Equibles
  • Stocks
  • GEOS Geospace Technologies Corp

GEOS

Geospace Technologies Corp

Company with tickers: GEOS

CIK
1001115
CUSIP
37364X109
Shares Outstanding
12,935,603
13F Activity (30d)
75 filings 75 filers
Holders: 86
Total Value: $82,757,229
Total Shares: 6,783,382

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 86 13F filers · Δ vs Dec 31, 2025
Top Holder
16.2%
Jun 2023 → Mar 2026 · range 15.1% – 25.8%
+0.7 pts
Top 5
52.4%
Jun 2023 → Mar 2026 · range 49.8% – 72.6%
+0.6 pts
Top 10
71.0%
Jun 2023 → Mar 2026 · range 67.2% – 88.7%
−1.0 pts
HHI
737
Jun 2023 → Mar 2026 · range 703 – 1,290
Broadly held +34

Quarterly Activity

vs Dec 31, 2025
New
20
Increased
23
Decreased
26
Sold Out
18
Unchanged
17
Holder count: +2
Institutional value: -33.0%
Shares held: -7.1%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds Open
Large SEI INVESTMENTS CO +213,950 410,906
Large MARSHALL WACE, LLP +177,021 188,806
Small GRACE & WHITE INC /NY +165,406 473,201
Mega MILLENNIUM MANAGEMENT LLC +45,366 107,386
Small Tieton Capital Management, LLC +27,942 912,118

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds Open
Mid Moors & Cabot, Inc. −385,350 190,600
Large First Eagle Investment Management, LLC −190,273 240,000
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP −121,190 191,995
Mega CITADEL ADVISORS LLC −78,508 47,518
Mega DIMENSIONAL FUND ADVISORS LP −53,083 491,016

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD) Open
Mega VANGUARD CAPITAL MANAGEMENT LLC 577,032 $7,039,790
Mega VANGUARD FIDUCIARY TRUST CO 76,065 $927,993
Mid Kingsview Wealth Management, LLC 28,322 $345,528
Large Schonfeld Strategic Advisors LLC 16,282 $198,640
Mid HUB Investment Partners, LLC 10,000 $122,000

