Summary
Updated Aug 31, 2026
Alan Bruce Montgomery is Director of Xencor Inc (XNCR). 4 SEC Form 4 filings on record going back to 2024, most recently on 8 July 2026. Most recent open-market trade: sold $62K of XNCR on 17 June 2026. Lifetime open-market sales: $499K.
Recent Transactions
9Every recent SEC Form 4 transaction Alan Bruce Montgomery has reported, most recent first.
Trading Pattern
InsiderAlpha's records for Alan Bruce Montgomery go back to 2024: 4 primary Form 4 filings, an average of 1.3 per year. 12 recorded transactions carry a Rule 10b5-1 flag, meaning they were pre-scheduled under a written trading plan rather than discretionary.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies Alan Bruce Montgomery 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.
- Bassil I. Dahiyat - $320K of XNCR open-market activity in the last 12 months
- John R. Desjarlais - $106K of XNCR open-market activity in the last 12 months
- Kevin Charles Gorman - $93K of XNCR open-market activity in the last 12 months
- Ellen Feigal - $89K of XNCR open-market activity in the last 12 months
- Celia Eckert - $74K of XNCR open-market activity in the last 12 months
- Bart Jan Cornelissen - $71K of XNCR 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 Alan Bruce Montgomery?
Alan Bruce Montgomery is a corporate insider, tracked as Director of Xencor Inc (XNCR). InsiderAlpha holds 4 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 Alan Bruce Montgomery submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Alan Bruce Montgomery been buying or selling stock?
Recorded transactions: 0 open-market purchases and 4 open-market sales ($499K) across all tracked filings.
Where can I see all of Alan Bruce Montgomery'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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