Updated Jul 16, 2026
LARSON KEITH R has filed 1 SEC Form 4 filing across 1 company in the last 90 days — buying. Lifetime open-market purchases: $149K. Historical track record: 5/5 stars across 3 tracked purchases.
Keith R. Larson is a corporate insider who has served as a Director at companies including NWPX Infrastructure, Inc. and AST SpaceMobile, Inc. He has been involved in several SEC filings but has not reported any stock purchases or sales.
| Role | Director |
|---|---|
| Notability | 40/100 |
InsiderAlpha computes a forward-return-based score for every insider with enough Form 4 purchase history. The metrics below reflect realised performance after each tracked open-market purchase.
| InsiderAlpha rating | ★★★★★ (5/5) |
|---|---|
| Total purchases tracked | 3 |
| Purchases with forward-return data | 3 |
| 30-day win rate | 10000% |
| 90-day win rate | 10000% |
| Avg 5-day return | +571.67% |
| Avg 30-day return | +5207.08% |
| Avg 90-day return | +2562.43% |
| Best 30-day return | +8714.84% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-12 | NWPX | NWPX Infrastructure, Inc. | A — Grant or award | 899 | $122.31 | $110K |
| 2025-12-29 | ASTS | AST SpaceMobile, Inc. | P — Open-market purchase [10b5-1] | 625 | $80.00 | $50K |
| 2025-12-17 | ASTS | AST SpaceMobile, Inc. | P — Open-market purchase [10b5-1] | 715 | $70.02 | $50K |
| 2025-12-10 | ASTS | AST SpaceMobile, Inc. | P — Open-market purchase [10b5-1] | 675 | $72.71 | $49K |
| 2025-06-12 | NWPX | NWPX Infrastructure, Inc. | A — Grant or award | 2.2K | $39.23 | $85K |
Keith R. Larson is a corporate insider who has served as a Director at companies including NWPX Infrastructure, Inc. and AST SpaceMobile, Inc. He has been involved in several SEC filings but has not reported any stock purchases or sales.…
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 3 open-market purchases ($149K) and 0 open-market sales () across all tracked filings.
Across 3 tracked purchases, LARSON KEITH R averaged +5207.1% avg 30-day return with a 10000% 30-day win rate. InsiderAlpha rates the track record at 5/5 stars.
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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