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Synlogic, Inc. (SYBX)

Synlogic, Inc. brought in $0 of revenue over the twelve months to June 30, 2026. It posted a net loss of $655K. In fiscal 2025 capital spending exceeded operating cash flow by $4.4M. At June 30, 2026 it held $13.2M in cash. Its latest periodic report to the SEC is the quarterly report (10-Q) filed on August 11, 2026.

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Price
$1.15
-2.54% on the day · September 28, 2026
52-week range $0.54 to $1.87
Market cap
$14.1M
Revenue (last 12 months)
$0

What Synlogic, Inc. does

Synlogic, Inc. is registered with the SEC under industry code SIC 2834 (Pharmaceutical Preparations). Its shares trade on OTC under the ticker SYBX.

Revenue and profit by year

Revenue
FY18: $2.5M $2.5M FY18FY19: $2.2M $2.2M FY19FY20: $545K $545K FY20FY21: $1.8M $1.8M FY21FY22: $1.2M $1.2M FY22FY23: $3.4M $3.4M FY23FY24: $8K $8K FY24FY25: $0 $0 FY25
Net income
FY18: -$48.4M -$48.4M FY18FY19: -$51.4M -$51.4M FY19FY20: -$59.2M -$59.2M FY20FY21: -$60.6M -$60.6M FY21FY22: -$66.1M -$66.1M FY22FY23: -$61.3M -$61.3M FY23FY24: -$23.4M -$23.4M FY24FY25: -$1M -$1M FY25

Fiscal years as reported in annual reports. Amounts in USD.

Key figures

Fiscal yearRevenueOperating incomeNet incomeDiluted EPSFree cash flow
2025$0-$4M-$1M-$0.08-$4.4M
2024$8K-$41M-$23.4M-$1.92-$31.7M
2023$3.4M-$55.2M-$61.3M-$9.42-$51.8M
2022$1.2M-$67.4M-$66.1M-$14.79-$57.6M
2021$1.8M-$60.8M-$60.6M-$17.52-$52.9M
2020$545K-$60.5M-$59.2M-$26.52-$39.9M

Full financial statements: income, balance sheet and cash flow

Next report expected around November 12, 2026.

Estimated from its filing rhythm: 52 weeks after its report of November 13, 2025. Not a date the company has announced. See the report calendar

Latest SEC filings

What Synlogic, Inc. has filed recently, newest first. Each links to the original document on SEC EDGAR.

  1. August 11, 2026
    Quarterly report 10-Q · period to June 30, 2026Diluted EPS -$0.04 versus -$0.04.
  2. July 29, 2026
  3. July 29, 2026
  4. July 29, 2026
  5. July 29, 2026
  6. May 18, 2026
  7. May 14, 2026
    Quarterly report 10-Q · period to March 31, 2026Diluted EPS $0.05 versus $0.03.
  8. April 30, 2026
    Annual report (amended) 10-K/A · period to December 31, 2025Diluted EPS -$0.08 versus -$1.92.
  9. April 6, 2026
  10. March 12, 2026
    Annual report 10-K · period to December 31, 2025Diluted EPS -$0.08 versus -$1.92.

Recent insider filings (Forms 3, 4 and 144): 10, the latest on August 14, 2026. Insider transactions on SEC

Insider trades

What the people running Synlogic, Inc. did with its shares, from the Form 4 filings they must send the SEC within two business days.

No insider trades were reported in the last 90 days.

Bought (open market)
$0
last 90 days
Sold
$0
last 90 days
DateInsiderWhatSharesPriceValueFiling
October 29, 2025 Dooley Mary BethSee Remarks below Sold 157 $1.81 $284.2 Form 4

All insider filings on SEC.gov · Where insiders are buying across the market

Who owns SYBX

Three views from three kinds of SEC filings, each with its own date. They overlap and are not added up.

5% holders

Anyone who owns more than 5% of a class of shares must say so on Schedule 13D (if they may seek to influence the company) or 13G (a passive holder). The latest filing of each holder is shown: 13G filings of the last 2 years, 13D of the last 3.

HolderOf classSharesFiled
Funicular Funds, LP13D, may seek influence with 2 related filers 28.3% 3,312,219 July 29, 2026
New Enterprise Associates 14, L.P.13D, may seek influence with 7 related filers 25% 2,922,772 July 29, 2026
Baselake Partners, LP13G, passive with 2 related filers 9.7% 1,140,000 January 23, 2026
Kryzanowski, John A.13G, passive 6.27% 733,412 February 25, 2025

Latest filings below 5%: Radoff Bradley Louis 4.4% (November 13, 2025).

Largest institutional holders

No Form 13F positions imported for this company yet.

Insiders

Reported holdings of insiders who filed a Form 4 in the last 12 months: the shares each one held after their latest reported transaction. This is not the total held by all insiders.

1 insiders reported holding 12,744 shares in total, about $14.7K at the last price.

HolderSharesAs of
Dooley Mary BethSee Remarks below 12,744 October 29, 2025

Schedule 13D/13G filings on SEC.gov

All filings on SEC EDGAR

Questions about SYBX

What does Synlogic, Inc. do?

Synlogic, Inc. is registered with the SEC under industry code SIC 2834 (Pharmaceutical Preparations). Its shares trade on OTC under the ticker SYBX.

Is Synlogic, Inc. profitable?

No. Over the twelve months to June 30, 2026 it reported a net loss of $655K.

How much revenue does Synlogic, Inc. make?

Over the twelve months to June 30, 2026 Synlogic, Inc. reported revenue of $0.

When did Synlogic, Inc. last report?

Its most recent periodic report is the quarterly report (10-Q) filed on August 11, 2026. It covers the period to June 30, 2026. Its newest filing of any kind is the insider trade from August 14, 2026.

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Where the numbers come from

Financial figures are the values Synlogic, Inc. tagged in its own SEC filings (XBRL), taken from the latest filing for each period, so restatements replace older figures. Revenue, profit and cash flow are for full fiscal years unless marked as the last twelve months, which is the sum of the four most recent quarters. Where a company reports only the full year, the fourth quarter is the year minus the first three.

Prices are delayed end-of-day market data in the listing currency, and market cap moves with the price. P/E is shown only when earnings per share are positive. Nothing here is investment advice.