GEOSPACE TECHNOLOGIES CORP (GEOS)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
78
Reporting holders
$29.2M
Reported value
31.9%
Of shares outstanding
4.4%
Held as options
-3
Holder change
Institutions report 4,129,527 shares against 12,935,603 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| GRACE & WHITE INC /NY | $4.6M | 673,236 | 0.72% | 15q | +42.3%+$1.4M |
| VANGUARD CAPITAL MANAGEMENT LLC | $3.5M | 515,067 | 0.00% | 2q | -10.7%-$419.5K |
| DIMENSIONAL FUND ADVISORS LP | $2.7M | 392,423 | 0.00% | 31q | -20.1%-$667.4K |
| MARSHALL WACE, LLP | $2.0M | 301,916 | 0.00% | 3q | +59.9%+$765.8K |
| BlackRock, Inc. | $1.6M | 231,765 | 0.00% | 8q | +2.7%+$42.0K |
| US BANCORP \DE\ | $1.4M | 212,766 | 0.00% | 9q | +67.4%+$579.7K |
| SEI INVESTMENTS CO | $1.3M | 199,365 | 0.00% | 3q | -51.5%-$1.4M |
| GEODE CAPITAL MANAGEMENT, LLC | $1.1M | 164,180 | 0.00% | 31q | +7.9%+$81.5K |
| STATE STREET CORP | $1.1M | 163,075 | 0.00% | 31q | +19.2%+$177.5K |
| De Lisle Partners LLP | $998.3K | 147,133 | 0.11% | 10q | HELD |
| ROBOTTI ROBERT | $869.5K | 128,436 | 0.14% | new | NEW |
| CITADEL ADVISORS LLC | $710.3K | 58,018 | 0.00% | 6q | +77.3%+$309.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $590.5K | 33,029 | 0.00% | 7q | -77.4%-$2.0M |
| TWO SIGMA INVESTMENTS, LP | $556.4K | 82,184 | 0.00% | 5q | +11.2%+$56.0K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | $539.5K | 79,693 | 0.01% | 31q | +1.1%+$6.1K |
| VANGUARD FIDUCIARY TRUST CO | $518.5K | 76,586 | 0.00% | 2q | +0.7%+$3.5K |
| Glenorchy Capital Ltd | $463.7K | 68,488 | 0.02% | 11q | -60.5%-$709.8K |
| JANE STREET GROUP, LLC | $452.0K | 21,271 | 0.00% | new | NEW |
| IMC-Chicago, LLC | $418.6K | 23,132 | 0.00% | new | NEW |
| EagleClaw Capital Managment, LLC | $338.6K | 50,015 | 0.05% | 8q | -39.0%-$216.6K |
| RENAISSANCE TECHNOLOGIES LLC | $299.9K | 44,299 | 0.00% | new | NEW |
| IRONWOOD INVESTMENT MANAGEMENT LLC | $245.6K | 36,279 | 0.08% | 31q | +0.7%+$1.6K |
| JACOBS LEVY EQUITY MANAGEMENT, INC | $240.8K | 35,573 | 0.00% | new | NEW |
| Kingsview Wealth Management, LLC | $211.8K | 31,283 | 0.00% | 2q | +10.5%+$20.0K |
| NORTHERN TRUST CORP | $194.4K | 28,717 | 0.00% | 31q | -29.3%-$80.4K |
| AMERICAN CENTURY COMPANIES INC | $190.9K | 28,201 | 0.00% | 11q | -3.8%-$7.6K |
| GOLDMAN SACHS GROUP INC | $174.7K | 25,800 | 0.00% | new | NEW |
| Mraz, Amerine & Associates, Inc. | $165.1K | 24,385 | 0.02% | 31q | +1.3%+$2.1K |
| Vestmark Advisory Solutions, Inc. | $164.6K | 24,313 | 0.00% | 3q | HELD |
| ELEVATION POINT WEALTH PARTNERS, LLC | $164.6K | 24,313 | 0.00% | 3q | HELD |
| COMMONWEALTH EQUITY SERVICES, LLC | $152.3K | 22,496 | 0.00% | 3q | +2.8%+$4.1K |
| Empowered Funds, LLC | $137.4K | 20,291 | 0.00% | 9q | HELD |
