Natural Gas Services Group, Inc.
US ˙ NYSE ˙ US63886Q1094

SecurityNGS / Natural Gas Services Group, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership891,342 shares
Ownership 7.20%
Dimensional Fund Advisors Lp ownership in NGS / Natural Gas Services Group, Inc.

2024-02-09 - Dimensional Fund Advisors Lp has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 891,342 shares of Natural Gas Services Group, Inc. (US:NGS). This represents 7.2 percent ownership of the company. In their previous filing dated 2023-02-10 , Dimensional Fund Advisors Lp had reported owning 925,630 shares, indicating a decrease of -3.70 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2024-02-09 2024-02-09 13G/A 925,630 891,342 -3.70 7.20 -4.00
2023-02-10 2023-02-10 13G/A 943,255 925,630 -1.87 7.50 4.17
2022-02-08 2022-02-08 13G/A 1,022,687 943,255 -7.77 7.20 -5.26
2021-02-12 2021-02-12 13G/A 1,102,945 1,022,687 -7.28 7.60 -7.20
2020-02-12 2020-02-12 13G/A 1,097,734 1,102,945 0.47 8.19 -2.15
2019-02-08 2019-02-08 13G/A 1,087,793 1,097,734 0.91 8.37 -0.48
2018-02-09 2018-02-09 13G/A 1,092,461 1,087,793 -0.43 8.41 -0.94
2017-02-09 2017-02-09 13G/A 996,460 1,092,461 9.63 8.49 8.57
2016-02-09 2016-02-09 13G/A 996,460 7.82
2015-02-05 2015-02-05 13G/A 915,246 7.31
2014-02-10 2014-02-10 13G/A 896,423 7.23
2013-02-11 2013-02-11 13G/A 846,053 6.86
2012-02-14 2012-02-14 13G/A 805,314 6.59

