Mary Beth Dooley

Insider Reports History

Reporting-owner location: Cambridge, MA
Latest reporting-owner signature: /s/ Mary Beth Dooley
Source: Latest parsed Forms 3/4/5 signature
Transaction source note: Rows are grouped by transaction date from the original SEC filing. Open the aggregated insider activity page to review issuer-level activity across dates.

Reported holdings for Mary Beth Dooley

Form 4 holding Principal Executive Officer and Principal Financial Officer

SYNLOGIC, INC.

Security class: Common Stock
Shares / value: 12,744
Estimated value: $23,066
Report date: 29 Oct 2025
Price: $1.81
Ownership: Direct

Insider Reports Filed by Mary Beth Dooley

4 SYBX

SYNLOGIC, INC.

Report period: 29 Oct 2025
Transactions: 1
Transaction value: -$284
Accepted by SEC: 31 Oct 2025, 15:30
Role: Principal Executive Officer and Principal Financial Officer
Next action: Open filing details

4 SYBX

SYNLOGIC, INC.

Report period: 02 Apr 2025
Transactions: 1
Transaction value: -$173
Accepted by SEC: 03 Apr 2025, 16:30
Role: Principal Executive Officer and Principal Financial Officer
Next action: Open filing details

4 SYBX

SYNLOGIC, INC.

Report period: 03 Feb 2025
Transactions: 1
Transaction value: -$2,802
Accepted by SEC: 04 Feb 2025, 17:53
Role: Principal Executive Officer and Principal Financial Officer
Next action: Open filing details

4 SYBX

SYNLOGIC, INC.

Report period: 29 Oct 2024
Transactions: 1
Transaction value: -$111
Accepted by SEC: 30 Oct 2024, 19:21
Role: Head of Finance
Next action: Open filing details

4 SYBX

SYNLOGIC, INC.

Report period: 02 Apr 2024
Transactions: 1
Transaction value: -$325
Accepted by SEC: 04 Apr 2024, 16:00
Role: Head of Finance
Next action: Open filing details

3 SYBX

SYNLOGIC, INC.

Report period: 18 Mar 2024
Transactions: 0
Transaction value: $0
Accepted by SEC: 21 Mar 2024, 17:10
Role: Head of Finance
Next action: Open filing details

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