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Prokidney Corp. (NASDAQ:PROK)
US · Delayed Price · Currency is USD
Healthcare · Biotechnology
1.40-0.01 (-0.64%)
Insider Score
––Not scored
PROK Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
PROK Stock Insider Trading Activity
PROK stock’s insider trading shows 6 sales on the open market for an estimated $1.07M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Pereira Brian JG Director | Sell | 222,948 | $1.42 | $316.56K | 100% | 0 | Aug 20, 2026 | — | Form 4 |
| Pereira Brian JG Director | Sell | 27,052 | $1.42 | $38.41K | 100% | 0 | Aug 20, 2026 | — | Form 4 |
| Pereira Brian JG Director | Sell | 222,949 | $1.44 | $321.20K | 50.0% | 222,948 | Aug 19, 2026 | — | Form 4 |
| Pereira Brian JG Director | Sell | 27,051 | $1.44 | $38.97K | 50.0% | 27,052 | Aug 19, 2026 | — | Form 4 |
| Pereira Brian JG Director | Sell | 27,826 | $1.37 | $38.16K | 34.0% | 54,103 | Aug 18, 2026 | — | Form 4 |
| Pereira Brian JG Director | Sell | 229,338 | $1.37 | $314.47K | 34.0% | 445,897 | Aug 18, 2026 | — | Form 4 |
| Pereira Brian JG Director | Converted | 675,235 | — | — | New | 675,235 | Aug 4, 2026 | — | Form 4 |
| Pereira Brian JG Director | Converted | 81,929 | — | — | New | 81,929 | Aug 4, 2026 | — | Form 4 |
| Girolamo Todd C Other | Converted | 163,857 | — | — | 100% | 327,713 | Jun 12, 2026 | — | Form 4 |
| Control Empresarial de Capitales S.A. de C.V. Other | Converted | 63,118,645 | — | — | 589% | 73,842,723 | Apr 28, 2026 | — | Form 4 |
| Pereira Brian JG Director | Sell | 447,803 | $2.37 | $1.06M | 100% | 0 | Nov 13, 2025 | — | Form 4 |
| Pereira Brian JG Director | Sell | 54,333 | $2.37 | $128.77K | 100% | 0 | Nov 13, 2025 | — | Form 4 |
| Pereira Brian JG Director | Sell | 227,431 | $2.72 | $618.61K | 33.7% | 447,803 | Nov 12, 2025 | — | Form 4 |
| Pereira Brian JG Director | Sell | 27,595 | $2.72 | $75.06K | 33.7% | 54,333 | Nov 12, 2025 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Converted (C) — Conversion of a derivative security into shares
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.