Geospace Technologies (GEOS)
Geospace Technologies on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as measuring & controlling devices, nec.
400K
Short interest
settlement 2026-09-30
4.6
Days to cover
-3.3 days vs prior
66.6%
Short share of volume
2026-10-23
870
Fails to deliver
settlement 2026-09-30
Thu 19 Nov
Next earnings
estimated date
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-10-23.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 30 September 2026, short interest in GEOS is 400,131 shares, down 43,841 shares over the last month. Over the last 48 readings it ranged from 362,420 shares (31 January 2025) to 916,968 shares (13 March 2026). The latest reading sits at the bottom of that range. At the reported average volume of 87K shares a day that is 4.6 days to cover.
Embed this chart.The embed keeps its attribution line.
<iframe src="https://xoomar.com/embed/stocks/geos" width="100%" height="440" style="border:0;max-width:100%" loading="lazy" title="XOOMAR chart"></iframe>
| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 400,131 | -7.0% | 87,349 | 4.58 |
| 2026-09-15 | 430,092 | -3.1% | 54,708 | 7.86 |
| 2026-08-31 | 443,972 | +2.9% | 106,880 | 4.15 |
| 2026-08-14 | 431,604 | -14.8% | 217,397 | 1.99 |
| 2026-07-31 | 506,461 | +8.0% | 82,112 | 6.17 |
| 2026-07-15 | 468,923 | +4.7% | 109,843 | 4.27 |
| 2026-06-30 | 447,785 | -9.3% | 170,882 | 2.62 |
| 2026-06-15 | 493,461 | -21.2% | 156,781 | 3.15 |
| 2026-05-29 | 625,949 | -8.9% | 164,602 | 3.80 |
| 2026-05-15 | 687,004 | -9.6% | 330,743 | 2.08 |
| 2026-04-30 | 759,586 | -14.8% | 163,892 | 4.63 |
| 2026-04-15 | 891,103 | +5.4% | 236,392 | 3.77 |
| 2026-03-31 | 845,424 | -7.8% | 190,488 | 4.44 |
| 2026-03-13 | 916,968 | +10.3% | 208,718 | 4.39 |
| 2026-02-27 | 831,716 | +2.4% | 182,427 | 4.56 |
| 2026-02-13 | 812,550 | +14.6% | 419,717 | 1.94 |
| 2026-01-30 | 709,093 | -16.0% | 225,976 | 3.14 |
| 2026-01-15 | 844,329 | +10.6% | 222,249 | 3.80 |
| 2025-12-31 | 763,360 | +1.3% | 159,040 | 4.80 |
| 2025-12-15 | 753,256 | +8.1% | 246,547 | 3.06 |
| 2025-11-28 | 696,941 | -15.5% | 400,043 | 1.74 |
| 2025-11-14 | 824,978 | +2.3% | 171,020 | 4.82 |
| 2025-10-31 | 806,430 | +8.8% | 318,074 | 2.54 |
| 2025-10-15 | 740,909 | +0.1% | 195,558 | 3.79 |
| 2025-09-30 | 740,348 | +8.9% | 165,448 | 4.47 |
| 2025-09-15 | 679,977 | -7.6% | 153,316 | 4.44 |
| 2025-08-29 | 735,614 | +20.9% | 222,902 | 3.30 |
| 2025-08-15 | 608,318 | +1.2% | 204,691 | 2.97 |
| 2025-07-31 | 601,087 | +53.9% | 235,711 | 2.55 |
| 2025-07-15 | 390,496 | -20.7% | 147,284 | 2.65 |
| 2025-06-30 | 492,696 | +18.6% | 879,054 | 1.00 |
| 2025-06-13 | 415,341 | +5.5% | 54,142 | 7.67 |
