Summary
Updated Aug 30, 2026
AMERICAN TOWER CORP files SEC Form 4 reports at AST SpaceMobile, Inc. (ASTS). 1 SEC Form 4 filing on record, dated 11 December 2025. Most recent open-market trade: sold $159.63M of ASTS on 11 December 2025. Lifetime open-market sales: $159.63M.
Recent Transactions
1Every recent SEC Form 4 transaction AMERICAN TOWER CORP has reported, most recent first.
Other Insiders Active in the Same Stocks
Insiders who reported open-market trades in the last 12 months at the companies AMERICAN TOWER CORP 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.
- Hiroshi Mikitani - $270.90M of ASTS open-market activity in the last 12 months
- Huiwen Yao - $12.74M of ASTS open-market activity in the last 12 months
- Scott Wisniewski - $7.73M of ASTS open-market activity in the last 12 months
- Andrew Martin Johnson - $5.31M of ASTS open-market activity in the last 12 months
- Julio A. Torres - $1.15M of ASTS open-market activity in the last 12 months
- Shanti B. Gupta - $773K of ASTS 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
What is AMERICAN TOWER CORP?
AMERICAN TOWER CORP is a corporate entity of AST SpaceMobile, Inc. (ASTS). InsiderAlpha holds 1 primary Form 4 filing for it, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did AMERICAN TOWER CORP last file a Form 4?
The only primary Form 4 on record is dated 11 December 2025.
Has AMERICAN TOWER CORP been buying or selling stock?
Recorded transactions: 0 open-market purchases and 1 open-market sale ($159.63M) across all tracked filings.
Where can I see all of AMERICAN TOWER CORP'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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