PB SEC Filing News — Prosperity Bancshares, Inc.

Latest SEC filings for Prosperity Bancshares, Inc. (PB) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-14.

Prosperity Bancshares, Inc. operates as bank holding company for the Prosperity Bank that provides financial products and services to businesses and consumers. It accepts various deposit products, such as demand, savings, money market, and time accounts; and certificates of deposit. The company also offers 1-4 family residential mortgage, commercial real estate and multifamily residential, commercial and industrial, and agricultural and non-real estate agricultural loans; construction, land deve…
Sector: Financial Services Industry: Banks - Regional Market Cap: $8.1B CIK: 1068851
20
Total Filings
0
Bullish Classifications
15
Bearish Classifications
16
Insider Transactions
2
Material Events (8-K)
1
Periodic Reports
Rule-based classifications for PB currently lean bearish. Of the 20 filing records displayed, 15 carry bearish classifications (such as insider sales or negative 8-K disclosures) versus 0 bullish. This does not necessarily signal fundamental deterioration — insiders sell for many reasons — but it is worth monitoring alongside the company's core financial metrics.
PB Filing Activity Snapshot 2026-07-08 — 2026-10-14
Insider Transactions (Form 4)
0 buys vs 15 sells
Net insider selling in this period — insiders sell for many reasons beyond conviction.
Largest Form 144 Filing
$625.6K
HOLMES NED S · 2026-09-16
8,800 shares · Form 144
Form 144 Notices
1
Proposed insider sale filed — Form 144 is a notice of intent, not a confirmed transaction. Actual sales are confirmed via Form 4.
Insider Transactions 16 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 16 filings in this group are Form 4s for Prosperity Bancshares, Inc.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 16 insider filings shown, the breakdown is 15 open-market sale and 1 compensation award. 15 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Open-market sale ×15
The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.
Compensation award ×1
Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Form 4 Open-market sale Insider Selling 2026-10-14

PB insider HOLMES NED S (Director) sold 1,100 shares (~$72.8K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 500 $66.22 $33.1K
S Open-market sale 452 $66.19 $29.9K
S Open-market sale 48 $66.62 $3.2K
S Open-market sale 100 $66.22 $6.6K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $72.8K
Form 4 Open-market sale Insider Selling 2026-10-08

PB insider HOLMES NED S (Director) sold 1,100 shares (~$72.4K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 500 $65.78 $32.9K
S Open-market sale 500 $65.78 $32.9K
S Open-market sale 100 $65.81 $6.6K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $72.4K
Form 4 Open-market sale Insider Selling 2026-10-01

PB insider HOLMES NED S (Director) sold 1,100 shares (~$73.2K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 48 $66.02 $3.2K
S Open-market sale 452 $66.67 $30.1K
S Open-market sale 79 $66.10 $5.2K
S Open-market sale 421 $66.66 $28.1K
S Open-market sale 100 $66.50 $6.7K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $73.2K
Form 4 Open-market sale Insider Selling 2026-09-23

PB insider HOLMES NED S (Director) sold 1,100 shares (~$75.3K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 96 $67.76 $6.5K
S Open-market sale 404 $68.67 $27.7K
S Open-market sale 89 $67.69 $6.0K
S Open-market sale 411 $68.61 $28.2K
S Open-market sale 18 $67.69 $1.2K
S Open-market sale 82 $68.56 $5.6K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $75.3K
Form 4 Open-market sale Insider Selling 2026-09-18

PB insider HOLMES NED S (Director) sold 1,100 shares (~$78.0K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 28 $69.89 $2.0K
S Open-market sale 472 $71.01 $33.5K
S Open-market sale 45 $69.89 $3.1K
S Open-market sale 455 $71.03 $32.3K
S Open-market sale 8 $69.89 $559.12
S Open-market sale 92 $71.03 $6.5K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $78.0K
Form 4 Open-market sale Insider Selling 2026-09-09

PB insider HOLMES NED S (Director) sold 1,100 shares (~$78.6K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 500 $71.42 $35.7K
S Open-market sale 500 $71.43 $35.7K
S Open-market sale 100 $71.42 $7.1K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $78.6K
Form 4 Open-market sale Insider Selling 2026-09-03

