William E. Siwek

Companies

• TPI COMPOSITES, INCChief executive officer May 22, 2020 to now¹
• TPI COMPOSITES, INCPresident May 16, 2019 to Jul 12, 2021²
• TPI COMPOSITES, INCChief financial officer Jul 21, 2016 to Mar 8, 2019³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• TCTPI COMPOSITES, INC268,785 shares⁴Mar 21, 2025

As of each latest filing. The line shows shares held over time.

Recent filings

• Mar 21, 2025Shares withheld for tax 3,352 shares at $0.84 of TPI COMPOSITES, INC⁴
• Mar 21, 2025Exercised options 12,034 shares of TPI COMPOSITES, INC⁴
• Mar 18, 2025Shares withheld for tax 4,842 shares at $1.04 of TPI COMPOSITES, INC⁵
• Mar 18, 2025Exercised options 17,385 shares of TPI COMPOSITES, INC⁵
• Mar 10, 2025Shares withheld for tax 9,156 shares at $1.02 of TPI COMPOSITES, INC⁶
• Mar 10, 2025Exercised options 32,875 shares of TPI COMPOSITES, INC⁶
• Feb 21, 2025Shares withheld for tax 2,725 shares at $1.46 of TPI COMPOSITES, INC⁷
• Feb 21, 2025Granted 8,219 shares of TPI COMPOSITES, INC⁷
• Nov 13, 2024Bought 10,000 shares at $2.19 of TPI COMPOSITES, INC⁸
• Mar 21, 2024Shares withheld for tax 5,157 shares at $2.88 of TPI COMPOSITES, INC⁹
• Mar 21, 2024Exercised options 12,034 shares of TPI COMPOSITES, INC⁹
• Mar 11, 2024Shares withheld for tax 6,346 shares at $3.15 of TPI COMPOSITES, INC¹⁰
• Mar 11, 2024Exercised options 14,809 shares of TPI COMPOSITES, INC¹⁰
• Aug 18, 2023Bought 10,000 shares at $4.90 of TPI COMPOSITES, INC¹¹
• Mar 13, 2023Shares withheld for tax 20,390 shares at $12.90 of TPI COMPOSITES, INC¹²
• Mar 11, 2023Exercised options 47,583 shares of TPI COMPOSITES, INC¹²
• Dec 31, 2022Shares withheld for tax 20,159 shares at $10.14 of TPI COMPOSITES, INC¹³
• Dec 31, 2022Exercised options 47,938 shares of TPI COMPOSITES, INC¹³
• May 16, 2022Shares withheld for tax 1,911 shares at $12.07 of TPI COMPOSITES, INC¹⁴
• May 16, 2022Exercised options 4,543 shares of TPI COMPOSITES, INC¹⁴
• Mar 7, 2022Shares withheld for tax 3,924 shares at $12.73 of TPI COMPOSITES, INC¹⁵
• Mar 7, 2022Exercised options 9,330 shares of TPI COMPOSITES, INC¹⁵
• Dec 31, 2021Shares withheld for tax 10,652 shares at $14.96 of TPI COMPOSITES, INC¹⁶
• Dec 31, 2021Exercised options 23,963 shares of TPI COMPOSITES, INC¹⁶
• Dec 15, 2021Bought 1,340 shares at $14.68 of TPI COMPOSITES, INC¹⁷