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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adviser; calls are impersonal, generated from SEC filings and a delayed/third-party price feed, and may be wrong or out of date.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›SYBX
SYBX logo

SYBX

SYNLOGIC, INC.

Next earnings Aug 5, 2026

Avoid
$0.70
▲ 0.00%
$0.70▼ -43.47%
over 1Y
L $0.56H $1.83
Earnings Dividend Split Congress buy Congress sellGrouped by date · hover a pin to expand
Today+0.0%
1W+2.7%
1M+0.1%
3M+17.8%
YTD-40.1%
1Y-43.5%
OverviewFinancialsValuationQualityTimelineFilings
Rating
Avoid
Quality
D
Valuation
Fair value
Filings
Flagged
Avoid
Conviction
Horizon
Short (<3mo)
Street · 6 analysts
Sell

Delisted biotech shell with no product, no revenue, and no R&D — a merger-or-bust lottery ticket, not an investable business.

Revenue $0.00 · FY2025

Synlogic is no longer an operating company. Management states plainly in the 10-K that after discontinuing the Synpheny-3 Phase 3 PKU trial in February 2024 (an internal review indicated it was 'unlikely to meet its primary endpoint'), the corporate strategy is now 'pursuing strategic initiatives to enhance stockholder value, including but not limited to, a merger or the sale of the Company.' Nasdaq deemed it a 'public shell' with 'no ongoing research and development activities or active clinical trial,' and the stock was suspended and moved to OTC on January 21, 2026. The numbers confirm the shell: FY2025 revenue was $0.00 (down 100% YoY), R&D collapsed to $43K (down 99.5%), and there are no remaining revenue-generating assets. This is not a company you can value on fundamentals because there is no business left to value.

The one genuine bull point is the balance sheet relative to price. At $0.70 on 11.7M shares the equity is worth roughly $8.2M, versus $14.7M of cash and $11.9M of stockholders' equity — so the stock trades at a discount to net cash. In a clean liquidation or a favorable reverse-merger that number could imply upside. But that is a speculation on deal terms, not an investment, and the cash is bleeding: operating cash flow was -$4.36M in FY2025 and general/administrative shell-maintenance costs (legal, audit, public-company expense) continue to erode the pile while no transaction is guaranteed — 'there can be no assurance that such activities will result in any agreements or transactions.'

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

The options angle

model · matches our verdict
Bear put spread (caution)~30d expiry
  • Long put 0.5 @ ~0.00 est
  • Short put 0.5 @ ~0.00 est
debit $0max +$0max $0

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$1.75M$1.18M$3.37M$8.00K$0.00
Gross profit—————
Operating income-$60.8M-$67.4M-$55.2M-$41.0M-$4.01M
Net income-$60.6M-$66.1M-$61.3M-$23.4M-$1.00M
Diluted EPS-$1.09-$13.83-$9.42-$1.92-$0.08
Net margin-3452.7%-5605.7%-1817.7%-291987.5%—

10-year statements — income, cash flow, balance sheet & CSV export →

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

Key statistics

Valuation

Enterprise value-$6.47M
EV / EBITDA—
EV / Sales—
EV / FCF—
P / FCF—
PEG (trailing)—
Earnings yield-12.3%
FCF yield-53.2%

Quality & risk

ROIC (est.)-26.7%
Free cash flow-$4.36M
Total debt—
Net cash$14.7M
Altman Z-Score-38.77 distress
Piotroski F-Score2/7

Capital returns

Buyback yield—
Dividend yield (est.)—
Shareholder yield—
Shares Δ YoY+0.0%

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. 10-Q Quarterly report2026-05-14