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD) Open
Mega VANGUARD GROUP INC 648,222 $10,961,433
Mega GOLDMAN SACHS GROUP INC 60,136 $1,016,899
Mid Brooklyn Investment Group 43,799 $740,641
Small Peapod Lane Capital LLC 37,817 $639,485
Mid AlphaQuest LLC 27,604 $466,783
Filter: New 20 Increased 23 Reduced 26 Sold out 18 Unchanged 17
89 of 89 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Open
Mid DISCIPLINED GROWTH INVESTORS INC /MN $13,437,397 16.24% 1,101,426
Small Tieton Capital Management, LLC $11,127,839 13.45% 912,118
Mega VANGUARD CAPITAL MANAGEMENT LLC $7,039,790 8.51% 577,032
Mega DIMENSIONAL FUND ADVISORS LP $5,990,394 7.24% 491,016
Small GRACE & WHITE INC /NY $5,773,052 6.98% 473,201
Large SEI INVESTMENTS CO $5,013,053 6.06% 410,906
Large First Eagle Investment Management, LLC $2,928,000 3.54% 240,000
Mega BlackRock, Inc. $2,751,928 3.33% 225,568
Mid Moors & Cabot, Inc. $2,325,320 2.81% 190,600
Large MARSHALL WACE, LLP $2,303,432 2.78% 188,806
Mid Glenorchy Capital Ltd $2,114,735 2.56% 173,339
Mega GEODE CAPITAL MANAGEMENT, LLC $1,856,278 2.24% 152,154
Small De Lisle Partners LLP $1,795,022 2.17% 147,133
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $1,786,019 2.16% 146,395
Mega STATE STREET CORP $1,669,606 2.02% 136,853
Large US BANCORP \DE\ Bank $1,551,034 1.87% 127,134
Mega MILLENNIUM MANAGEMENT LLC $1,310,109 1.58% 107,386
Small EagleClaw Capital Managment, LLC $1,000,583 1.21% 82,015
Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC $961,274 1.16% 78,793
Mega VANGUARD FIDUCIARY TRUST CO Bank $927,993 1.12% 76,065
Mega TWO SIGMA INVESTMENTS, LP $901,665 1.09% 73,907
Large Cambridge Investment Research Advisors, Inc. $540,423 0.65% 44,297
Mega NORTHERN TRUST CORP Bank $495,271 0.60% 40,596
Mid 683 Capital Management, LLC $478,874 0.58% 39,252
Small IRONWOOD INVESTMENT MANAGEMENT LLC $439,712 0.53% 36,042
Mega CITADEL ADVISORS LLC $399,158 0.48% 32,718
Mega AMERICAN CENTURY COMPANIES INC $357,691 0.43% 29,319
Mid Kingsview Wealth Management, LLC $345,528 0.42% 28,322
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $303,780 0.37% 24,900
Mid ELEVATION POINT WEALTH PARTNERS, LLC $297,131 0.36% 24,355
Mid Vestmark Advisory Solutions, Inc. $296,618 0.36% 24,313
Small Mraz, Amerine & Associates, Inc. $293,788 0.35% 24,081
Mega BNP PARIBAS ARBITRAGE, SA $285,992 0.35% 23,442
Large Hudson Bay Capital Management LP $271,974 0.33% 22,293
Large Qube Research & Technologies Ltd $267,289 0.32% 21,909
Large COMMONWEALTH EQUITY SERVICES, LLC $266,997 0.32% 21,885
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $252,540 0.31% 20,700
Large Empowered Funds, LLC $247,550 0.30% 20,291
Mega BANK OF AMERICA CORP /DE/ Bank $220,332 0.27% 18,060
Micro Tannin Capital LLC $209,949 0.25% 17,209
Mega MORGAN STANLEY $201,518 0.24% 16,518
Large Schonfeld Strategic Advisors LLC $198,640 0.24% 16,282
Mega CITADEL ADVISORS LLC $180,560 0.22% 14,800
Small ESSEX INVESTMENT MANAGEMENT CO LLC $166,359 0.20% 13,636
Mid IMC-Chicago, LLC $164,675 0.20% 13,498
Mega BARCLAYS PLC $144,765 0.17% 11,866
Large OMERS ADMINISTRATION Corp $135,420 0.16% 11,100
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $126,087 0.15% 10,335
Mega WELLS FARGO & COMPANY/MN $124,171 0.15% 10,178
Mid HUB Investment Partners, LLC $122,000 0.15% 10,000
Mega Vanguard Global Advisers, LLC $61,317 0.07% 5,026
Mid GROUP ONE TRADING LLC $31,415 0.04% 2,575
Mega PNC FINANCIAL SERVICES GROUP, INC. $24,400 0.03% 2,000
Mid SBI Securities Co., Ltd. Broker-Dealer $22,033 0.03% 1,806
Large OSAIC HOLDINGS, INC. $20,044 0.02% 1,643
Mid TrinityBridge Ltd $19,520 0.02% 1,600
Mega UBS Group AG $17,092 0.02% 1,401
Large Steward Partners Investment Advisory, LLC $14,640 0.02% 1,200
Mega CITIGROUP INC $13,737 0.02% 1,126
Mega FMR LLC $13,529 0.02% 1,109
Large JONES FINANCIAL COMPANIES LLLP $12,932 0.02% 1,060
Small CoreCap Advisors, LLC $11,590 0.01% 950
Mid Larson Financial Group LLC $10,467 0.01% 858
Small Parvin Asset Management, LLC $9,150 0.01% 750
Small Truvestments Capital LLC $9,089 0.01% 745
Small Covestor Ltd $8,881 0.01% 728
Mid HARBOUR INVESTMENTS, INC. $6,161 0.01% 505
Mega ROYAL BANK OF CANADA Bank $5,685 0.01% 466
Mega RHUMBLINE ADVISERS $5,355 0.01% 439
Mid INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC $4,880 0.01% 400
Mid SIMPLEX TRADING, LLC $4,831 0.01% 396
Small Aventura Private Wealth, LLC $4,697 0.01% 385
Small Sunbelt Securities, Inc. Broker-Dealer $3,660 0.00% 300
Mid IFP Advisors, Inc $2,830 0.00% 232
Micro Hurley Capital, LLC $2,513 0.00% 206
Mid Advisory Services Network, LLC $2,440 0.00% 200
Micro Kingdom Financial Group LLC. $2,366 0.00% 194
Micro Lloyd Advisory Services, LLC. $2,366 0.00% 194
Mid Farther Finance Advisors, LLC $2,342 0.00% 192
Large CWM, LLC $2,318 0.00% 190
Small Capital Advisors, Ltd. LLC $1,488 0.00% 122
Small Triumph Capital Management $1,220 0.00% 100
Small TOTH FINANCIAL ADVISORY CORP $1,220 0.00% 100
Mid SIGNATUREFD, LLC $658 0.00% 54
Small Root Financial Partners, LLC $414 0.00% 34
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $305 0.00% 25
Mid Allworth Financial LP $183 0.00% 15
Small Caitong International Asset Management Co., Ltd $73 0.00% 6
Mid Optiver Holding B.V. $73 0.00% 6

Report a Problem

Category
Description
Email (optional, for follow-up)