William Siffermann
About William Siffermann
William A. Siffermann (born 1975) serves as a Vice President for the Nuveen closed-end funds, including Nuveen Select Maturities Municipal Fund (NIM). He has served in officer roles since 2017 and his principal occupation over the past five years is Senior Managing Director at Nuveen. Officers of the funds receive no compensation from the Funds; officer compensation is paid by the Adviser (Nuveen Fund Advisors, LLC), with an allocable portion of the CCO’s incentive compensation reimbursed by the Funds. He is identified as the Manager of Fund Board Relations for shareholder communications and board nomination correspondence.
Past Roles
| Organization | Role | Years | Strategic Impact |
|---|---|---|---|
| Nuveen | Senior Managing Director | Past 5 years (current) | Executive role at the Adviser supporting fund operations |
| Nuveen Funds (including NIM) | Vice President (Fund Officer) | 2017–present | Officer role for the Funds; no fund-paid compensation |
| Nuveen | Manager of Fund Board Relations | As of 2025 | Shareholder communications and board nomination point-of-contact |
External Roles
No external roles for Siffermann are disclosed in the NIM joint proxy officer table.
Fixed Compensation
| Component | Amount | Source/Notes |
|---|---|---|
| Fund-paid officer compensation (NIM) | $0 | Officers receive no compensation from the Funds. |
| Adviser-paid officer compensation | Not disclosed in fund proxy | Compensation is paid by the Adviser; Funds reimburse an allocable portion of the CCO’s incentive compensation. |
Equity Ownership & Alignment
| Metric | Value | As-of Date | Source |
|---|---|---|---|
| NIM common shares outstanding | 12,446,597 | June 20, 2025 | |
| Board Members and Officers as a group – NIM shares owned | 0 | May 31, 2025 | |
| Board Members and executive officers as a group – ownership in each Fund | <1% of outstanding shares (each Fund) | June 20, 2025 |
- Stock pledging or hedging by officers is not discussed in the proxy; no pledging disclosures for Siffermann are provided.
- Board Member ownership guideline: expected to invest at least the equivalent of one year of compensation across funds in the Fund Complex (applies to Board Members; officer-specific guidelines are not described).
Employment Terms
| Item | Detail | Source |
|---|---|---|
| Position | Vice President (Fund Officer) | |
| Term of Office | Indefinite | |
| Length of Time Served | Since 2017 | |
| Principal Occupation (past 5 years) | Senior Managing Director, Nuveen | |
| Manager of Fund Board Relations | Listed contact for shareholder communications and nominations |
- Non-compete, non-solicit, severance, and change-of-control provisions for Siffermann are not disclosed in the NIM proxy; the Funds have no employees and officers serve without fund-paid compensation.
Board Governance (Context)
- Shareholder communications to the Board are directed to William Siffermann, Manager of Fund Board Relations, at Nuveen, 333 West Wacker Drive, Chicago, IL 60606.
- The Nominating and Governance Committee manages director nominations and governance processes; Siffermann is the designated contact for nomination suggestions.
Investment Implications
- Pay-for-performance analysis is constrained: officers receive no compensation from the Funds and adviser-paid compensation components (base salary, bonus, equity, vesting, and performance metrics) are not disclosed in fund proxies, limiting visibility into incentives and alignment.
- Ownership alignment at NIM appears limited: Board Members and officers as a group reported 0 shares of NIM, although the group owns less than 1% across each Fund and Board Members are expected to invest at least one year of compensation across the Fund Complex; Siffermann’s individual holdings are not enumerated.
- Tenure and continuity: Siffermann’s service since 2017 and indefinite term support operational continuity in fund governance and board relations.
- Trading signals: Section 16(a) compliance is affirmed, but the proxy does not enumerate Form 4 transactions; without adviser-level compensation and insider transaction detail in the proxy, there are no identifiable selling pressure or vesting catalysts from fund disclosures alone.
- Governance influence: As Manager of Fund Board Relations, Siffermann is a critical conduit for shareholder communications and director nominations—an operationally important role for governance processes that may shape board composition and oversight, though not directly tied to compensation outcomes.