Desrosier Thomas

Number of records: 38
SEC FilingCompany/StockTrade DateTransactionSharesAvg. PriceTotal% HoldingsGain/Loss
17-May-24 8:14 PM
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Seres Therapeutics, Inc. (MCRB) 15-May-24Option Exercise 2,656----2%
120.58K to 123.23K
17-May-24 8:14 PM
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Seres Therapeutics, Inc. (MCRB) 15-May-24Planned Option Sale 843$0.94$792.42(< 1%)
123.23K to 122.39K
16-Feb-24 9:48 PM
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Seres Therapeutics, Inc. (MCRB) 16-Feb-24Planned Option Sale 3,939$1.08$4,254.12(3%)
124.52K to 120.58K
16-Feb-24 9:48 PM
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Seres Therapeutics, Inc. (MCRB) 15-Feb-24Option Exercise 10,625----9%
113.89K to 124.52K
31-Oct-23 9:39 PM
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Seres Therapeutics, Inc. (MCRB) 30-Oct-23Planned Option Sale 4,156$1.35$5,610.60(4%)
118.05K to 113.89K
31-Oct-23 9:39 PM
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Seres Therapeutics, Inc. (MCRB) 27-Oct-23Option Exercise 13,501----13%
104.55K to 118.05K
06-Jul-22 7:29 PM
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Seres Therapeutics, Inc. (MCRB) 05-Jul-22Grant 63,492$3.15$200,000.00155%
41.05K to 104.55K
28-Jan-20 4:06 PM
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Seres Therapeutics, Inc. (MCRB) 26-Jan-20Option Exercise 25,000----156%
16.05K to 41.05K
29-Jan-19 6:55 PM
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Seres Therapeutics, Inc. (MCRB) 28-Jan-19Market Option Sale 5,471$5.75$31,477.90(25%)
21.52K to 16.05K
(269%)
29-Jan-19 6:55 PM
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Seres Therapeutics, Inc. (MCRB) 26-Jan-19Option Exercise 15,000----230%
6.53K to 21.52K
30-Jan-18 8:58 PM
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Seres Therapeutics, Inc. (MCRB) 26-Jan-18Option Exercise 10,000----100%
0 to 10.0K
30-Jan-18 8:58 PM
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Seres Therapeutics, Inc. (MCRB) 26-Jan-18Market Option Sale 3,475$11.02$38,294.50(35%)
10.0K to 6.53K
(93%)
30-Mar-16 5:04 PM
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Ariad Pharmaceuticals Inc. (ARIA) 18-Feb-16Payment of Exercise 18,370$5.03$92,401.10(33%)
55.0K to 36.63K
(373%)
30-Mar-16 5:04 PM
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Ariad Pharmaceuticals Inc. (ARIA) 18-Feb-16Option Exercise 55,000----100%
0 to 55.0K
21-Jan-15 5:07 PM
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Cubist Pharmaceuticals Inc. (CBST) 21-Jan-15Disposition (other) 7,967$102.00$812,634.00(94%)
8.45K to 0.48K
< 1%
21-Jan-15 5:07 PM
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Cubist Pharmaceuticals Inc. (CBST) 21-Jan-15Disposition (other) 479$102.00$48,858.00(100%)
0.48K to 0
< 1%
02-Jan-14 3:36 PM
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Cubist Pharmaceuticals Inc. (CBST) 31-Dec-14Acquisition (other) 278$42.59$11,841.00108%
0.26K to 0.54K
05-Jan-15 4:03 PM
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Cubist Pharmaceuticals Inc. (CBST) 31-Dec-14Acquisition (other) 148$59.96$8,873.932%
8.3K to 8.45K
31-Dec-14 4:04 PM
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Cubist Pharmaceuticals Inc. (CBST) 29-Dec-14Payment of Exercise 11,978$100.71$1,206,300.00(59%)
20.28K to 8.3K
(< 1%)
31-Dec-14 4:04 PM
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Cubist Pharmaceuticals Inc. (CBST) 29-Dec-14Option Exercise 17,975$45.90$825,052.00781%
2.3K to 20.28K
02-Oct-14 4:01 PM
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Cubist Pharmaceuticals Inc. (CBST) 30-Sep-14Acquisition (other) 48$66.34$3,184.322%
2.25K to 2.3K
53%
02-Jul-14 4:17 PM
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Cubist Pharmaceuticals Inc. (CBST) 30-Jun-14Acquisition (other) 213$57.87$12,325.9011%
1.95K to 2.16K
02-Jul-14 4:17 PM
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Cubist Pharmaceuticals Inc. (CBST) 30-Jun-14Acquisition (other) 89$69.82$6,213.984%
2.16K to 2.25K
45%
16-Apr-14 4:44 PM
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Cubist Pharmaceuticals Inc. (CBST) 16-Apr-14Market Option Sale 768$64.00$49,152.10(28%)
2.72K to 1.95K
(58%)
16-Apr-14 4:44 PM
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Cubist Pharmaceuticals Inc. (CBST) 15-Apr-14Option Exercise 2,377----695%
0.34K to 2.72K
02-Apr-14 4:11 PM
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Cubist Pharmaceuticals Inc. (CBST) 31-Mar-14Acquisition (other) 84$73.15$6,144.6033%
0.26K to 0.34K
38%
02-Jan-14 3:36 PM
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Cubist Pharmaceuticals Inc. (CBST) 31-Dec-13Acquisition (other) 67$68.87$4,614.2935%
0.19K to 0.26K
47%
02-Oct-13 2:59 PM
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Cubist Pharmaceuticals Inc. (CBST) 30-Sep-13Acquisition (other) 93$63.55$5,910.1595%
98 to 0.19K
59%
02-Jul-13 2:39 PM
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Cubist Pharmaceuticals Inc. (CBST) 28-Jun-13Acquisition (other) 98$48.29$4,732.42100%
0 to 98
110%
06-Apr-11 11:44 AM
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Genzyme Corp. (GENZ) 04-Apr-11Disposition 11,375$74.00$841,750.00(48%)
23.62K to 12.24K
(3%)
06-Apr-11 11:44 AM
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Genzyme Corp. (GENZ) 04-Apr-11Option Exercise 11,375----93%
12.24K to 23.62K
06-Apr-11 11:44 AM
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Genzyme Corp. (GENZ) 04-Apr-11Disposition (change in control) 5,738$74.00$424,612.00(47%)
12.24K to 6.5K
(3%)
06-Apr-11 11:44 AM
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Genzyme Corp. (GENZ) 04-Apr-11Disposition (change in control) 6,505$74.00$481,370.00(100%)
6.5K to 0
(3%)
26-May-10 3:14 PM
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Genzyme Corp. (GENZ) 25-May-10Market Option Sale 1,972$45.60$89,923.20(15%)
13.29K to 11.32K
(12%)
26-May-10 3:14 PM
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Genzyme Corp. (GENZ) 24-May-10Option Exercise 5,833----78%
7.46K to 13.29K
29-Apr-09 1:57 PM
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Genzyme Corp. (GENZ) 23-Apr-09Acquisition 3,772$52.10$196,514.00151%
2.5K to 6.27K
1%
08-Aug-08 2:20 PM
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Genzyme Corp. (GENZ) 07-Aug-08Option Exercise 10,725----472%
2.27K to 13.0K
08-Aug-08 2:20 PM
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Genzyme Corp. (GENZ) 07-Aug-08Market Option Sale 10,725$78.99$847,168.00(83%)
13.0K to 2.27K
33%