Zaderej Karen L.
Director · Officer · EYPT, AXGN
As of 2026-09-27, Zaderej Karen L. has 21 Form 4 transactions on record across 2 companies — 2 in the trailing 12 months.
Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.
Pattern in the record: open-market purchases filed in August in multiple years since 2024 — a recurring calendar cadence, more consistent with scheduled activity than a one-off decision.
Reconstructed holdings
Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.
Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.
Trades by company
Filing ledger
| Date | Company | Action | Shares @ price | Value | Ownership Δ | Owned after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-08-18 | EYPT | Purchase | 10,600 @ $4.93 | $52K | +27.5% of holding | 49,100 | Form 4 |
| 2025-05-19 | EYPT | Purchase | 5,000 @ $5.99 | $30K | +15.9% of holding | 36,500 | Form 4 |
| 2025-05-16 | EYPT | Purchase | 5,000 @ $5.81 | $29K | +18.9% of holding | 31,500 | Form 4 |
| 2025-05-15 | EYPT | Purchase | 5,000 @ $5.47 | $27K | +23.3% of holding | 26,500 | Form 4 |
| 2025-05-14 | EYPT | Purchase | 5,000 @ $5.42 | $27K | +30.3% of holding | 21,500 | Form 4 |
| 2024-08-19 | EYPT | Purchase | 12,500 @ $7.98 | $100K | +312.5% of holding | 16,500 | Form 4 |
| 2024-03-21 | AXGN | Sale | 33,028 @ $7.68 | $254K | −2.9% of holding | 1,124,565 | Form 4 |
| 2024-03-21 | AXGN | Sale | 3,166 @ $7.68 | $24K | −0.3% of holding | 1,143,788 | Form 4 |
| 2024-03-21 | AXGN | Sale | 3,086 @ $7.68 | $24K | −0.3% of holding | 1,133,979 | Form 4 |
12 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-01-02 | EYPT | Award / grant | 40,000 | 40,000 | Form 4 |
| 2025-07-11 | EYPT | Option exercise | 2,000 | 38,500 | Form 4 |
| 2025-07-11 | EYPT | Option exercise | 2,000 | 0 | Form 4 |
| 2025-01-03 | EYPT | Award / grant | 40,000 | 40,000 | Form 4 |
| 2024-07-11 | EYPT | Option exercise | 2,000 | 2,000 | Form 4 |
| 2024-07-11 | EYPT | Option exercise | 2,000 | 4,000 | Form 4 |
| 2024-03-16 | AXGN | Option exercise | 12,500 | 1,137,065 | Form 4 |
| 2024-03-16 | AXGN | Option exercise | 84,847 | 1,157,593 | Form 4 |
| 2024-03-16 | AXGN | Option exercise | 12,500 | 12,500 | Form 4 |
| 2024-03-16 | AXGN | Option exercise | 12,975 | 0 | Form 4 |
| 2024-03-16 | AXGN | Option exercise | 84,847 | 84,847 | Form 4 |
| 2024-03-16 | AXGN | Option exercise | 12,975 | 1,146,954 | Form 4 |
Source: SEC Form 4 filings. Each row links to its original filing.
Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.