Summary
Updated Aug 31, 2026
Jerome B. Zeldis files SEC Form 4 reports at SOLIGENIX, INC. (SNGX). 3 SEC Form 4 filings on record, most recently on 13 December 2024. Most recent open-market trade: sold $192K of PTCT on 4 December 2024. Lifetime open-market purchases: $10K. Lifetime open-market sales: $1.24M.
Recent Transactions
8Every recent SEC Form 4 transaction Jerome B. Zeldis has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Jerome B. Zeldis go back to 2024: 3 primary Form 4 filings, an average of 1.0 per year. The typical open-market purchase is $10K (1 buy totaling $10K). The largest single buy on record is $10K of NXGL in 2024. Sales side: 5 recorded sales totaling $1.24M, so the filing history runs sell-heavy by dollar value. 9 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Jerome B. Zeldis 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.
- Neil Gregory Almstead - $19.99M of PTCT open-market activity in the last 12 months
- Mark Elliott Boulding - $8.67M of PTCT open-market activity in the last 12 months
- Emma Reeve - $5.11M of PTCT open-market activity in the last 12 months
- Eric Pauwels - $4.88M of PTCT open-market activity in the last 12 months
- Michael Schmertzler - $3.61M of PTCT open-market activity in the last 12 months
- Matthew B. Klein - $3.60M of PTCT open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Jerome B. Zeldis?
Jerome B. Zeldis is a corporate insider of SOLIGENIX, INC. (SNGX). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did Jerome B. Zeldis last file a Form 4?
The most recent primary Form 4 on record is dated 13 December 2024, one of 3 filings going back to 2024.
Has Jerome B. Zeldis been buying or selling stock?
Recorded transactions: 1 open-market purchase ($10K) and 5 open-market sales ($1.24M) across all tracked filings.
Where can I see all of Jerome B. Zeldis's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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