Prosperity Bancshares, Inc.
US ˙ NYSE ˙ US7436061052

SecurityPB / Prosperity Bancshares, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership990,264 shares
Latest Disclosed Value $ 66,525,934
Northern Trust Corp reports 4.45% increase in ownership of PB / Prosperity Bancshares, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 990,264 shares of Prosperity Bancshares, Inc. (US:PB) valued at $66,525,936 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 948,052 shares of Prosperity Bancshares, Inc.. This represents a change in shares of 4.45% during the quarter. The current value of the position is $68,080,650 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)
2026-05-14 2026-03-31 13F PROSPERITY BANCSHARES COM 743606105 990,264 42,212 4.45 66,526 1.54 0.0018
2026-02-17 2025-12-31 13F PROSPERITY BANCSHARES COM 743606105 948,052 66,417 7.53 65,520 12.01 0.0017
2025-11-14 2025-09-30 13F PROSPERITY BANCSHARES COM 743606105 881,635 28,990 3.40 58,496 -2.33 0.0075
2025-08-13 2025-06-30 13F PROSPERITY BANCSHARES COM 743606105 852,645 2,482 0.29 59,890 -1.30 0.0082
2025-05-13 2025-03-31 13F PROSPERITY BANCSHARES COM 743606105 850,163 -86,945 -9.28 60,676 -14.07 0.0090
2025-02-14 2024-12-31 13F PROSPERITY BANCSHARES COM 743606105 937,108 190,449 25.51 70,611 31.22 0.0100
2024-11-13 2024-09-30 13F PROSPERITY BANCSHARES COM 743606105 746,659 -50,234 -6.30 53,812 10.44 0.0088
2024-08-14 2024-06-30 13F PROSPERITY BANCSHARES COM 743606105 796,893 81,031 11.32 48,722 3.47 0.0082
2024-05-14 2024-03-31 13F PROSPERITY BANCSHARES COM 743606105 715,862 -103,303 -12.61 47,089 -15.13 0.0081
2024-02-13 2023-12-31 13F PROSPERITY BANCSHARES COM 743606105 819,165 25,159 3.17 55,482 28.03 0.0100
2023-11-13 2023-09-30 13F PROSPERITY BANCSHARES COM 743606105 794,006 -170,306 -17.66 43,337 -20.43 0.0084
2023-08-11 2023-06-30 13F PROSPERITY BANCSHARES COM 743606105 964,312 -304,803 -24.02 54,464 -30.24 0.0105
2023-05-15 2023-03-31 13F PROSPERITY BANCSHARES COM 743606105 1,269,115 3,384 0.27 78,076 -15.13 0.0155
2023-02-13 2022-12-31 13F PROSPERITY BANCSHARES COM 743606105 1,265,731 37,015 3.01 91,993 12.28 0.0193
2022-11-14 2022-09-30 13F PROSPERITY BANCSHARES COM 743606105 1,228,716 46,938 3.97 81,931 1.55 0.0187
2022-08-12 2022-06-30 13F PROSPERITY BANCSHARES COM 743606105 1,181,778 469,994 66.03 80,680 63.37 0.0173
2022-05-13 2022-03-31 13F PROSPERITY BANCSHARES COM 743606105 711,784 -14,401 -1.98 49,384 -5.94 0.0087
2022-02-08 2021-12-31 13F PROSPERITY BANCSHARES COM 743606105 726,185 -13,226 -1.79 52,503 -0.17 0.0086
2021-11-15 2021-09-30 13F PROSPERITY BANCSHARES COM 743606105 739,411 -45,137 -5.75 52,594 -6.63 0.0093
2021-08-13 2021-06-30 13F PROSPERITY BANCSHARES COM 743606105 784,548 -95,305 -10.83 56,330 -14.51 0.0099
2021-05-12 2021-03-31 13F PROSPERITY BANCSHARES COM 743606105 879,853 107,759 13.96 65,892 23.05 0.0123
2021-02-11 2020-12-31 13F PROSPERITY BANCSHARES COM 743606105 772,094 -95 -0.01 53,551 33.80 0.0104
2020-11-16 2020-09-30 13F PROSPERITY BANCSHARES COM 743606105 772,189 -19,199 -2.43 40,022 -14.83 0.0088
2020-08-14 2020-06-30 13F PROSPERITY BANCSHARES COM 743606105 791,388 -264,543 -25.05 46,993 -7.76 0.0111
