Insider Trading activities of Seres Therapeutics, Inc. insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Seres Therapeutics, Inc. since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Seres Therapeutics, Inc. since year 2005. Table 2 shows the detailed insider transactions of Seres Therapeutics, Inc. since 2005. The reporting company's ticker symbol is MCRB. The reporting company's CIK number is 1609809.
The total value of stock buying since 2005 is $0.
The total value of stock sales since 2005 is $50,492,926.
The total value of stock option exercises since 2005 is $1,543,726.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Seres Therapeutics, Inc. (MCRB).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2018-01 0 $0 12,338 $135,962 75,741 $28,571
2017-12 0 $0 1,623 $16,457 5,000 $0
2017-07 0 $0 0 $0 100,604 $71,428
2016-08 0 $0 9,390 $102,069 0 $0
2016-07 0 $0 225,860 $7,121,935 394,720 $872,957
2016-06 0 $0 187,924 $5,804,506 154,534 $177,217
2016-05 0 $0 1,091,648 $30,095,205 238,598 $169,402
2016-04 0 $0 239,208 $6,662,910 151,568 $121,823
2016-03 0 $0 22,526 $553,882 13,136 $102,328

Table 2. Detailed insider stock purchases, sales, and option exercises of Seres Therapeutics, Inc. insiders (MCRB)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2018-01-26 Aunins John G. (See Remarks) Sale 1,738 11.02 19,152
2018-01-26 Aunins John G. (See Remarks) Option Ex 5,000 .00 0
2018-01-26 Trucksis Michele (See Remarks) Sale 2,607 11.02 28,729
2018-01-26 Trucksis Michele (See Remarks) Option Ex 7,500 .00 0
2018-01-26 Shaff Eric D. (See Remarks) Sale 2,780 11.02 30,635
2018-01-26 Shaff Eric D. (See Remarks) Option Ex 8,000 .00 0
2018-01-26 Desrosier Thomas (See Remarks) Sale 3,475 11.02 38,294
2018-01-26 Desrosier Thomas (See Remarks) Option Ex 10,000 .00 0
2018-01-26 Cook David N (See Remarks) Sale 1,738 11.02 19,152
2018-01-26 Cook David N (See Remarks) Option Ex 5,000 .00 0
2018-01-24 Pomerantz Roger (President and CEO) Option Ex 40,241 .71 28,571
2017-12-19 Aunins John G. (Chief Technology Officer & EVP) Sale 1,623 10.14 16,457
2017-12-19 Aunins John G. (Chief Technology Officer & EVP) Option Ex 5,000 .00 0
2017-07-18 Pomerantz Roger (President and CEO) Option Ex 100,604 .71 71,428
2016-08-29 Aunins John G. (Chief Technology Officer & EVP) Sale 9,390 10.87 102,069
2016-07-28 Trucksis Michele (Chief Medical Officer and EVP) Sale 4,156 35.18 146,208
2016-07-28 Trucksis Michele (Chief Medical Officer and EVP) Option Ex 4,156 15.77 65,540
2016-07-27 Aunins John G. (Chief Technology Officer & EVP) Sale 9,250 35.00 323,750
2016-07-27 Trucksis Michele (Chief Medical Officer and EVP) Sale 38,064 35.14 1,337,530
2016-07-27 Trucksis Michele (Chief Medical Officer and EVP) Option Ex 38,064 15.77 600,269
2016-07-27 Pomerantz Roger (President and CEO) Sale 20,000 35.00 700,000
2016-07-27 Pomerantz Roger (President and CEO) Option Ex 20,000 .71 14,200
2016-07-25 Aunins John G. (Chief Technology Officer & EVP) Sale 9,390 34.18 320,950
2016-07-22 Aunins John G. (Chief Technology Officer & EVP) Option Ex 187,500 .48 90,000
2016-07-06 Pomerantz Roger (President and CEO) Sale 35,435 29.54 1,046,572
2016-07-06 Pomerantz Roger (President and CEO) Option Ex 35,435 .71 25,158
2016-07-05 Pomerantz Roger (President and CEO) Sale 52,776 29.61 1,562,961
2016-07-05 Pomerantz Roger (President and CEO) Option Ex 52,776 .71 37,470
