Eisner Mark
Director · Officer · JBIO, ZURA, VIR
As of 2026-09-16, Eisner Mark has 12 Form 4 transactions on record across 3 companies — 8 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.
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 |
|---|---|---|---|---|---|---|---|
| 2026-02-25 | VIR | Sale | 1,889 @ $9.82 | $19K | −1.2% of holding | 154,024 | Form 4 |
| 2026-02-24 | VIR | Sale | 1,616 @ $9.53 | $15K | −1.0% of holding | 155,913 | Form 4 |
| 2026-02-23 | VIR | Sale | 2,089 @ $7.45 | $16K | −1.3% of holding | 157,529 | Form 4 |
| 2025-07-17 | VIR | Sale | 3,586 @ $5.47 | $20K | −3.3% of holding | 104,618 | Form 4 |
| 2025-07-15 | VIR | Sale | 6,796 @ $5.47 | $37K | −5.9% of holding | 108,204 | Form 4 |
7 award / exercise / gift records — not counted as purchases
| Date | Company | Action | Shares | Owned after | Filing |
|---|---|---|---|---|---|
| 2026-06-25 | JBIO | Award / grant | 47,675 | 47,675 | Form 4 |
| 2026-06-17 | ZURA | Award / grant | 51,000 | 51,000 | Form 4 |
| 2026-02-22 | VIR | Award / grant | 55,000 | 159,618 | Form 4 |
| 2026-02-22 | VIR | Award / grant | 110,000 | 110,000 | Form 4 |
| 2026-02-21 | ZURA | Award / grant | 37,812 | 37,812 | Form 4 |
| 2025-02-22 | VIR | Award / grant | 80,000 | 80,000 | Form 4 |
| 2025-02-22 | VIR | Award / grant | 40,000 | 115,000 | 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.