ProKidney (PROK) logo

ProKidney (PROK) stock

Kidney cell therapy , market cap $307M

$1.12
-13.51%

As of Monday's close · Live for Pro members at the open

Why is PROK down?

Down 13.5% today, more than its biotech peers' 2.4%; no story names it yet.

Fell 15% since Oct 28

Down 15% from Oct 28 to Oct 30 while the S&P 500 fell 2%.

  • ProKidney fell 15% from Oct 28 to Oct 30. 12 points of it came on Oct 30.

Sources: Price history, Oct 30, 2026

Tell me next time PROK moves

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1 more reason, free with an account →2 more reasons why PROK fell 15% since Oct 28, from its filings, with how the business stands, the timeline, and its peers, for Pro members.
Quality Score
-6
Poor
In its industry
#240of 291

PROK's Quality Score was unchanged on Mon, Nov 2, at -6.

Follow PROK's trial news. Pro members can get an alert when ProKidney files news, and see its trials, share raises, and its CEO's filings.

Get an alert when PROK files news on its trialSee it live, free until Wednesday morning. No account. No card. Then keep going with a free account.

We do the work for you. Every stock is scored and ranked, every 15 seconds while the market is open. Here it's 15 minutes behind. Pro members see it live.

Next2H 2026“On track for completion of full enrollment for PROACT 1 in the second half of 2026”Trial start · SEC filing · Aug 10
Cash$74.9M, about 2 quarters at the last year's spendingOn Jun 30 · the company says “into mid-2027”

Key facts on PROK

Key facts on PROK
Holding it back42.7% more shares than a year ago from Massive's market data
Latest filing8-K, Oct 29 Signed a material agreement
1 more reason behind PROK's -6, free with an account →5 more reasons behind PROK's -6, for Pro members.

PROK in the news

TodayNo story names it yet.

What's next

Wed Nov 11: BioPharma Cell & Gene Therapy Nexus 2026Industry event · date confirmed.

Cash$74.9M, about 2 quarters at the last year's spendingOn Jun 30 · the company says “into mid-2027”

PROK catalysts

Coming up

After its last 4 reports it closed -2.6% on average, higher 1 of 4 times.

1 more coming up and 1 past catalyst since 2026, with sizes and sources, for Pro members.Get in free →

What's next for PROK, and how long its cash lasts

Next step the company has named

2H 2026“On track for completion of full enrollment for PROACT 1 in the second half of 2026”Trial start · SEC filing · Aug 10

What it means: when a trial begins, or reaches the stage the company named.

A trial underway
Proact: A Study of REACT in Subjects With Type 2 Diabetes Mellitus and Chronic Kidney DiseasePhase 3 · Active · 685 people · main data estimated Dec 2029 · NCT05099770

For Pro members: 2 more milestones and 39 filings.

Cash runway Jun 30 balance sheet

About 2 quarters

$74.9M in cash and short-term investments, at its spending over the last year

What it means: how long the cash would last at the same pace, before any new money. The company's estimate is “into mid-2027” (8-K, May 15).

For Pro members: the cash used each quarter, and the math.

Dilution on the horizon

No shelf registration or at-the-market program on file in the last three years.

For Pro members: 3 raises and their amounts, and the share count against a year ago.

Insiders

Director Brian Jg Pereira sold 757,164 shares on Aug 20.

From Form 4: open-market buys and sales only.

For Pro members: every trade, and Bruce Culleton’s 6 filings and quotes.

Get an alert when PROK files news on its trialSee it live, free until Wednesday morning. No account. No card. Then keep going with a free account.

See every upcoming FDA date →

FDA dates in the next 60 days

Decision dates and advisory committee meetings the companies have announced in their filings, soonest first and small companies first.

DateStockDrug

11 more FDA dates and 102 trial data dates in the next 60 days, each on the FDA calendar. Pro members see whether each company's cash lasts past its date, with an optional alert before it. See all 143 dates, ranked →

Why PROK scores -6

Poorfor quality, not price, 2 of 14 chart checks firingWhat the Quality Score means

-6 is below -5, off the left end of the scale.

