PROK insider trading — Prokidney Corp.
Over the last 90 days, insiders at Prokidney Corp. (PROK) made 0 open-market purchases worth $0 and 6 open-market sales worth $1.07M, making them net sellers by $1.07M. The largest sale was by Pereira Brian Jg (Director), who sold 222,949 shares for $321K on Aug 19, 2026.
Updated Oct 16, 2026.
Recent PROK insider transactions
Every Form 4 filed by Prokidney Corp. officers, directors and 10% owners in the last 90 days, newest first. P = open-market purchase, S = open-market sale; other codes are awards, option exercises, tax withholding or gifts.
| Trade date | Insider | Role | Type | Ownership | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|---|
| Aug 20, 2026 | Pereira Brian Jg | Director | S · Sale | Indirect | 222,948 | $1.42 | $317K | Form 4 |
| Aug 20, 2026 | Pereira Brian Jg | Director | S · Sale | Direct | 27,052 | $1.42 | $38K | Form 4 |
| Aug 19, 2026 | Pereira Brian Jg | Director | S · Sale | Indirect | 222,949 | $1.44 | $321K | Form 4 |
| Aug 19, 2026 | Pereira Brian Jg | Director | S · Sale | Direct | 27,051 | $1.44 | $39K | Form 4 |
| Aug 18, 2026 | Pereira Brian Jg | Director | S · Sale | Indirect | 229,338 | $1.37 | $314K | Form 4 |
| Aug 18, 2026 | Pereira Brian Jg | Director | S · Sale | Direct | 27,826 | $1.37 | $38K | Form 4 |
| Aug 4, 2026 | Pereira Brian Jg | Director | C · Conversion | Direct | 81,929 | — | — | Form 4 |
| Aug 4, 2026 | Pereira Brian Jg | Director | C · Conversion | Indirect | 675,235 | — | — | Form 4 |
PROK insider trading FAQ
Are insiders buying PROK stock?
Not on the open market. In the last 90 days, Prokidney Corp. insiders made no open-market purchases, and 6 open-market sales totaling $1.07M. Purchases with the insider's own money are generally seen as a stronger signal than sales, which happen for many reasons (taxes, diversification, planned 10b5-1 sales).
Who are the insiders trading PROK?
Recent sellers: Pereira Brian Jg.
Where does PROK insider trading data come from?
Every transaction comes from SEC Form 4 filings on EDGAR. Company officers, directors and 10% owners must file a Form 4 within two business days of buying or selling. InsiderBolt reads these filings directly from the SEC.
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Insider trading data is for informational purposes only and is not investment advice. Filings can be amended; always confirm details on SEC EDGAR.