GEOSPACE TECHNOLOGIES CORP - Common Stock (GEOS) Institutional Ownership

13F Institutional Holders and Ownership History from Q1 2014 to Q4 2025

Type / Class
Equity / Common Stock
Symbol
GEOS on Nasdaq
Shares outstanding
12,817,656
Price per share
$16.91
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares
7,049,684
Total reported value
$133,655,279
% of total 13F portfolios
0%
Share change
-275,410
Value change
-$4,677,170
Number of holders
68
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of GEOSPACE TECHNOLOGIES CORP - Common Stock (GEOS) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
DISCIPLINED GROWTH INVESTORS INC /MN 9% -7% $21,872,047 -$1,728,773 1,153,589 -7.3% DISCIPLINED GROWTH INVESTORS INC /MN 30 Sep 2025
Tieton Capital Management, LLC 6.9% $5,606,399 885,687 Tieton Capital Management, LLC 31 Dec 2024
VANGUARD GROUP INC 4.9% $12,029,418 634,463 The Vanguard Group 30 Sep 2025
DIMENSIONAL FUND ADVISORS LP 4.9% -4% $10,412,654 -$356,736 628,404 -3.3% Dimensional Fund Advisors LP 30 Sep 2025
BlackRock, Inc. 2.7% $2,275,069 341,602 BlackRock, Inc. 30 Jun 2025

As of 30 Sep 2025, 68 institutional investors reported holding 7,049,684 shares of GEOSPACE TECHNOLOGIES CORP - Common Stock (GEOS). This represents 55% of the company’s total 12,817,656 outstanding shares.

Top 25 Institutional Shareholders

The largest institutional shareholders of GEOSPACE TECHNOLOGIES CORP - Common Stock (GEOS) together control 52% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.

Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
DISCIPLINED GROWTH INVESTORS INC /MN 9% 1,153,589 -7.3% 0.4% $21,872,047
Tieton Capital Management, LLC 6.9% 888,336 +3.4% 5.8% $16,843,000
Moors & Cabot, Inc. 5.6% 714,750 -6.5% 0.59% $13,551,660
VANGUARD GROUP INC 4.9% 634,463 -3.7% 0% $12,029,418
DIMENSIONAL FUND ADVISORS LP 4.9% 628,404 -7.5% 0% $11,914,667
First Eagle Investment Management, LLC 4.1% 522,864 +2.7% 0.02% $9,913,501
GRACE & WHITE INC /NY 2.5% 314,546 -4.8% 1.1% $5,963,792
BlackRock, Inc. 1.6% 207,165 -50% 0% $3,927,848
Glenorchy Capital Ltd 1.4% 182,260 -6% 2.5% $3,455,667
SUSQUEHANNA INTERNATIONAL GROUP, LLP 1.1% 146,744 +81% 0% $2,782,266
De Lisle Partners LLP 1.1% 144,234 0% 0.33% $2,726,744
GEODE CAPITAL MANAGEMENT, LLC 1.1% 142,600 +1% 0% $2,704,742
BRIDGEWAY CAPITAL MANAGEMENT, LLC 1.1% 138,619 +5.4% 0.06% $2,628,216
US BANCORP \DE\ 0.97% 124,034 0% 0% $2,351,685
MILLENNIUM MANAGEMENT LLC 0.94% 120,854 -17% 0% $2,291,392
AMERICAN CENTURY COMPANIES INC 0.67% 85,531 -8.3% 0% $1,621,668
Peapod Lane Capital LLC 0.66% 85,004 -34% 1.4% $1,612,490
Empowered Funds, LLC 0.5% 64,203 +13% 0.01% $1,217,289
EagleClaw Capital Managment, LLC 0.48% 61,150 +69% 0.16% $1,159,404
STATE STREET CORP 0.45% 57,689 +13% 0% $1,093,783
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.42% 53,499 0% $1,014,341
CITADEL ADVISORS LLC 0.4% 50,822 0% $963,585
ROYAL BANK OF CANADA 0.38% 49,146 -3.5% 0% $932,000
Informed Momentum Co LLC 0.36% 45,837 +20% 0.1% $869,070
NORTHERN TRUST CORP 0.31% 39,724 -3.1% 0% $753,167