PB insider HOLMES NED S (Director) sold 1,100 shares (~$78.9K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 270 $71.53 $19.3K
S Open-market sale 230 $72.08 $16.6K
S Open-market sale 290 $71.51 $20.7K
S Open-market sale 210 $72.01 $15.1K
S Open-market sale 46 $71.59 $3.3K
S Open-market sale 54 $72.09 $3.9K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $78.9K
Form 4 Open-market sale Insider Selling 2026-08-26

PB insider HOLMES NED S (Director) sold 1,100 shares (~$80.5K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 500 $73.19 $36.6K
S Open-market sale 500 $73.19 $36.6K
S Open-market sale 5 $72.26 $361.30
S Open-market sale 95 $73.22 $7.0K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $80.5K
Form 4 Open-market sale Insider Selling 2026-08-19

PB insider HOLMES NED S (Director) sold 1,100 shares (~$81.0K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 387 $73.47 $28.4K
S Open-market sale 113 $74.25 $8.4K
S Open-market sale 365 $73.50 $26.8K
S Open-market sale 135 $74.21 $10.0K
S Open-market sale 77 $73.41 $5.7K
S Open-market sale 23 $74.20 $1.7K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $81.0K
Form 4 Open-market sale Insider Selling 2026-08-13

PB insider HOLMES NED S (Director) sold 1,100 shares (~$81.6K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 500 $74.14 $37.1K
S Open-market sale 500 $74.13 $37.1K
S Open-market sale 100 $74.16 $7.4K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $81.6K
Form 4 Open-market sale Insider Selling 2026-08-05

PB insider HOLMES NED S (Director) sold 1,100 shares (~$82.1K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 500 $74.62 $37.3K
S Open-market sale 500 $74.60 $37.3K
S Open-market sale 100 $74.64 $7.5K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $82.1K
Form 4 Open-market sale Insider Selling 2026-07-30

PB insider HOLMES NED S (Director) sold 1,100 shares (~$81.7K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 1 $72.90 $72.90
S Open-market sale 499 $74.26 $37.1K
S Open-market sale 1 $72.90 $72.90
S Open-market sale 499 $74.27 $37.1K
S Open-market sale 5 $72.84 $364.20
S Open-market sale 95 $74.31 $7.1K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $81.7K
Form 4 Open-market sale Insider Selling 2026-07-22

PB insider HOLMES NED S (Director) sold 1,100 shares (~$80.3K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 500 $72.97 $36.5K
S Open-market sale 500 $72.98 $36.5K
S Open-market sale 100 $73.01 $7.3K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $80.3K
Form 4 Open-market sale Insider Selling 2026-07-15

PB insider HOLMES NED S (Director) sold 1,100 shares (~$80.4K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 500 $73.02 $36.5K
S Open-market sale 500 $73.09 $36.5K
S Open-market sale 5 $72.14 $360.72
S Open-market sale 95 $73.11 $6.9K
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $80.4K
Form 4 Open-market sale Insider Selling 2026-07-09

PB insider HOLMES NED S (Director) sold 1,100 shares (~$77.6K)

HOLMES NED S, listed as Director at PROSPERITY BANCSHARES INC, reported an open-market sale of 1,100 PB shares in a Form 4 filing. This is a confirmed insider sale, not just a proposed sale notice.

The insider sold shares on the open market. Sales may be discretionary or executed automatically under a pre-arranged Rule 10b5-1 trading plan, and a Form 4 does not always make clear which applies.

Transactions reported on this filing
Code Nature Shares Price Value
S Open-market sale 499 $70.55 $35.2K
S Open-market sale 1 $71.74 $71.74
S Open-market sale 499 $70.60 $35.2K
S Open-market sale 1 $71.74 $71.74
S Open-market sale 95 $70.55 $6.7K
S Open-market sale 5 $71.76 $358.82
Filing: Form 4 (Insider Transaction) Insider: HOLMES NED S (Director) Shares: 1,100 Est. Value: $77.6K
Form 4 Compensation award Tax / Compensation Filing 2026-07-08

PB insider Form 4 filed for equity award, exercise, or tax withholding

Franklin Robert R Jr (Director, Vice Chairman) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code Nature Shares Price Value
A Compensation award 25,000 — —
Filing: Form 4 (Insider Transaction) Insider: Franklin Robert R Jr (Director, Vice Chairman) Shares: 25,000
Proposed Insider Sales 1 · Form 144

A Form 144 is a notice of intent to sell restricted or control securities. It is not a record that anything was sold. Prosperity Bancshares, Inc. has 1 such notice in this period.