| 2025-05-30 | 393,755 | +5.8% | 43,317 | 9.09 |
| 2025-05-15 | 372,115 | -3.0% | 56,905 | 6.54 |
| 2025-04-30 | 383,783 | +4.4% | 53,748 | 7.14 |
| 2025-04-15 | 367,452 | -6.4% | 62,036 | 5.92 |
| 2025-03-31 | 392,761 | -4.9% | 53,182 | 7.39 |
| 2025-03-14 | 412,818 | +1.3% | 69,477 | 5.94 |
| 2025-02-28 | 407,592 | -0.4% | 72,142 | 5.65 |
| 2025-02-14 | 409,233 | +12.9% | 90,069 | 4.54 |
| 2025-01-31 | 362,420 | -5.7% | 42,641 | 8.50 |
| 2025-01-15 | 384,127 | -3.8% | 41,844 | 9.18 |
| 2024-12-31 | 399,481 | +5.2% | 46,596 | 8.57 |
| 2024-12-13 | 379,865 | +1.1% | 42,586 | 8.92 |
| 2024-11-29 | 375,794 | -16.9% | 66,919 | 5.62 |
| 2024-11-15 | 452,373 | -3.1% | 39,867 | 11.35 |
| 2024-10-31 | 466,927 | +3.1% | 27,922 | 16.72 |
| 2024-10-15 | 452,889 | -11.4% | 29,834 | 15.18 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of GEOS volume is 66.6%, up 32.7 points over the last five sessions. Over the last 30 readings it ranged from 16.7% (21 October 2026) to 66.6% (23 October 2026). The latest reading sits at the top of that range. The latest reading is 30.2 points above the 30-session average of 36.4%, on 38K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 25K | 38K | 66.6% | 0 |
| 2026-10-22 | 27K | 70K | 38.5% | 0 |
| 2026-10-21 | 4K | 22K | 16.7% | 0 |
| 2026-10-20 | 18K | 42K | 43.9% | 0 |
| 2026-10-19 | 21K | 56K | 37.7% | 0 |
| 2026-10-16 | 19K | 57K | 34.0% | 12 |
| 2026-10-15 | 26K | 73K | 35.1% | 75 |
| 2026-10-14 | 13K | 38K | 34.6% | 0 |
| 2026-10-13 | 26K | 62K | 42.3% | 0 |
| 2026-10-12 | 14K | 32K | 44.1% | 0 |
| 2026-10-09 | 11K | 23K | 46.2% | 158 |
| 2026-10-08 | 11K | 38K | 28.0% | 346 |
| 2026-10-07 | 5K | 27K | 18.6% | 0 |
| 2026-10-06 | 14K | 31K | 45.5% | 0 |
| 2026-10-05 | 28K | 59K | 47.5% | 10 |
| 2026-10-02 | 8K | 16K | 52.4% | 0 |
| 2026-10-01 | 8K | 35K | 24.1% | 100 |
| 2026-09-30 | 5K | 23K | 23.8% | 0 |
| 2026-09-29 | 8K | 23K | 33.5% | 0 |
| 2026-09-28 | 10K | 38K | 25.9% | 0 |
| 2026-09-25 | 7K | 20K | 33.4% | 100 |
| 2026-09-24 | 12K | 30K | 40.2% | 0 |
| 2026-09-23 | 24K | 47K | 51.3% | 0 |
| 2026-09-22 | 26K | 56K | 45.7% | 1,790 |
| 2026-09-21 | 13K | 48K | 27.6% | 0 |
| 2026-09-18 | 6K | 16K | 36.7% | 200 |
| 2026-09-17 | 14K | 67K | 20.9% | 0 |
| 2026-09-16 | 8K | 28K | 29.2% | 0 |
| 2026-09-15 | 8K | 19K | 41.9% | 0 |
| 2026-09-14 | 12K | 47K | 26.2% | 74 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 30 September 2026, the fails-to-deliver balance in GEOS is 870 shares, up 609 shares over the last settlement date. Over the last 30 readings it ranged from 22 shares (21 September 2026) to 7,274 shares (3 August 2026).
