Insider · CIK 0001435744

DesRosier Thomas

Reports to the SEC for 4 companies · CAMBRIDGE, MA

sec.gov

Transactions

Companies

Filings

CIK

0001435744

Forms 4 and 5

Insider transactions

50 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-08-17	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−82 sh	$4.55	−$373.1	8,117
2026-08-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−133 sh	—	—	265
2026-08-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+245 sh	—	—	8,199
2026-08-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−112 sh	—	—	667
2026-07-08	MCRBSeres Therapeutics, Inc. · Stock Option (right to buy)A Award	See Remarks	AAward	+7,500 sh	—	—	7,500
2026-05-18	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−79 sh	$7.53	−$594.87	7,954
2026-05-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−111 sh	—	—	779
2026-05-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+244 sh	—	—	8,033
2026-05-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−133 sh	—	—	398
2026-03-04	MCRBSeres Therapeutics, Inc. · Stock Option (right to buy)A Award	See Remarks	AAward	+22.5K sh	—	—	22,500
2026-02-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−111 sh	—	—	890
2026-02-15	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−78 sh	$8.47	−$660.66	7,789
2026-02-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−133 sh	—	—	531
2026-02-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+244 sh	—	—	7,867
2025-11-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−112 sh	—	—	1,001
2025-11-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+112 sh	—	—	7,699
2025-11-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−132 sh	—	—	664
2025-11-15	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−76 sh	$17.30	−$1,314.8	7,623
2025-11-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+132 sh	—	—	7,587
2025-08-18	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−76 sh	$16.65	−$1,265.4	7,455
2025-08-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−133 sh	—	—	796
2025-08-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−111 sh	—	—	1,113
2025-08-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+133 sh	—	—	7,420
2025-08-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+111 sh	—	—	7,531
2025-05-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−111 sh	—	—	1,224
2025-05-15	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−79 sh	$7.28	−$575.12	7,287
2025-05-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+111 sh	—	—	7,366
2025-05-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+133 sh	—	—	7,255
2025-05-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−133 sh	—	—	929
2025-02-18	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−4,300 sh	$0.81	−$3,485.15	142,456
2025-02-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−8,907 sh	—	—	26,718
2025-02-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+2,657 sh	—	—	137,849
2025-02-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−2,657 sh	—	—	21,250
2025-02-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+8,907 sh	—	—	146,756
2025-02-07	MCRBSeres Therapeutics, Inc. · Stock Option (Right to Buy)A Award	See Remarks	AAward	+650K sh	—	—	650,000
2024-11-18	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−878 sh	$0.54	−$474.735	135,192
2024-11-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+2,656 sh	—	—	136,070
2024-11-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−2,656 sh	—	—	23,907
2024-10-28	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−4,259 sh	$0.69	−$2,939.136	133,414
2024-10-27	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+13.5K sh	—	—	137,673
2024-10-27	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−13.5K sh	—	—	0
2024-08-16	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−873 sh	$0.84	−$733.32	124,173
2024-08-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−2,656 sh	—	—	26,563
2024-08-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+2,656 sh	—	—	125,046
2024-05-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−2,656 sh	—	—	29,219
2024-05-15	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−843 sh	$0.94	−$792.42	122,390
2024-05-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+2,656 sh	—	—	123,233
2024-02-16	MCRBSeres Therapeutics, Inc.S Sale	See Remarks	SSale	−3,939 sh	$1.08	−$4,254.12	120,577
2024-02-15	MCRBSeres Therapeutics, Inc.M Exercise/Conversion	See Remarks	MExercise/Conversion	+10.6K sh	—	—	124,516
2024-02-15	MCRBSeres Therapeutics, Inc. · Restricted Stock UnitsM Exercise/Conversion	See Remarks	MExercise/Conversion	−10.6K sh	—	—	31,875

Recent filings

Accepted (ET)
Aug 184
DesRosier Thomas0001193125-26-355712
SEC(opens sec.gov)
Jul 104
DesRosier Thomas0001193125-26-300919
SEC(opens sec.gov)
May 194
DesRosier Thomas0001193125-26-230728
SEC(opens sec.gov)
Mar 64
DesRosier Thomas0001193125-26-096678
SEC(opens sec.gov)
Feb 184
DesRosier Thomas0001193125-26-057154
SEC(opens sec.gov)
Nov 184
DesRosier Thomas0001193125-25-286240
SEC(opens sec.gov)
Aug 194
DesRosier Thomas0001193125-25-183436
SEC(opens sec.gov)

Companies

Address

C/O SERES THERAPEUTICS, INC. 101 CAMBRIDGE PARK DRIVE

CAMBRIDGE, MA, 02140