Oil States International, Inc.
US ˙ NYSE ˙ US6780261052

SecurityOIS / Oil States International, Inc.
InstitutionDimensional Fund Advisors Lp
Latest Disclosed Ownership3,198,279 shares
Ownership 5.10%
Dimensional Fund Advisors Lp ownership in OIS / Oil States International, Inc.

2025-04-15 - Dimensional Fund Advisors Lp has filed an SCHEDULE 13G form with the Securities and Exchange Commission (SEC) disclosing ownership of 3,198,279 shares of Oil States International, Inc. (US:OIS). This represents 5.1 percent ownership of the company. In their previous filing dated 2024-10-31 , Dimensional Fund Advisors Lp had reported owning 2,976,023 shares, indicating an increase of 7.47 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)
2025-04-15 2025-04-15 13G 2,976,023 3,198,279 7.47 5.10 8.51
2024-10-31 2024-10-31 13G/A 4,227,323 2,976,023 -29.60 4.70 -28.79
2024-02-09 2024-02-09 13G 2,588,831 4,227,323 63.29 6.60 57.14
2021-02-12 2021-02-12 13G/A 4,929,049 2,588,831 -47.48 4.20 -48.47
2020-02-12 2020-02-12 13G/A 5,045,932 4,929,049 -2.32 8.15 -3.09
2019-02-08 2019-02-08 13G/A 4,306,282 5,045,932 17.18 8.41 -0.24
2018-02-09 2018-02-09 13G/A 4,192,487 4,306,282 2.71 8.43 3.31
2017-02-09 2017-02-09 13G 4,192,487 8.16

