Stocks
SYBX SYNLOGIC, INC.

SYBX

SYNLOGIC, INC.

Company with tickers: SYBX

CIK

1527599

Shares Outstanding

11,698,919

Price Holdings Short Volume Short Interest Fails to Deliver SEC Filings Earnings Calls Insider Trading Congress Trades

Date	Insider	Role	Type	Shares	Price	Value	After
2025-10-29	Dooley Mary Beth	See Remarks below	Sell	157	$1.81	$284	12,744
2025-04-26	Shea Richard P	Director	Award	15,000	—	—	15,506
2025-04-26	Flynn James P	Director	Award	15,000	—	—	15,000
2025-04-02	Dooley Mary Beth	See Remarks below	Sell	144	$1.20	$173	12,901
2025-02-03	Dooley Mary Beth	See Remarks below	Sell	2,107	$1.33	$2,802	13,045
2024-10-29	Dooley Mary Beth	See Remarks below	Sell	79	$1.40	$111	15,152
2024-04-02	Awad Antoine	Chief Operating Officer	Sell	372	$1.73	$644	33,859
2024-04-02	Dooley Mary Beth	See Remarks below	Sell	188	$1.73	$325	15,231
2024-03-19	Flynn James P	Director	Other	0	—	—	0
2024-03-19	Flynn James P	Director	Award	4,000	—	—	4,000
2024-03-18	Dooley Mary Beth	See Remarks below	Other	15,419	—	—	15,419
2024-03-18	Dooley Mary Beth	See Remarks below	Other	0	—	—	0
2024-02-09	Funicular Funds, LP	10% Owner	Other	3,312,219	—	—	3,312,219
2024-01-02	Hurter Patricia N.	Director	Award	14,678	—	—	14,678
2024-01-02	Barrett Peter	Director	Award	24,923	—	—	24,923
2023-11-10	Awad Antoine	Chief Operating Officer	Award	3,666	—	—	3,666
2023-11-10	Awad Antoine	Chief Operating Officer	Other	3,666	—	—	0
2023-11-10	JENSEN MICHAEL VANGSTED	Chief Financial Officer	Other	15,332	—	—	0
2023-11-10	JENSEN MICHAEL VANGSTED	Chief Financial Officer	Award	15,332	—	—	15,332
2023-11-10	Brennan Aoife	Director, President and CEO	Other	5,591	—	—	0
2023-11-10	Brennan Aoife	Director, President and CEO	Award	5,591	—	—	5,591
2023-10-03	New Enterprise Associates 14, L.P.	10% Owner	Other	0	—	—	0
2023-10-03	New Enterprise Associates 14, L.P.	10% Owner	Other	2,922,773	—	—	2,922,773
2023-06-22	Kelly-Croswell Lisa	Director	Award	30,000	—	—	30,000
2023-06-22	Leschly Nick	Director	Award	30,000	—	—	30,000
2023-06-22	Barrett Peter	Director	Award	30,000	—	—	30,000
2023-06-22	Shea Richard P	Director	Award	30,000	—	—	30,000
2023-06-22	Hurter Patricia N.	Director	Award	30,000	—	—	30,000
2023-06-22	Heffernan Michael Thomas	Director	Award	30,000	—	—	30,000
2023-06-22	Burgess Michael F.	Director	Award	30,000	—	—	30,000
2023-06-22	Mathers Edward T	10% Owner	Award	30,000	—	—	30,000
2023-04-03	JENSEN MICHAEL VANGSTED	Chief Financial Officer	Sell	2,553	$0.58	$1,470	46,947
2023-04-03	Awad Antoine	Chief Operating Officer	Sell	6,438	$0.58	$3,707	74,732
2023-04-03	Brennan Aoife	Director, President and CEO	Sell	19,042	$0.58	$10,964	256,301
2023-01-03	Hurter Patricia N.	Director	Award	91,954	—	—	91,954
2023-01-03	Barrett Peter	Director	Award	156,130	—	—	156,130
2022-06-09	Heffernan Michael Thomas	Director	Award	27,000	—	—	27,000
2022-06-09	Leschly Nick	Director	Award	27,000	—	—	27,000
2022-06-09	Hurter Patricia N.	Director	Award	27,000	—	—	27,000
2022-06-09	Burgess Michael F.	Director	Award	27,000	—	—	27,000
2022-06-09	Barrett Peter	Director	Award	27,000	—	—	27,000
2022-06-09	Mathers Edward T	10% Owner	Award	27,000	—	—	27,000
2022-06-09	Shea Richard P	Director	Award	27,000	—	—	27,000
2022-06-09	Kelly-Croswell Lisa	Director	Award	27,000	—	—	27,000
2022-05-24	JENSEN MICHAEL VANGSTED	Chief Financial Officer	Buy	9,500	$1.12	$10,640	39,500