  • +2Chart checks 2 of 14 firing right now, one point each
  • −3Long-term trend below a falling 200-⁠day average, down over one year, down over two years
  • Profit subtractsRead on the last four quarters against the four before, or the last full year where no quarters are filed.
  • Growth addsSales and margins against a year earlier: up to +3 for fast growth and widening margins, down to -2 when both shrink.
  • Dilution subtractsNew shares over the year: -1 at 10% more, -2 at 25% more.
  • Volatility subtractsA daily range of 5% or more with nothing behind it (no profit or cash flow, sales shrinking, or 10% more shares outstanding with no free cash flow): -1, or -2 from 8%.
  • Cash flow subtracts-1 when free cash flow over the last four quarters is negative.
  • Insider trades subtracts

No effect today: Run-up, Size, Persistence, and News.

What every line is worth, and the reason behind it, on PROK and every other stock.Get in free →

Price, score, chart checks, and the industry rank are from a snapshot taken at 9:36 PM ET, at least 15 minutes behind. How we rank stocks.

Tested. Our top-⁠scored stocks returned 2.2x the average stock over the next month. How we tested it

Here is what Pro members see.

  • The same page for Pro members, on AMD

    Its Quality Score and rank, the line that drives it, and the live price.

  • The full chart

    A year of candles to start, out to the whole history, with insider trades marked and the Quality Score under the price.

  • Every line of the score

    Price action, the company, and signals, each with its points, on PROK and every other stock.

  • FDA dates, counted down

    Each date in the company's words, its cash against the date, and an optional alert before it.

  • CEOs buying their own stock

    Every CEO buy, biggest names first. Sort, filter, save the list, and set optional alerts.

  • Congress trades

    A member's trades, newest first, each with its amount. Sort and filter the whole list.

  • 14 chart checks, read for you

    The ones firing on the stock, each in plain words, its rule a tap away.

  • Earnings, week by week

    Who reports each day, and how each stock took its last four reports.

  • The market map

    Every stock a box, colored by its Quality Score.

  • Themes, ranked live

    Each theme's stocks ranked by Quality Score, live. Here, AI chips.

  • The top 10, every day

    The ten highest Quality Scores at each close, kept day by day, week by week.

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    Your stocks by Quality Score, today's move, or name.

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PROK has 2 of 14 chart checks firing

Volume1 of 3 shown
Tight range1 of 3 shown
Buying1 of 3 shown
The other 10 checks on PROK, and all 14 on every stock.Get in free →

PROK RSI today: 30.3, below its 50-day and 200-day averages

Not scored

Not in the Quality Score: over 20 years of tests, 2006 to 2026, they added no edge.

The deep dive on PROK

5 more findings on PROK, each with its source, for Pro membersGet in free →

How PROK ranks in Biotech

PROK is #240 of 291 by Quality Score.

How PROK ranks in Biotech
240ProKidney (PROK) logoPROKProKidney-6

More in Biotech

When does PROK report earnings, and what happens after?

Expected to report Mon Nov 9, after the close (in 7 days). Expected.

What an earnings report is: every 3 months, a company tells everyone how much it sold and earned. We read the figures, the outlook, and how the stock moved after.

What PROK reported on Aug 10, 2026

The quarter

The figures are not read from the release yet.

“The increase of $10.2 million was driven by increases in clinical study and related manufacturing costs of $8.7 million, primarily related to our ongoing PROACT 1 study.”

The filing on EDGAR

Where the sales came from

PROK's results filing gives no sales by line in a table we read.

The outlook

No outlook figures read from this release.

In the company's words

  • “The decrease of $1.6 million was driven primarily by decreases in compensation costs of approximately $1.2 million due to vesting of awards issued prior to our business combination in 2022, coupled with forfeitures of equity-based awards and reductions in severance costs.”

From its results filing (SEC filing · Aug 10)

The numbers

Market value
$307M
today
Sales
$818K
up 55.2% on the year
Free cash flow
-$160M
last 12 months

1 more figure, for Pro members.

No analyst estimates on Breakaway: every figure here is filed.

The whole report on PROK: every line of its sales, every outlook beside the one it replaced, and the company's words, for Pro members.Get in free →
ReportedGapReaction5
sessions
Aug 10, 2026After close-4.7%-4.7%-17.2%
May 15, 2026No time given0.0%-3.0%+5.4%
Mar 18, 2026After close-1.0%-6.3%-12.0%

PROK closed higher after 1 of its last 4 reports.

