Insiders · Profile

Mason Michael

EVP, CFO & Treasurer at Karyopharm Therapeutics · VP, Finance and Treasurer at ALNYLAM PHARMACEUTICALS. Filing since 16 Jul 2012. CIK 0001514291

Company
Date
Role
Action
Shares
Amount
Of holding
4 Sep 2024
EVP, CFO & Treasurer
Sold at will
7,050
$5.09K
1.8%
4 Jun 2024
EVP, CFO & Treasurer
Sold at will
652
$645.48
0.2%
1 Mar 2024
EVP, CFO & Treasurer
Sold at will
6,162
$7.39K
1.5%
29 Feb 2024
EVP, CFO & Treasurer
Sold at will
27,687
$32.39K
6.4%
27 Feb 2024
EVP, CFO & Treasurer
Sold at will
2,545
$3.37K
1.0%
6 Feb 2024
EVP, CFO & Treasurer
Sold at will
4,205
$6.67K
1.7%
1 Sep 2023
EVP, CFO & Treasurer
Sold at will
6,913
$9.20K
2.8%
2 Jun 2023
EVP, CFO & Treasurer
Sold on a plan
631
$1.40K
0.3%
1 Mar 2023
EVP, CFO & Treasurer
Sold, plan not stated
11,205
$33.94K
4.4%
27 Feb 2023
EVP, CFO & Treasurer
Sold, plan not stated
2,802
$8.51K
1.7%
6 Feb 2023
EVP, CFO & Treasurer
Sold, plan not stated
4,141
$14.08K
2.5%
3 Jun 2022
EVP, CFO, Treasurer
Sold, plan not stated
601
$3.63K
0.4%
28 Feb 2022
EVP, CFO & Treasurer
Sold, plan not stated
2,398
$24.55K
1.7%
7 Feb 2022
EVP, CFO & Treasurer
Sold, plan not stated
3,947
$38.93K
6.9%
11 Feb 2021
SVP, CFO & Treasurer
Sold, plan not stated
2,858
$44.35K
35.1%
4 Jan 2018
VP, Finance and Treasurer
Sold, plan not stated
36,745
$4.84M
100%
16 May 2017
VP, Finance and Treasurer
Sold, plan not stated
9,375
$656.25K
100%
1 Jun 2015
VP, Finance and Treasurer
Sold, plan not stated
4,791
$631.65K
100%
15 Dec 2014
VP, Finance and Treasurer
Sold, plan not stated
22,162
$2.16M
100%
3 Feb 2014
VP, Finance and Treasurer
Sold, plan not stated
3,750
$294.99K
70.9%
16 Dec 2013
VP, Finance and Treasurer
Sold, plan not stated
8,000
$482.87K
50.5%
2 Dec 2013
VP, Finance and Treasurer
Sold, plan not stated
3,750
$231.86K
32.3%
12 Jul 2013
VP, Finance & Treasurer
Sold, plan not stated
14,200
$710.00K
64.4%
1 Jul 2013
VP, Finance and Treasurer
Sold, plan not stated
27,000
$864.00K
77.5%
17 Jun 2013
VP, Finance and Treasurer
Sold, plan not stated
23,625
$707.16K
75.1%
30 Nov 2012
VP, Finance and Treasurer
Sold, plan not stated
3,750
$63.47K
32.3%
27 Jul 2012
VP, Finance and Treasurer
Sold, plan not stated
6,250
$125.00K
44.3%
16 Jul 2012
VP, Finance & Treasurer
Sold, plan not stated
15,295
$284.04K
66.1%
28 decisions on file.