Korro Bio (KRRO) stock

Worth $216MShares as of Nov 3

$15.73

+5.15%

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

Not scored

Breakaway doesn't score KRRO. It is too thinly traded for a fair Quality Score.

Healthcare · Biotech

Next2H 2026“…for hyperammonemia, remains on track to commence first-in-human clinical trial in second half of 2026”Trial start · SEC filing · Aug 6

Cash$125M, about 7 quarters at the last year's spendingOn Sep 30 · the company says “into the second half of 2028”

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

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

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Cash$125M, about 7 quarters at the last year's spendingOn Sep 30 · the company says “into the second half of 2028”

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

Next step the company has named

2H 2026“KRRO-121, a potential first-in-class transformational treatment for hyperammonemia, remains on track to commence first-in-human clinical trial in second half of 2026”Trial start · SEC filing · Aug 6

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

Lead program: KRRO-121 · Urea Cycle Disorders, Inborn · Phase 1/2
Its trial: ANCHORPhase 1/2 · Recruiting · 30 people · main data estimated Aug 2027 · NCT07773246

For Pro members: 3 more milestones and 39 filings.

Cash runway Sep 30 balance sheet

About 7 quarters

$125M in cash and investments (as the company counts them), 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 the second half of 2028” (8-K, Nov 5).

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

Dilution on the horizon

Shelf registration (S-3, filed Dec 2, 2024)
At-the-market share sales program (424B5, filed Dec 6, 2024)

For Pro members: 1 raise and its amount, and the share count against a year ago.

Insiders

Director Jean Francois Formela sold 48,690 shares on Sep 14, under a planned sale. 14 more insider trades this year.

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

Get an alert when Ram Aiyar buys or sells

For Pro members: every trade, and Ram Aiyar’s 13 filings and quotes.

Get an alert when KRRO files news on its trialA free account. No card.

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

In 12 daysFDA decisionIn 12 days · FDA decisionCAPRCapricor TherapeuticsDeramiocelCAPRCapricor Therapeutics · $500MDeramiocelFDA decision due (PDUFA)
In 12 daysFDA decisionIn 12 days · FDA decisionSVRASavaraMolgramostimSVRASavara · $900MMolgramostimFDA decision due (PDUFA)
In 42 daysFDA decisionIn 42 days · FDA decisionMLYSMineralys TherapeuticsLorundrostatMLYSMineralys Therapeutics · $1.3BLorundrostatFDA decision due (PDUFA)

14 more FDA dates and 103 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 151 dates, ranked →

KRRO's latest filings

Quarterly report10-Q, filed Nov 5
Korro Reports Third Quarter 2026 Financial Results and Provides Corporate Update8-K, filed Nov 5
An insider's trade or awardForm 4, filed Oct 26

39 more filings in the last year, for Pro members

From SEC EDGAR, as filed. Each opens the filing on the SEC's site.

Why KRRO isn't scored

The Quality Score reads US-listed stocks worth $50M or more that trade at $1 or more and 300,000 shares or $10M a day. KRRO trades about 245,000 shares a day. A stock that clears every mark is scored from the next weekly rebuild.

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