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-30 | 870 | $4.85 | $4K |
| 2026-09-24 | 261 | $5.14 | $1K |
| 2026-09-21 | 22 | $5.10 | $112 |
| 2026-09-15 | 765 | $5.07 | $4K |
| 2026-09-09 | 1,140 | $5.31 | $6K |
| 2026-09-08 | 819 | $5.38 | $4K |
| 2026-09-04 | 1,303 | $5.16 | $7K |
| 2026-09-02 | 6,280 | $5.19 | $33K |
| 2026-09-01 | 4,676 | $5.27 | $25K |
| 2026-08-31 | 3,641 | $5.28 | $19K |
| 2026-08-26 | 44 | $5.59 | $246 |
| 2026-08-24 | 4,152 | $5.51 | $23K |
| 2026-08-21 | 4,423 | $5.37 | $24K |
| 2026-08-20 | 3,826 | $5.53 | $21K |
| 2026-08-19 | 4,374 | $5.95 | $26K |
| 2026-08-18 | 929 | $5.77 | $5K |
| 2026-08-11 | 1,728 | $5.63 | $10K |
| 2026-08-04 | 6,189 | $7.52 | $47K |
| 2026-08-03 | 7,274 | $7.31 | $53K |
| 2026-07-31 | 5,556 | $7.20 | $40K |
| 2026-07-30 | 207 | $6.49 | $1K |
| 2026-07-24 | 2,298 | $7.12 | $16K |
| 2026-07-23 | 353 | $7.10 | $3K |
| 2026-07-17 | 2,164 | $6.78 | $15K |
| 2026-07-15 | 654 | $7.29 | $5K |
| 2026-07-14 | 1,841 | $7.19 | $13K |
| 2026-07-13 | 83 | $7.47 | $620 |
| 2026-07-10 | 1,518 | $7.19 | $11K |
| 2026-06-29 | 26 | $6.38 | $166 |
| 2026-06-17 | 428 | $7.18 | $3K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for GEOS in the last 90 days. The most recent filings are listed below. Latest filing: Miles Richard F (Director) on 2026-02-09.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-02-09 | Miles Richard F | Director | Grant | 4K | $0.00 | $0 | 48K |
| 2026-02-09 | Giesinger Edgar R. JR. | Director | Grant | 4K | $0.00 | $0 | 43K |
| 2026-02-09 | DAVIS THOMAS L | Director | Grant | 4K | $0.00 | $0 | 65K |
| 2025-12-05 | Kelley Richard James | President & CEO | Tax withholding | 275 | $0.00 | $0 | 42K |
| 2025-12-05 | Curda Robert L. | Vice President & CFO | Tax withholding | 165 | $0.00 | $0 | 61K |
| 2025-12-02 | Bushey Ronald Todd | Chief Technical Officer | Tax withholding | 275 | $0.00 | $0 | 12K |
| 2025-11-25 | Bushey Ronald Todd | Chief Technical Officer | Grant | 4K | $0.00 | $0 | 12K |
| 2025-11-25 | Kelley Richard James | President & CEO | Grant | 8K | $0.00 | $0 | 42K |
| 2025-11-25 | Bushey Ronald Todd | Chief Technical Officer | Grant | 4K | $0.00 | $0 | 7K |
| 2025-11-25 | Curda Robert L. | Vice President & CFO | Grant | 4K | $0.00 | $0 | 61K |
| 2025-11-20 | Bushey Ronald Todd | Chief Technical Officer | Grant | 4K | $0.00 | $0 | 9K |
| 2025-11-20 | Bushey Ronald Todd | Chief Technical Officer | Tax withholding | 198 | $0.00 | $0 | 8K |
| 2025-11-20 | Kelley Richard James | President & CEO | Tax withholding | 298 | $0.00 | $0 | 34K |
| 2025-11-20 | Kelley Richard James | President & CEO | Grant | 5K | $0.00 | $0 | 35K |
| 2025-11-20 | Curda Robert L. | Vice President & CFO | Tax withholding | 198 | $0.00 | $0 | 57K |
| 2025-11-20 | Curda Robert L. | Vice President & CFO | Grant | 4K | $0.00 | $0 | 57K |
| 2025-11-20 | Bushey Ronald Todd | Chief Technical Officer | Tax withholding | 198 | $0.00 | $0 | 3K |
| 2025-11-20 | Bushey Ronald Todd | Chief Technical Officer | Grant | 4K | $0.00 | $0 | 4K |