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

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)
2026-05-07 2026-03-31 13F NATURAL GAS SVCS GROUP COM 63886Q109 843,797 -11,848 -1.38 31,846 10.60 0.0014
2026-02-12 2025-12-31 13F NATURAL GAS SVCS GROUP COM 63886Q109 855,645 -1,752 -0.20 28,793 19.98 0.0060
2025-11-12 2025-09-30 13F NATURAL GAS SVCS GROUP COM 63886Q109 857,397 -1,238 -0.14 23,999 8.28 0.0051
2025-08-12 2025-06-30 13F NATURAL GAS SVCS GROUP COM 63886Q109 858,635 -19,156 -2.18 22,163 14.92 0.0051
2025-05-13 2025-03-31 13F NATURAL GAS SVCS GROUP COM 63886Q109 877,791 -24,376 -2.70 19,285 -20.24 0.0048
2025-02-13 2024-12-31 13F NATURAL GAS SVCS GROUP COM 63886Q109 902,167 -16,566 -1.80 24,178 37.71 0.0058
2024-11-07 2024-09-30 13F NATURAL GAS SVCS GROUP COM 63886Q109 918,733 -3,182 -0.35 17,557 -5.34 0.0043
2024-08-09 2024-06-30 13F NATURAL GAS SVCS GROUP COM 63886Q109 921,915 18,001 1.99 18,548 5.61 0.0048
2024-05-10 2024-03-31 13F NATURAL GAS SVCS GROUP COM 63886Q109 903,914 12,572 1.41 17,563 22.54 0.0048
2024-02-07 2023-12-31 13F NATURAL GAS SVCS GROUP COM 63886Q109 891,342 14,520 1.66 14,333 12.27 0.0042
2023-11-09 2023-09-30 13F NATURAL GAS SVCS GROUP COM 63886Q109 876,822 -36,759 -4.02 12,767 41.15 0.0042
2023-08-09 2023-06-30 13F NATURAL GAS SVCS GROUP COM 63886Q109 913,581 -34,091 -3.60 9,044 -7.43 0.0029
2023-05-12 2023-03-31 13F NATURAL GAS SVCS GROUP COM 63886Q109 947,672 22,042 2.38 9,770 97,600.00 0.0033
2023-02-09 2022-12-31 13F NATURAL GAS SVCS GROUP COM 63886Q109 925,630 8,077 0.88 11 -99.89 0.0031
2022-11-10 2022-09-30 13F NATURAL GAS SVCS GROUP COM 63886Q109 917,553 -15,483 -1.66 9,212 -10.24 0.0035
2022-08-12 2022-06-30 13F NATURAL GAS SVCS GROUP COM 63886Q109 933,036 4,263 0.46 10,263 -7.22 0.0037
2022-05-13 2022-03-31 13F NATURAL GAS SVCS GROUP COM 63886Q109 928,773 -14,482 -1.54 11,062 12.01 0.0034
2022-02-09 2021-12-31 13F NATURAL GAS SVCS GROUP COM 63886Q109 943,255 -24,498 -2.53 9,876 -1.68 0.0030
2021-11-12 2021-09-30 13F NATURAL GAS SVCS GROUP COM 63886Q109 967,753 -48,048 -4.73 10,045 -3.81 0.0032
2021-08-12 2021-06-30 13F NATURAL GAS SVCS GROUP COM 63886Q109 1,015,801 -20,334 -1.96 10,443 6.77 0.0033
2021-05-14 2021-03-31 13F NATURAL GAS SVCS GROUP COM 63886Q109 1,036,135 13,448 1.31 9,781 0.89 0.0032
2021-03-08 2020-12-31 13F/A-2 NATURAL GAS SERVICES GROUP COM 63886Q109 1,022,687 1,009 0.10 9,695 12.30 0.0035
2021-02-11 2020-12-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,022,687 1,009 9,695 3,501.3187
2020-11-12 2020-09-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,021,678 -22,432 -2.15 8,633 31.86 0.0037
2020-08-13 2020-06-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,044,110 -62,481 -5.65 6,547 32.64 0.0029
2020-05-14 2020-03-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,106,591 3,646 0.33 4,936 -63.50 0.0026
2020-02-14 2019-12-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,102,945 -9,491 -0.85 13,522 -5.11 0.0049
2019-11-12 2019-09-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,112,436 1,339 0.12 14,250 -22.27 0.0055
2019-08-13 2019-06-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,111,097 11,375 1.03 18,333 -3.69 0.0071
2019-08-12 2019-03-31 13F/A-2 NATURAL GAS SERVICES GROUP COM 63886Q109 1,099,722 1,988 0.18 19,036 5.49 0.0076
2019-05-10 2019-03-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,099,722 1,988 19,036
2019-02-26 2018-12-31 13F/A-1 NATURAL GAS SERVICES GROUP COM 63886Q109 1,097,734 -1,794 -0.16 18,046 -22.22 0.0082
2019-02-13 2018-12-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,097,734 -1,794 18,046
2018-11-13 2018-09-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,099,528 8,138 0.75 23,200 -9.92 0.0088
2018-08-10 2018-06-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,091,390 3,095 0.28 25,756 -0.77 0.0103
2018-05-11 2018-03-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,088,295 502 0.05 25,956 -8.93 0.0108
2018-02-12 2017-12-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,087,793 492 0.05 28,500 -7.71 0.0118
2017-11-13 2017-09-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,087,301 997 0.09 30,880 14.39 0.0135
2017-08-11 2017-06-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,086,304 -5,292 -0.48 26,995 -5.07 0.0125
2017-05-12 2017-03-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,091,596 -865 -0.08 28,436 -19.04 0.0136
2017-02-09 2016-12-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,092,461 2,220 0.20 35,123 31.01 0.0175
2016-11-10 2016-09-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,090,241 24,266 2.28 26,809 9.82 0.0145
2016-08-09 2016-06-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,065,975 38,244 3.72 24,411 9.81 0.0140
2016-05-13 2016-03-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 1,027,731 31,271 3.14 22,230 0.04 0.0133
2016-02-10 2015-12-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 996,460 37,504 3.91 22,221 20.06 0.0139
2015-11-13 2015-09-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 958,956 19,979 2.13 18,508 -13.62 0.0121
2015-08-14 2015-06-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 938,977 15,982 1.73 21,427 20.78 0.0131
2015-05-14 2015-03-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 922,995 7,749 0.85 17,740 -15.87 0.0112
2015-02-06 2014-12-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 915,246 -1,511 -0.16 21,087 -4.44 0.0138
2014-11-13 2014-09-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 916,757 12,336 1.36 22,067 -26.20 0.0156
2014-08-08 2014-06-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 904,421 10,634 1.19 29,900 11.00 0.0208
2014-05-14 2014-03-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 893,787 -2,636 -0.29 26,938 8.99 0.0201
2014-02-12 2013-12-31 13F NATURAL GAS SERVICES GROUP COM 63886Q109 896,423 12,416 1.40 24,715 4.24 0.0193
2013-11-13 2013-09-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 884,007 17,147 1.98 23,709 16.44 0.0205
2013-08-15 2013-06-30 13F NATURAL GAS SERVICES GROUP COM 63886Q109 866,860 866,860 20,362 0.0192
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.