GEOSPACE TECHNOLOGIES CORP
Total Trades
13
Buys
10
Sells
3
Largest Trade
$100K–$500K
Insiders
4
Institutional Funds
63
Inst. Value
$1M+
Activist Filings
24
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Miles Richard F | Director | SELL | $50K–$100K | 5K | $12.04 | Feb 27, 2024 |
| Adams Robbin B. | SVP & Chief Techni… | SELL | $15K–$50K | 1K | $12.28 | Feb 26, 2024 |
| Adams Robbin B. | SVP & Chief Techni… | SELL | $15K–$50K | 3K | $12.30 | Feb 21, 2024 |
| OWENS GARY D | Director | BUY | $100K–$500K | 50K | $5.50 | Feb 22, 2023 |
| OWENS GARY D | Director | BUY | $15K–$50K | 7K | $5.00 | Sep 7, 2022 |
| OWENS GARY D | Director | BUY | $100K–$500K | 30K | $4.89 | Sep 1, 2022 |
| OWENS GARY D | Director | BUY | $1K–$15K | 1K | $4.98 | Aug 23, 2022 |
| OWENS GARY D | Director | BUY | $100K–$500K | 49K | $4.84 | Aug 17, 2022 |
| OWENS GARY D | Director | BUY | $100K–$500K | 75K | $5.33 | May 19, 2022 |
| OWENS GARY D | Director | BUY | $50K–$100K | 15K | $5.42 | Feb 28, 2022 |
| OWENS GARY D | Director | BUY | $100K–$500K | 21K | $5.41 | Feb 25, 2022 |
| OWENS GARY D | Director | BUY | $50K–$100K | 14K | $5.47 | Feb 24, 2022 |
| Wheeler Walter R. | President & CEO | BUY | $1K–$15K | 2K | $5.00 | Feb 17, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 63 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| Tieton Capital Management, LLC | 884K | $1M+ | SH |
| Moors & Cabot, Inc. | 576K | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 516K | $1M+ | SH |
| First Eagle Investment Management, LLC | 430K | $1M+ | SH |
| GRACE & WHITE INC /NY | 308K | $1M+ | SH |
| SEI INVESTMENTS CO | 197K | $1M+ | SH |
| Glenorchy Capital Ltd | 171K | $1M+ | SH |
| De Lisle Partners LLP | 147K | $1M+ | SH |
| US BANCORP \DE\ | 127K | $1M+ | SH |
| STATE STREET CORP | 126K | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 120K | $1M+ | SH |
| VANGUARD GROUP INC | 76K | $1M+ | SH |
| EagleClaw Capital Managment, LLC | 61K | $1M+ | SH |
| GOLDMAN SACHS GROUP INC | 60K | $1M+ | SH |
| Cambridge Investment Research Advisors, Inc. | 58K | $500K+ | SH |
| Brooklyn Investment Group | 44K | $500K+ | SH |
| Empowered Funds, LLC | 40K | $500K+ | SH |
| Empowered Funds, LLC | 40K | $500K+ | SH |
| Peapod Lane Capital LLC | 38K | $500K+ | SH |
| IRONWOOD INVESTMENT MANAGEMENT LLC | 37K | $500K+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G · Jan 30, 2026
5.0%
648K shares
DISCIPLINED GROWTH INVESTORS INC /MN
SC 13G/A · Nov 14, 2025
9.0%
1.2M shares
SC 13G/A · Oct 30, 2025
4.9%
634K shares
SC 13G/A · Oct 9, 2025
4.9%
628K shares
DISCIPLINED GROWTH INVESTORS INC /MN
SC 13G/A · Aug 14, 2025
9.7%
1.2M shares
SC 13G/A · Jul 17, 2025
2.7%
342K shares
DISCIPLINED GROWTH INVESTORS INC /MN
SC 13G/A · May 15, 2025
9.9%
1.3M shares
DISCIPLINED GROWTH INVESTORS INC /MN
SC 13G/A · Feb 14, 2025
11.2%
1.4M shares
Tieton Capital Management, LLC
SC 13G/A · Feb 11, 2025
6.9%
886K shares
SC 13G · Jan 23, 2025
5.1%
650K shares
DISCIPLINED GROWTH INVESTORS INC /MN
SC 13G/A · Nov 14, 2024
12.1%
1.6M shares
SC 13G · Nov 8, 2024
6.9%
886K shares
SC 13G · Oct 22, 2024
6.9%
886K shares
Disciplined Growth Investors, Inc.
SC 13G/A · Feb 14, 2024
11.2%
1.5M shares
The Vanguard Group - 23-1945930
SC 13G · Feb 13, 2024
5.0%
666K shares
Tieton Capital Management 20-2956186
SC 13G/A · Feb 1, 2024
5.6%
733K shares
S.S. OR I.R.S.IDENTIFICATION NOS. OF ABOVE PERSONS Gate City Capital Management, LLC
SC 13G/A · Oct 10, 2023
7.4%
974K shares
Disciplined Growth Investors, Inc.
SC 13G/A · Feb 14, 2023
11.8%
1.5M shares
SC 13G/A · Feb 13, 2023
4.4%
580K shares
Dimensional Fund Advisors LP 30-0447847
SC 13G/A · Feb 10, 2023
4.2%
545K shares
Tieton Capital Management 20-2956186
SC 13G · Jan 25, 2023
6.5%
847K shares
S.S. OR I.R.S.IDENTIFICATION NOS. OF ABOVE PERSONS Gate City Capital Management, LLC
SC 13G · Jan 10, 2023
12.8%
1.7M shares
SC 13G/A · May 10, 2022
2.1%
271K shares
Disciplined Growth Investors, Inc.
SC 13G/A · Feb 14, 2022
11.5%
1.5M shares