2016-07-01 Pomerantz Roger (President and CEO) Sale 56,789 29.65 1,683,964
2016-07-01 Pomerantz Roger (President and CEO) Option Ex 56,789 .71 40,320
2016-06-30 Shaff Eric D. (CFO and EVP) Sale 4,533 29.54 133,904
2016-06-30 Shaff Eric D. (CFO and EVP) Option Ex 4,533 7.79 35,312
2016-06-28 Shaff Eric D. (CFO and EVP) Sale 1,667 28.85 48,092
2016-06-28 Shaff Eric D. (CFO and EVP) Option Ex 1,667 7.79 12,985
2016-06-27 Aunins John G. (Chief Technology Officer & EVP) Sale 9,390 27.23 255,689
2016-06-27 Shaff Eric D. (CFO and EVP) Sale 3,334 28.00 93,352
2016-06-27 Shaff Eric D. (CFO and EVP) Option Ex 3,334 7.79 25,971
2016-06-02 Pomerantz Roger (President and CEO) Sale 74,049 32.39 2,398,743
2016-06-02 Pomerantz Roger (President and CEO) Option Ex 74,049 .71 52,574
2016-06-02 Cook David N (Chief Scientific Officer & EVP) Sale 8,000 31.00 248,000
2016-06-01 Pomerantz Roger (President and CEO) Sale 70,951 30.39 2,155,846
2016-06-01 Pomerantz Roger (President and CEO) Option Ex 70,951 .71 50,375
2016-06-01 Cook David N (Chief Scientific Officer & EVP) Sale 16,000 29.43 470,880
2016-05-31 Aunins John G. (Chief Technology Officer & EVP) Sale 14,015 30.30 424,584
2016-05-25 Kania Edwin M Jr (10% Owner) Sale 1,000,000 27.60 27,600,000
2016-05-24 Pomerantz Roger (President and CEO) Sale 9,801 30.00 294,030
2016-05-24 Pomerantz Roger (President and CEO) Option Ex 9,801 .71 6,958
2016-05-18 Pomerantz Roger (President and CEO) Option Ex 160,965 .71 114,285
2016-05-06 Pomerantz Roger (President and CEO) Sale 8,507 24.69 210,037
2016-05-06 Pomerantz Roger (President and CEO) Option Ex 8,507 .71 6,039
2016-05-05 Pomerantz Roger (President and CEO) Sale 30,027 25.91 777,999
2016-05-05 Pomerantz Roger (President and CEO) Option Ex 30,027 .71 21,319
2016-05-04 Pomerantz Roger (President and CEO) Sale 29,298 26.91 788,555
2016-05-04 Pomerantz Roger (President and CEO) Option Ex 29,298 .71 20,801
2016-04-25 Aunins John G. (Chief Technology Officer & EVP) Sale 18,640 31.94 595,361
2016-04-07 Pomerantz Roger (President and CEO) Sale 9,212 30.00 276,360
2016-04-07 Pomerantz Roger (President and CEO) Option Ex 9,212 .59 5,481
2016-04-07 Cook David N (Chief Scientific Officer & EVP) Sale 8,000 31.00 248,000
2016-04-04 Shaff Eric D. (CFO and EVP) Sale 6,568 28.85 189,486
2016-04-04 Shaff Eric D. (CFO and EVP) Option Ex 6,568 7.79 51,164
2016-04-04 Pomerantz Roger (President and CEO) Sale 44,825 29.26 1,311,489
2016-04-04 Pomerantz Roger (President and CEO) Option Ex 44,825 .48 21,516
2016-04-04 Cook David N (Chief Scientific Officer & EVP) Sale 8,000 28.00 224,000
2016-04-01 Pomerantz Roger (President and CEO) Sale 90,963 26.64 2,423,254
2016-04-01 Pomerantz Roger (President and CEO) Option Ex 90,963 .48 43,662
2016-04-01 Cook David N (Chief Scientific Officer & EVP) Sale 53,000 26.32 1,394,960
2016-03-31 Shaff Eric D. (CFO and EVP) Sale 7,663 25.82 197,820
2016-03-31 Shaff Eric D. (CFO and EVP) Option Ex 7,663 7.79 59,694
2016-03-28 Aunins John G. (Chief Technology Officer & EVP) Sale 9,390 23.89 224,327
2016-03-28 Shaff Eric D. (CFO and EVP) Sale 5,473 24.07 131,735
2016-03-28 Shaff Eric D. (CFO and EVP) Option Ex 5,473 7.79 42,634

Insider trading activities including stock purchases, stock sales, and option exercises of MCRB listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Seres Therapeutics, Inc. (symbol MCRB, CIK number 1609809) see the Securities and Exchange Commission (SEC) website.