| 2025-02-09 | Wheeler Walter R. | Director | Grant | 4K | $0.00 | $0 | 172K |
| 2025-02-09 | JUMPER STEPHEN C | Director | Grant | 4K | $0.00 | $0 | 15K |
| 2025-02-09 | Ashworth Margaret | Director | Grant | 4K | $0.00 | $0 | 34K |
| 2025-02-06 | Wheeler Walter R. | Director | Grant | 7K | $0.00 | $0 | 169K |
| 2025-02-06 | Miles Richard F | Director | Grant | 7K | $0.00 | $0 | 45K |
| 2025-02-06 | DAVIS THOMAS L | Director | Grant | 7K | $0.00 | $0 | 62K |
| 2025-02-06 | Giesinger Edgar R. JR. | Director | Grant | 7K | $0.00 | $0 | 40K |
| 2025-02-06 | Ashworth Margaret | Director | Grant | 7K | $0.00 | $0 | 31K |
| 2025-02-06 | JUMPER STEPHEN C | Director | Grant | 7K | $0.00 | $0 | 11K |
| 2024-11-21 | Curda Robert L. | Vice President & CFO | Grant | 3K | $0.00 | $0 | 54K |
| 2024-11-21 | Adams Robbin B. | SVP & Chief Technical Officer | Grant | 2K | $0.00 | $0 | 75K |
| 2024-11-21 | Kelley Richard James | President & CEO | Grant | 5K | $0.00 | $0 | 30K |
| 2024-10-01 | Kelley Richard James | President & CEO | Grant | 5K | $0.00 | $0 | 25K |
| 2024-02-22 | Adams Robbin B. | SVP & Chief Technical Officer | Sell | 923 | $12.28 | $11K | 74K |
| 2024-02-22 | Adams Robbin B. | SVP & Chief Technical Officer | Sell | 100 | $12.27 | $1K | 74K |
| 2024-02-22 | Adams Robbin B. | SVP & Chief Technical Officer | Sell | 227 | $12.26 | $3K | 73K |
| 2024-02-22 | Miles Richard F | Director | Sell | 5K | $12.04 | $59K | 37K |
| 2024-02-20 | Adams Robbin B. | SVP & Chief Technical Officer | Sell | 912 | $12.32 | $11K | 81K |
| 2024-02-20 | Adams Robbin B. | SVP & Chief Technical Officer | Sell | 912 | $12.32 | $11K | 75K |
| 2024-02-14 | Adams Robbin B. | SVP & Chief Technical Officer | Sell | 2K | $12.29 | $26K | 80K |
| 2024-02-14 | Adams Robbin B. | SVP & Chief Technical Officer | Sell | 2K | $12.29 | $26K | 76K |
| 2024-02-07 | DAVIS THOMAS L | Director | Grant | 4K | $0.00 | $0 | 55K |
| 2024-02-07 | Miles Richard F | Director | Grant | 4K | $0.00 | $0 | 42K |
| 2024-02-07 | Giesinger Edgar R. JR. | Director | Grant | 4K | $0.00 | $0 | 32K |
| 2024-02-07 | Ashworth Margaret | Director | Grant | 4K | $0.00 | $0 | 24K |
| 2024-02-07 | JUMPER STEPHEN C | Director | Grant | 4K | $0.00 | $0 | 4K |
| 2024-02-07 | OWENS GARY D | Director | Grant | 4K | $0.00 | $0 | 253K |
| 2023-11-16 | Adams Robbin B. | Executive Vice President | Grant | 18K | $0.00 | $0 | 78K |
| 2023-11-16 | Curda Robert L. | Chief Financial Officer | Grant | 18K | $0.00 | $0 | 51K |
| 2023-11-16 | Wheeler Walter R. | President & CEO | Grant | 19K | $0.00 | $0 | 161K |
| 2023-02-22 | OWENS GARY D | Director | Buy | 27K | $5.50 | $149K | 337K |
| 2023-02-21 | OWENS GARY D | Director | Buy | 13K | $5.48 | $70K | 310K |
| 2023-02-17 | OWENS GARY D | Director | Buy | 10K | $5.50 | $55K | 297K |
| 2023-02-09 | Ashworth Margaret | Director | Grant | 9K | $0.00 | $0 | 20K |
| 2023-02-09 | Giesinger Edgar R. JR. | Director | Grant | 9K | $0.00 | $0 | 28K |
| 2023-02-09 | Langtry Tina M | Director | Grant | 9K | $0.00 | $0 | 32K |
