Regions Financial Corporation
MX ˙ BMV ˙ US7591EP1005
SecurityMX:RF / Regions Financial Corporation
InstitutionMarshall Wace, Llp
Latest Disclosed Ownership509,217 shares
Latest Disclosed Value $ 13,300,749
Marshall Wace, Llp ownership in RF / Regions Financial Corporation

On May 14, 2026 - Marshall Wace, Llp filed a 13F-HR form disclosing ownership of 509,217 shares of Regions Financial Corporation (MX:RF) valued at $13,300,749 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,530,356 shares of Regions Financial Corporation. This represents a change in shares of -79.88% during the quarter.

Marshall Wace, Llp has a history of taking positions in derivatives of the underlying security (RF) in the form of stock options.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:RF / Regions Financial Corporation Historical Put/Call Ratio
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)
2026-05-14 2026-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 509,217 -2,021,139 -79.88 13,301 -80.60 0.0132
2026-02-13 2025-12-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 2,530,356 604,212 31.37 68,573 35.01 0.0624
2025-11-13 2025-09-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 1,926,144 -74,507 -3.72 50,792 7.94 0.0515
2025-08-13 2025-06-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 2,000,651 465,620 30.33 47,055 41.07 0.0530
2025-05-15 2025-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 1,535,031 842,529 121.66 33,356 104.80 0.0423
2025-02-13 2024-12-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 692,502 657,222 1,862.87 16,288 1,878.98 0.0196
2024-11-14 2024-09-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 35,280 6,280 21.66 823 41.65 0.0010
2024-08-14 2024-06-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 29,000 29,000 581 0.0008
2024-02-14 2023-12-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 0 -261,719 -100.00 0 -100.00
2023-11-14 2023-09-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 261,719 -184,997 -41.41 4,502 -43.45 0.0091
2023-08-14 2023-06-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 446,716 446,716 7,960 0.0155
2023-05-15 2023-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 0 -252,713 -100.00 0 -100.00
2023-02-14 2022-12-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 252,713 -171,252 -40.39 5,448 -35.96 0.0123
2022-11-14 2022-09-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 423,965 423,965 8,507 0.0186
2022-08-15 2022-06-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 0 -294,099 -100.00 0 -100.00
2022-05-16 2022-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 294,099 294,099 6,547 0.0124
2022-02-14 2021-12-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 0 -327,834 -100.00 0 -100.00
2021-11-15 2021-09-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 327,834 -150,239 -31.43 6,986 -27.58 0.0290
2021-08-13 2021-06-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 478,073 187,384 64.46 9,647 60.62 0.0470
2021-05-17 2021-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 290,689 290,689 -39.20 6,006 -37.74 0.0275
2020-11-16 2020-09-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 0 -34,359 -100.00 0 -100.00
2020-08-13 2020-06-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 34,359 31,799 1,242.15 382 1,560.87 0.0027
2020-05-15 2020-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 2,560 2,471 2,776.40 23 1,050.00 0.0002
2020-02-14 2019-12-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 89 -102,624 -99.91 2 -99.88 0.0000
2019-11-14 2019-09-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 102,713 -962,717 -90.36 1,625 -89.79 0.0128
2019-08-14 2019-06-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 1,065,430 -42,568 -3.84 15,918 1.53 0.1310
2019-05-29 2019-03-31 13F/A-1 REGIONS FINANCIA COMMON STOCK 7591EP100 1,107,998 1,000,240 928.23 15,678 987.24 0.1474
2019-05-14 2019-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 1,107,998 1,000,240 15,678
2019-02-14 2018-12-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 107,758 107,758 -90.27 1,442 -90.80 0.0147
2018-05-15 2018-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 0 -79,173 -100.00 0 -100.00
2018-03-29 2017-12-31 13F/A-1 REGIONS FINANCIA COMMON STOCK 7591EP100 79,173 79,173 1,368 0.0575
2018-02-14 2017-12-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 79,173 79,173 1,368
2017-08-04 2017-06-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 0 -18,021 -100.00 0 -100.00
2017-05-12 2017-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 18,021 -4,705,740 -99.62 270 -99.60 0.0130
2017-02-10 2016-12-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 4,723,761 1,579,041 50.21 67,833 118.55 0.4460
2016-11-10 2016-09-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 3,144,720 -785,565 -19.99 31,038 -7.20 0.2207
2016-08-12 2016-06-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 3,930,285 82,127 2.13 33,447 10.72 0.2812
2016-05-13 2016-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 3,848,158 -3,817,021 -49.80 30,208 -58.95 0.2911
2016-02-10 2015-12-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 7,665,179 2,613,759 51.74 73,586 61.68 0.6905
2015-11-12 2015-09-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 5,051,420 159,084 3.25 45,513 -10.20 0.5592
2015-08-14 2015-06-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 4,892,336 1,206,195 32.72 50,685 45.50 0.6611
2015-05-11 2015-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 3,686,141 2,352,606 176.42 34,834 147.37 0.4539
2015-02-17 2014-12-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 1,333,535 -2,657,765 -66.59 14,082 -64.86 0.1859
2014-11-13 2014-09-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 3,991,300 2,767,356 226.10 40,072 208.29 0.5781
2014-08-14 2014-06-30 13F REGIONS FINANCIA COMMON STOCK 7591EP100 1,223,944 -2,346,545 -65.72 12,998 -67.23 0.1913
2014-05-14 2014-03-31 13F REGIONS FINANCIA COMMON STOCK 7591EP100 3,570,489 3,570,489 39,668 0.7214
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-02-14 2023-12-31 13F REGIONS FINANCIA EQUITY OPTION Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-14 2023-09-30 13F REGIONS FINANCIA EQUITY OPTION Put 100,000 1,720 n/a n/a n/a
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.