Rong Zhou
SENIOR EVP, PRODUCTION CENTER · Amphastar Pharmaceuticals, Inc.
- 2024
- Sep 17, 2026
- 8
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Rong Zhou 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.
- Floyd F. Petersen - $454K in AMPH purchases and sales in the last 12 months
- William J. Peters - $287K in AMPH purchases and sales in the last 12 months
- Richard K. Prins - $275K in AMPH purchases and sales in the last 12 months
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Frequently asked questions
Who is Rong Zhou?
Rong Zhou is a corporate insider, tracked as SENIOR EVP, PRODUCTION CENTER of Amphastar Pharmaceuticals, Inc. (AMPH). InsiderAlpha holds 8 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Rong Zhou submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Rong Zhou been buying or selling stock?
Recorded transactions: 0 open-market purchases and 5 open-market sales ($1.32M) across all tracked filings.
