The table below summarizes the most recent PRNB insider buying information, with links below the price to see the CAGR achieved by each insider on their purchases. As the saying goes on Wall St., there are many possible reasons to sell a stock, but only one reason to buy. Watch the importance of insider buying video for more information about why PRNB insider buys are important for investors to follow.

Date	Insider	Price	Amount
11-20-2019 Insider Buy	Daniel J. Becker Director	$29.94 CAGR »	$1,646,700.00 55,000 shares
10-29-2019 Insider Buy	Daniel J. Becker Director	$33.48 CAGR »	$2,598,025.97 77,600 shares
10-18-2019 Insider Buy	Plc Glaxosmithkline	$28.00 CAGR »	$9,999,976.00 357,142 shares
10-18-2019 Insider Buy	Daniel J. Becker Director	$28.00 CAGR »	$14,980,000.00 535,000 shares
10-18-2019 Insider Buy	Simeon George Director	$28.00 CAGR »	$9,999,976.00 357,142 shares
9-18-2018 Insider Buy	Simeon George Director and >10% Owner	$17.00 CAGR »	$4,590,000.00 270,000 shares
9-18-2018 Insider Buy	New Leaf Ventures II, L.P. >10% Owner	$17.00 CAGR »	$4,590,000.00 270,000 shares
9-18-2018 Insider Buy	Daniel J. Becker Director and >10% Owner	$17.00 CAGR »	$4,590,000.00 270,000 shares
9-18-2018 Insider Buy	ORBIMED ADVISORS LLC >10% Owner	$17.00 CAGR »	$4,250,000.00 250,000 shares
9-18-2018 Insider Buy	Sofinnova Venture Partners VIII, L.P. >10% Owner	$17.00 CAGR »	$4,590,000.00 270,000 shares
9-18-2018 Insider Buy	Plc Glaxosmithkline >10% Owner	$17.00 CAGR »	$4,590,000.00 270,000 shares
9-18-2018 Insider Buy	Srinivas Akkaraju Director	$17.00 CAGR »	$2,975,000.00 175,000 shares

Also See: Institutional Holders of PRNB
Also See: SEC filings

Below we present the annualized performance delivered by PRNB stock since 11-20-2019 (the date of the most recent insider purchase). The performance of the investment from the time PRNB insider buying occurred is the ultimate test of whether insiders were right about PRNB being a good buy.

Growth of $10,000.00 Without Dividends Reinvested
Start date:	11/21/2019
End date:	09/28/2020
Start price/share:	$31.08
End price/share:	$100.05
Dividends collected/share:	$0.00
Total return:	221.91%
Annualized Gain:	260.44%
Starting investment:	$10,000.00
Ending investment:	$32,191.00
Years:	0.85

PRNB Insider Buying

This Holdings Channel page has presented insider buying activity, covering Directors, officers (such as CEO, CFO, COO, etc.), and >10% owners (who are required to file form 4's with the SEC). Important institutional owners may not fall under these categories, but instead file their holdings quarterly on the latest form 13F filings. While recent PRNB insider buying activity is included, there may also be stock sales over this same period (Also See: SEC filings for sales and other details).

Also See: Funds Holding PRNB

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PRNB Insider Buying | www.HoldingsChannel.com