William Hartzel serves as Executive at Emergent BioSolutions Inc., where they oversee executive responsibilities. Since joining the company, William Hartzel has executed 9 insider transactions totaling $0, demonstrating a balanced approach to their equity position. Their most recent transaction on Feb 6, 2026 involved selling 630 shares valued at $6.9K.
William Hartzel currently holds 96,681 shares of Emergent BioSolutions Inc. (EBS), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, William Hartzel has been a net neutral trader of EBS stock. They have purchased $0 and sold $0 worth of shares.
William Hartzel's most recent insider trade was on Feb 6, 2026, when they sold 630 shares at $10.92 per share.
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| $10.92 |
| Discretionary |
| Nov 11, 2025 | EBS | $6.6K | Payment | 610 | $10.88 | Discretionary |
| Jul 11, 2025 | EBS | $31.4K | Payment | 4,263 | $7.36 | Discretionary |
| Jul 11, 2024 | EBS | $0 | Award | 15,000 | $N/A | Discretionary |
| Jun 8, 2024 | EBS | $7.2K | Payment | 1,167 | $6.19 | Discretionary |
| Apr 7, 2024 | EBS | $1.5K | Payment | 665 | $2.29 | Discretionary |
| Mar 5, 2024 | EBS | $1.2K | Payment | 346 | $3.41 | Discretionary |
| Nov 11, 2023 | EBS | $1.3K | Payment | 632 | $2.00 | Discretionary |