| Tannin Capital LLC | $133.1K | 19,657 | 0.09% | 3q | +14.2%+$16.6K |
| AXQ CAPITAL, LP | $132.9K | 19,637 | 0.01% | new | NEW |
| Moors & Cabot, Inc. | $132.0K | 19,500 | 0.01% | 27q | -89.8%-$1.2M |
| MORGAN STANLEY | $103.3K | 15,255 | 0.00% | 35q | -7.6%-$8.6K |
| XTX Topco Ltd | $91.0K | 13,435 | 0.00% | new | NEW |
| Invesco Ltd. | $85.8K | 12,680 | 0.00% | new | NEW |
| WELLS FARGO & COMPANY/MN | $84.3K | 12,448 | 0.00% | 15q | -38.8%-$53.5K |
| HUB Investment Partners, LLC | $67.7K | 10,000 | 0.00% | 2q | HELD |
| UBS Group AG | $49.7K | 7,336 | 0.00% | 10q | +423.6%+$40.2K |
| Vanguard Global Advisers, LLC | $34.0K | 5,026 | 0.00% | 2q | HELD |
| Arax Advisory Partners | $31.5K | 4,660 | 0.00% | new | NEW |
| SIMPLEX TRADING, LLC | $29.6K | 2,075 | 0.00% | 3q | +424.0%+$24.0K |
| PNC Financial Services Group, Inc. | $27.1K | 4,000 | 0.00% | 2q | +100.0%+$13.5K |
| GROUP ONE TRADING LLC | $25.6K | 1,075 | 0.00% | 5q | -58.3%-$35.7K |
| SBI Securities Co., Ltd. | $10.9K | 1,611 | 0.00% | 7q | -10.8%-$1.3K |
| JPMORGAN CHASE & CO | $10.6K | 1,621 | 0.00% | new | NEW |
| OSAIC HOLDINGS, INC. | $9.3K | 1,377 | 0.00% | 14q | -16.2%-$1.8K |
| FMR LLC | $8.1K | 1,194 | 0.00% | 9q | +7.7% |
| Integrated Wealth Concepts LLC | $7.8K | 1,150 | 0.00% | new | NEW |
| JONES FINANCIAL COMPANIES LLLP | $6.8K | 1,060 | 0.00% | 5q | HELD |
| Tieton Capital Management, LLC | $6.1K | 907,265 | 1.77% | 31q | -0.5% |
| Larson Financial Group LLC | $5.8K | 858 | 0.00% | 2q | HELD |
| Parvin Asset Management, LLC | $5.1K | 750 | 0.00% | 3q | HELD |
| MCGUIRE CAPITAL ADVISORS INC | $5.1K | 750 | 0.00% | new | NEW |
| MCF Advisors LLC | $5.0K | 740 | 0.00% | new | NEW |
| HARBOUR INVESTMENTS, INC. | $3.5K | 515 | 0.00% | 4q | +2.0% |
| CoreCap Advisors, LLC | $3.4K | 500 | 0.00% | 4q | -47.4%-$3.0K |
| INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC | $2.7K | 400 | 0.00% | 3q | HELD |
| Aventura Private Wealth, LLC | $2.0K | 300 | 0.00% | 4q | -22.1% |
| ROYAL BANK OF CANADA | $2.0K | 357 | 0.00% | 11q | -23.4% |
| Nemes Rush Group LLC | $1.9K | 280 | 0.00% | new | NEW |
| IFP Advisors, Inc | $1.6K | 232 | 0.00% | 2q | HELD |
| Hurley Capital, LLC | $1.4K | 206 | 0.00% | 3q | HELD |
| MERCER GLOBAL ADVISORS INC /ADV | $1.4K | 200 | 0.00% | new | NEW |
| Farther Finance Advisors, LLC | $1.2K | 184 | 0.00% | 4q | -4.2% |
| Kingdom Financial Group LLC. | $1.2K | 176 | 0.00% | 3q | -9.3% |
| TOTH FINANCIAL ADVISORY CORP | $677 | 100 | 0.00% | 2q | HELD |
| Strategic Wealth Partners, Ltd. | $677 | 100 | 0.00% | new | NEW |
| Triumph Capital Management | $677 | 100 | 0.00% | 3q | HELD |
| BNP PARIBAS FINANCIAL MARKETS | $515 | 76 | 0.00% | 31q | -99.7%-$158.3K |
| Cambridge Investment Research Advisors, Inc. | $404 | 59,730 | 0.00% | 3q | +34.8% |
