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Research & education only — not financial advice.TENK is not a registered investment adviser; calls are impersonal, generated from SEC filings and a delayed/third-party price feed, and may be wrong or out of date. The operator and an affiliated trading operation may hold or trade the securities TENK rates — see Disclosures. Do your own research.

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Home›Stocks›KYNB
KYNB logo

KYNB

KYNTRA BIO, INC.

Next earnings Aug 10, 2026 (after close) · consensus $-3.34 EPS, $1.24M rev

Last earnings -2.2% on 2026-05-11

Avoid
$7.63
▲ +4.38%
$7.63▲ +46.17%
over 1Y
L $5.22H $12.43
Earnings Dividend Split Congress buy Congress sellGrouped by date · hover a pin to expand
Today+4.4%
1W+9.9%
1M+11.5%
3M+8.8%
YTD-16.7%
1Y+46.2%
OverviewFinancialsValuationQualityTimelineFilings
Rating
Avoid
Quality
C-
Valuation
Undervalued
Filings
Flagged
Avoid
Conviction
Horizon
Long (>12mo)
Street · 8 analysts
Buy

FibroGen reborn as Kyntra: collapsed revenue, negative equity, one-time paper profit — a binary clinical bet, not an investable business.

Revenue $6.44M · FY2025

The read

It screens cheap (~22496% below fair value), but the weak fundamentals are why — more potential value trap than bargain.

KYNB screens optically cheap — a 0.2 P/E and a $183M FY2025 net income — but both figures are mirages. The profit is non-operating: the MD&A ties it to the August 2025 sale of the China roxadustat business to AstraZeneca for $220.4M ($85.0M enterprise value + $135.4M net China cash). Strip that out and the real engine is operating income of -$45.9M (a -712.7% operating margin) on revenue that has cratered from $235M (FY2021) to just $6.44M (FY2025, -78.3% YoY), of which only ~$5.8M was API drug-product sales to Astellas. This is no longer a commercial-stage company; it is a clinical-stage oncology/anemia developer that has sold its one revenue-generating franchise.

The balance sheet is impaired. Stockholders' equity is NEGATIVE -$30.0M (liabilities/equity -3.83x), accumulated deficit is -$1.71B, and $47.9M of cash sits against $75.0M long-term debt plus a $67.3M NovaQuest RIFA liability (a sale of future revenues that anticipates a payment cap of up to $125.0M by 2031) and $11.1M+ of TEKES loans. Management states plainly it 'will need substantial additional funding in connection with our continuing operations' — the classic prelude to dilution, made more acute by a float of only 4.05M shares after a ~96% share-count reduction (a reverse split that also inflates the $45.37 EPS optics).

Is KYNB a buy? The one-page verdict, explained →

The options angle

model · matches our verdict
Bear put spread (caution)~90d expiry
  • Long put 7.5 @ ~0.38 est
  • Short put 7 @ ~0.19 est
debit $19max +$31max −$19BE 7.31

AVOID means we wouldn't engage at all — if expressing the short side anyway, only with capped risk.

Open in the calculator →

Educational template, not a trade recommendation. Strikes and premiums are Black-Scholes model estimates from the last close and 30-day realized volatility — real chains, spreads and IV will differ. Options involve substantial risk.

Financials · annual, by fiscal year

Line itemFY21FY22FY23FY24FY25
Revenue$235M$141M$46.8M$29.6M$6.44M
Gross profit—————
Operating income-$289M-$301M-$323M-$150M-$45.9M
Net income-$290M-$294M-$284M-$47.6M$183M
Diluted EPS-$3.14-$3.14-$2.92-$11.89$45.37
Net margin-123.3%-208.7%-607.3%-160.6%2848.6%

Annual figures from SEC 10-K XBRL filings. Open the filing links below for full statement detail.

Key statistics

Valuation

Enterprise value$58.0M
EV / EBITDA—
EV / Sales9.0
EV / FCF—
P / FCF—
PEG (trailing)0.00
Earnings yield593.9%
FCF yield-15.6%

Quality & risk

ROIC (est.)—
Free cash flow-$4.81M
Total debt$75.0M
Net cash-$27.1M
Altman Z-Score-20.32 distress
Piotroski F-Score4/7

Capital returns

Buyback yield—
Dividend yield (est.)—
Shareholder yield—
Shares Δ YoY-96.0%

Computed from SEC XBRL annual figures + the current quote. EV and ROIC use long-term + current debt where filed; estimates, not investment advice.

