GEOS — GEOSPACE TECHNOLOGIES CORP
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Others in Industrials
Measured signals that fired on GEOS
| date | signal | measured base rate |
|---|---|---|
| 2026-07-08 | Short volume far above its own normal short | -0.76% over 21 days · t = -2.79 · n = 5,897 statistically distinguishable from its control group |
| 2026-06-09 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-05-08 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
| 2026-04-10 | Equal lows taken out structure | -0.64% over 21 days · t = -4.75 · n = 55,661 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-02-09 | Miles Richard F Director | Grant or award | 3.5K | 0.00 | 0 |
| 2026-02-09 | DAVIS THOMAS L Director | Grant or award | 3.5K | 0.00 | 0 |
| 2026-02-09 | Giesinger Edgar R. JR. Director | Grant or award | 3.5K | 0.00 | 0 |
| 2025-12-05 | Curda Robert L. Vice President & CFO | Shares withheld for tax | 165 | 0.00 | 0 |
| 2025-12-05 | Kelley Richard James President & CEO | Shares withheld for tax | 275 | 0.00 | 0 |
| 2025-12-02 | Bushey Ronald Todd Chief Technical Officer | Shares withheld for tax | 275 | 0.00 | 0 |
| 2025-11-25 | Bushey Ronald Todd Chief Technical Officer | Grant or award | 4.0K | 0.00 | 0 |
| 2025-11-25 | Bushey Ronald Todd Chief Technical Officer | Grant or award | 4.0K | 0.00 | 0 |
| 2025-11-25 | Curda Robert L. Vice President & CFO | Grant or award | 4.0K | 0.00 | 0 |
| 2025-11-25 | Kelley Richard James President & CEO | Grant or award | 8.0K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| DISCIPLINED GROWTH INVESTORS INC /MN | 13.4M | 1.1M |
| VANGUARD CAPITAL MANAGEMENT LLC | 7.0M | 577.0K |
| DIMENSIONAL FUND ADVISORS LP | 6.0M | 491.0K |
| GRACE & WHITE INC /NY | 5.8M | 473.2K |
| SEI INVESTMENTS CO | 5.0M | 410.9K |
| First Eagle Investment Management, LLC | 2.9M | 240.0K |
| BlackRock, Inc. | 2.8M | 225.6K |
| Moors & Cabot, Inc. | 2.3M | 190.6K |
| MARSHALL WACE, LLP | 2.3M | 188.8K |
| Glenorchy Capital Ltd | 2.1M | 173.3K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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