    Q1'26 shell: no revenue, ~$14M cash burning on public-company costs

  2. 10-K/A Restated periodic report2026-04-30

    FY2025 10-K amendment (Part III/governance detail), no new financials

  3. 10-K Annual report2026-03-12

    FY2025: now a shell, delisted, material weakness in ICFR; loss cut to $1M

  4. 8-K/A Amended 8-K2026-01-29

    Amendment updating a prior 8-K disclosure

  5. 8-K Delisting notice2026-01-20

    Nasdaq suspension effective Jan 21; withdrew hearing, shares moved to OTC

  6. 8-K Officer / director change2025-12-16

    Annual meeting vote results plus board/officer change reported

  7. 8-K Delisting notice2025-11-26

    Nasdaq deemed it a public shell, notified of delisting for lack of operations

  8. 10-Q Quarterly report2025-11-13

    Q3'25: zero revenue, no R&D or trials, running as a shell

  9. DEF 14A Proxy statement2025-11-12

    Proxy for annual meeting; routine director/auditor votes

Recent filings

all on EDGAR ↗
25-NSEFiling2026-05-18open ↗10-QPeriod ending 2026-03-312026-05-14open ↗10-K/APeriod ending 2025-12-312026-04-30open ↗SCHEDULE 13D/AFiling2026-04-06open ↗10-KPeriod ending 2025-12-312026-03-12open ↗8-K/APeriod ending 2026-01-162026-01-29open ↗SCHEDULE 13GFiling2026-01-23open ↗8-KPeriod ending 2026-01-162026-01-20open ↗8-KPeriod ending 2025-12-152025-12-16open ↗8-KPeriod ending 2025-11-212025-11-26open ↗10-QPeriod ending 2025-09-302025-11-13open ↗SCHEDULE 13G/AFiling2025-11-13open ↗

Quality score

D
ValueGrowthProfitHealthMom.
Value—
GrowthC
ProfitabilityF
Financial healthB-
MomentumF
  • ✗Revenue growing year-over-year
  • ✗Profitable (positive net income)
  • ✗Return on equity above 15%
  • ✓Liabilities below 2× equity
0.5652-week1.83
Revenue
$0.00
-100.0% YoY
Net margin
—
ROE
-8.5%
P/E
—

SEC fundamentals · FY 2025

'21'22'23'24'25

■ revenue · ■ net income, by fiscal year

Revenue$0.00-100.0%
Net income-$1.00M+95.7%
Operating income-$4.01M+90.2%
Diluted EPS-$0.08+95.8%
Cash & equivalents$14.7M-22.2%
Total assets$15.4M-22.1%
Total liabilities$3.81M-35.4%
Stockholders' equity$11.9M-7.0%
L/E: 0.32x

Frequently asked

Is SYNLOGIC, INC. (SYBX) a buy?
SYBX currently carries a Avoid rating with 4/5 conviction, derived from its latest SEC filings. Delisted biotech shell with no product, no revenue, and no R&D — a merger-or-bust lottery ticket, not an investable business.
What is SYNLOGIC, INC.'s quality score?
SYBX scores 43.64468503937008/100 (grade D) on a SEC-grounded quality model spanning value, growth, profitability, financial health and momentum.

Sources: SEC EDGAR (CIK 0001527599, latest 10-Q filed 2026-05-14) · EODHD · Proprietary analysis · as of 7/4/2026, 9:34:48 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, 5:34 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
2025-10-29
Dooley Mary Beth
See Remarks below
Sell157.00 @ $1.81$284.17
2025-04-26
Shea Richard P
Director
Award15.0K
2025-04-26
Flynn James P
Director
Award15.0K
2025-04-02
Dooley Mary Beth
See Remarks below
Sell144.00 @ $1.20$172.80
2025-02-03
Dooley Mary Beth
See Remarks below
Sell2.11K @ $1.33$2.80K
2024-10-29
Dooley Mary Beth
Head of Finance
Sell79.00 @ $1.40$110.60
2024-04-02
Dooley Mary Beth
Head of Finance
Sell188.00 @ $1.73$325.24
2024-04-02
Awad Antoine
Chief Operating Officer
Sell372.00 @ $1.73$643.56

Earnings history

beat/miss · move
2024-11-12Beat +94.6% est▼ -5.97%8-K ↗
2024-08-08Beat +130.8% est▼ -8.72%8-K ↗
2024-05-14Miss -210.9% est▼ -10.00%8-K ↗
2024-03-19—▼ -2.70%8-K ↗
2024-02-12—▼ -46.67%8-K ↗
2023-11-09—▼ -0.54%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 Score44 vs 67
Revenue growth-100.0% vs 7.5%
Net margin— vs 10.0%
Return on equity-8.5% vs 12.0%
P/E— vs 26.2