Summary
Updated Aug 30, 2026
Sian Bigora is Chief Development Officer of Processa Pharmaceuticals, Inc. (PCSA). 7 SEC Form 4 filings on record going back to 2025, most recently on 19 May 2026. Most recent open-market trade: bought $5K of PCSA on 19 May 2026. Lifetime open-market purchases: $21K. Historical track record: 1/5 stars across 4 tracked purchases.
Recent Transactions
5Every recent SEC Form 4 transaction Sian Bigora has reported, most recent first.
Track Record
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realized performance after each tracked open-market purchase.
| Metric | Value |
|---|---|
| InsiderAlpha rating | ★☆☆☆☆ (1/5) |
| Total purchases tracked | 4 |
| Purchases with forward-return data | 4 |
| 30-day win rate | 25% |
| 90-day win rate | 0% |
| Avg 5-day return | -0.13% |
| Avg 30-day return | -1.42% |
| Avg 90-day return | -23.86% |
| Best 30-day return | +6.93% |
Trading Pattern
InsiderAlpha's records for Sian Bigora go back to 2025: 7 primary Form 4 filings, an average of 3.5 per year. The typical open-market purchase is $5K (4 buys totaling $21K). The largest single buy on record is $5K of PCSA in 2026. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Sian Bigora 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.
- Russell Skibsted - $42K of PCSA open-market activity in the last 12 months
- George K. Ng - $39K of PCSA open-market activity in the last 12 months
- Wendy Guy - $33K of PCSA open-market activity in the last 12 months
- David Young - $32K of PCSA open-market activity in the last 12 months
- Patrick Lin - $28K of PCSA open-market activity in the last 12 months
- Khoso Baluch - $6K of PCSA 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 Sian Bigora?
Sian Bigora is a corporate insider, tracked as Chief Development Officer of Processa Pharmaceuticals, Inc. (PCSA). InsiderAlpha holds 7 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Sian Bigora last file a Form 4?
The most recent primary Form 4 on record is dated 19 May 2026, one of 7 filings going back to 2025.
Has Sian Bigora been buying or selling stock?
Recorded transactions: 4 open-market purchases ($21K) and 0 open-market sales across all tracked filings.
How accurate is Sian Bigora's historical track record?
Across 4 tracked purchases, Sian Bigora averaged -1.4% avg 30-day return with a 25% 30-day win rate. InsiderAlpha rates the track record at 1/5 stars.
Where can I see all of Sian Bigora'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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