All 4 reports, and PROK's Quality Score going into each

Everyone reporting earnings next week

PROK sales and profit by year

Sales and profit by year

Sales grew in two of the last three years, to $893K in 2025. It lost money in each of the three years.

PROK share count over time

Offerings, shelves, and splits of PROK, from its filings
From its
filings
Filed
Registered shares for a later sale (S-3)Oct 29, 2026
Set up an at-the-market program for up to $200M of shares, about 65% of its market valueJul 14, 2025
Priced a sale of sharesApr 28, 2025
Set up an at-the-market program for up to $100M of shares, about 33% of its market valueJan 19, 2024

1 more offering on file, for Pro members.

Insiders trading PROK

PROK insider trades

One insider sold $1.1M across 6 filings in the last 6 months. No open-⁠market buys on record. The newest:

SellBrian Jg Pereira$321KDirectorat $1.44 on Aug 19, filed Aug 20
All 6 insider filings on PROK from the last six months, for Pro members.Get in free →

All PROK insider trades

PROK's officers and directors

Officers and directors with a Form 4 in the last 12 months.

See insider trades by person

About ProKidney

ProKidney Corp is a clinical-stage biotechnology company pioneering the development of a first-in-class, autologous cell therapy that is intended to preserve kidney function in patients with advance chronic kidney disease (CKD) and diabetes. Its product candidate, REACT (Renal Autologous Cell Therapy), is a disease-modifying cell therapy made from a patient's renal cells. REACT has the potential to slow and stabilize the progression of chronic kidney disease. The company's pipeline consists of the development program for severe diabetic kidney disease.

231 employeesWinston-Salem, NCprokidney.com

What ProKidney says it competes with

“The biotechnology and pharmaceutical industries are characterized by rapid technological advancement, significant competition, and an emphasis on intellectual property.”

From its annual report, SEC filing · Mar 18, 2026

2 more sentences and what it says it does, for Pro membersGet in free →

PROK's score card

ProKidney (PROK): Quality Score -6, Poor, #240 of 291 in Biotech, with its price, on Breakaway
The picture a link to this page shows when it is shared.

Pro members see every line of every stock's score.

  • What would turn PROK's score around: 9 things
  • 7 more filings explained, a plain line each
  • Real-⁠time prices, no delay
BreakawayAug 20Brian Jg Pereira sold PROK$321K at $1.44, filed Aug 20

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See PROK's 14 chart checks

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Straight Answers

As of Nov 2, 2026: PROK's Quality Score is -6 (Poor), #240 of 291 in Biotech. Insiders sold $1.1M in the last 6 months (Form 4).

Is PROK a good stock to buy? What its Quality Score says

PROK scores -6 today, which Breakaway calls Poor. It is #240 of 291 in Biotech by Quality Score, with 2 of 14 chart checks firing. Down 15% from Oct 28 to Oct 30 while the S&P 500 fell 2%. Cash lasts about 2 quarters at its spending (to Jun 30). Breakaway does not say whether to buy any stock: the score does not know your situation, and it is not a recommendation to buy or sell anything. Please do your own research.

What is PROK's Quality Score?

PROK scores -6 today, which Breakaway calls Poor (below zero). That is #240 of 291 in Biotech by Quality Score. The score adds up the chart checks, the trend, the company's filed sales, its profits, the news, insider trades, and Congress trades. The section above lists the lines behind PROK's -6.

Are insiders buying PROK?

One insider sold $1.1M across 6 filings in the last 6 months. No open-⁠market buys on record. The newest is Brian Jg Pereira, Director, who sold $321K on Aug 19. Every filing, with the scored weight, for Pro members.

Are the prices delayed?

Only on the public pages, which run at least 15 minutes behind. Pro members, and anyone on a guest pass, see real-time prices: the scanner refreshes every 15 seconds, and your watchlist every few seconds, pre-market and after hours included.

What's next for ProKidney: from its SEC filings and ClinicalTrials.gov, the company's words, the registry's dates, and arithmetic, not a forecast. Companies often miss the dates they set.

The moves after past earnings reports are past behavior, not a forecast.

The price, the score, the chart checks and readings, and the industry rank on this page are delayed at least 15 minutes.

Our top-scored stocks' record: Oct 2021 to Sep 2026, before costs. Recorded live since Sep 9 2026.

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