Disclosure timeline

SEC · 8-Ks + reports
Recent disclosure tone has skewed negative — read the flagged items.
  1. 8-K Shareholder vote2026-06-16

    Annual meeting vote results filed; directors elected and routine proposals ratified

  2. 8-K Other event2026-06-09

    Item 8.01 other-events disclosure — corporate/program update, no financial impact stated

  3. 10-Q Quarterly report2026-05-12

    Q1 2026: slim Astellas API revenue, continuing operating losses, funding still needed

  4. 8-K Earnings results2026-05-11

    Q1 2026 results released; post-China-sale revenue thin, cash runway in focus

  5. DEF 14A Proxy statement2026-04-27

    2026 proxy: board election, comp and meeting proposals — routine governance

  6. 8-K Delisting notice2026-04-09

    Nasdaq continued-listing deficiency notice (Item 3.01) — delisting risk flagged

  7. 8-K Earnings results2026-03-16

    FY2025 10-K: $220M China sale gain but revenue -78%, negative equity, funding need

  8. 10-K Annual report2026-03-16

    FY2025 10-K: $220M China sale gain but revenue -78%, negative equity, funding need

  9. 8-K Charter / bylaws change2026-01-07

    Rebranded FibroGen to Kyntra Bio (KYNB); charter amended, oncology pivot

Recent filings

all on EDGAR ↗
4Period ending 2026-06-122026-06-17open ↗4Period ending 2026-06-122026-06-17open ↗4Period ending 2026-06-122026-06-17open ↗4Period ending 2026-06-122026-06-17open ↗8-KPeriod ending 2026-06-122026-06-16open ↗4Period ending 2026-06-062026-06-09open ↗4Period ending 2026-06-062026-06-09open ↗8-KPeriod ending 2026-06-022026-06-09open ↗4/APeriod ending 2026-05-142026-05-19open ↗4Period ending 2026-05-142026-05-18open ↗SCHEDULE 13G/AFiling2026-05-15open ↗10-QPeriod ending 2026-03-312026-05-12open ↗

Quality score

C-
ValueGrowthProfitHealthMom.
ValueB+
GrowthC
ProfitabilityC
Financial healthF
MomentumD
  • ✗Revenue growing year-over-year
  • ✓Profitable (positive net income)
  • ✓Net margin above 10%
  • ✓Liabilities below 2× equity
  • ✓P/E below 25

Fair value est.

$1,724.06

Undervalued +22496% vs price

cheapfair valueexpensive

Modified Graham: EPS $45.37 × (8.5 + 1.5 × 22.0% growth) × 1.05 quality = 38.0× multiple. An estimate, not a price target.

5.3752-week12.43
Revenue
$6.44M
-78.3% YoY
Net margin
2848.6%
ROE
—
P/E
0.2

SEC fundamentals · FY 2025

'21'22'23'24'25

■ revenue · ■ net income, by fiscal year

Revenue$6.44M-78.3%
Net income$183M+485.6%
Operating income-$45.9M+69.5%
Diluted EPS$45.37+481.6%
Cash & equivalents$47.9M-5.2%
Total assets$120M-44.3%
Total liabilities$115M-71.1%
Stockholders' equity-$30.0M+86.7%
Op.: -712.7%L/E: -3.83x

Frequently asked

Is KYNTRA BIO, INC. (KYNB) a buy?
KYNB currently carries a Avoid rating with 4/5 conviction, derived from its latest SEC filings. FibroGen reborn as Kyntra: collapsed revenue, negative equity, one-time paper profit — a binary clinical bet, not an investable business.
What is KYNB's fair value?
A Modified-Graham model based on KYNB's SEC fundamentals estimates a fair value of about $1,724.06. It is an estimate from reported earnings, not a price target.
Is KYNB overvalued or undervalued?
Against a Modified-Graham fair-value estimate, KYNB currently appears undervalued relative to its SEC-grounded earnings power.
What is KYNTRA BIO, INC.'s quality score?
KYNB scores 54.77615788195507/100 (grade C-) on a SEC-grounded quality model spanning value, growth, profitability, financial health and momentum.

Sources: SEC EDGAR (CIK 0000921299, latest 10-Q filed 2026-05-12) · EODHD · Proprietary analysis · as of 7/4/2026, 4:16:41 AM.

›About this recommendation — produced by TENK/calls (tenkcalls.com), Luxembourg · not investment advice

AI-generated analysis, produced by our proprietary engine from SEC filing data.

Investment recommendation produced by TENK/calls (tenkcalls.com), Luxembourg. Completed Jul 4, 2026, 12:16 AM ET. Ratings & methodology: definitions · All recommendations to date: track record · Conflicts: disclosures. Not investment advice.

Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.

Insider activity

Form 4 · SEC

Last 90 days: 1 open-market buy · 0 sales

2026-06-06
Wettig Thane
CEO
Tax198.00 @ $6.71$1.33K
2026-06-06
DeLucia David
Chief Financial Officer
Tax52.00 @ $6.71$348.92
2026-05-14
Wettig Thane
CEO
Buy2.80K @ $7.09$19.9K
2026-03-06
Wettig Thane
CEO
Tax277.00 @ $6.84$1.89K

Earnings history

beat/miss · move
2026-05-11Miss -9.9% est▼ -5.56%8-K ↗
2026-03-16Beat +8.9% est▲ +2.30%8-K ↗
2025-11-10Beat +20.4% est▼ -21.21%8-K ↗
2025-08-11Beat +20.0% est▲ +19.40%8-K ↗
2025-05-12—▼ -4.09%8-K ↗
2025-03-17—▼ -28.25%8-K ↗

Dates from 8-K (Item 2.02); beat/miss = reported EPS vs consensus (Finnhub, recent quarters); move = prior close → close on/after.

Vs tracked universe

compare →

1195 tracked peers · median

TENK Score55 vs 67
Revenue growth-78.3% vs 7.5%
Net margin2848.6% vs 10.0%
Return on equity— vs 12.0%
P/E0.2 vs 26.2