Dawson Geophysical Company
US ˙ NasdaqGS ˙ US2393601008

SecurityDWSN / Dawson Geophysical Company
InstitutionPinnacle Associates Ltd
Latest Disclosed Ownership40,360 shares
Latest Disclosed Value $ 139,646
Pinnacle Associates Ltd reports 22.92% decrease in ownership of DWSN / Dawson Geophysical Company

On April 21, 2026 - Pinnacle Associates Ltd filed a 13F-HR form disclosing ownership of 40,360 shares of Dawson Geophysical Company (US:DWSN) valued at $139,646 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 52,360 shares of Dawson Geophysical Company. This represents a change in shares of -22.92% during the quarter. The current value of the position is $160,633 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-21 2026-03-31 13F DAWSON GEOPHYSICAL CO COM 239360100 40,360 -12,000 -22.92 140 71.60 0.0018
2026-02-05 2025-12-31 13F DAWSON GEOPHYSICAL CO COM 239360100 52,360 0 0.00 82 -11.96 0.0010
2025-11-13 2025-09-30 13F DAWSON GEOPHYSICAL CO COM 239360100 52,360 8,360 19.00 92 43.75 0.0012
2025-08-04 2025-06-30 13F DAWSON GEOPHYSICAL CO COM 239360100 44,000 -6,422 -12.74 64 3.23 0.0009
2025-05-06 2025-03-31 13F DAWSON GEOPHYSICAL CO COM 239360100 50,422 18,000 55.52 62 47.62 0.0009
2025-02-14 2024-12-31 13F DAWSON GEOPHYSICAL CO COM 239360100 32,422 0 0.00 42 -28.81 0.0006
2024-10-25 2024-09-30 13F DAWSON GEOPHYSICAL CO COM 239360100 32,422 0 0.00 59 -6.35 0.0010
2024-07-30 2024-06-30 13F DAWSON GEOPHYSICAL CO COM 239360100 32,422 0 0.00 63 36.96 0.0010
2024-04-26 2024-03-31 13F DAWSON GEOPHYSICAL CO COM 239360100 32,422 0 0.00 46 -22.03 0.0007
2024-01-19 2023-12-31 13F DAWSON GEOPHYSICAL CO COM 239360100 32,422 0 0.00 59 -22.37 0.0010
2023-10-24 2023-09-30 13F DAWSON GEOPHYSICAL CO COM 239360100 32,422 0 0.00 77 16.92 0.0014
2023-07-27 2023-06-30 13F DAWSON GEOPHYSICAL CO COM 239360100 32,422 0 0.00 66 25.00 0.0011
2023-05-05 2023-03-31 13F DAWSON GEOPHYSICAL CO COM 239360100 32,422 0 0.00 53 -17.46 0.0011
2023-02-01 2022-12-31 13F/A-1 DAWSON GEOPHYSICAL CO COM 239360100 32,422 0 0.00 64 21.15 0.0014
2023-01-25 2022-12-31 13F DAWSON GEOPHYSICAL CO COM 239360100 32,422 0 62 0.0000
2022-11-01 2022-09-30 13F DAWSON GEOPHYSICAL CO COM 239360100 32,422 10,000 44.60 52 73.33 0.0012
2022-08-02 2022-06-30 13F DAWSON GEOPHYSICAL CO COM 239360100 22,422 0 0.00 30 -42.31 0.0007
2022-05-05 2022-03-31 13F DAWSON GEOPHYSICAL CO COM 239360100 22,422 0 0.00 52 0.00 0.0009
2022-02-02 2021-12-31 13F DAWSON GEOPHYSICAL CO COM 239360100 22,422 0 0.00 52 -7.14 0.0009
2021-10-19 2021-09-30 13F DAWSON GEOPHYSICAL CO COM 239360100 22,422 0 0.00 56 -5.08 0.0010
2021-08-02 2021-06-30 13F DAWSON GEOPHYSICAL CO COM 239360100 22,422 0 0.00 59 7.27 0.0011
2021-05-12 2021-03-31 13F DAWSON GEOPHYSICAL CO COM 239360100 22,422 0 0.00 55 14.58 0.0010
2021-01-26 2020-12-31 13F DAWSON GEOPHYSICAL CO COM 239360100 22,422 0 0.00 48 23.08 0.0010
2020-10-23 2020-09-30 13F DAWSON GEOPHYSICAL CO COM 239360100 22,422 0 0.00 39 21.88 0.0009
2020-08-14 2020-06-30 13F DAWSON GEOPHYSICAL CO COM 239360100 22,422 -1,578 -6.58 32 39.13 0.0008
2020-05-13 2020-03-31 13F DAWSON GEOPHYSICAL CO COM 239360100 24,000 0 0.00 23 -60.34 0.0007
2020-02-03 2019-12-31 13F DAWSON GEOPHYSICAL CO COM 239360100 24,000 -10,080 -29.58 58 -20.55 0.0013
2019-11-08 2019-09-30 13F DAWSON GEOPHYSICAL CO COM 239360100 34,080 0 0.00 73 -14.12 0.0017
2019-08-05 2019-06-30 13F DAWSON GEOPHYSICAL CO COM 239360100 34,080 24,000 238.10 85 183.33 0.0020
2019-05-10 2019-03-31 13F DAWSON GEOPHYSICAL CO COM 239360100 10,080 0 0.00 30 -11.76 0.0007
2019-02-05 2018-12-31 13F DAWSON GEOPHYSICAL CO COM 239360100 10,080 0 0.00 34 -45.16 0.0009
2018-11-09 2018-09-30 13F DAWSON GEOPHYSICAL CO COM 239360100 10,080 0 0.00 62 -22.50 0.0013
2018-08-08 2018-06-30 13F DAWSON GEOPHYSICAL CO COM 239360100 10,080 10,080 80 0.0016
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.