| 2023-02-09 | Miles Richard F | Director | Grant | 9K | $0.00 | $0 | 38K |
| 2023-02-09 | OWENS GARY D | Director | Grant | 9K | $5.00 | $45K | 249K |
| 2023-02-09 | DAVIS THOMAS L | Director | Grant | 9K | $0.00 | $0 | 51K |
| 2023-02-09 | OWENS GARY D | Director | Grant | 9K | $0.00 | $0 | 249K |
| 2022-11-21 | Adams Robbin B. | Executive Vice President | Grant | 4K | $0.00 | $0 | 60K |
| 2022-11-21 | Curda Robert L. | Chief Financial Officer | Grant | 4K | $0.00 | $0 | 33K |
| 2022-11-21 | SHEEN MICHAEL J | SVP & Chief Technical Officer | Grant | 2K | $0.00 | $0 | 86K |
| 2022-11-21 | Wheeler Walter R. | President & CEO | Grant | 4K | $0.00 | $0 | 142K |
| 2022-09-02 | OWENS GARY D | Director | Buy | 7K | $5.00 | $35K | 287K |
| 2022-09-01 | OWENS GARY D | Director | Buy | 12K | $4.87 | $56K | 280K |
| 2022-08-31 | OWENS GARY D | Director | Buy | 14K | $4.89 | $66K | 268K |
| 2022-08-30 | OWENS GARY D | Director | Buy | 5K | $4.93 | $23K | 255K |
| 2022-08-22 | OWENS GARY D | Director | Buy | 700 | $4.97 | $3K | 250K |
| 2022-08-19 | OWENS GARY D | Director | Buy | 300 | $4.99 | $1K | 249K |
| 2022-08-17 | OWENS GARY D | Director | Buy | 19K | $4.94 | $96K | 249K |
| 2022-08-16 | OWENS GARY D | Director | Buy | 22K | $4.79 | $104K | 230K |
| 2022-08-15 | OWENS GARY D | Director | Buy | 8K | $4.76 | $39K | 208K |
| 2022-05-17 | OWENS GARY D | Director | Buy | 25K | $5.41 | $135K | 200K |
| 2022-05-17 | OWENS GARY D | Director | Buy | 50K | $5.30 | $265K | 175K |
| 2022-02-24 | OWENS GARY D | Director | Buy | 15K | $5.42 | $82K | 125K |
| 2022-02-23 | OWENS GARY D | Director | Buy | 21K | $5.41 | $112K | 110K |
| 2022-02-22 | OWENS GARY D | Director | Buy | 14K | $5.47 | $76K | 89K |
| 2022-02-17 | Wheeler Walter R. | President & CEO | Buy | 2K | $5.00 | $10K | 138K |
| 2022-02-02 | Asbury Kenneth | Director | Grant | 6K | $0.00 | $0 | 14K |
| 2022-02-02 | Ashworth Margaret | Director | Grant | 6K | $0.00 | $0 | 11K |
| 2022-02-02 | Giesinger Edgar R. JR. | Director | Grant | 6K | $0.00 | $0 | 19K |
| 2022-02-02 | Langtry Tina M | Director | Grant | 6K | $0.00 | $0 | 23K |
| 2022-02-02 | Miles Richard F | Director | Grant | 6K | $0.00 | $0 | 29K |
| 2022-02-02 | OWENS GARY D | Director | Grant | 6K | $0.00 | $0 | 240K |
| 2022-02-02 | DAVIS THOMAS L | Director | Grant | 6K | $0.00 | $0 | 42K |
| 2021-11-18 | Wheeler Walter R. | President & CEO | Grant | 9K | $0.00 | $0 | 136K |
| 2021-11-18 | Adams Robbin B. | Executive Vice President | Grant | 9K | $0.00 | $0 | 56K |
| 2021-11-18 | Curda Robert L. | Chief Financial Officer | Grant | 9K | $0.00 | $0 | 29K |
| 2021-11-18 | SHEEN MICHAEL J | SVP & Chief Technical Officer | Grant | 8K | $0.00 | $0 | 84K |
| 2021-08-12 | Adams Robbin B. | Executive Vice President | Sell | 3K | $10.50 | $26K | 48K |
| 2021-02-04 | Asbury Kenneth | Director | Grant | 5K | $0.00 | $0 | 8K |
| 2021-02-04 | Ashworth Margaret | Director | Grant | 5K | $0.00 | $0 | 5K |
| 2021-02-04 | Giesinger Edgar R. JR. | Director | Grant | 5K | $0.00 | $0 | 14K |