2022-04-04	Awad Antoine	Chief Operating Officer	Sell	2,650	$2.45	$6,482	81,170
2022-04-04	Brennan Aoife	Director, President and CEO	Sell	8,894	$2.45	$21,754	275,343
2022-03-03	JENSEN MICHAEL VANGSTED	Chief Financial Officer	Other	0	—	—	0
2022-03-03	JENSEN MICHAEL VANGSTED	Chief Financial Officer	Award	230,000	—	—	230,000
2022-03-03	JENSEN MICHAEL VANGSTED	Chief Financial Officer	Award	30,000	—	—	30,000
2022-02-04	Brennan Aoife	Director, President and CEO	Award	434,160	—	—	434,160
2022-02-04	Brennan Aoife	Director, President and CEO	Award	106,920	—	—	284,237
2022-02-04	Awad Antoine	Chief Operating Officer	Award	165,490	—	—	165,490
2022-02-04	Awad Antoine	Chief Operating Officer	Award	40,820	—	—	83,820
2022-01-03	Barrett Peter	Director	Award	49,334	—	—	49,334
2021-12-06	BELOFF GREGG	See Remarks	Award	50,000	—	—	50,000
2021-06-10	Shea Richard P	Director	Award	15,000	—	—	15,000
2021-06-10	Hurter Patricia N.	Director	Award	15,000	—	—	15,000
2021-06-10	Kelly-Croswell Lisa	Director	Award	15,000	—	—	15,000
2021-06-10	Leschly Nick	Director	Award	15,000	—	—	15,000
2021-06-10	Mathers Edward T	10% Owner	Award	15,000	—	—	15,000
2021-06-10	Barrett Peter	Director	Award	12,818	—	—	12,818
2021-06-10	Heffernan Michael Thomas	Director	Award	15,000	—	—	15,000
2021-06-10	Burgess Michael F.	Director	Award	15,000	—	—	15,000
2021-04-20	Khuong Chau Quang	Director	Award	1,666,666	$3.00	$4,999,998	3,696,662
2021-04-20	ORBIMED ADVISORS LLC	10% Owner	Award	1,666,666	$3.00	$4,999,998	3,696,662
2021-03-10	Awad Antoine	Chief Operating Officer	Award	70,000	—	—	70,000
2021-03-10	Awad Antoine	Chief Operating Officer	Award	17,500	—	—	43,000
2021-03-10	Brennan Aoife	Director, President and CEO	Award	71,250	—	—	177,317
2021-03-10	Brennan Aoife	Director, President and CEO	Award	285,000	—	—	285,000
2021-03-10	Riese Richard J.	Chief Medical Officer	Award	70,000	—	—	70,000
2021-03-10	Riese Richard J.	Chief Medical Officer	Award	17,500	—	—	39,000
2021-02-09	Kelly-Croswell Lisa	Director	Other	0	—	—	0
2021-02-09	Kelly-Croswell Lisa	Director	Award	30,000	—	—	30,000
2021-01-04	Barrett Peter	Director	Award	57,498	—	—	57,498
2020-12-08	Heffernan Michael Thomas	Director	Other	0	—	—	0
2020-12-08	Heffernan Michael Thomas	Director	Award	30,000	—	—	30,000
2020-07-30	Awad Antoine	Chief Operating Officer	Other	25,500	—	—	25,500
2020-07-30	Awad Antoine	Chief Operating Officer	Other	0	—	—	0
2020-07-24	Barrett Peter	Director	Award	1,541	—	—	1,541
2020-06-04	Burgess Michael F.	Director	Award	15,000	—	—	15,000
2020-06-04	Hurter Patricia N.	Director	Award	15,000	—	—	15,000
2020-06-04	Shea Richard P	Director	Award	15,000	—	—	15,000
2020-06-04	Khuong Chau Quang	Director	Award	15,000	—	—	15,000
2020-06-04	Barrett Peter	Director	Award	15,000	—	—	15,000
2020-06-04	Leschly Nick	Director	Award	15,000	—	—	15,000
2020-06-04	Mathers Edward T	10% Owner	Award	15,000	—	—	15,000
2020-03-10	Brennan Aoife	Director, President and CEO	Award	185,300	—	—	185,300
2020-03-10	Brennan Aoife	Director, President and CEO	Award	46,300	—	—	106,067
2020-03-10	Riese Richard J.	Chief Medical Officer	Award	13,500	—	—	21,500
2020-03-10	Riese Richard J.	Chief Medical Officer	Award	54,000	—	—	54,000
2020-02-03	Burgess Michael F.	Director	Other	0	—	—	0
2020-02-03	Burgess Michael F.	Director	Award	30,000	—	—	30,000
2020-01-02	Barrett Peter	Director	Award	48,656	—	—	48,656
2019-12-31	Riese Richard J.	Chief Medical Officer	Award	150,000	—	—	150,000