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About SYNLOGIC, INC. (SYBX)
The SEC lists SYNLOGIC, INC. under CIK 0001527599, in pharmaceutical preparations. We track it alongside the rest of the Health Care sector.
SYBX Form 4 activity by transaction type, last 90 days
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market purchase | 1 | 2,640,845 | - |
| Other acquisition / disposition | 1 | 2,640,845 |
Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.
SYBX insider transactions (Form 4)
54 Form 4 filings on record, the earliest from Oct 30, 2024, newest first.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| New Enterprise Associates 14, L.P. - Director | Other | Warrants (Right to Buy) | 2,640,845 | - footnote F2 | - | |
| New Enterprise Associates 14, L.P. - Director | Open-market purchase | Warrants (Right to Buy) | 2,640,845 | - footnote F2 | - | |
| ||||||
| Mary Beth Dooley - Officer | Open-market sale | Common Stock | 157 footnote F1 | $1.81 | $284 | |
| ||||||
| Richard P. Shea | Grant or award | Common Stock | 15,000 | $0.00 | - | |
| Mary Beth Dooley - Officer | Open-market sale | Common Stock | 79 | $1.40 | $111 | |
SYBX insider trading FAQ
What is the latest insider trade for SYBX?
SYNLOGIC, INC. (SYBX) had 1 insider filing in the last 90 days, with the most recent on 2026-08-14. The full record for SYBX runs to 4 Form 4 filings, the earliest from 2024-10-30. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.
How many insiders are buying SYBX stock?
1 insider purchase of SYBX was filed in the last 90 days.
How many insiders are selling SYBX stock?
No insider sales of SYBX were filed in the last 90 days. 2 sales are on record for this company.
Where can I see SYBX SEC filings (Form 4, 10-K, 10-Q, 8-K)?
This page collects SYBX Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Recent insider filings
4The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - New Enterprise Associates 14, L.P. view on EDGAR
- - Mary Beth Dooley view on EDGAR
- - Richard P. Shea view on EDGAR
- - Mary Beth Dooley view on EDGAR
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Learn more
- How to read insider buying signals
- What an open-market purchase by an insider can and cannot tell you.
- Insider activity in Health Care
- Where SYBX's peers are being bought and sold.
- Every recent Form 4
- The market-wide feed, updated as filings arrive from SEC EDGAR.
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- SYBX on your watchlist
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- Up to 3 months of SYBX price history
- The daily trading plan of ranked insider buys, on a delay, with the plan archive