William Hartzel
Insider
First SEC filing: Aug. 15, 2023 · Latest: June 10, 2026
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 8, 2026 | EBS | F | 1,741 | $8.00 | $13,928 | 185,558 Direct | -0.93% | Disposed | -9.5% (price as of 2026-10-05) |
| April 29, 2026 | EBS | A | 100,111 | · | · | 187,299 Direct | +114.82% | Acquired | (price as of 2026-10-05) |
| March 5, 2026 | EBS | F | 9,493 | $8.44 | $80,121 | 87,188 Direct | -9.82% | Disposed | -14.2% (price as of 2026-10-05) |
| March 3, 2026 | EBS | A | 44,834 | · | · | 259,545 Direct | +20.88% | Acquired | (price as of 2026-10-05) |
| Feb. 6, 2026 | EBS | D | 5,771 | $10.92 | $63,019 | 97,311 Direct | -5.60% | Disposed | -33.7% (price as of 2026-10-05) |
| Feb. 6, 2026 | EBS | F | 630 | $10.92 | $6,880 | 96,681 Direct | -0.65% | Disposed | -33.7% (price as of 2026-10-05) |
| Nov. 11, 2025 | EBS | F | 610 | $10.88 | $6,637 | 103,082 Direct | -0.59% | Disposed | -33.5% (price as of 2026-10-05) |
| July 11, 2025 | EBS | F | 4,263 | $7.36 | $31,376 | 103,692 Direct | -3.95% | Disposed | -1.6% (price as of 2026-10-05) |
| June 8, 2025 | EBS | F | 1,167 | $6.63 | $7,737 | 107,955 Direct | -1.07% | Disposed | 9.2% (price as of 2026-10-05) |
| April 7, 2025 | EBS | F | 561 | $4.44 | $2,491 | 109,122 Direct | -0.51% | Disposed | 63.1% (price as of 2026-10-05) |
| March 6, 2025 | EBS | A | 62,500 | · | · | 109,683 Direct | +132.46% | Acquired | (price as of 2026-10-05) |
| March 6, 2025 | EBS | A | 62,500 | · | · | 109,975 Direct | +131.65% | Acquired | (price as of 2026-10-05) |
| March 6, 2025 | EBS | A | 62,500 | · | · | 214,711 Direct | +41.06% | Acquired | (price as of 2026-10-05) |
| March 5, 2025 | EBS | F | 292 | $5.80 | $1,694 | 47,183 Direct | -0.62% | Disposed | 24.8% (price as of 2026-10-05) |
| Nov. 11, 2024 | EBS | F | 632 | $11.97 | $7,565 | 47,475 Direct | -1.31% | Disposed | -39.5% (price as of 2026-10-05) |
| July 11, 2024 | EBS | A | 15,000 | · | · | 48,107 Direct | +45.31% | Acquired | (price as of 2026-10-05) |
| June 8, 2024 | EBS | F | 1,167 | $6.19 | $7,224 | 33,107 Direct | -3.40% | Disposed | 17.0% (price as of 2026-10-05) |
| April 7, 2024 | EBS | F | 665 | $2.29 | $1,523 | 34,274 Direct | -1.90% | Disposed | 216.2% (price as of 2026-10-05) |
| March 13, 2024 | EBS | A | 125,000 | · | · | 152,211 Direct | +459.37% | Acquired | (price as of 2026-10-05) |
| March 5, 2024 | EBS | F | 346 | $3.41 | $1,180 | 34,939 Direct | -0.98% | Disposed | 112.3% (price as of 2026-10-05) |
| Nov. 11, 2023 | EBS | F | 632 | $2.00 | $1,264 | 35,285 Direct | -1.76% | Disposed | 262.0% (price as of 2026-10-05) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| March 3, 2026 | EBS | Employee Stock Option (Right to buy) | Common Stock | $8.99 | March 2, 2033 | 44,834 | Acquired |
| March 6, 2025 | EBS | Employee Stock Options (Right to Buy) | Common Stock | $5.80 | March 5, 2032 | 62,500 | Acquired |
| March 13, 2024 | EBS | Employee Stock Options (Right to Buy) | Common Stock | $2.33 | March 12, 2031 | 125,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.