Filings (90d)
Other insiders active in the same sector
No other insider has filed at Thomas W. Rieck's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- John T. Kim - $484.90M in AMKR purchases and sales in the last 12 months
- David A. Duffield - $470.63M in WDAY purchases and sales in the last 12 months
- MEGACHIPS CORP - $414.04M in SITM purchases and sales in the last 12 months
- Xuning Wang - $401.19M in SN purchases and sales in the last 12 months
- OGP VIII, LLC - $360.00M in ACCV purchases and sales in the last 12 months
- Steven Schuurman - $323.50M in ESTC purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Thomas W. Rieck?
Thomas W. Rieck is a corporate insider of SIGMATRON INTERNATIONAL INC (SGMA). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Thomas W. Rieck last file a Form 4?
The only primary Form 4 on record is dated 25 July 2025.
