ONEOK, Inc.
US ˙ NYSE ˙ US6826801036

SecurityOKE / ONEOK, Inc.
InstitutionPenbrook Management LLC
Latest Disclosed Ownership11,310 shares
Latest Disclosed Value $ 1,022,310
Penbrook Management LLC ownership in OKE / ONEOK, Inc.

On April 21, 2026 - Penbrook Management LLC filed a 13F-HR form disclosing ownership of 11,310 shares of ONEOK, Inc. (US:OKE) valued at $1,022,311 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 6, 2026 disclosing 11,310 shares of ONEOK, Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $1,006,024 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 ONEOK INC NEW COM Stock 682680103 11,310 0 0.00 1,022 22.98 0.7741
2026-01-06 2025-12-31 13F ONEOK INC NEW COM Stock 682680103 11,310 -100 -0.88 831 -0.12 0.5734
2025-10-22 2025-09-30 13F ONEOK INC NEW COM Stock 682680103 11,410 -100 -0.87 833 -11.40 0.5813
2025-07-28 2025-06-30 13F/A-1 ONEOK INC NEW COM Stock 682680103 11,510 -325 -2.75 940 -20.02 0.7065
2025-07-25 2025-06-30 13F ONEOK INC Stock 682680103 11,835 0 1,174 0.8876
2025-04-01 2025-03-31 13F ONEOK INC Stock 682680103 11,835 -200 -1.66 1,174 -2.81 0.8876
2025-01-23 2024-12-31 13F ONEOK INC Stock 682680103 12,035 0 0.00 1,208 10.22 0.8242
2024-10-15 2024-09-30 13F ONEOK INC Stock 682680103 12,035 -2,000 -14.25 1,097 -4.20 0.7130
2024-07-24 2024-06-30 13F ONEOK INC Stock 682680103 14,035 0 0.00 1,145 1.69 0.6986
2024-04-18 2024-03-31 13F ONEOK INC Stock 682680103 14,035 -1,000 -6.65 1,125 6.64 0.6974
2024-01-16 2023-12-31 13F ONEOK INC Stock 682680103 15,035 200 1.35 1,056 12.23 0.7093
2023-10-10 2023-09-30 13F ONEOK INC Stock 682680103 14,835 0 0.00 941 2.73 0.6895
2023-07-17 2023-06-30 13F ONEOK INC Stock 682680103 14,835 0 0.00 916 -2.87 0.6636
2023-04-20 2023-03-31 13F ONEOK INC Stock 682680103 14,835 0 0.00 943 -3.29 0.7223
2023-01-24 2022-12-31 13F ONEOK INC Stock 682680103 14,835 0 0.00 975 28.16 0.8307
2022-10-31 2022-09-30 13F ONEOK INC Stock 682680103 14,835 -100 -0.67 760 -8.32 0.6541
2022-07-29 2022-06-30 13F ONEOK INC Stock 682680103 14,935 0 0.00 829 -21.42 0.6538
2022-04-26 2022-03-31 13F ONEOK INC NEW COM Stock 682680103 14,935 0 0.00 1,055 20.16 0.6844
2022-01-10 2021-12-31 13F ONEOK INC Stock 682680103 14,935 500 3.46 878 4.90 0.5290
2021-10-26 2021-09-30 13F ONEOK INC NEW COM Stock 682680103 14,435 -300 -2.04 837 -89.69 0.5201
2021-07-27 2021-06-30 13F ONEOK INC NEW COM COM 682680103 14,735 350 2.43 8,120 1,013.85 4.8672
2021-05-06 2021-03-31 13F/A-2 ONEOK INC Stock 682680103 14,385 1,850 14.76 729 51.56 0.5246
2021-05-05 2021-03-31 13F/A-1 ONEOK INC Stock 682680103 14,385 0 729 0.5288
2021-04-16 2021-03-31 13F ONEOK INC Stock 682680103 12,060 -475 263 0.3062
2022-04-25 2020-12-31 13F/A-1 ONEOK INC NEW COM Stock 682680103 12,535 -100 -0.79 481 46.65 0.3705
2021-01-27 2020-12-31 13F ONEOK INC COM 682680103 12,535 -100 481 0.3391
2020-10-23 2020-09-30 13F ONEOK INC COM 682680103 12,635 600 4.99 328 -18.00 0.2843
2020-07-28 2020-06-30 13F ONEOK INC COM 682680103 12,035 575 5.02 400 60.00 0.3935
2020-04-14 2020-03-31 13F ONEOK COM 682680103 11,460 -200 -1.72 250 -71.66 0.3201
2020-01-16 2019-12-31 13F ONEOK INC COM 682680103 11,660 0 0.00 882 2.68 0.8594
2019-10-11 2019-09-30 13F ONEOK INC COM 682680103 11,660 760 6.97 859 14.53 0.9320
2019-07-15 2019-06-30 13F ONEOK INC NEW COM COM 682680103 10,900 300 2.83 750 1.35 0.8047
2019-04-24 2019-03-31 13F ONEOK INC COM 682680103 10,600 -890 -7.75 740 19.35 0.7694
2019-02-01 2018-12-31 13F ONEOK COM 682680103 11,490 0 0.00 620 -20.41 0.7076
2018-10-23 2018-09-30 13F ONEOK INC NEW COM COM 682680103 11,490 -2,140 -15.70 779 -18.17 0.7461
2018-07-30 2018-06-30 13F ONEOK COM 682680103 13,630 -150 -1.09 952 21.43 0.9157
2018-04-27 2018-03-31 13F ONEOK COM 682680103 13,780 -840 -5.75 784 0.38 0.7839
2018-02-21 2017-12-31 13F ONEOK COM 682680103 14,620 -640 -4.19 781 -0.38 0.7031
2016-10-27 2016-09-30 13F ONEOK COM 682680103 15,260 0 0.00 784 8.29 0.8448
2016-08-05 2016-06-30 13F ONEOK COM 682680103 15,260 -400 -2.55 724 54.70 0.7983
2016-04-21 2016-03-31 13F ONEOK COM 682680103 15,660 0 0.00 468 21.24 0.5153
2016-01-29 2015-12-31 13F ONEOK COM 682680103 15,660 200 1.29 386 -22.49 0.3959
2015-11-12 2015-09-30 13F ONEOK COM 682680103 15,460 15,460 -1.28 498 29.02 0.5273
2015-08-04 2015-06-30 13F ONEOK COM 682680103 0 -15,600 -100.00 0 -100.00
2015-04-27 2015-03-31 13F ONEOK COM 682680103 15,600 15,600 0.00 753 0.6689
2015-01-28 2014-12-31 13F ONEOK COM 682680103 0 -15,600 -100.00 0 -100.00
2014-10-16 2014-09-30 13F ONEOK COM 682680103 15,600 0 0.00 1,023 -3.67 0.9433
2014-08-04 2014-06-30 13F ONEOK INC COM 682680103 15,600 200 1.30 1,062 16.45 0.9379
2014-05-07 2014-03-31 13F/A-1 ONEOK COM 682680103 15,400 -200 -1.28 912 -5.98 0.8624
2014-05-02 2014-03-31 13F ONEOK COM 682680103 15,600 970
2014-03-25 2013-12-31 13F ONEOK COM 682680103 15,600 15,600 970 0.9413
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.