2020-05-14 2020-03-31 13F PROSPERITY BANCSHARES COM 743606105 1,055,931 -29,635 -2.73 50,949 -34.72 0.0146
2020-02-14 2019-12-31 13F PROSPERITY BANCSHARES COM 743606105 1,085,566 298,481 37.92 78,042 40.38 0.0175
2019-11-13 2019-09-30 13F PROSPERITY BANCSHARES COM 743606105 787,085 -1,757 -0.22 55,592 6.70 0.0133
2019-08-13 2019-06-30 13F PROSPERITY BANCSHARES COM 743606105 788,842 -9,702 -1.21 52,103 -5.52 0.0124
2019-05-13 2019-03-31 13F PROSPERITY BANCSHARES COM 743606105 798,544 24,056 3.11 55,148 14.30 0.0136
2019-02-12 2018-12-31 13F PROSPERITY BANCSHARES COM 743606105 774,488 11,699 1.53 48,250 -8.79 0.0135
2018-11-14 2018-09-30 13F PROSPERITY BANCSHARES COM 743606105 762,789 -49,917 -6.14 52,900 -4.78 0.0129
2018-09-18 2018-06-30 13F/A-1 PROSPERITY BANCSHARES COM 743606105 812,706 -12,632 -1.53 55,557 -7.32 0.0141
2018-08-14 2018-06-30 13F PROSPERITY BANCSHARES COM 743606105 817,269 -8,069 55,869
2018-05-09 2018-03-31 13F PROSPERITY BANCSHARES COM 743606105 825,338 3,787 0.46 59,944 4.13 0.0156
2018-02-14 2017-12-31 13F PROSPERITY BANCSHARES COM 743606105 821,551 -20,862 -2.48 57,565 3.96 0.0146
2017-11-13 2017-09-30 13F PROSPERITY BANCSHARES COM 743606105 842,413 -190,821 -18.47 55,371 -16.58 0.0144
2017-08-11 2017-06-30 13F PROSPERITY BANCSHARES COM 743606105 1,033,234 -870,734 -45.73 66,374 -49.99 0.0186
2017-05-12 2017-03-31 13F PROSPERITY BANCSHARES COM 743606105 1,903,968 -27,485 -1.42 132,725 -4.27 0.0383
2017-02-13 2016-12-31 13F PROSPERITY BANCSHARES COM 743606105 1,931,453 11,324 0.59 138,639 31.54 0.0425
2016-11-09 2016-09-30 13F PROSPERITY BANCSHARES COM 743606105 1,920,129 86,188 4.70 105,396 12.71 0.0328
2016-08-12 2016-06-30 13F PROSPERITY BANCSHARES COM 743606105 1,833,941 9,318 0.51 93,512 10.31 0.0304
2016-08-19 2016-03-31 13F/A-1 PROSPERITY BANCSHARES COM 743606105 1,824,623 20,563 1.14 84,771 -1.82 0.0281
2016-05-13 2016-03-31 13F Prosperity Bancshare COMM 743606105 1,824,623 84,645
2016-02-12 2015-12-31 13F Prosperity Bancshare COMM 743606105 1,804,060 -30,608 -1.67 86,342 -4.17 0.0286
2015-11-12 2015-09-30 13F PROSPERITY BANCSHARES COM 743606105 1,834,668 1,834,668 0.00 90,101 0.0301
2015-08-13 2015-06-30 13F Prosperity Bancshare COMM 743606105 0 -1,663,507 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Prosperity Bancshare COMM 743606105 1,663,507 74,623 4.70 87,300 -0.75 0.0263
2015-02-12 2014-12-31 13F Prosperity Bancshare COM 743606105 1,588,884 -24,850 -1.54 87,960 -4.66 0.0266
2014-11-13 2014-09-30 13F Prosperity Bancshare COMM 743606105 1,613,734 35,921 2.28 92,258 -6.59 0.0290
2014-08-14 2014-06-30 13F PROSPERITY BANCSHARES com 743606105 1,577,813 -314 -0.02 98,772 -5.38 0.0308
2014-05-14 2014-03-31 13F PROSPERITY BANCSHARES COMM 743606105 1,578,127 -53,509 -3.28 104,393 0.93 0.0328
2014-02-21 2013-12-31 13F/A-1 PROSPERITY BANCSHARES COM 743606105 1,631,636 14,122 0.87 103,429 3.40 0.0332
2014-02-12 2013-12-31 13F PROSPERITY BANCSHARES COM 743606105 1,631,636 103,429
2013-11-13 2013-09-30 13F PROSPERITY BANCSHARES COM 743606105 1,617,514 157,957 10.82 100,026 32.33 0.0352
2013-08-09 2013-06-30 13F PROSPERITY BANCSHARES COM 743606105 1,459,557 1,459,557 75,590 0.0274
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.