Updated Jul 16, 2026
Nielsen Kirk G. has filed 1 SEC Form 4 filing across 1 company in the last 90 days — buying. Lifetime open-market purchases: $3.68M. Historical track record: 4/5 stars across 5 tracked purchases.
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 | ★★★★☆ (4/5) |
|---|---|
| Total purchases tracked | 5 |
| Purchases with forward-return data | 5 |
| 30-day win rate | 8000% |
| 90-day win rate | 8000% |
| Avg 5-day return | +2366.22% |
| Avg 30-day return | +1147.09% |
| Avg 90-day return | +3071.93% |
| Best 30-day return | +3915.79% |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-06-03 | CVRX | CVRx, Inc. | A — Grant or award | 8.7K | $0.00 | |
| 2026-02-10 | SGP | SpyGlass Pharma, Inc. | P — Open-market purchase | 165.0K | $16.00 | $2.64M |
| 2026-02-10 | SGP | SpyGlass Pharma, Inc. | J — Other acquisition / disposition | 359.3K | — | |
| 2026-02-10 | SGP | SpyGlass Pharma, Inc. | J — Other acquisition / disposition | 548.1K | — | |
| 2026-02-10 | SGP | SpyGlass Pharma, Inc. | J — Other acquisition / disposition | 548.1K | — | |
| 2026-02-10 | SGP | SpyGlass Pharma, Inc. | J — Other acquisition / disposition | 1.69M | — | |
| 2025-05-15 | CVRX | CVRx, Inc. | P — Open-market purchase | 11.0K | $5.45 | $60K |
| 2025-05-12 | CVRX | CVRx, Inc. | P — Open-market purchase | 61.2K | $5.23 | $320K |
| 2025-05-12 | CVRX | CVRx, Inc. | P — Open-market purchase | 101.4K | $5.29 | $536K |
| 2025-05-12 | CVRX | CVRx, Inc. | P — Open-market purchase | 25.2K | $4.79 | $121K |
Nielsen Kirk G. is a corporate insider — currently tracked as Insider of CVRx, Inc. (CVRX). InsiderAlpha tracks every SEC Form 4 filing in real time.
1 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 5 open-market purchases ($3.68M) and 0 open-market sales () across all tracked filings.
Across 5 tracked purchases, Nielsen Kirk G. averaged +1147.1% avg 30-day return with a 8000% 30-day win rate. InsiderAlpha rates the track record at 4/5 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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