Prosperity Bancshares, Inc.
US ˙ NYSE ˙ US7436061052

SecurityPB / Prosperity Bancshares, Inc.
InstitutionNatixis Advisors, L.p.
Latest Disclosed Ownership130,005 shares
Latest Disclosed Value $ 8,733
Natixis Advisors, L.p. reports 50.67% decrease in ownership of PB / Prosperity Bancshares, Inc.

On May 13, 2026 - Natixis Advisors, L.p. filed a 13F-HR form disclosing ownership of 130,005 shares of Prosperity Bancshares, Inc. (US:PB) valued at $8,733,736 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 263,546 shares of Prosperity Bancshares, Inc.. This represents a change in shares of -50.67% during the quarter. The current value of the position is $8,781,838 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)
2026-05-13 2026-03-31 13F PROSPERITY BANCSHARES COM 743606105 130,005 -133,541 -50.67 9 -55.56 0.0121
2026-02-10 2025-12-31 13F PROSPERITY BANCSHARES COM 743606105 263,546 3,533 1.36 18 5.88 0.0258
2025-11-13 2025-09-30 13F PROSPERITY BANCSHARES COM 743606105 260,013 17,633 7.27 17 0.00 0.0252
2025-08-13 2025-06-30 13F PROSPERITY BANCSHARES COM 743606105 242,380 28,691 13.43 17 13.33 0.0270
2025-05-08 2025-03-31 13F PROSPERITY BANCSHARES COM 743606105 213,689 4,391 2.10 15 0.00 0.0282
2025-02-10 2024-12-31 13F PROSPERITY BANCSHARES COM 743606105 209,298 -2,827 -1.33 16 0.00 0.0295
2024-11-06 2024-09-30 13F PROSPERITY BANCSHARES COM 743606105 212,125 18,424 9.51 15 36.36 0.0298
2024-08-01 2024-06-30 13F PROSPERITY BANCSHARES COM 743606105 193,701 7,044 3.77 12 -8.33 0.0257
2024-04-25 2024-03-31 13F PROSPERITY BANCSHARES COM 743606105 186,657 41,663 28.73 12 33.33 0.0282
2024-02-06 2023-12-31 13F PROSPERITY BANCSHARES COM 743606105 144,994 100,579 226.45 10 350.00 0.0258
2023-11-13 2023-09-30 13F PROSPERITY BANCSHARES COM 743606105 44,415 17,351 64.11 2 100.00 0.0074
2023-08-15 2023-06-30 13F PROSPERITY BANCSHARES COM 743606105 27,064 -304 -1.11 2 0.00 0.0047
2023-05-11 2023-03-31 13F PROSPERITY BANCSHARES COM 743606105 27,368 -9,678 -26.12 2 -50.00 0.0058
2023-01-27 2022-12-31 13F PROSPERITY BANCSHARES COM 743606105 37,046 7,039 23.46 3 -99.90 0.0102
2022-11-14 2022-09-30 13F PROSPERITY BANCSHARES COM 743606105 30,007 612 2.08 2,000 -0.30 0.0085
2022-08-12 2022-06-30 13F PROSPERITY BANCSHARES COM 743606105 29,395 -425 -1.43 2,006 -3.04 0.0088
2022-05-12 2022-03-31 13F PROSPERITY BANCSHARES COM 743606105 29,820 3,437 13.03 2,069 8.44 0.0079
2022-02-08 2021-12-31 13F PROSPERITY BANCSHARES COM 743606105 26,383 -21 -0.08 1,908 1.60 0.0073
2021-11-15 2021-09-30 13F PROSPERITY BANCSHARES COM 743606105 26,404 -249 -0.93 1,878 -1.88 0.0077
2021-08-12 2021-06-30 13F PROSPERITY BANCSHARES COM 743606105 26,653 -1,046 -3.78 1,914 -7.71 0.0089
2021-05-05 2021-03-31 13F PROSPERITY BANCSHARES COM 743606105 27,699 2,885 11.63 2,074 20.51 0.0108
2021-02-12 2020-12-31 13F PROSPERITY BANCSHARES COM 743606105 24,814 -17,548 -41.42 1,721 -21.59 0.0099
2020-11-12 2020-09-30 13F PROSPERITY BANCSHARES COM 743606105 42,362 -799 -1.85 2,195 -14.36 0.0138
2020-08-11 2020-06-30 13F PROSPERITY BANCSHARES COM 743606105 43,161 -649 -1.48 2,563 21.24 0.0170
