | $10.4M |
| Exits | 10 | $3.1M |
All 13F filers, Q3 2025 → Q4 2025: 928,506 shares bought and 812,962 shares sold, net +115,544 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 84 holders
| Disciplined Growth Investors Inc. | 0.37% | Reduce -1.9% | 1,131,568 | $19.1M |
| Tieton Capital Management, LLC | 5.11% | Reduce -0.5% | 884,176 | $15.0M |
| Vanguard Group Inc. | 0.00% | Add +2.2% | 648,222 | $11.0M |
| Moors & Cabot, Inc. | 0.42% | Reduce -19.4% | 575,950 | $9.7M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -13.4% | 544,099 | $9.2M |
| First Eagle Investment Management, LLC | 0.01% | Reduce -17.7% | 430,273 | $7.3M |
| Grace & White Inc. | 0.94% | Reduce -2.1% | 307,795 | $5.2M |
| Susquehanna International Group, LLP | 0.01% | Add +57.6% | 231,285 | $3.9M |
| BlackRock, Inc. | 0.00% | Add +6.7% | 221,106 | $3.7M |
| Sei Investments Co. | 0.00% | New | 196,956 | $3.3M |
| Glenorchy Capital Ltd | 1.88% | Reduce -6.2% | 170,992 | $2.9M |
| De Lisle Partners LLP | 0.32% | Add +2.0% | 147,133 | $2.5M |
| Geode Capital Management, LLC | 0.00% | Add +2.5% | 146,107 | $2.5M |
| US Bancorp \de | 0.00% | Add +2.5% | 127,134 | $2.1M |
| State Street Corp. | 0.00% | Add +118.3% | 125,936 | $2.1M |
| Bridgeway Capital Management, LLC | 0.04% | Reduce -17.3% | 114,707 | $1.9M |
| Millennium Management | 0.00% | Reduce -48.7% | 62,020 | $1.0M |
| EagleClaw Capital Managment, LLC | 0.15% | No change | 61,150 | $1.0M |
| Goldman Sachs Group Inc. | 0.00% | Add +229.1% | 60,136 | $1.0M |
| Citadel Advisors | 0.00% | Add +15.6% | 58,726 | $993K |
| Two Sigma Investments, LP | 0.00% | Add +57.6% | 58,288 | $986K |
| Cambridge Investment Research Advisors, Inc. | 0.00% | New | 58,174 | $984K |
| Brooklyn Investment Group | 0.04% | New | 43,799 | $762K |
| Empowered Funds, LLC | 0.01% | Reduce -37.2% | 40,291 | $681K |
| 683 Capital Management, LLC | 0.06% | New | 39,252 | $664K |
| Northern Trust Corp. | 0.00% | Reduce -2.0% | 38,938 | $658K |
| Peapod Lane Capital LLC | 0.54% | Reduce -55.5% | 37,817 | $639K |
| Ironwood Investment Management LLC | 0.26% | Reduce -0.2% | 36,776 | $622K |
| Qube Research & Technologies Ltd | 0.00% | New | 32,251 | $545K |
| American Century Companies Inc. | 0.00% | Reduce -64.8% | 30,141 | $510K |
| AlphaQuest LLC | 0.03% | Add +11.6% | 27,604 | $467K |
| ExodusPoint Capital Management, LP | 0.00% | New | 25,049 | $424K |
| Jane Street Group, LLC | 0.00% | Reduce -30.7% | 24,918 | $421K |
| Gsa Capital Partners LLP | 0.04% | Add +12.8% | 24,520 | $415K |
| Elevation Point Wealth Partners, LLC | 0.02% | New | 24,271 | $410K |
| Vestmark Advisory Solutions, Inc. | 0.01% | New | 24,271 | $410K |
| Mraz, Amerine & Associates, Inc. | 0.06% | No change | 24,081 | $407K |
| Barclays PLC | 0.00% | Add +305.2% | 23,344 | $395K |
| XTX Topco Ltd | 0.01% | New | 22,936 | $388K |
| Acadian Asset Management LLC | 0.00% | Add +56.0% | 22,058 | $372K |
