Insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Synlogic, Inc. (SYBX) since 2015 are shown in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Synlogic, Inc.. Table 2 shows the detailed insider transactions. This company's CIK number is 1527599.
Total stock buying since 2015: $89,031,101.
Total stock sales since 2015: $335,616.
Total stock option exercises since 2015: $0.
| Insider Buying | Insider Sales | Option Exercises | ||||
|---|---|---|---|---|---|---|
| Year | Shares | Value | Shares | Value | Shares | Value |
| 2025 | 0 | $0 | 2,251 | $2,974 | 0 | $0 |
| 2024 | 0 | $0 | 639 | $1,078 | 0 | $0 |
| 2023 | 0 | $0 | 28,033 | $16,146 | 0 | $0 |
| 2022 | 9,500 | $10,640 | 11,544 | $28,235 | 0 | $0 |
| 2019 | 7,500 | $20,550 | 9,000 | $87,749 | 0 | $0 |
| 2018 | 0 | $0 | 18,000 | $197,703 | 0 | $0 |
| 2016 | 0 | $0 | 1,110 | $1,731 | 0 | $0 |
| 2015 | 12,714,273 | $88,999,911 | 0 | $0 | 0 | $0 |
| Trading Period | Insider Buying | Insider Sales | Option Exercises | |||
|---|---|---|---|---|---|---|
| year-month | Shares | Value | Shares | Value | Shares | Value |
| 2025-04 | 0 | $0 | 144 | $172 | 0 | $0 |
| 2025-02 | 0 | $0 | 2,107 | $2,802 | 0 | $0 |
| 2024-10 | 0 | $0 | 79 | $110 | 0 | $0 |
| 2024-04 | 0 | $0 | 560 | $968 | 0 | $0 |
| 2023-04 | 0 | $0 | 28,033 | $16,146 | 0 | $0 |
| 2022-05 | 9,500 | $10,640 | 0 | $0 | 0 | $0 |
| 2022-04 | 0 | $0 | 11,544 | $28,235 | 0 | $0 |
| 2019-12 | 7,500 | $20,550 | 0 | $0 | 0 | $0 |
| 2019-02 | 0 | $0 | 9,000 | $87,749 | 0 | $0 |
| 2018-10 | 0 | $0 | 3,000 | $29,295 | 0 | $0 |
| 2018-09 | 0 | $0 | 6,000 | $76,797 | 0 | $0 |
| 2018-08 | 0 | $0 | 3,000 | $29,290 | 0 | $0 |
| 2018-07 | 0 | $0 | 3,000 | $33,021 | 0 | $0 |
| 2018-06 | 0 | $0 | 3,000 | $29,300 | 0 | $0 |
| 2016-12 | 0 | $0 | 280 | $401 | 0 | $0 |
| 2016-11 | 0 | $0 | 430 | $576 | 0 | $0 |
| 2016-10 | 0 | $0 | 400 | $754 | 0 | $0 |
| 2015-10 | 12,714,273 | $88,999,911 | 0 | $0 | 0 | $0 |
| Trade Date | Insider Name | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-04-02 | Dooley Mary Beth (See Remarks below) | Sale | 144 | 1.20 | 172 |
| 2025-02-03 | Dooley Mary Beth (See Remarks below) | Sale | 2,107 | 1.33 | 2,802 |
| 2024-10-29 | Dooley Mary Beth (Head of Finance) | Sale | 79 | 1.40 | 110 |
| 2024-04-02 | Dooley Mary Beth (Head of Finance) | Sale | 188 | 1.73 | 325 |
| 2024-04-02 | Awad Antoine (Chief Operating Officer) | Sale | 372 | 1.73 | 643 |
| 2023-04-03 | Jensen Michael Vangsted (Chief Financial Officer) | Sale | 2,553 | .58 | 1,470 |
| 2023-04-03 | Awad Antoine (Chief Operating Officer) | Sale | 6,438 | .58 | 3,708 |
| 2023-04-03 | Brennan Aoife (See Remarks) | Sale | 19,042 | .58 | 10,968 |
| 2022-05-24 | Jensen Michael Vangsted (Chief Financial Officer) | Buy | 9,500 | 1.12 | 10,640 |
| 2022-04-04 | Awad Antoine (Chief Operating Officer) | Sale | 2,650 | 2.45 | 6,481 |
| 2022-04-04 | Brennan Aoife (See Remarks) | Sale | 8,894 | 2.45 | 21,754 |
| 2019-12-13 | Shea Richard P (Director) | Buy | 7,500 | 2.74 | 20,550 |
| 2019-02-13 | Miller Paul Francis (Chief Scientific Officer) | Sale | 5,849 | 9.75 | 57,027 |
| 2019-02-12 | Miller Paul Francis (Chief Scientific Officer) | Sale | 3,151 | 9.75 | 30,722 |
| 2018-10-18 | Miller Paul Francis (Chief Scientific Officer) | Sale | 3,000 | 9.77 | 29,295 |
| 2018-09-18 | Miller Paul Francis (Chief Scientific Officer) | Sale | 3,000 | 13.05 | 39,162 |
| 2018-09-05 | Miller Paul Francis (Chief Scientific Officer) | Sale | 3,000 | 12.54 | 37,635 |
| 2018-08-30 | Miller Paul Francis (Chief Scientific Officer) | Sale | 1,342 | 9.76 | 13,092 |
| 2018-08-29 | Miller Paul Francis (Chief Scientific Officer) | Sale | 1,658 | 9.77 | 16,198 |
| 2018-07-18 | Miller Paul Francis (Chief Scientific Officer) | Sale | 3,000 | 11.01 | 33,021 |
| 2018-06-20 | Miller Paul Francis (Chief Scientific Officer) | Sale | 2,054 | 9.78 | 20,077 |
| 2018-06-19 | Miller Paul Francis (Chief Scientific Officer) | Sale | 946 | 9.75 | 9,223 |
| 2016-12-01 | Irvin Jon (Vice President, Finance) | Sale | 280 | 1.43 | 401 |
| 2016-11-11 | Irvin Jon (Vice President, Finance) | Sale | 150 | 1.45 | 217 |
| 2016-11-01 | Irvin Jon (Vice President, Finance) | Sale | 280 | 1.28 | 359 |
| 2016-10-11 | Irvin Jon (Vice President, Finance) | Sale | 150 | 1.82 | 273 |
| 2016-10-03 | Irvin Jon (Vice President, Finance) | Sale | 250 | 1.93 | 481 |
| 2015-10-06 | Mehra Anand | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Florence Anthony A. Jr. (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Sonsini Peter W. (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | New Enterprise Associates 14, L.p. (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Viswanathan Ravi (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Weller Harry R (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Baskett Forest (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Kolluri Krishna Kittu (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Sandell Scott D (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Kerins Patrick J (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Mott David M (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Barrett M James (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Powell Michael | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Barris Peter J (10% Owner) | Buy | 857,142 | 7.00 | 5,999,994 |
| 2015-10-06 | Pfizer Inc (10% Owner) | Buy | 714,285 | 7.00 | 4,999,995 |
Insider trading activities including stock purchases, stock sales, and option exercises of SYBX listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Synlogic, Inc. (symbol SYBX, CIK number 1527599) see the Securities and Exchange Commission (SEC) website.