| SIGNATUREFD, LLC | $366 | 54 | 0.00% | 4q | HELD |
| ACADIAN ASSET MANAGEMENT LLC | $286 | 42,713 | 0.00% | new | NEW |
| Caitong International Asset Management Co., Ltd | $210 | 31 | 0.00% | 2q | +416.7% |
| HRT FINANCIAL LP | $207 | 30,656 | 0.00% | new | NEW |
| Transamerica Financial Advisors, LLC | $182 | 27 | 0.00% | new | NEW |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | $169 | 25 | 0.00% | 2q | HELD |
| Buck Wealth Strategies, LLC | $135 | 20 | 0.00% | new | NEW |
| GSA CAPITAL PARTNERS LLP | $105 | 15,498 | 0.01% | new | NEW |
| Allworth Financial LP | $102 | 15 | 0.00% | 2q | HELD |
| Optiver Holding B.V. | $41 | 6 | 0.00% | 4q | HELD |
| Capital Advisors, Ltd. LLC | $1 | 122 | 0.00% | 15q | HELD |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G/A | DISCIPLINED GROWTH INVESTORS INC /MN | 0.0% |
| 2026-07-31 | 13G/A | Vanguard Capital Management | 4.6% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 78 | $29.2M | 4,129,527 | 19 | 22 | 20 | 4.4% |
| Q1 2026 | 81 | $71.2M | 5,774,295 | 15 | 21 | 23 | 1.1% |
| Q4 2025 | 78 | $107.1M | 6,160,954 | 26 | 19 | 20 | 2.7% |
| Q3 2025 | 65 | $126.2M | 6,114,494 | 16 | 17 | 21 | 8.2% |
| Q2 2025 | 61 | $94.0M | 6,468,023 | 21 | 13 | 22 | 1.9% |
| Q1 2025 | 56 | $53.4M | 7,381,778 | 3 | 15 | 25 | 0.3% |
| Q4 2024 | 65 | $75.3M | 7,510,075 | 3 | 24 | 19 | 0.0% |
| Q3 2024 | 67 | $78.3M | 7,563,229 | 12 | 24 | 19 | 0.2% |
| Q2 2024 | 63 | $67.4M | 7,509,402 | 16 | 18 | 20 | 0.0% |
| Q1 2024 | 62 | $94.8M | 7,184,101 | 14 | 23 | 13 | 0.0% |
| Q4 2023 | 57 | $87.3M | 6,660,272 | 18 | 18 | 7 | 1.1% |
| Q3 2023 | 41 | $65.6M | 4,999,641 | 11 | 7 | 8 | 1.2% |
| Q2 2023 | 34 | $36.6M | 4,668,061 | 7 | 6 | 8 | 1.0% |
| Q1 2023 | 29 | $31.8M | 4,497,491 | 4 | 7 | 6 | 0.3% |
| Q4 2022 | 24 | $14.9M | 3,525,420 | 6 | 2 | 8 | 0.4% |
| Q3 2022 | 29 | $28.6M | 6,417,665 | 2 | 8 | 9 | 1.1% |
| Q2 2022 | 35 | $33.9M | 7,089,416 | 2 | 8 | 12 | 1.0% |
| Q1 2022 | 41 | $44.9M | 7,651,779 | 9 | 11 | 11 | 2.1% |
| Q4 2021 | 45 | $53.4M | 7,947,469 | 4 | 8 | 16 | 0.2% |
| Q3 2021 | 44 | $76.7M | 8,036,428 | 2 | 9 | 18 | 0.0% |
| Q2 2021 | 48 | $66.4M | 8,212,236 | 6 | 13 | 19 | 0.0% |
| Q1 2021 | 47 | $70.4M | 7,714,245 | 8 | 11 | 16 | 0.1% |
| Q4 2020 | 52 | $64.9M | 7,585,639 | 16 | 6 | 25 | 0.0% |
| Q3 2020 | 64 | $50.3M | 8,145,350 | 4 | 22 | 20 | 0.0% |
| Q2 2020 | 74 | $61.9M | 8,213,283 | 13 | 17 | 29 | 0.2% |
| Q1 2020 | 72 | $59.3M | 9,270,239 | 3 | 26 | 24 | 0.0% |
| Q4 2019 | 88 | $163.7M | 9,763,322 | 12 | 28 | 22 | 0.0% |
| Q3 2019 | 90 | $142.9M | 9,269,076 | 5 | 29 | 22 | 0.3% |
| Q2 2019 | 88 | $135.4M | 8,896,922 | 16 | 35 | 15 | 0.8% |
| Q1 2019 | 86 | $108.8M | 8,396,992 | 9 | 27 | 25 | 0.1% |
| Q4 2018 | 86 | $87.7M | 8,503,011 | 3 | 0 | 2 | 0.0% |