Stellar Bancorp, Inc. SEC filings document the reporting obligations of a bank holding company whose common stock trades under STEL. The filing record includes Form 8-K material-event reports covering operating and financial results, dividend declarations, subordinated note redemptions, material definitive agreements and capital-structure disclosures.
The company's regulatory documents also address shareholder communications and voting matters, governance actions and exchange-listed common stock information. For Stellar Bank's holding company, these disclosures frame commercial banking performance, balance-sheet actions and formal corporate events.
Prosperity Bancshares is acquiring Stellar Bancorp in a cash-and-stock merger that values Stellar at approximately $2.002 billion, based on Prosperity’s $72.90 closing share price on January 27, 2026. Each Stellar share will be exchanged for 0.3803 Prosperity shares plus $11.36 in cash.
Stellar reported as of December 31, 2025 total assets of $10.807 billion, loans of $7.301 billion and deposits of $9.021 billion, with 52 branches across Houston, Beaumont, Dallas and nearby markets. Prosperity reported $38.463 billion in assets and 301 locations across Texas and Oklahoma.
The companies state that the deal will create the second-largest bank by deposits headquartered in Texas, with over 330 banking centers and a strengthened Houston and Beaumont presence. On a pro forma basis, management projects 2027 earnings per share for Prosperity of $7.34 versus standalone $6.72, implying 9.2% EPS accretion, supported by cost savings, interest rate marks and amortization adjustments.
The merger and subsequent bank merger have been unanimously approved by both boards and are expected to close in the second quarter of 2026, subject to Stellar shareholder approval, regulatory approvals and other customary conditions. The companies highlight typical integration, approval, cost, dilution and market risks and provide extensive forward‑looking statement and proxy-related disclosures.
Stellar Bancorp, Inc. reported an insider stock transaction by its Senior Executive VP and Chief Credit Officer. On 12/31/2025, the executive had 315 shares of common stock withheld in a transaction coded “F” at a price of $30.94 per share. This code indicates shares were used to cover tax obligations tied to previously reported restricted stock that vested.
After this tax-withholding event, the officer directly beneficially owned 96,829 shares of Stellar Bancorp common stock. The filing characterizes this as a routine adjustment related to equity compensation rather than an open-market sale.
Stellar Bancorp, Inc. reported a routine insider ownership update for its President. On 12/31/2025, 595 shares of common stock were disposed of at $30.94 per share in a transaction coded "F," which indicates shares were withheld to cover taxes on the vesting of previously granted restricted stock. Following this tax-withholding event, the officer directly beneficially owned 109,651 shares of Stellar Bancorp common stock.
Stellar Bancorp, Inc. Executive Chairman and director reported a routine insider transaction involving company common stock. On 12/31/2025, 1,323 shares of common stock were withheld at a price of $30.94 per share, identified with transaction code "F" as shares withheld to satisfy tax liability for the vesting of previously reported restricted shares of common stock.
After this tax withholding, the reporting person beneficially owns 124,880 shares directly. In addition, the filing reports indirect ownership of 12,598 shares through SF Retzloff Family Limited Partnership, LTD., 378,240 shares through Retzloff Holdings, LTD., and 25,531 shares through Retzloff Industries, Inc.
Stellar Bancorp, Inc. reported an insider equity transaction by its Senior Executive Vice President, General Counsel and Secretary. On 12/31/2025, the officer had 374 shares of common stock withheld at $30.94 per share, coded as transaction type F, which indicates shares were withheld to cover taxes.
After this tax-related withholding tied to the vesting of previously reported restricted shares, the officer beneficially owned 47,489 shares of Stellar Bancorp common stock in direct ownership. The filing clarifies this was not an open-market sale but a share withholding to satisfy tax liability upon vesting.
Stellar Bancorp, Inc. disclosed that its Chief Executive Officer and director reported a routine share withholding transaction involving company common stock. On 12/31/2025, 2,617 shares of common stock were withheld at a price of $30.94 per share, designated with transaction code "F," which indicates shares withheld for tax purposes. After this tax withholding related to the vesting of previously reported restricted shares, the reporting person directly beneficially owned 396,285 shares of Stellar Bancorp common stock.
Stellar Bancorp, Inc. reported an insider transaction by its Senior Executive VP and CFO on 12/31/2025. The filing shows that 446 shares of common stock were disposed of at $30.94 per share, but the explanation clarifies these shares were withheld to satisfy tax liabilities related to the vesting of previously reported restricted shares, rather than an open-market sale.
Following this tax withholding transaction, the reporting officer beneficially owns 61,029 shares of Stellar Bancorp common stock, held directly.
Stellar Bancorp, Inc. reported an insider transaction by a Senior Executive Vice President and Chief Risk Officer. On 12/31/2025, the officer had 276 shares of common stock withheld in a transaction coded “F,” meaning the shares were surrendered to cover tax obligations related to previously reported restricted stock that vested.
Following this tax-withholding transaction at a reported price of $30.94 per share, the officer directly beneficially owned 81,224 shares of Stellar Bancorp common stock. The filing indicates the form was submitted for one reporting person and characterizes this as a routine equity compensation and tax-settlement event rather than an open-market trade.
Stellar Bancorp, Inc. filed an ownership report for one of its officers. The reporting person serves as Chief Banking Officer and is filing individually. The report shows beneficial ownership of 31,586 shares of Common Stock, held directly. It also lists 30,000 Employee Stock Options (right to buy), also held directly. This filing is an administrative disclosure of insider holdings required under securities laws.
Stellar Bancorp, Inc. director reported several small stock gifts under a Form 4 filing. On 12/09/2025, the insider made three transactions in Stellar Bancorp common stock coded "G," which indicates gifts. These included transfers of 630, 315, and 155 shares, each at a price of $0, reflecting that they were not market sales but no-consideration gifts. After these transactions, the director directly beneficially owned 29,136 shares of Stellar Bancorp common stock. No derivative securities were reported.