Rebecca Byam - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Rebecca Byam has filed 1 SEC Form 4 filing across 1 company in the last 90 days - buying. Lifetime open-market purchases: $20K.
Profile
Rebecca Byam is the Chief Financial Officer at HCW Biologics Inc. (HCWB). Byam has reported 1 insider filing with the SEC since 2026. The most recent filing was in May 2026.
| Role | Chief Financial Officer |
|---|---|
| Notability | 34/100 |
Board memberships
- HCW Biologics Inc.
Reported roles
- Chief Financial Officer
Awards & honors
- Appointed CFO of HCW Biologics Inc. (as of 2026) per SEC filing
Trading Pattern
InsiderAlpha's records for Rebecca Byam go back to 2026: 1 primary Form 4 filing, an average of 1.0 per year. The typical open-market purchase is $10K (2 buys totaling $20K). The largest single buy on record is $20K of HCWB 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.
Career & Filing History
Every role Rebecca Byam has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Chief Financial Officer at HCW Biologics Inc. (HCWB) - 1 filing, 2026
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-05-27 | HCWB | HCW Biologics Inc. | P - Open-market purchase | 14.2K | $1.41 | $20K |
Companies - Last 90 Days
- HCW Biologics Inc. (HCWB) - 1 filing, last 2026-05-27
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades at the companies Rebecca Byam has recently filed at. Multiple unrelated insiders buying the same stock within a short window - cluster buying - has historically been one of the strongest Form 4 signals.
- Scott T. Garrett - $270K of HCWB open-market activity in the last 12 months
- Hing C. Wong - $220K of HCWB open-market activity in the last 12 months
- Lee Flowers - $20K of HCWB open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Redmile Group, LLC
- Andrew Phillips Reed
- Daniel Reis-Faria
- Saul B. Rosenthal
- Jack Ross
- Martine A. Rothblatt
- Saba Capital Management, L.P.
- Nicholas S. Schorsch
Frequently Asked Questions
Who is Rebecca Byam?
Rebecca Byam is the Chief Financial Officer at HCW Biologics Inc. (HCWB). Byam has reported 1 insider filing with the SEC since 2026. The most recent filing was in May 2026.…
How many SEC Form 4 filings has Rebecca Byam submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Rebecca Byam been buying or selling stock?
Recorded transactions: 2 open-market purchases ($20K) and 0 open-market sales across all tracked filings.
Where can I see all of Rebecca Byam'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.
Learn More
Open the live Rebecca Byam profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.