The distinction matters because a Form 144 is frequently reported as though it were a completed insider sale. The filer may sell all of the shares covered, some of them, or none at all, and there is no obligation to update the notice either way. A sale that is actually executed by an officer or director shows up separately on a Form 4, which is the filing to check before treating a proposed sale as a real one.

Form 144 Proposed Insider Sale 2026-09-16

PB Form 144 filed for proposed insider sale by HOLMES NED S (8,800 shares) ~$625.6K

HOLMES NED S filed a Form 144 with the SEC indicating intent to sell PB (PROSPERITY BANCSHARES INC) shares. Form 144 reflects a proposed sale, not a completed transaction. The actual execution, if any, would typically appear later in a Form 4.

Filing: Form 144 (Proposed Sale Notice) Insider: HOLMES NED S Shares: 8,800 Est. Value: $625.6K
Material Events 2 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 2 in this period for Prosperity Bancshares, Inc. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K/A Amended Material Company Update 2026-08-31

PB filed amended 8-K — material company event

PROSPERITY BANCSHARES INC filed an amended 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K/A (Material Event Amendment)
Form 8-K Material Company Update 2026-07-29

PB filed 8-K — material company event

PROSPERITY BANCSHARES INC filed an 8-K with the SEC reporting a material event. Summary unavailable — view the original SEC filing for the full text.

Filing: 8-K (Material Event)
Periodic Reports 1 · Forms 10-K and 10-Q

The periodic reports are where the audited and reviewed financial statements live. This period contains 1 quarterly report (10-Q) for Prosperity Bancshares, Inc.

The two are not equivalent in weight. A 10-K is audited by an external firm and includes the full risk factor disclosure, business description and management discussion; a 10-Q is unaudited, reviewed rather than examined, and much shorter. When a figure in a quarterly report is later revised, the annual report is usually where the correction appears.

An amended report — 10-K/A or 10-Q/A — restates or corrects something in the original filing, and is worth reading against the version it replaces.

Form 10-Q Quarterly Report 2026-08-06

PB filed Quarterly Report (10-Q)

PROSPERITY BANCSHARES INC filed its quarterly report with the SEC. This report includes unaudited financial statements and management discussion for the quarter.

Filing: 10-Q (Quarterly Report)

How we classify Prosperity Bancshares, Inc.'s filings

Straight from EDGAR

Each displayed record links to an original source document. StrongBuyAnalytics provides navigation and brief excerpts or summaries, not the filing itself. Parsing may omit context or contain errors, so read the original document in full.

Transaction codes, not guesswork

The nature shown on each insider filing comes from the transaction code the filer entered on the form itself — P for an open-market purchase, A for a compensation award, F for shares withheld to pay tax, M for an option exercise. Where one filing contains several codes, the transaction table lists them line by line.

Why the distinction matters

Insider activity is routinely summarised as buying or selling, which flattens together decisions that mean very different things. Shares withheld for tax on a vesting grant are an automatic administrative step; shares bought on the open market are someone committing their own money at the current price.

What this page does not tell you

A filing records what happened, not why. Form 4 does not always disclose whether a sale was executed under a pre-arranged Rule 10b5-1 plan, and no single filing is a basis for a decision on PB. Read these alongside the fundamentals rather than in isolation.

Frequently Asked Questions — PB SEC Filings

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Publisher, sources & limitations — September 15, 2026. StrongBuyAnalytics provides navigation and brief excerpts or summaries for educational use. Original filings remain at SEC EDGAR or other displayed source links; StrongBuyAnalytics does not author them. Filing dates are source dates, not publication dates for this page. Coverage can be delayed, incomplete, amended, or unavailable because of SEC/source availability, parsing, caching, or outages. Verify every material statement in the original filing.
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