Geospace Technologies Corporation
Geospace Technologies Corporation (GEOS) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · GEOS · as of Sep 30, 2025
Ownership Breakdown
75
Institutional Holders
▲ 7 vs Q2
$133.66M
Total Inst. Value
▲ $29.23M vs Q2
12.94M
Shares Outstanding
freeFloat 96.44%
7.05M
13F Shares Held
▼ 272,515 vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
GEOS largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
DISCIPLINED GROWTH INVESTORS INC /MN measuring & controlling devices, nec | 1.15M | 9.01% | 9.01% | $21.87B | Nov 14, 2025 | ▼ 91.2K |
TIETON CAPITAL MANAGEMENT, LLC measuring & controlling devices, nec | 888.3K | 6.94% | 6.94% | $16.84B | Nov 12, 2025 | ▲ 29.2K |
MOORS & CABOT, INC. measuring & controlling devices, nec | 714.8K | 5.58% | 5.58% | $13.55B | Nov 14, 2025 | ▼ 49.9K |
VANGUARD GROUP INC measuring & controlling devices, nec | 634.5K | 4.95% | 4.95% | $12.03B | Nov 7, 2025 | ▼ 24.3K |
DIMENSIONAL FUND ADVISORS LP measuring & controlling devices, nec | 628.4K | 4.91% | 4.91% | $11.91B | Nov 12, 2025 | ▼ 51.3K |
FIRST EAGLE INVESTMENT MANAGEMENT, LLC measuring & controlling devices, nec | 522.9K | 4.08% | 4.08% | $9.91B | Nov 12, 2025 | ▲ 13.5K |
GRACE & WHITE INC /NY measuring & controlling devices, nec | 314.5K | 2.46% | 2.46% | $5.96B | Oct 23, 2025 | ▼ 15.8K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP measuring & controlling devices, nec | 266.2K | 2.08% | 2.08% | $5.05B | Nov 14, 2025 | ▲ 247.8K |
BLACKROCK, INC. measuring & controlling devices, nec | 207.2K | 1.62% | 1.62% | $3.93B | Nov 12, 2025 | ▼ 205.8K |
GLENORCHY CAPITAL LTD measuring & controlling devices, nec | 182.3K | 1.42% | 1.42% | $3.46B | Oct 30, 2025 | ▼ 11.6K |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
20
Increased
+595.0K shares7
New Positions
first time holders18
Decreased
−572.3K shares0
Sold Out
fully exitedNet shares change (top 50)
+22.6K
+595.0K / −572.3K
Net new holders
+9
7 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
GEOS insider trading · insider activity
Source: SEC Form 4
3
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Wheeler Walter R. director | Feb 9, 2025 | Award | 3,500 | — | — | 172.0K | Form 4 ↗ |
Miles Richard F director | Feb 9, 2026 | Award | 3,500 | — | — | 48.1K | Form 4 ↗ |
DAVIS THOMAS L director | Feb 9, 2026 | Award | 3,500 | — | — | 65.5K | Form 4 ↗ |
Giesinger Edgar R. JR. director | Feb 9, 2026 | Award | 3,500 | — | — | 43.0K | Form 4 ↗ |
Ashworth Margaret director | Feb 9, 2025 | Award | 3,500 | — | — | 34.4K | Form 4 ↗ |
JUMPER STEPHEN C director | Feb 9, 2025 | Award | 3,500 | — | — | 14.9K | Form 4 ↗ |
Bushey Ronald Todd Chief Technical Officer | Dec 2, 2025 | Tax Withhold | 275 | — | — | 12.1K | Form 4 ↗ |
Kelley Richard James President & CEO | Dec 5, 2025 | Tax Withhold | 275 | — | — | 42.0K | Form 4 ↗ |
Curda Robert L. Vice President & CFO | Dec 5, 2025 | Tax Withhold | 165 | — | — | 61.1K | Form 4 ↗ |
Bushey Ronald Todd Chief Technical Officer | Nov 25, 2025 | Award | 4,000 | — | — | 12.4K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Geospace Technologies Corporation (GEOS) is primarily owned by institutional investors, who hold approximately 54.5% of total shares outstanding. Company insiders own approximately 3.56%, while retail and public investors account for the remaining 41.95%.
The largest institutional shareholder of Geospace Technologies Corporation is DISCIPLINED GROWTH INVESTORS INC /MN, holding approximately 1.15 million shares — equal to 9.01% of outstanding shares — as of September 30, 2025.
A total of 75 institutional investors currently hold GEOS stock, with a combined institutional value of approximately $133,655,336 as of the most recent 13F filing period.
Frequently asked questions
GEOS ownershipGeospace Technologies Corporation (GEOS) is primarily owned by institutional investors, who hold approximately 54.5% of shares. The largest shareholder is DISCIPLINED GROWTH INVESTORS INC /MN with a 9.01% stake. Company insiders hold 3.56%. Data sourced from SEC Form 13F as of September 30, 2025.