Bank of Marin Bancorp Executive Vice President Increases ESOP Holdings Through Dividend Reinvestment

ESOP Allocation and Ownership Structure at Bank of Marin

The disclosure outlines Sathis Arasadi's beneficial ownership activities exclusively within Bank of Marin Bancorp's Employee Stock Ownership Plan. According to the filing, Arasadi holds all reported securities indirectly through the ESOP rather than in direct personal ownership. This structure is common among financial institutions that utilize employee benefit plans as a component of their overall compensation philosophy. The ESOP represents a mechanism through which eligible employees accumulate equity stakes in their employer corporation over time.

The filing indicates that Arasadi's ESOP holdings have grown substantially since the initial 2024 allocation. His total beneficial ownership in Bank of Marin common stock now stands at 2,086.0508 shares following the completion of all reported transactions. This accumulation reflects both the company's regular ESOP allocations to participants and the reinvestment of dividends paid on existing ESOP holdings, both of which are standard features in many employee equity plans.

December 2024 ESOP Allocation and Initial Ownership Position

The earliest transaction identified in the filing occurred on December 31, 2024, when Arasadi received an allocation of 770.54 ESOP shares. This transaction, identified as the 2024 ESOP allocation in the explanatory notes section of the filing, was posted to Arasadi's ESOP account on that date at zero dollar consideration. Following this initial allocation, Arasadi's beneficially owned stake in Bank of Marin common stock totaled 1,174.7608 shares held indirectly through the ESOP.

The timing and structure of this allocation align with standard year-end ESOP distribution practices commonly observed in corporate benefit programs. The zero-dollar acquisition price reflects the nature of ESOP allocations, which are employer contributions to the plan rather than employee purchases. This mechanism allows employees to build equity positions in their company without requiring out-of-pocket investment.

2025 ESOP Growth Through Allocations and Dividend Reinvestment

Bank of Marin Bancorp's 2025 ESOP allocation was credited to Arasadi's account on December 31, 2025, adding 838.32 shares to his holdings. The filing explains that this represents the standard 2025 ESOP allocation distributed to eligible plan participants. Following this transaction, Arasadi's total beneficial ownership increased to 2,013.0808 shares held through the ESOP structure.

Beyond the base allocation, the filing reveals that dividend reinvestment activity also contributed to Arasadi's growing stake during 2025. An additional 41.91 shares resulted from dividend reinvestment within the ESOP during the year, bringing his total beneficial ownership to 2,054.9908 shares. These dividend reinvestment shares indicate that distributions paid on existing ESOP holdings were used to purchase additional Bank of Marin common stock, a compounding mechanism that increases participant ownership over time without requiring additional cash contributions.

2026 Dividend Reinvestment Activity and Current Holdings

The most recent transaction reported in the filing occurred on May 14, 2026, when an additional 31.06 shares were added to Arasadi's ESOP account. According to the explanatory notes, these shares resulted from dividend reinvestment activity in February and May 2026. This mid-year reinvestment activity demonstrates the ongoing nature of dividend distributions and reinvestment within the ESOP during the first half of 2026.

Following the May 2026 dividend reinvestment, Arasadi's total beneficial ownership in Bank of Marin Bancorp common stock reached 2,086.0508 shares held indirectly through the ESOP. All of the reported holdings remain classified as indirect beneficial ownership under the ESOP structure, with no direct personal holdings of Bank of Marin securities reported in the disclosure.

Reporting Person's Role and Section 16 Obligations

Sathis Arasadi's position as Executive Vice President at Bank of Marin Bancorp places him within the category of officers subject to Section 16 reporting requirements under securities law. The disclosure identifies him as an officer of the issuer, which triggers mandatory reporting of changes in beneficial ownership of Bank of Marin securities. This reporting obligation applies to transactions occurring on or after December 31, 2024, the earliest transaction date identified in the filing.

The filing was signed by Krissy Meyer, identified as Attorney-in-Fact for Arasadi, on July 28, 2026. This authorization mechanism allows designated representatives to file required disclosure documents on behalf of reporting persons. The Form 4 structure requires officers and significant shareholders to publicly disclose changes in their ownership positions within two business days of the transaction, ensuring transparency regarding insider holdings and transactions.

Transaction Codes and Securities Ownership Mechanics

The filing employs standardized SEC transaction codes to classify the nature of each ownership change. The transactions reported use code "J," which according to SEC instructions indicates "other acquisitions or dispositions not otherwise categorized." This coding is appropriate for ESOP allocations and dividend reinvestment transactions that fall outside standard purchase or sale mechanics. All reported transactions involved acquisitions (marked as "A" in the Amount column), with no dispositions or sales of Bank of Marin securities reported.

Each transaction reflects an acquisition of zero dollar consideration, which is standard for non-market ESOP transactions. The filing documents that Arasadi did not purchase these shares on the open market or through private transactions; rather, they were allocated to him through the ESOP mechanism as either employer contributions or the automatic reinvestment of dividend distributions. This distinction is important for understanding the nature of insider ownership changes versus trading activity.

No Derivative Securities or Option Activity Reported

The disclosure contains a Table II section addressing derivative securities, which includes instruments such as stock options, warrants, and convertible securities. However, Table II in this filing contains no entries, indicating that Arasadi holds no derivative securities in Bank of Marin Bancorp or that no changes to derivative holdings occurred during the reporting period. This contrasts with the common practice at many public companies where officers and executives hold stock option grants or other equity derivatives as part of their compensation packages.

The absence of derivative security holdings in this disclosure suggests that Arasadi's equity compensation at Bank of Marin is structured exclusively through direct common stock allocations via the ESOP rather than through option or warrant grants. This approach provides participants with immediate beneficial ownership rather than future conditional rights to purchase shares.

Bank of Marin Bancorp and ESOP Participation Context

Bank of Marin Bancorp, headquartered in Novato, California, operates as a community bank holding company serving the San Francisco Bay Area. The company's utilization of an ESOP as part of its compensation structure reflects a commitment to employee ownership and alignment of worker and shareholder interests. ESOPs are particularly common among financial institutions, where they serve as both an employee benefit and a capital planning tool.

The continuation of regular ESOP allocations and the reinvestment of dividends within the plan demonstrate that Bank of Marin maintains an active ESOP program as of 2026. The filing provides no information regarding the total size of the ESOP, the number of participants, or the percentage of company stock held by the plan, as such details typically appear in proxy statements or other periodic disclosures rather than Form 4 filings.

Investor Considerations and Transparency Implications

The disclosure of insider ownership changes serves as a transparency mechanism that allows investors to monitor the equity stakes held by company officers and directors. Regular ESOP allocations and dividend reinvestments, as reported in this filing, may indicate that management maintains long-term confidence in the company's prospects. However, the filing itself does not contain any commentary from Arasadi regarding his investment outlook or the rationale for his ESOP participation.

Investors monitoring Bank of Marin Bancorp should note that this disclosure represents a routine reporting of ESOP activity rather than a discretionary trading decision by the Executive Vice President. The acquisition of ESOP shares through allocations and dividend reinvestment differs fundamentally from open-market stock purchases, which might signal management's views on valuation. The immediate share price impact was not clear from available public information at the time of this filing.