NASDAQ:PROK

Prokidney Stock Insider Trading

Healthcare > Biotechnology

Buy PROK

*Your capital is at risk

$1.73

-0.170 (-8.95%)

At Close: Jun 03, 2026

ProKidney Stock Insider Power

Based on the 100 latest insides trades, we have calculated the insider power to be positive at 47.90. In total, the insiders bought 93.33M and sold 156.04M PROK shares in the last 100 trades. The insider score can be negative despite buy/sell ratio being positive. The score focuses on the quality of the trades.

Insider Power (Last 100 transactions)	47.90
● Buy	93.33M shares
● Sell	156.04M shares
70% Buy Activity Weak Negative Correlation
Sell Signal Low Confidence Jun 01, 2026 Analysis Breakdown: Signal is highly questionable due to a strongly contradictory positive Insider Power Score of 47.9. Confidence increased due to high data reliability score of 100.

Historical Insider Trades

Date	Type	Person	Role	Amount
May 28, 2026 Buy	Director stock option (right to buy) A-Award	Legorreta Pablo G.	Director	135 000 Value: $244.4K
May 28, 2026 Buy	Director stock option (right to buy) A-Award	Sinha Uma Director	Director	135 000 Value: $244.4K
May 28, 2026 Buy	Director stock option (right to buy) A-Award	Doyle William F Director	Director	135 000 Value: $244.4K
May 28, 2026 Buy	Director stock option (right to buy) A-Award	Jimenez Santos Jose Ignacio Director	Director	135 000 Value: $244.4K
May 28, 2026 Buy	Director stock option (right to buy) A-Award	Lotvin Alan Director	Director	135 000 Value: $244.4K
May 28, 2026 Buy	Director stock option (right to buy) A-Award	Fox Jennifer A. Director	Director	135 000 Value: $244.4K
May 28, 2026 Buy	Director stock option (right to buy) A-Award	Pereira Brian Jg Director	Director	135 000 Value: $244.4K
Apr 28, 2026 Sell	Common Units in ProKidney LLC C-Conversion	Control Empresarial De Capitales S.a. De C.v. Add'l Rep. Persons-see Ex.99-1	10% Owner	63 118 645 Value: $0
Apr 28, 2026 Buy	Class A Common Shares (as defined in Exhibit 99.1 hereto) C-Conversion	Control Empresarial De Capitales S.a. De C.v. Add'l Rep. Persons-see Ex.99-1	10% Owner	63 118 645 Value: $0.12B
Apr 28, 2026 Sell	Class B Common Shares C-Conversion	Control Empresarial De Capitales S.a. De C.v. Add'l Rep. Persons-see Ex.99-1	10% Owner	63 118 645 Value: $0
Mar 01, 2026 Buy	Employee stock option (right to buy) A-Award	Girolamo Todd C Chief Legal Officer	Officer	600 000 Value: $1.34M
Mar 01, 2026 Buy	Employee stock option (right to buy) A-Award	Coulston James Chief Financial Officer	C-Suite Officer	600 000 Value: $1.34M
Mar 01, 2026 Buy	Employee stock option (right to buy) A-Award	Weber Darin J. Chief Regulatory Officer	Officer	400 000 Value: $896.0K
Mar 01, 2026 Buy	Employee stock option (right to buy) A-Award	Culleton Bruce Chief Executive Officer	CEO / President	3 000 000 Value: $6.72M
Nov 13, 2025 Sell	Class A Common Stock S-Sale	Pereira Brian Jg Director	Director	54 333 Value: $128.8K
Nov 12, 2025 Sell	Class A Common Stock S-Sale	Pereira Brian Jg Director	Director	227 431 Value: $619.4K
Nov 12, 2025 Sell	Class A Common Stock S-Sale	Pereira Brian Jg Director	Director	27 595 Value: $75.2K
Jul 11, 2025 Buy	Common Stock J-Other	Cowen Aaron Insider	Other	0 Value: $0
Jul 11, 2025 Buy	Common Stock J-Other	Cowen Aaron Insider	Other	0 Value: $0
Jul 08, 2025 Sell	Class A Common Stock S-Sale	Weber Darin J. Chief Regulatory Officer	Officer	103 480 Value: $312.5K
Jul 08, 2025 Sell	Class A Common Stock S-Sale	Weber Darin J. Chief Regulatory Officer	Officer	103 480 Value: $312.5K
Jun 03, 2025 Sell	Class B Ordinary Shares C-Conversion	Legorreta Pablo G.	Director	3 823 996 Value: $0
Jun 03, 2025 Sell	Common Units in ProKidney LP C-Conversion	Legorreta Pablo G.	Director	3 823 996 Value: $0
Jun 03, 2025 Buy	Class A Ordinary Shares C-Conversion	Legorreta Pablo G.	Director	3 823 996 Value: $2.98M
Jun 03, 2025 Sell	Class A Ordinary Shares J-Other	Legorreta Pablo G.	Director	3 823 996 Value: $0

About Insider Power

Insider Power is a proprietary algorithm developed by StockInvest.us to evaluate the significance of insider transactions. The calculation considers the size, type, and timing of transactions, as well as the insider’s role within the company.

It is important to note that, in general, there is little to no correlation between insider transactions and short-term stock price movements. In one of our studies, only 0.22%^* of stocks with insider activity showed a measurable correlation — and even then, it was unclear whether the effect was caused by insider actions or simply by the stock’s broader trend.

While our algorithms are designed to highlight potentially meaningful signals, these cannot be regarded as statistically significant on their own. Insider trading activity should therefore be seen as informative rather than as direct trading guidance. The Insider Power metric was created to present this information in a clearer and more accessible way, helping investors better understand the possible context of insider activity.

* October 6th, 2025 - Tested on 5562 stocks