Prosperity Bancshares, Inc.
US ˙ NYSE ˙ US7436061052

SecurityPB / Prosperity Bancshares, Inc.
InstitutionLazard Asset Management Llc
Latest Disclosed Ownership14,106 shares
Latest Disclosed Value $ 947,641
Lazard Asset Management Llc reports 127.15% increase in ownership of PB / Prosperity Bancshares, Inc.

On May 15, 2026 - Lazard Asset Management Llc filed a 13F-HR form disclosing ownership of 14,106 shares of Prosperity Bancshares, Inc. (US:PB) valued at $947,641 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 6,210 shares of Prosperity Bancshares, Inc.. This represents a change in shares of 127.15% during the quarter. The current value of the position is $978,392 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 14,106 7,896 127.15 948 120.75 0.0008
2026-02-17 2025-12-31 13F PROSPERITY BANCSHARES COM 743606105 6,210 0 0.00 429 4.13 0.0007
2025-11-14 2025-09-30 13F PROSPERITY BANCSHARES COM 743606105 6,210 0 0.00 412 0.0006
2025-08-14 2025-06-30 13F PROSPERITY BANC Common Stock 743606105 6,210 397 6.83 0 0.0006
2025-05-15 2025-03-31 13F PROSPERITY BANC Common Stock 743606105 5,813 2,210 61.34 0 0.0006
2025-02-14 2024-12-31 13F PROSPERITY BANC Common Stock 743606105 3,603 3,603 0 0.0004
2022-05-13 2022-03-31 13F PROSPERITY BANC Common Stock 743606105 0 -130,798 -100.00 0 -100.00
2022-02-09 2021-12-31 13F PROSPERITY BANC Common Stock 743606105 130,798 -1,943 -1.46 9,456 0.16 0.0101
2021-11-15 2021-09-30 13F PROSPERITY BANC Common Stock 743606105 132,741 -3,365 -2.47 9,441 -3.39 0.0107
2021-08-12 2021-06-30 13F PROSPERITY BANC Common Stock 743606105 136,106 12,025 9.69 9,772 5.17 0.0110
2021-05-14 2021-03-31 13F PROSPERITY BANC Common Stock 743606105 124,081 124,081 9,292 0.0113
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.