Prosperity Bancshares, Inc.
US ˙ NYSE ˙ US7436061052

SecurityPB / Prosperity Bancshares, Inc.
InstitutionMan Group plc
Latest Disclosed Ownership62,974 shares
Latest Disclosed Value $ 4,230,593
Man Group plc reports 32.58% decrease in ownership of PB / Prosperity Bancshares, Inc.

On May 15, 2026 - Man Group plc filed a 13F-HR form disclosing ownership of 62,974 shares of Prosperity Bancshares, Inc. (US:PB) valued at $4,230,593 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 93,404 shares of Prosperity Bancshares, Inc.. This represents a change in shares of -32.58% during the quarter. The current value of the position is $4,253,894 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 PROSPERITY BANCSHARES COM 743606105 62,974 -30,430 -32.58 4,231 -34.47 0.0077
2026-02-17 2025-12-31 13F PROSPERITY BANCSHARES COM 743606105 93,404 -13,669 -12.77 6,455 -9.14 0.0110
2025-11-14 2025-09-30 13F PROSPERITY BANCSHARES COM 743606105 107,073 37,340 53.55 7,104 45.04 0.0124
2025-08-14 2025-06-30 13F PROSPERITY BANCSHARES COM 743606105 69,733 26,269 60.44 4,898 57.90 0.0093
2025-05-15 2025-03-31 13F PROSPERITY BANCSHARES COM 743606105 43,464 35,124 421.15 3,102 393.95 0.0079
2025-02-14 2024-12-31 13F PROSPERITY BANCSHARES COM 743606105 8,340 628 0.48 0.0017
2023-05-15 2023-03-31 13F PROSPERITY BANCSHARES COM 743606105 625 -77.82 0.0022
2023-02-14 2022-12-31 13F PROSPERITY BANCSHARES COM 743606105 38,783 -14,748 -27.55 2,819 -21.04 0.0101
2022-11-14 2022-09-30 13F PROSPERITY BANCSHARES COM 743606105 53,531 3,569 -58.43 0.0166
2022-08-15 2022-06-30 13F PROSPERITY BANCSHARES COM 743606105 8,585 -17.55 0.0364
2022-05-16 2022-03-31 13F PROSPERITY BANCSHARES COM 743606105 150,074 23,780 18.83 10,412 14.03 0.0362
2022-02-14 2021-12-31 13F PROSPERITY BANCSHARES COM 743606105 126,294 21,056 20.01 9,131 21.97 0.0294
2021-11-15 2021-09-30 13F PROSPERITY BANCSHARES COM 743606105 105,238 -1,118 -1.05 7,486 -1.98 0.0263
2021-08-16 2021-06-30 13F PROSPERITY BANCSHARES COM 743606105 106,356 -24,277 -18.58 7,637 -21.94 0.0269
2021-05-17 2021-03-31 13F PROSPERITY BANCSHARES COM 743606105 130,633 1,287 1.00 9,783 9.05 0.0430
2021-02-16 2020-12-31 13F PROSPERITY BANCSHARES COM 743606105 129,346 -47,346 -26.80 8,971 -2.04 0.0394
2020-11-16 2020-09-30 13F PROSPERITY BANCSHARES COM 743606105 176,692 83,510 89.62 9,158 65.52 0.0360
2020-08-14 2020-06-30 13F PROSPERITY BANCSHARES COM 743606105 93,182 25,666 38.01 5,533 69.83 0.0279
2020-05-15 2020-03-31 13F PROSPERITY BANCSHARES COM 743606105 67,516 59,916 788.37 3,258 496.70 0.0211
2020-02-18 2019-12-31 13F PROSPERITY BANCSHARES COM 743606105 7,600 -21,902 -74.24 546 -73.80 0.0018
2019-11-14 2019-09-30 13F PROSPERITY BANCSHARES COM 743606105 29,502 -41,445 -58.42 2,084 -55.53 0.0077
2019-08-14 2019-06-30 13F PROSPERITY BANCSHARES COM 743606105 70,947 55,408 356.57 4,686 336.72 0.0169
2019-05-15 2019-03-31 13F PROSPERITY BANCSHARES COM 743606105 15,539 15,539 1,073 0.0041
2018-11-14 2018-09-30 13F PROSPERITY BANCSHARES COM 743606105 0 -54,661 -100.00 0 -100.00
2018-08-14 2018-06-30 13F PROSPERITY BANCSHARES COM 743606105 54,661 -12,593 -18.72 3,736 -23.52 0.0154
2018-05-15 2018-03-31 13F PROSPERITY BANCSHARES COM 743606105 67,254 67,254 4,885 0.0224
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.