Filings (90d)
Other insiders active in the same sector
No other insider has filed at R. Janet Whitmore's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Ira Liran - $38.83M in COCO purchases and sales in the last 12 months
- Noel R. Wallace - $33.98M in CL purchases and sales in the last 12 months
- William B. Cyr - $33.22M in FRPT purchases and sales in the last 12 months
- John Ackerman - $32.75M in GRDN purchases and sales in the last 12 months
- William P. Stiritz - $32.29M in POST purchases and sales in the last 12 months
- Jason M. Hollar - $29.38M in CAH purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is R. Janet Whitmore?
R. Janet Whitmore is a corporate insider of NANOPHASE TECHNOLOGIES Corp (SLSN). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did R. Janet Whitmore last file a Form 4?
The most recent primary Form 4 on record is dated 30 December 2025, one of 3 filings going back to 2024.
Has R. Janet Whitmore been buying or selling stock?
Recorded transactions: 17 open-market purchases ($106K) and 0 open-market sales across all tracked filings.
