← United States · Coverage record
US · SEC FORM 4
PROKIDNEY CORP.
PROK · Nasdaq · CIK 0001850270 · Healthcare · Biotechnology
INSIDER SIGNAL
0 qualifying P purchase groups
in the current 180-day scoring window
10 Form 4 transaction lines observed in the same window
6 sales · 4 option, withholding, award, gift or other lines
WHY NO ACTIVE SIGNAL?
Score anatomy
No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.
Why is there no score?
- No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
- Sales and other Form 4 activity remain visible as context and do not create a negative score.
Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.
Insider activity timeline
Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.
—
Purchase breadth, concentration & cluster buying
These modules activate when qualifying purchases enter the 180-day research window.
SIGNAL HISTORY
Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2025-04-22 · Control Empresarial de Capitales S.A. de C.V..
Recent Form 4 activity
P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.
Market context
Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.
Short interest
Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.
- Shares short
- 23,785,320
- Previous report
- 21,445,366
- Avg daily volume
- 2,167,549
- Days to cover
- 11.0
FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.
Historical equity purchases
Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.
| Transaction date | Reporting owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2025-04-22 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 387,393 | USD 0.71 | USD 275,049 | SEC filing ↗ |
| 2025-04-17 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 25,000 | USD 0.75 | USD 18,750 | SEC filing ↗ |
| 2025-04-16 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 100,000 | USD 0.75 | USD 75,000 | SEC filing ↗ |
| 2025-04-15 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 468,000 | USD 0.70 | USD 327,600 | SEC filing ↗ |
| 2025-04-14 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 268,105 | USD 0.73 | USD 195,717 | SEC filing ↗ |
| 2025-04-11 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 1,900 | USD 0.61 | USD 1,159 | SEC filing ↗ |
| 2025-04-10 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 1,032,218 | USD 0.61 | USD 629,653 | SEC filing ↗ |
| 2024-06-13 | Legorreta Pablo G.; Tolerantia, LLC | Purchase (P) | Class A Ordinary Shares | 22,617,909 | USD 2.42 | USD 54,735,340 | SEC filing ↗ |
| 2024-06-11 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 8,264,462 | USD 2.42 | USD 19,999,998 | SEC filing ↗ |
| 2024-03-25 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 30,000 | USD 1.43 | USD 42,900 | SEC filing ↗ |
| 2024-03-22 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 14,000 | USD 1.40 | USD 19,600 | SEC filing ↗ |
| 2024-03-20 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 33,000 | USD 1.40 | USD 46,200 | SEC filing ↗ |
| 2024-03-14 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 50,000 | USD 1.36 | USD 68,000 | SEC filing ↗ |
| 2024-03-13 | Control Empresarial de Capitales S.A. de C.V. | Purchase (P) | Class A Ordinary Shares (as defined in Exhibit 99.1 hereto) | 50,000 | USD 1.50 | USD 75,000 | SEC filing ↗ |
| 2022-09-06 | Cowen Aaron | Purchase (P) | Class A Ordinary Shares | 7,007 | USD 6.99 | USD 48,979 | SEC filing ↗ |
Form 4 evidence
14 transaction lines in the latest 365-day window; 105 in local history.
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-08-20 | Pereira Brian JG | Sale (S) | Class A Common Stock | 250,000 | USD 1.42 | USD 355,000 | SEC filing ↗ |
| 2026-08-19 | Pereira Brian JG | Sale (S) | Class A Common Stock | 250,000 | USD 1.44 | USD 360,000 | SEC filing ↗ |
| 2026-08-18 | Pereira Brian JG | Sale (S) | Class A Common Stock | 257,164 | USD 1.37 | USD 352,315 | SEC filing ↗ |
Show recent Form 4 evidence (8 grouped rows)
| Date | Owner | Type | Security | Shares | Avg. price | Approx. value | Source |
|---|---|---|---|---|---|---|---|
| 2026-08-20 | Pereira Brian JG | Sale (S) | Class A Common Stock | 250,000 | USD 1.42 | USD 355,000 | SEC filing ↗ |
| 2026-08-19 | Pereira Brian JG | Sale (S) | Class A Common Stock | 250,000 | USD 1.44 | USD 360,000 | SEC filing ↗ |
| 2026-08-18 | Pereira Brian JG | Sale (S) | Class A Common Stock | 257,164 | USD 1.37 | USD 352,315 | SEC filing ↗ |
| 2026-08-04 | Pereira Brian JG | C (C) | Class A Common Stock | 757,164 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-06-12 | Girolamo Todd C | C (C) | Class A Common Stock | 163,857 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2026-04-28 | Control Empresarial de Capitales S.A. de C.V. | C (C) | Class A Common Shares (as defined in Exhibit 99.1 hereto) | 63,118,645 | USD 0.00 | USD 0 | SEC filing ↗ |
| 2025-11-13 | Pereira Brian JG | Sale (S) | Class A Common Stock | 502,136 | USD 2.37 | USD 1,190,062 | SEC filing ↗ |
| 2025-11-12 | Pereira Brian JG | Sale (S) | Class A Common Stock | 255,026 | USD 2.72 | USD 693,671 | SEC filing ↗ |
Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.
Snapshot & identity
| Snapshot date | 2026-10-18 |
|---|---|
| Ranking version | US-v1.2 |
| Data quality | PASS ELIGIBLE · — |
| Ticker | PROK |
| CIK | 0001850270 |
| Sector | Healthcare |
| Industry | Biotechnology Yahoo Finance |
| SEC SIC | 2836 Biological Products, (No Diagnostic Substances) |
| Exchange | Nasdaq |
Data coverage
| Local Form 4 history | 105 transaction lines from 2021-07-02 to 2026-08-20 18 P purchase lines · 56 S sale lines · 31 other lines |
|---|---|
| SEC company submissions | Open SEC filings ↗ |
Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.