Biggest Insider Buys: September 2026
The largest open-market insider purchases disclosed in SEC Form 4 filings, ranked by dollar value.
In September 2026, 7 open-market insider purchases of $50K or more were disclosed across 7 companies in SEC Form 4 filings, totaling $783K. The largest single purchase was $272K by SADASIVAM SHAKER at FTC Solar, Inc. (FTCI).
← All monthly rankingsLargest purchases · September 2026
| Source | |||||||
|---|---|---|---|---|---|---|---|
| FTCI | Director | Purchase | 101,083 | $272K | Sep 1 | SEC ↗ | |
| GO | Director | Purchase | 15,000 | $176K | Sep 1 | SEC ↗ | |
| ACLOX | Portfolio Manager | Purchase | 4,046.013 | $102K | Sep 1 | SEC ↗ | |
| AMRC | Chief Executive Officer | Purchase | 3,000 | $66K | Sep 1 | SEC ↗ | |
| GPUS | Executive Chairman | Purchase | 197,641 | $59K | Sep 1 | SEC ↗ | |
| UUU | Director, 10% Owner | Purchase | 10,800 | $56K | Sep 1 | SEC ↗ | |
| CURI | President and CEO | Purchase | 20,000 | $52K | Sep 1 | SEC ↗ |