OGE Energy Corp.
US ˙ NYSE ˙ US6708371033

SecurityOGE / OGE Energy Corp.
InstitutionBrown Advisory Inc
Latest Disclosed Ownership19,979 shares
Latest Disclosed Value $ 958,193
Brown Advisory Inc reports 29.24% increase in ownership of OGE / OGE Energy Corp.

On May 15, 2026 - Brown Advisory Inc filed a 13F-HR form disclosing ownership of 19,979 shares of OGE Energy Corp. (US:OGE) valued at $958,193 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 15,459 shares of OGE Energy Corp.. This represents a change in shares of 29.24% during the quarter. The current value of the position is $938,414 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)
2026-05-15 2026-03-31 13F OGE ENERGY COM 670837103 19,979 4,520 29.24 958 45.15 0.0016
2026-02-13 2025-12-31 13F OGE ENERGY COM 670837103 15,459 -4,538 -22.69 660 -28.65 0.0009
2025-11-14 2025-09-30 13F OGE ENERGY COM 670837103 19,997 0 0.00 925 4.28 0.0012
2025-08-13 2025-06-30 13F OGE ENERGY COM 670837103 19,997 36 0.18 887 -3.27 0.0012
2025-04-30 2025-03-31 13F OGE ENERGY COM 670837103 19,961 -2 -0.01 917 11.42 0.0013
2025-02-14 2024-12-31 13F OGE ENERGY COM 670837103 19,963 5,700 39.96 823 40.68 0.0010
2024-11-13 2024-09-30 13F OGE ENERGY COM 670837103 14,263 0 0.00 585 14.93 0.0007
2024-08-14 2024-06-30 13F OGE ENERGY COM 670837103 14,263 -1,400 -8.94 509 -5.21 0.0007
2024-04-24 2024-03-31 13F OGE ENERGY COM 670837103 15,663 46 0.29 537 -1.47 0.0007
2024-02-08 2023-12-31 13F OGE ENERGY COM 670837103 15,617 50 0.32 546 5.21 0.0008
2023-10-25 2023-09-30 13F OGE ENERGY COM 670837103 15,567 0 0.00 519 -7.33 0.0009
2023-07-31 2023-06-30 13F OGE ENERGY COM 670837103 15,567 0 0.00 559 -4.61 0.0009
2023-05-08 2023-03-31 13F OGE ENERGY COM 670837103 15,567 -34 -0.22 586 -5.02 0.0010
2023-02-13 2022-12-31 13F OGE ENERGY COM 670837103 15,601 0 0.00 617 8.44 0.0011
2022-11-14 2022-09-30 13F OGE ENERGY COM 670837103 15,601 213 1.38 569 -4.05 0.0011
2022-11-14 2022-06-30 13F/A-2 OGE ENERGY COM 670837103 15,388 1,600 11.60 593 5.33 0.0011
2022-09-13 2022-06-30 13F/A-1 OGE ENERGY COM 670837103 11,034 1,600 425 0.0007
2022-08-02 2022-06-30 13F OGE ENERGY COM 670837103 11,034 1,600 425 0.0007
2022-11-14 2022-03-31 13F/A-2 OGE ENERGY COM 670837103 13,788 4,354 46.15 563 55.52 0.0008
2022-09-13 2022-03-31 13F/A-1 OGE ENERGY COM 670837103 9,434 0 385 0.0005
2022-05-09 2022-03-31 13F OGE ENERGY COM 670837103 9,434 0 385 0.0005
2022-01-27 2021-12-31 13F OGE ENERGY COM 670837103 9,434 0 0.00 362 16.40 0.0004
2021-11-12 2021-09-30 13F OGE ENERGY COM 670837103 9,434 -4,354 -31.58 311 -32.97 0.0005
2021-07-29 2021-06-30 13F OGE ENERGY COM 670837103 13,788 4,321 45.64 464 51.63 0.0007
2021-05-14 2021-03-31 13F OGE ENERGY COM 670837103 9,467 1,152 13.85 306 15.47 0.0005
2021-02-12 2020-12-31 13F OGE ENERGY COM 670837103 8,315 -289 -3.36 265 2.71 0.0005
2020-11-16 2020-09-30 13F OGE ENERGY COM 670837103 8,604 604 7.55 258 6.17 0.0005
2020-08-14 2020-06-30 13F OGE ENERGY COM 670837103 8,000 0 0.00 243 -1.22 0.0006
2020-05-15 2020-03-31 13F OGE ENERGY COM 670837103 8,000 0 0.00 246 -30.90 0.0008
2020-02-14 2019-12-31 13F OGE ENERGY COM 670837103 8,000 0 0.00 356 -1.93 0.0009
2019-11-14 2019-09-30 13F OGE ENERGY COM 670837103 8,000 0 0.00 363 6.76 0.0010
2019-08-12 2019-06-30 13F OGE ENERGY COM 670837103 8,000 -852 -9.62 340 -10.99 0.0010
2019-05-15 2019-03-31 13F OGE ENERGY COM 670837103 8,852 -73 -0.82 382 9.46 0.0011
2019-02-13 2018-12-31 13F OGE ENERGY COM 670837103 8,925 0 0.00 349 7.72 0.0012
2018-11-13 2018-09-30 13F OGE ENERGY COM 670837103 8,925 0 0.00 324 3.18 0.0009
2018-08-10 2018-06-30 13F OGE ENERGY COM 670837103 8,925 73 0.82 314 8.28 0.0010
2018-06-28 2018-03-31 13F/A-1 OGE ENERGY COM 670837103 8,852 -959 -9.77 290 -10.22 0.0009
2018-05-14 2018-03-31 13F OGE ENERGY COM 670837103 8,852 -959 290
2018-02-12 2017-12-31 13F OGE ENERGY COM 670837103 9,811 -1,432 -12.74 323 -20.25 0.0010
2017-11-13 2017-09-30 13F OGE ENERGY COM 670837103 11,243 278 2.54 405 6.02 0.0013
2017-08-14 2017-06-30 13F OGE ENERGY COM 670837103 10,965 -2,299 -17.33 382 -17.67 0.0012
2017-05-15 2017-03-31 13F OGE ENERGY COM 670837103 13,264 1,004 8.19 464 13.17 0.0016
2017-02-13 2016-12-31 13F OGE ENERGY COM 670837103 12,260 -63,088 -83.73 410 -82.79 0.0015
2016-11-14 2016-09-30 13F OGE ENERGY COM 670837103 75,348 50 0.07 2,383 -3.37 0.0082
2016-08-09 2016-06-30 13F OGE ENERGY COM 670837103 75,298 75,298 2,466 0.0087
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.