2020-04-27 2020-03-31 13F PROSPERITY BANCSHARES COM 743606105 43,810 515 1.19 2,114 -32.09 0.0172
2020-02-10 2019-12-31 13F PROSPERITY BANCSHARES COM 743606105 43,295 4,983 13.01 3,113 15.04 0.0220
2019-11-12 2019-09-30 13F PROSPERITY BANCSHARES COM 743606105 38,312 -6,803 -15.08 2,706 -9.19 0.0215
2019-08-12 2019-06-30 13F PROSPERITY BANCSHARES COM 743606105 45,115 -1,045 -2.26 2,980 -6.50 0.0243
2019-05-15 2019-03-31 13F/A-1 PROSPERITY BANCSHARES COM 743606105 46,160 135 0.29 3,187 11.20 0.0279
2019-05-15 2019-03-31 13F PROSPERITY BANCSHARES COM 743606105 46,160 135 3,187
2019-02-13 2018-12-31 13F/A-1 PROSPERITY BANCSHARES COM 743606105 46,025 -28,266 -38.05 2,866 -44.37 0.0283
2019-02-13 2018-12-31 13F PROSPERITY BANCSHARES COM 743606105 46,025 -28,266 2,866
2018-11-13 2018-09-30 13F PROSPERITY BANCSHARES COM 743606105 74,291 11,186 17.73 5,152 19.45 0.0453
2018-08-14 2018-06-30 13F/A-1 PROSPERITY BANCSHARES COM 743606105 63,105 -2,897 -4.39 4,313 -10.03 0.0412
2018-08-14 2018-06-30 13F PROSPERITY BANCSHARES COM 743606105 63,105 4,313
2018-05-10 2018-03-31 13F PROSPERITY BANCSHARES COM 743606105 66,002 24,053 57.34 4,794 63.12 0.0473
2018-02-14 2017-12-31 13F PROSPERITY BANCSHARES COM 743606105 41,949 -28,891 -40.78 2,939 -36.85 0.0299
2017-11-14 2017-09-30 13F PROSPERITY BANCSHARES COM 743606105 70,840 -77,447 -52.23 4,654 -51.14 0.0492
2017-07-27 2017-06-30 13F PROSPERITY BANCSHARES COM 743606105 148,287 -45,689 -23.55 9,526 -29.56 0.1031
2017-05-12 2017-03-31 13F PROSPERITY BANCSHARES COM 743606105 193,976 -24,372 -11.16 13,523 -13.71 0.1498
2017-02-07 2016-12-31 13F PROSPERITY BANCSHARES COM 743606105 218,348 -25,770 -10.56 15,672 16.96 0.1884
2016-11-04 2016-09-30 13F PROSPERITY BANCSHARES COM 743606105 244,118 -6,004 -2.40 13,400 5.07 0.1736
2016-08-01 2016-06-30 13F PROSPERITY BANCSHARES COM 743606105 250,122 2,695 1.09 12,753 11.11 0.1763
2016-05-06 2016-03-31 13F PROSPERITY BANCSHARES COM 743606105 247,427 23,559 10.52 11,478 7.13 0.1718
2016-02-12 2015-12-31 13F PROSPERITY BANCSHARES COM 743606105 223,868 3,789 1.72 10,714 -0.87 0.1756
2015-11-12 2015-09-30 13F PROSPERITY BANCSHARES COM 743606105 220,079 220 0.10 10,808 -14.86 0.1875
2015-08-14 2015-06-30 13F PROSPERITY BANCSHARES COM 743606105 219,859 54,342 32.83 12,695 46.15 0.2156
2015-05-15 2015-03-31 13F PROSPERITY BANCSHARES COM 743606105 165,517 -1,604 -0.96 8,686 -6.12 0.1525
2015-02-05 2014-12-31 13F PROSPERITY BANCSHARES COM 743606105 167,121 -43,605 -20.69 9,252 -23.20 0.1732
2014-11-03 2014-09-30 13F PROSPERITY BANCSHARES COM 743606105 210,726 -210,446 -49.97 12,047 -54.31 0.2417
2014-08-13 2014-06-30 13F PROSPERITY BANCSHARES COM 743606105 421,172 -16,437 -3.76 26,366 -8.92 0.3778
2014-05-13 2014-03-31 13F PROSPERITY BANCSHARES COM 743606105 437,609 24,359 5.89 28,948 10.51 0.4455
2014-02-12 2013-12-31 13F PROSPERITY BANCSHARES COM 743606105 413,250 -11,768 -2.77 26,196 -0.33 0.4288
2013-10-30 2013-09-30 13F PROSPERITY BANCSHARES COM 743606105 425,018 -7,882 -1.82 26,282 17.23 0.4840
2013-07-19 2013-06-30 13F PROSPERITY BANCSHARES COM 743606105 432,900 432,900 22,420 0.4467
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.