| 2021-02-04 | Langtry Tina M | Director | Grant | 5K | $0.00 | $0 | 17K |
| 2021-02-04 | Miles Richard F | Director | Grant | 5K | $0.00 | $0 | 24K |
| 2021-02-04 | OWENS GARY D | Director | Grant | 5K | $0.00 | $0 | 234K |
| 2021-02-04 | DAVIS THOMAS L | Director | Grant | 5K | $0.00 | $0 | 36K |
| 2020-12-10 | Asbury Kenneth | Director | Grant | 3K | $8.41 | $25K | 3K |
| 2020-12-09 | Adams Robbin B. | Executive Vice President | Sell | 4K | $8.28 | $29K | 45K |
| 2020-12-01 | OWENS GARY D | Director | Grant | 196 | $6.42 | $1K | 75K |
| 2020-11-30 | OWENS GARY D | Director | Grant | 28K | $6.45 | $180K | 75K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of GEOS in its latest filing, on Schedule 13G (passive). The holder is GRACE & WHITE INC /NY at 6.1% of the class (793,498 shares), filed 2026-10-07 for an event on 2026-09-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-10-07 | 13G | GRACE & WHITE INC /NYinvestment adviser | 793K | 6.1% | 2026-09-30 |
| 2026-08-14 | 13G/Ano. 11 | DISCIPLINED GROWTH INVESTORS INC /MNinvestment adviser | 0 | 0.0% | 2026-06-30 |
| 2026-07-31 | 13G/Ano. 1 | Vanguard Capital Managementinvestment adviser | 597K | 4.6% | 2026-06-30 |
| 2026-03-26 | 13G/Ano. 1 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
| 2025-10-09 | 13G/Ano. 1 | Dimensional Fund Advisors LPinvestment adviser | 628K | 4.9% | 2025-09-30 |
13F holders
Tracked managers holding GEOS at their latest 13F. JSON3 of the 30 tracked managers held GEOS at their latest 13F, $1.2M in total at quarter-end prices. Two Sigma Investments is the largest at $556K (0.0% of its portfolio) as of 2026-06-30. Over the prior quarter 3 added shares and 0 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Two Sigma Investments | 2026-06-30 | 82K | $556K | 0.00% | +8K |
| Citadel Advisors | 2026-06-30 | 58K | $393K | 0.00% | +25K |
| Renaissance Technologies | 2026-06-30 | 44K | $300K | 0.00% | new |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
Geospace Technologies in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Geospace Technologies (GEOS), SEC CIK 1001115, listed on Nasdaq, classified by the SEC as measuring & controlling devices, nec. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-30.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-10-07.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-07.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-02-09.JSON and CSV
- Company record
- EDGAR filing index for CIK 1001115Ticker, name and exchange from the SEC's company list, refreshed weekly.
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How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
Other companies the SEC classifies as measuring & controlling devices, nec
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Frequently Asked Questions
How much of GEOS is sold short?
What is GEOS's daily short volume?
Does GEOS have fails to deliver?
Are GEOS insiders buying or selling?
Who owns 5% or more of GEOS?
Which tracked 13F managers own GEOS?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.