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 OIL STS INTL COM 678026105 3,522,143 89,456 2.61 40,998 76.41 0.0018
2026-02-12 2025-12-31 13F OIL STS INTL COM 678026105 3,432,687 -130,413 -3.66 23,240 7.62 0.0049
2025-11-12 2025-09-30 13F OIL STS INTL COM 678026105 3,563,100 85,774 2.47 21,593 15.85 0.0046
2025-08-12 2025-06-30 13F OIL STS INTL COM 678026105 3,477,326 279,047 8.72 18,639 13.16 0.0043
2025-05-13 2025-03-31 13F OIL STS INTL COM 678026105 3,198,279 299,444 10.33 16,471 12.30 0.0041
2025-02-13 2024-12-31 13F OIL STS INTL COM 678026105 2,898,835 -77,188 -2.59 14,667 7.14 0.0035
2024-11-07 2024-09-30 13F OIL STS INTL COM 678026105 2,976,023 -239,111 -7.44 13,690 -4.10 0.0033
2024-08-09 2024-06-30 13F OIL STS INTL COM 678026105 3,215,134 -551,206 -14.64 14,275 -38.47 0.0037
2024-05-10 2024-03-31 13F OIL STS INTL COM 678026105 3,766,340 -460,983 -10.90 23,201 -19.18 0.0063
2024-02-07 2023-12-31 13F OIL STS INTL COM 678026105 4,227,323 269,030 6.80 28,704 -13.36 0.0084
2023-11-09 2023-09-30 13F OIL STS INTL COM 678026105 3,958,293 381,995 10.68 33,132 24.02 0.0109
2023-08-09 2023-06-30 13F OIL STS INTL COM 678026105 3,576,298 207,541 6.16 26,715 -4.79 0.0085
2023-05-12 2023-03-31 13F OIL STS INTL COM 678026105 3,368,757 737,494 28.03 28,061 147,584.21 0.0095
2023-02-09 2022-12-31 13F OIL STS INTL COM 678026105 2,631,263 -91,533 -3.36 20 -99.82 0.0058
2022-11-10 2022-09-30 13F OIL STS INTL COM 678026105 2,722,796 -150,467 -5.24 10,593 -31.98 0.0041
2022-08-12 2022-06-30 13F OIL STS INTL COM 678026105 2,873,263 371,042 14.83 15,573 -10.45 0.0056
2022-05-13 2022-03-31 13F OIL STS INTL COM 678026105 2,502,221 182,950 7.89 17,391 50.87 0.0054
2022-02-09 2021-12-31 13F OIL STS INTL COM 678026105 2,319,271 -18,887 -0.81 11,527 -22.85 0.0035
2021-11-12 2021-09-30 13F OIL STS INTL COM 678026105 2,338,158 -366,932 -13.56 14,941 -29.64 0.0048
2021-08-12 2021-06-30 13F OIL STS INTL COM 678026105 2,705,090 92,181 3.53 21,234 34.77 0.0067
2021-05-14 2021-03-31 13F OIL STS INTL COM 678026105 2,612,909 24,078 0.93 15,756 21.24 0.0052
2021-03-08 2020-12-31 13F/A-2 OIL STS INTL COM 678026105 2,588,831 -243,042 -8.58 12,996 68.10 0.0047
2021-02-11 2020-12-31 13F OIL STS INTL COM 678026105 2,588,831 -243,042 12,996 4,693.4644
2020-11-12 2020-09-30 13F OIL STS INTL COM 678026105 2,831,873 -525,682 -15.66 7,731 -51.52 0.0033
2020-08-13 2020-06-30 13F OIL STS INTL COM 678026105 3,357,555 -1,563,559 -31.77 15,948 59.64 0.0070
2020-05-14 2020-03-31 13F OIL STS INTL COM 678026105 4,921,114 -7,935 -0.16 9,990 -87.57 0.0052
2020-02-14 2019-12-31 13F OIL STS INTL COM 678026105 4,929,049 -155,261 -3.05 80,394 18.89 0.0293
2019-11-12 2019-09-30 13F OIL STS INTL COM 678026105 5,084,310 -332 -0.01 67,620 -27.33 0.0263
2019-08-13 2019-06-30 13F OIL STS INTL COM 678026105 5,084,642 111,864 2.25 93,048 10.33 0.0361
2019-08-12 2019-03-31 13F/A-2 OIL STS INTL COM 678026105 4,972,778 -73,154 -1.45 84,337 17.04 0.0336
2019-05-10 2019-03-31 13F OIL STS INTL COM 678026105 4,972,778 -73,154 84,337
2019-02-26 2018-12-31 13F/A-1 OIL STS INTL COM 678026105 5,045,932 5,679 0.11 72,057 -56.94 0.0326
2019-02-13 2018-12-31 13F OIL STS INTL COM 678026105 5,045,932 5,679 72,057
2018-11-13 2018-09-30 13F OIL STS INTL COM 678026105 5,040,253 10,970 0.22 167,336 3.65 0.0637
2018-08-10 2018-06-30 13F OIL STS INTL COM 678026105 5,029,283 283,704 5.98 161,440 29.84 0.0644
2018-05-11 2018-03-31 13F OIL STS INTL COM 678026105 4,745,579 439,297 10.20 124,334 2.02 0.0518
2018-02-12 2017-12-31 13F OIL STS INTL COM 678026105 4,306,282 160,530 3.87 121,868 15.96 0.0505
2017-11-13 2017-09-30 13F OIL STS INTL COM 678026105 4,145,752 -196,407 -4.52 105,095 -10.85 0.0459
2017-08-11 2017-06-30 13F OIL STS INTL COM 678026105 4,342,159 3,830 0.09 117,889 -18.03 0.0544
2017-05-12 2017-03-31 13F OIL STS INTL COM 678026105 4,338,329 145,842 3.48 143,814 -12.04 0.0687
2017-02-09 2016-12-31 13F OIL STS INTL COM 678026105 4,192,487 208,486 5.23 163,507 30.01 0.0817
2016-11-10 2016-09-30 13F OIL STS INTL COM 678026105 3,984,001 525,861 15.21 125,769 10.61 0.0680
2016-08-09 2016-06-30 13F OIL STS INTL COM 678026105 3,458,140 1,083,140 45.61 113,700 51.89 0.0654
2016-05-13 2016-03-31 13F OIL STS INTL COM 678026105 2,375,000 1,056,327 80.11 74,856 108.32 0.0448
2016-02-10 2015-12-31 13F OIL STS INTL COM 678026105 1,318,673 124,194 10.40 35,934 15.11 0.0224
2015-11-13 2015-09-30 13F OIL STS INTL COM 678026105 1,194,479 93,231 8.47 31,217 -23.86 0.0205
2015-08-14 2015-06-30 13F OIL STS INTL COM 678026105 1,101,248 301,933 37.77 40,999 28.98 0.0251
2015-05-14 2015-03-31 13F OIL STS INTL COM 678026105 799,315 116,845 17.12 31,787 -4.75 0.0201
2015-02-06 2014-12-31 13F OIL STS INTL COM 678026105 682,470 188,901 38.27 33,373 9.22 0.0219
2014-11-13 2014-09-30 13F OIL STS INTL COM 678026105 493,569 70,816 16.75 30,555 12.80 0.0216
2014-08-08 2014-06-30 13F OIL STS INTL COM 678026105 422,753 21,849 5.45 27,087 -31.45 0.0188
2014-05-14 2014-03-31 13F OIL STS INTL COM 678026105 400,904 142,100 54.91 39,516 50.13 0.0295
2014-02-12 2013-12-31 13F OIL STS INTL COM 678026105 258,804 23,927 10.19 26,322 8.32 0.0205
2013-11-13 2013-09-30 13F OIL STS INTL COM 678026105 234,877 -920 -0.39 24,301 11.24 0.0210
2013-08-15 2013-06-30 13F OIL STS INTL COM 678026105 235,797 235,797 21,845 0.0206
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.