Summary
Updated Aug 31, 2026
Bruce L. Claflin is Director of IDEXX LABORATORIES INC /DE (IDXX). 3 SEC Form 4 filings on record going back to 2025, most recently on 14 May 2026. Most recent open-market trade: sold $1.19M of CIEN on 24 September 2025. Lifetime open-market sales: $1.19M.
Recent Transactions
3Every recent SEC Form 4 transaction Bruce L. Claflin has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Bruce L. Claflin go back to 2025: 3 primary Form 4 filings, an average of 1.5 per year. 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 Bruce L. Claflin 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.
- Gary B. Smith - $26.22M of CIEN open-market activity in the last 12 months
- Jason Phipps - $15.55M of CIEN open-market activity in the last 12 months
- Jonathan Jay Mazelsky - $15.34M of IDXX open-market activity in the last 12 months
- Nimrata Hunt - $9.53M of IDXX open-market activity in the last 12 months
- David M. Rothenstein - $9.27M of CIEN open-market activity in the last 12 months
- George Fennell - $7.34M of IDXX 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 Bruce L. Claflin?
Bruce L. Claflin is a corporate insider, tracked as Director of IDEXX LABORATORIES INC /DE (IDXX). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Bruce L. Claflin last file a Form 4?
The most recent primary Form 4 on record is dated 14 May 2026, one of 3 filings going back to 2025.
Has Bruce L. Claflin been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($1.19M) across all tracked filings.
Where can I see all of Bruce L. Claflin'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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