| Commonwealth Equity Services, LLC | 0.00% | New | 21,885 | $370K |
| OMERS ADMINISTRATION Corp | 0.00% | New | 20,100 | $340K |
| Hudson Bay Capital Management LP | 0.00% | New | 18,714 | $316K |
| Morgan Stanley | 0.00% | Add +129.0% | 17,264 | $292K |
| FourThought Financial Partners, LLC | 0.02% | New | 16,339 | $276K |
| Bank of America Corp. | 0.00% | Reduce -39.6% | 14,665 | $248K |
| Essex Investment Management Co. LLC | 0.04% | No change | 13,636 | $231K |
| Tannin Capital LLC | 0.20% | — | 13,545 | $229K |
| LPL Financial LLC | 0.00% | New | 13,200 | $223K |
| IMC-Chicago, LLC | 0.00% | New | 12,478 | $211K |
| Marshall Wace, LLP | 0.00% | New | 11,785 | $199K |
| Wells Fargo & Company | 0.00% | Reduce -28.4% | 10,908 | $184K |
| Balyasny Asset Management L.P. | 0.00% | New | 10,530 | $178K |
| Charles Schwab Investment Management Inc. | 0.00% | New | 10,429 | $176K |
| UBS Group AG | 0.00% | Add +190.0% | 6,817 | $115K |
| CIBC Private Wealth Group LLC | 0.00% | Reduce -5.0% | 6,650 | $112K |
| Tower Research Capital LLC (TRC) | 0.00% | New | 5,230 | $88K |
| Kestra Advisory Services, LLC | 0.00% | New | 3,952 | $67K |
| Citigroup Inc. | 0.00% | Add +689.7% | 3,309 | $56K |
| Osaic Holdings, Inc. | 0.00% | Add +127.8% | 2,365 | $40K |
| Simplex Trading, LLC | 0.00% | New | 2,001 | $34K |
| SBI Securities Co., Ltd. | 0.00% | Reduce -11.8% | 1,290 | $22K |
| Farther Finance Advisors, LLC | 0.00% | Add +272.2% | 1,180 | $20K |
| FMR LLC | 0.00% | No change | 1,111 | $19K |
| CoreCap Advisors, LLC | 0.00% | Add +90.0% | 950 | $16K |
| BNP Paribas Financial Markets | 0.00% | Reduce -77.0% | 796 | $13K |
| Parvin Asset Management, LLC | 0.01% | New | 750 | $13K |
| Royal Bank of Canada | 0.00% | Reduce -98.5% | 711 | $12K |
| International Assets Investment Management, LLC | 0.00% | New | 700 | $12K |
| Jones Financial Companies LLLP | 0.00% | Add +329.6% | 580 | $10K |
| Rhumbline Advisers | 0.00% | No change | 439 | $7K |
| Hazlett, Burt & Watson, Inc. | 0.00% | New | 400 | $7K |
| Aventura Private Wealth, LLC | 0.00% | Reduce -80.9% | 324 | $5K |
| Sunbelt Securities, Inc. | 0.00% | No change | 300 | $5K |
| Hurley Capital, LLC | 0.00% | New | 206 | $3K |
| Kingdom Financial Group LLC. | 0.00% | New | 194 | $3K |
| Cwm, LLC | 0.00% | Add +234.4% | 204 | $3K |
| Capital Advisors, Ltd. LLC | 0.00% | No change | 122 | $2K |
| Triumph Capital Management | 0.00% | New | 100 | $2K |
| REAP Financial Group, LLC | 0.00% | No change | 100 | $2K |
| Signaturefd, LLC | 0.00% | No change | 54 | $913 |
| Root Financial Partners, LLC | 0.00% | No change | 34 | $575 |
| Optiver Holding B.V. | 0.00% | No change | 6 | $101 |
| Harbour Investments, Inc. | 0.00% | No change | 5 | $85 |
"% of holder's portfolio" is GEOS's weight in each manager's 13F, not the share of Geospace Technologies Corp. the manager owns.