Insider Trading History of Mason Michael

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) of Mason Michael since 2012. This trader's CIK number is 1514291. At the time of last reporting, Mason Michael was the EVP, CFO & Treasurer of Karyopharm Therapeutics Inc.. (stock ticker symbol KPTI). Also see all insider trading activities at Karyopharm Therapeutics Inc..

Note that in the past Mason Michael also reported insider trading activities as an insider of the following companies:

Yearly summary of insider trading at Karyopharm Therapeutics Inc. (KPTI) by Mason Michael

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2024 KPTI 0 $0 48,301 $55,564 0 $0
2023 KPTI 0 $0 25,692 $67,128 0 $0
2022 KPTI 0 $0 6,946 $67,113 0 $0
2021 KPTI 0 $0 2,858 $44,353 8,150 $0

Yearly summary of insider trading at Alnylam Pharmaceuticals, Inc. (ALNY) by Mason Michael

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2018 ALNY 0 $0 36,745 $4,872,460 40,283 $2,559,323
2017 ALNY 0 $0 9,375 $656,250 9,375 $120,750
2015 ALNY 0 $0 4,791 $631,884 4,791 $239,526
2014 ALNY 0 $0 25,912 $2,499,533 20,625 $236,568
2013 ALNY 0 $0 76,575 $2,996,936 76,575 $1,453,000
2012 ALNY 0 $0 25,295 $471,429 25,295 $265,483


Insider trading activities at 2 companies by Mason Michael:

1. Karyopharm Therapeutics Inc. (KPTI)

2. Alnylam Pharmaceuticals, Inc. (ALNY)

Table 1. Insider trading of Karyopharm Therapeutics Inc. (KPTI) by Mason Michael

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2024-09-04 KPTI Sale 7,050 .72 5,090
2024-06-04 KPTI Sale 652 .99 645
2024-03-01 KPTI Sale 6,162 1.20 7,394
2024-02-29 KPTI Sale 27,687 1.17 32,393
2024-02-27 KPTI Sale 2,545 1.32 3,369
2024-02-06 KPTI Sale 4,205 1.59 6,673
2023-09-01 KPTI Sale 6,913 1.33 9,201
2023-06-02 KPTI Sale 631 2.22 1,400
2023-03-01 KPTI Sale 11,205 3.03 33,939
2023-02-27 KPTI Sale 2,802 3.04 8,509
2023-02-06 KPTI Sale 4,141 3.40 14,079
2022-06-03 KPTI Sale 601 6.05 3,638
2022-02-28 KPTI Sale 2,398 10.24 24,550
2022-02-07 KPTI Sale 3,947 9.86 38,925
2021-02-11 KPTI Sale 2,858 15.52 44,353
2021-02-05 KPTI Option Ex 8,150 .00 0

Table 2. Insider trading of Alnylam Pharmaceuticals, Inc. (ALNY) by Mason Michael

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2018-01-04 ALNY Sale 36,745 132.60 4,872,460
2018-01-04 ALNY Option Ex 31,781 80.53 2,559,323
2017-12-30 ALKS Option Ex 8,502 .00 0
2017-05-16 ALNY Option Ex 9,375 12.88 120,750
2017-05-16 ALNY Sale 9,375 70.00 656,250
2015-06-01 ALNY Sale 4,791 131.89 631,884
2015-06-01 ALNY Option Ex 4,791 49.99 239,526
2014-12-15 ALNY Option Ex 20,625 11.47 236,568
2014-12-15 ALNY Sale 22,162 99.42 2,203,456
2014-02-03 ALNY Sale 3,750 78.95 296,077
2013-12-16 ALNY Sale 8,000 60.49 483,888
2013-12-16 ALNY Option Ex 8,000 12.18 97,464
2013-12-02 ALNY Option Ex 3,750 7.10 26,625
2013-12-02 ALNY Sale 3,750 61.84 231,881
2013-07-12 ALNY Sale 14,200 50.00 710,000
2013-07-12 ALNY Option Ex 14,200 31.39 445,738
2013-07-01 ALNY Option Ex 27,000 22.05 595,350
2013-07-01 ALNY Sale 27,000 32.00 864,000
2013-06-17 ALNY Option Ex 23,625 12.18 287,823
2013-06-17 ALNY Sale 23,625 29.93 707,167
2012-11-30 ALNY Sale 3,750 16.93 63,472
2012-11-30 ALNY Option Ex 3,750 7.10 26,625
2012-07-27 ALNY Option Ex 6,250 10.98 68,625
2012-07-27 ALNY Sale 6,250 20.00 125,000
2012-07-16 ALNY Option Ex 15,295 11.13 170,233
2012-07-16 ALNY Sale 15,295 18.50 282,957

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Mason Michael (EVP, CFO & Treasurer of Karyopharm Therapeutics Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.



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