Summary
Updated Aug 31, 2026
David F. Welch is Director of Infinera Corp (INFN). 2 SEC Form 4 filings on record, most recently on 6 December 2024.
Recent Transactions
4Every recent SEC Form 4 transaction David F. Welch has reported, most recent first.
Trading Pattern
InsiderAlpha's records for David F. Welch go back to 2024: 2 primary Form 4 filings, an average of 0.7 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.
Most Active Insiders Right Now
David F. Welch has no co-filers on record, so these are insiders with the largest open-market activity across the market in the last 90 days.
- Thomas J. Nimbley - $87.92M of PBF open-market activity in the last 90 days
- John Colgrove - $87.13M of P open-market activity in the last 90 days
- David Zaslav - $86.59M of WBD open-market activity in the last 90 days
- Alexander C. Karp - $86.06M of PLTR open-market activity in the last 90 days
- VisionWave Holdings, Inc. - $7.98B of SVRE open-market activity in the last 90 days
- Magnetar Financial LLC - $6.65B of CRWV open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is David F. Welch?
David F. Welch is a corporate insider, tracked as Director of Infinera Corp (INFN). InsiderAlpha holds 2 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
When did David F. Welch last file a Form 4?
The most recent primary Form 4 on record is dated 6 December 2024, one of 2 filings going back to 2024.
Where can I see all of David F. Welch'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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