Prosperity Bancshares, Inc.
US ˙ NYSE ˙ US7436061052

SecurityPB / Prosperity Bancshares, Inc.
InstitutionStifel Financial Corp
Latest Disclosed Ownership152,635 shares
Latest Disclosed Value $ 10,253,925
Stifel Financial Corp reports 5.68% increase in ownership of PB / Prosperity Bancshares, Inc.

On May 12, 2026 - Stifel Financial Corp filed a 13F-HR form disclosing ownership of 152,635 shares of Prosperity Bancshares, Inc. (US:PB) valued at $10,254,019 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 144,436 shares of Prosperity Bancshares, Inc.. This represents a change in shares of 5.68% during the quarter. The current value of the position is $10,493,656 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)
2026-05-12 2026-03-31 13F PROSPERITY BANCSHARES COM 743606105 152,635 8,199 5.68 10,254 2.73 0.0022
2026-02-13 2025-12-31 13F PROSPERITY BANCSHARES COM 743606105 144,436 -6,333 -4.20 9,982 -0.22 0.0090
2025-11-12 2025-09-30 13F PROSPERITY BANCSHARES COM 743606105 150,769 29,631 24.46 10,004 17.57 0.0091
2025-08-14 2025-06-30 13F PROSPERITY BANCSHARES COM 743606105 121,138 4,067 3.47 8,509 1.83 0.0083
2025-05-14 2025-03-31 13F PROSPERITY BANCSHARES COM 743606105 117,071 5,195 4.64 8,355 -0.88 0.0089
2025-02-13 2024-12-31 13F PROSPERITY BANCSHARES COM 743606105 111,876 -1,417 -1.25 8,430 3.25 0.0088
2024-11-14 2024-09-30 13F PROSPERITY BANCSHARES COM 743606105 113,293 4,677 4.31 8,165 22.95 0.0086
2024-08-13 2024-06-30 13F PROSPERITY BANCSHARES COM 743606105 108,616 -656 -0.60 6,641 -7.61 0.0075
2024-05-14 2024-03-31 13F PROSPERITY BANCSHARES COM 743606105 109,272 22,941 26.57 7,188 22.92 0.0082
2024-02-12 2023-12-31 13F PROSPERITY BANCSHARES COM 743606105 86,331 2,682 3.21 5,847 28.08 0.0074
2023-11-13 2023-09-30 13F PROSPERITY BANCSHARES COM 743606105 83,649 1,146 1.39 4,566 -2.02 0.0064
2023-08-14 2023-06-30 13F PROSPERITY BANCSHARES COM 743606105 82,503 713 0.87 4,660 -7.39 0.0064
2023-05-12 2023-03-31 13F PROSPERITY BANCSHARES COM 743606105 81,790 -3,216 -3.78 5,032 -18.57 0.0072
2023-02-13 2022-12-31 13F PROSPERITY BANCSHARES COM 743606105 85,006 7,167 9.21 6,178 19.04 0.0093
2022-11-14 2022-09-30 13F PROSPERITY BANCSHARES COM 743606105 77,839 2,516 3.34 5,190 0.93 0.0085
2022-08-15 2022-06-30 13F PROSPERITY BANCSHARES COM 743606105 75,323 67,332 842.60 5,142 828.16 0.0080
2022-05-13 2022-03-31 13F PROSPERITY BANCSHARES COM 743606105 7,991 -9,971 -55.51 554 -57.35 0.0008
2022-02-14 2021-12-31 13F PROSPERITY BANCSHARES COM 743606105 17,962 -100 -0.55 1,299 1.09 0.0017
2021-11-15 2021-09-30 13F PROSPERITY BANCSHARES COM 743606105 18,062 -20 -0.11 1,285 -1.00 0.0019
2021-08-13 2021-06-30 13F PROSPERITY BANCSHARES COM 743606105 18,082 -211 -1.15 1,298 -5.26 0.0019
2021-05-14 2021-03-31 13F PROSPERITY BANCSHARES COM 743606105 18,293 10,501 134.77 1,370 153.70 0.0023
2021-02-12 2020-12-31 13F PROSPERITY BANCSHARES COM 743606105 7,792 2,807 56.31 540 109.30 0.0010
2020-11-16 2020-09-30 13F PROSPERITY BANCSHARES COM 743606105 4,985 -221 -4.25 258 -16.50 0.0005
2020-08-14 2020-06-30 13F PROSPERITY BANCSHARES COM 743606105 5,206 -3 -0.06 309 20.70 0.0007
2020-05-14 2020-03-31 13F PROSPERITY BANCSHARES COM 743606105 5,209 -339 -6.11 256 -36.16 0.0007
2020-02-13 2019-12-31 13F PROSPERITY BANCSHARES COM 743606105 5,548 5,548 401 0.0008
2016-11-15 2016-09-30 13F PROSPERITY BANCSHARES COM 743606105 0 -9,234 -100.00 0 -100.00
2016-08-17 2016-06-30 13F PROSPERITY BANCSHARES COM 743606105 9,234 -1,270 -12.09 471 -3.48 0.0022
2016-05-16 2016-03-31 13F PROSPERITY BANCSHARES COM 743606105 10,504 155 1.50 488 -1.41 0.0026
2016-03-21 2015-12-31 13F/A-2 PROSPERITY BANCSHARES COM 743606105 10,349 -791 -7.10 495 -9.51 0.0026
2016-02-26 2015-12-31 13F/A-1 PROSPERITY BANCSHARES COM 743606105 10,349 0 495 0.0026
2016-02-16 2015-12-31 13F PROSPERITY BANCSHARES COM 743606105 10,349 495
2015-11-16 2015-09-30 13F PROSPERITY BANCSHARES COM 743606105 11,140 34 0.31 547 -14.53 0.0031
2015-08-17 2015-06-30 13F/A-1 PROSPERITY BANCSHARES COM 743606105 11,106 -90 -0.80 640 8.84 0.0033
2015-08-17 2015-06-30 13F PROSPERITY BANCSHARES COM 743606105 11,106 640
2015-05-14 2015-03-31 13F PROSPERITY BANCSHARES COM 743606105 11,196 -36,067 -76.31 588 -77.53 0.0032
2015-02-13 2014-12-31 13F PROSPERITY BANCSHARES COM 743606105 47,263 34,654 274.84 2,617 262.97 0.0145
2014-11-13 2014-09-30 13F PROSPERITY BANCSHARES COM 743606105 12,609 6,258 98.54 721 81.16 0.0063
2014-08-14 2014-06-30 13F PROSPERITY BANCSHARES COM 743606105 6,351 3,023 90.84 398 80.91 0.0036
2014-05-15 2014-03-31 13F PROSPERITY BANCSHARES COM 743606105 3,328 3,328 220 0.0021
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.