PRME
VIR
SANA

Robert Nelsen

Known title: DirectorCIK: 0001219042

Robert Nelsen's purchase track record

How the stock did after each of Robert Nelsen's open-market purchases, measured from the purchase date. Several fills within a week count as one purchase.

Purchases measured
4
of 4 since October 24, 2022
Stock higher 6 months later
0%
3 months: 75%
Median 6-month return
-19.1%
3 months: +15.9%
Beat the S&P 500
0%
median -26.8% vs. index
PurchaseStockAmount3 months6 months
8/1/2025PRME$10.00M+22.3%-5.7%
2/15/2024PRME$20.00M-9.7%-43.7%
2/8/2024SANA$10.00M+21.8%-24.3%
10/24/2022PRME$13.60M+10.1%-13.9%

Computed by MarketWall from SEC Form 4 filings and daily closing prices (close on the purchase date to the close about 3 and 6 months later). Companies that have since delisted are not included. Past results, not investment advice.

Associated companies

AI Market Commentary

AI-generatedAll commentary →

Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.

September 25, 2026

Prime Medicine stock surges after FDA clears IND for PM647. Prime Medicine shares rose significantly after the U.S. FDA cleared the Investigational New Drug application for PM647, a gene editing therapy for alpha-1 antitrypsin deficiency. This regulatory approval allows the company to begin clinical trials for the treatment. The positive news for Prime Medicine occurred alongside a broader decline in gene-editing stocks triggered by recent developments involving Anthropic AI.

this person other insiders at PRME

AI Market Commentary

AI-generatedAll commentary →

Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.

October 14, 2026

Vir Biotechnology Secures $1.875B Gilead Deal for Cancer Drug Candidates. Vir Biotechnology entered a $1.875 billion partnership with Gilead that includes an upfront cash payment and shares, plus up to $1.785 billion in milestone payments and royalties. The collaboration also covers three PRO‑XTEN dual‑masked T‑cell engager candidates for solid tumors, with one, VIR‑5500, receiving FDA Fast‑Track status for metastatic castration‑resistant prostate cancer. These developments expand Vir’s oncology pipeline and strengthen its relationship with a major biopharma partner.

this person other insiders at VIR

AI Market Commentary

AI-generatedAll commentary →

Synthesized from recent news and fundamentals/technical data -- not human analyst commentary or trader sentiment.

October 15, 2026

Sana Biotechnology Featured in Diabetes Treatment Analysis. Sana Biotechnology was the subject of a recent analysis titled 'A Shot At Diabetes,' which likely examines the company's potential in treating the condition. This coverage places the stock in the spotlight for investors watching biotech developments. The stock is currently trading near its support level, with an RSI indicating it may be oversold.

this person other insiders at SANA

Transaction History

PRME▲ Buy$10.0M
VIR▲ Buy$0
PRME▲ Buy$20.0M
SANA▲ Buy$2.0M
SANA▲ Buy$4.0M
SANA▲ Buy$4.0M
VIR▲ Buy$0
SANA▲ Buy$0
PRME▲ Buy$6.8M
PRME▲ Buy$6.8M
PRME▼ Sell—
PRME▼ Sell—
PRME▼ Sell—
SANA▲ Buy$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
SANA▲ Buy$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▲ Buy$0
SANA▲ Buy$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0
VIR▼ Sell$0

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