ONEOK, Inc.
US ˙ NYSE ˙ US6826801036

SecurityOKE / ONEOK, Inc.
InstitutionCoreFirst Bank & Trust
Latest Disclosed Ownership4,082 shares
Latest Disclosed Value $ 368,972
CoreFirst Bank & Trust reports 10.32% increase in ownership of OKE / ONEOK, Inc.

On June 3, 2026 - CoreFirst Bank & Trust filed a 13F-HR form disclosing ownership of 4,082 shares of ONEOK, Inc. (US:OKE) valued at $368,972 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 3,700 shares of ONEOK, Inc.. This represents a change in shares of 10.32% during the quarter. The current value of the position is $363,094 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)
2026-06-03 2026-03-31 13F ONEOK Com 682680103 4,082 382 10.32 369 35.79 0.1246
2026-02-11 2025-12-31 13F ONEOK Com 682680103 3,700 -664 -15.22 272 -14.78 0.1470
2025-11-13 2025-09-30 13F ONEOK Com 682680103 4,364 0 0.00 318 -10.67 0.1096
2025-08-14 2025-06-30 13F ONEOK Com 682680103 4,364 0 0.00 356 -17.59 0.2012
2025-04-29 2025-03-31 13F ONEOK Com 682680103 4,364 -200 -4.38 433 -5.68 0.2784
2025-02-11 2024-12-31 13F ONEOK Com 682680103 4,564 464 11.32 458 22.79 0.2724
2025-02-11 2024-09-30 13F ONEOK Com 682680103 4,100 0 0.00 374 11.68 0.2159
2024-08-14 2024-06-30 13F ONEOK Com 682680103 4,100 -360 -8.07 334 -6.44 0.2250
2024-05-15 2024-03-31 13F ONEOK Com 682680103 4,460 0 0.00 358 14.06 0.2236
2024-03-18 2023-12-31 13F ONEOK Com 682680103 4,460 -200 -4.29 313 6.10 0.2082
2023-12-18 2023-09-30 13F ONEOK Com 682680103 4,660 560 13.66 296 16.60 0.2099
2023-08-07 2023-06-30 13F ONEOK Com 682680103 4,100 -630 -13.32 253 -15.67 0.1781
2023-05-15 2023-03-31 13F ONEOK Com 682680103 4,730 -1,500 -24.08 301 -26.65 0.2187
2023-02-16 2022-12-31 13F ONEOK Com 682680103 6,230 0 0.00 409 28.21 0.3105
2022-11-16 2022-09-30 13F ONEOK Com 682680103 6,230 0 0.00 319 -7.80 0.2752
2022-08-16 2022-06-30 13F ONEOK Com 682680103 6,230 -262 -4.04 346 -24.62 0.2733
2022-05-16 2022-03-31 13F ONEOK Com 682680103 6,492 0 0.00 459 20.47 0.3140
2022-02-10 2021-12-31 13F ONEOK Com 682680103 6,492 -3,017 -31.73 381 -30.85 0.2464
2021-11-15 2021-09-30 13F ONEOK Com 682680103 9,509 -1,012 -9.62 551 -5.81 0.3819
2021-08-17 2021-06-30 13F ONEOK Com 682680103 10,521 -100 -0.94 585 8.74 0.3981
2021-05-18 2021-03-31 13F ONEOK Com 682680103 10,621 0 0.00 538 31.86 0.3695
2021-02-16 2020-12-31 13F ONEOK Com 682680103 10,621 10,621 408 0.3024
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.