STEPHEN K. WEST

Corporate Board Profile

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PIONEER HIGH INCOME FUND, INC.

Filing Date Source Excerpt
2003-09-17 Senior Counsel, Sullivan & Cromwell (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company) and AMVESCAP PLC (investment managers)
2004-10-06 Senior Counsel, Sullivan & Cromwell (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company) and AMVESCAP PLC (investment managers)
2005-07-11 Senior Counsel, Sullivan & Cromwell (law firm)
2006-08-08 Senior Counsel, Sullivan & Cromwell (law firm)
2007-08-02 Senior Counsel, Sullivan & Cromwell (law firm)
2008-07-30 Senior Counsel, Sullivan & Cromwell LLP (law firm)
2009-08-11 Senior Counsel, Sullivan & Cromwell LLP (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company)
2009-08-11 Senior Counsel, Sullivan & Cromwell LLP (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company)
2010-07-30 Senior Counsel, Sullivan & Cromwell LLP (law firm) (1998-present); Partner, Sullivan & Cromwell LLP (prior to 1998)
2011-07-22 Senior Counsel, Sullivan & Cromwell LLP (law firm) (1998-present); Partner, Sullivan & Cromwell LLP (prior to 1998)
2012-07-30 Senior Counsel, Sullivan & Cromwell LLP (law firm) (1998-present); Partner, Sullivan & Cromwell LLP (prior to 1998)

PIONEER MUNICIPAL HIGH INCOME ADVANTAGE FUND, INC.

Filing Date Source Excerpt
2004-10-06 Senior Counsel, Sullivan & Cromwell (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company) and AMVESCAP PLC (investment managers)
2005-07-11 Senior Counsel, Sullivan & Cromwell (law firm)
2006-08-08 Senior Counsel, Sullivan & Cromwell (law firm)
2007-08-02 Senior Counsel, Sullivan & Cromwell (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company)
2008-07-30 Senior Counsel, Sullivan & Cromwell LLP (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company)
2009-08-11 Senior Counsel, Sullivan & Cromwell LLP (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company)
2009-08-11 Senior Counsel, Sullivan & Cromwell LLP (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company)
2010-07-30 Senior Counsel, Sullivan & Cromwell LLP (law firm) (1998-present); Partner, Sullivan & Cromwell LLP (prior to 1998)
2011-07-22 Senior Counsel, Sullivan & Cromwell LLP (law firm) (1998-present); Partner, Sullivan & Cromwell LLP (prior to 1998)
2012-07-30 Senior Counsel, Sullivan & Cromwell LLP (law firm) (1998-present); Partner, Sullivan & Cromwell LLP (prior to 1998)

PIONEER MUNICIPAL HIGH INCOME FUND, INC.

Filing Date Source Excerpt
2004-10-06 Senior Counsel, Sullivan & Cromwell (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company) and AMVESCAP PLC (investment managers)
2005-07-11 Senior Counsel, Sullivan & Cromwell (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company) and AMVESCAP PLC (investment managers)
2006-08-08 Senior Counsel, Sullivan & Cromwell (law firm)
2007-08-02 Senior Counsel, Sullivan & Cromwell (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company)
2008-07-30 Senior Counsel, Sullivan & Cromwell LLP (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company)
2009-08-11 Senior Counsel, Sullivan & Cromwell LLP (law firm); Director, The Swiss Helvetia Fund, Inc. (closed-end investment company)
2009-08-11 Senior Counsel, Sullivan & Cromwell LLP (law firm)
2010-07-30 Senior Counsel, Sullivan & Cromwell LLP (law firm); Partner, Sullivan & Cromwell LLP.
2011-07-22 Senior Counsel, Sullivan & Cromwell LLP (law firm) (1998-present); Partner, Sullivan & Cromwell LLP (prior to 1998)
2012-07-30 Senior Counsel, Sullivan & Cromwell LLP (law firm) (1998-present)

Data sourced from SEC filings. Last updated: 2026-02-03