Updated Jul 16, 2026
NELSEN ROBERT has filed 2 SEC Form 4 filings across 2 companies in the last 90 days — buying. Lifetime open-market purchases: $10.00M.

Robert Nelsen is a prominent figure in the biotechnology sector, known for his roles as a director and significant shareholder in companies like Sana Biotechnology and Prime Medicine. He has a strong background in venture capital and has been influential in advancing gene editing technologies.
| Role | Director, 10% Owner |
|---|---|
| Notability | 50/100 |
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-08-01 | PRME | Prime Medicine, Inc. | P — Open-market purchase | 3.03M | $3.30 | $10.00M |
Robert Nelsen is a prominent figure in the biotechnology sector, known for his roles as a director and significant shareholder in companies like Sana Biotechnology and Prime Medicine. He has a strong background in venture capital and has been influential in advancing gene editing technologies.…
2 primary Form 4 filings in the last 90 days, covering 2 companies.
Recorded transactions: 1 open-market purchases ($10.00M) and 0 open-market sales () across all tracked 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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