Summary
Updated Aug 31, 2026
Warren Nighan Jr. is SVP Quality and Regulatory of ANGIODYNAMICS INC (ANGO). 7 SEC Form 4 filings on record going back to 2024, most recently on 31 July 2026. Most recent open-market trade: sold $344K of ANGO on 31 July 2026. Lifetime open-market purchases: $5K. Lifetime open-market sales: $344K.
Recent Transactions
13Every recent SEC Form 4 transaction Warren Nighan Jr. has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Warren Nighan Jr. go back to 2024: 7 primary Form 4 filings, an average of 2.3 per year. The typical open-market purchase is $3K (2 buys totaling $5K). The largest single buy on record is $5K of ANGO in 2024. Sales side: 1 recorded sale totaling $344K, so the filing history runs sell-heavy by dollar value. 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 Warren Nighan Jr. 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.
- Lawrence T. Weiss - $118K of ANGO open-market activity in the last 12 months
- James C. Clemmer - $112K of ANGO open-market activity in the last 12 months
- Stephen A. Trowbridge - $10K of ANGO 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 Warren Nighan Jr.?
Warren Nighan Jr. is a corporate insider, tracked as SVP Quality and Regulatory of ANGIODYNAMICS INC (ANGO). InsiderAlpha holds 7 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 Warren Nighan Jr. submitted recently?
4 primary Form 4 filings in the last 90 days, covering 1 company.
Has Warren Nighan Jr. been buying or selling stock?
Recorded transactions: 2 open-market purchases ($5K) and 1 open-market sale ($344K) across all tracked filings.
Where can I see all of Warren Nighan Jr.'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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