Mark Eisner
Insider
IndividualSelling only5 10b5-1 trades
- 2025
- Jun 27, 2026
- 6
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark Eisner files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- AI Biotechnology LLC - $12.50M in ZURA purchases and sales in the last 12 months
- SVF Endurance (Cayman) Ltd - $9.98M in VIR purchases and sales in the last 12 months
- Vicki L. Sato - $1.47M in VIR purchases and sales in the last 12 months
- Backer Marianne de - $947K in VIR purchases and sales in the last 12 months
- Verneuil Vanina de - $218K in VIR purchases and sales in the last 12 months
- Brent Sabatini - $113K in VIR purchases and sales in the last 12 months
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Frequently asked questions
Who is Mark Eisner?
Mark Eisner is a corporate insider of Jade Biosciences, Inc. (JBIO). InsiderAlpha holds 6 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Mark Eisner last file a Form 4?
The most recent primary Form 4 on record is dated 27 June 2026, one of 6 filings going back to 2025.
Has Mark Eisner been buying or selling stock?
Recorded transactions: 0 open-market purchases and 5 open-market sales ($106K) across all tracked filings.
