Filings (90d)
0
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Mark Altmeyer 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.
- Arnon Rosenthal - $656K in ALEC purchases and sales in the last 12 months
- Neil Lindsay Berkley - $221K in ALEC purchases and sales in the last 12 months
- Grace Wong-Sarad - $86K in ALEC purchases and sales in the last 12 months
- Sara Kenkare-Mitra - $47K in ALEC purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Mark Altmeyer?
Mark Altmeyer is a corporate insider of Alector, Inc. (ALEC). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2026, updated as new SEC EDGAR filings are processed.
When did Mark Altmeyer last file a Form 4?
The only primary Form 4 on record is dated 17 June 2026.
