William Hartzel

SVP, Bioservices, Emergent BioSolutions.

Companies

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

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

Jun 8, 2026Shares withheld for tax 1,741 shares at $8.00 of Emergent BioSolutions²
Apr 29, 2026Granted 100,111 shares of Emergent BioSolutions³
Mar 5, 2026Shares withheld for tax 9,493 shares at $8.44 of Emergent BioSolutions⁴
Feb 6, 2026Shares withheld for tax 630 shares at $10.92 of Emergent BioSolutions⁵
Feb 6, 2026Returned to company 5,771 shares at $10.92 of Emergent BioSolutions⁵
Nov 11, 2025Shares withheld for tax 610 shares at $10.88 of Emergent BioSolutions⁶
Jul 11, 2025Shares withheld for tax 4,263 shares at $7.36 of Emergent BioSolutions⁷
Jun 8, 2025Shares withheld for tax 1,167 shares at $6.63 of Emergent BioSolutions⁸
Apr 7, 2025Shares withheld for tax 561 shares at $4.44 of Emergent BioSolutions⁹
Mar 6, 2025Granted 62,500 shares of Emergent BioSolutions¹⁰
Mar 6, 2025Granted 62,500 shares of Emergent BioSolutions¹¹
Mar 5, 2025Shares withheld for tax 292 shares at $5.80 of Emergent BioSolutions¹²
Nov 11, 2024Shares withheld for tax 632 shares at $11.97 of Emergent BioSolutions¹³
Jul 11, 2024Granted 15,000 shares of Emergent BioSolutions¹⁴
Jun 8, 2024Shares withheld for tax 1,167 shares at $6.19 of Emergent BioSolutions¹⁵
Apr 7, 2024Shares withheld for tax 665 shares at $2.29 of Emergent BioSolutions¹⁶
Mar 5, 2024Shares withheld for tax 346 shares at $3.41 of Emergent BioSolutions¹⁷
Nov 11, 2023Shares withheld for tax 632 shares at $2.00 of Emergent BioSolutions¹⁸

The numbers on this page point here. Each one links to the record it came from.