Filings (90d)
0
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies Jack Langer 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.
- George R. Krouse Jr. - $55K in SBAC purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Frequently asked questions
Who is Jack Langer?
Jack Langer is a corporate insider of SBA COMMUNICATIONS CORP (SBAC). InsiderAlpha holds 7 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Jack Langer last file a Form 4?
The most recent primary Form 4 on record is dated 27 May 2026, one of 7 filings going back to 2025.
Has Jack Langer been buying or selling stock?
Recorded transactions: 0 open-market purchases and 3 open-market sales ($1.20M) across all tracked filings.