Institutional Holders of GEOSPACE TECHNOLOGIES CORP - Common Stock (GEOS) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 1,274 $21,544 -$15,659 $16.91 2
2025 Q3 7,049,684 $133,655,279 -$4,677,170 $18.96 68
2025 Q2 7,322,201 $104,420,941 -$9,753,455 $14.26 62
2025 Q1 8,114,980 $58,501,995 -$3,746,726 $7.21 61
2024 Q4 8,495,807 $85,137,711 -$2,044,279 $10.02 72
2024 Q3 8,436,396 $87,238,993 -$1,277,444 $10.34 73
2024 Q2 8,481,286 $76,158,655 -$215,540 $8.98 68
2024 Q1 8,159,726 $107,620,398 +$5,466,856 $13.19 67
2023 Q4 16,441 $213,075 +$213,075 $12.96 1
2023 Q3 5,855,947 $75,833,938 +$4,437,417 $12.95 43
2023 Q2 5,532,940 $42,990,259 +$1,235,669 $7.77 37
2023 Q1 5,378,546 $37,918,394 +$1,938,644 $7.05 36
2022 Q4 5,183,381 $21,872,890 -$1,299,911 $4.22 31
2022 Q3 6,411,626 $28,273,445 -$3,103,720 $4.41 26
2022 Q2 7,089,416 $33,603,479 -$2,991,724 $4.74 33
2022 Q1 7,651,101 $44,003,748 -$773,248 $5.75 38
2021 Q4 1,011 $8,000 -$45,942 $8.07 4
2021 Q3 8,036,121 $76,736,242 -$1,551,017 $9.55 41
2021 Q2 8,212,006 $66,431,052 +$3,945,950 $8.09 45
2021 Q1 7,713,999 $70,351,186 +$4,060,696 $9.12 46
2020 Q4 6,829,271 $58,463,113 -$2,178,000 $8.56 50
2020 Q3 7,247,376 $44,788,424 -$1,142,883 $6.18 63
2020 Q2 7,341,177 $55,240,009 -$7,651,727 $7.52 71
2020 Q1 8,283,822 $52,999,416 -$4,507,641 $6.40 66
2019 Q4 9,534,071 $159,834,850 +$5,075,643 $16.77 82
2019 Q3 9,170,136 $140,944,336 +$6,043,662 $15.37 75
2019 Q2 8,781,625 $132,642,031 +$8,389,749 $15.11 76
2019 Q1 8,396,844 $108,673,265 +$1,497,609 $12.94 84
2018 Q4 8,277,603 $85,330,609 -$2,699,835 $10.31 78
2018 Q3 8,558,685 $117,225,264 +$1,428,974 $13.70 84
2018 Q2 8,464,281 $119,019,450 -$16,364,795 $14.06 87
2018 Q1 9,911,468 $97,819,962 -$5,045,113 $9.87 75
2017 Q4 10,689,498 $138,657,122 -$2,498,669 $12.97 85
2017 Q3 10,311,945 $183,891,806 -$8,147,493 $17.82 85
2017 Q2 11,005,059 $152,199,472 -$4,278,403 $13.83 80
2017 Q1 10,582,792 $171,769,137 +$23,606,134 $16.23 85
2016 Q4 11,241,112 $228,887,997 -$5,441,143 $20.36 96
2016 Q3 11,453,953 $222,976,688 -$10,522,874 $19.48 90
2016 Q2 11,362,337 $186,011,241 -$10,126,557 $16.37 89
2016 Q1 12,038,115 $148,649,556 -$8,744,927 $12.34 86
2015 Q4 13,144,547 $184,934,911 -$1,740,791 $14.07 92
2015 Q3 13,138,096 $181,436,207 -$15,580,409 $13.81 102
2015 Q2 14,246,873 $328,392,940 +$8,861,959 $23.05 111
2015 Q1 13,817,756 $228,122,086 +$3,586,547 $16.51 110
2014 Q4 13,589,995 $360,126,462 -$17,121,559 $26.50 126
2014 Q3 13,094,465 $459,847,525 -$79,628,513 $35.15 129
2014 Q2 14,546,049 $801,183,223 -$13,077,585 $55.08 141
2014 Q1 14,645,630 $968,985,714 -$40,933,090 $66.17 150