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Michael Kauffman

Track

Insider profile

Currently holds positions in Karyopharm Therapeutics Inc, Kezar Life Sciences Inc and Verastem Inc

Performance

Overall performance
3.9
Performance over holding periods
3.9
30 days 90 days 120 days
Average return 20% 8.2% 15.1%
Success rate 77% 68% 82%
Transactions
13 0% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance

Positions

Position Company Period
Co-Founder, Chief Executive Officer and Director Karyopharm Therapeutics Inc None -
Independent Director Kezar Life Sciences Inc Dec. 1, 2016 -
Lead Independent Director Verastem Inc June 14, 2016 -
Independent Director Verastem Inc Dec. 1, 2013 - June 14, 2016
Independent Director EPIRUS Biopharmaceuticals Inc June 1, 2006 - July 15, 2014
Director Verastem Inc Nov. 26, 2012 - Dec. 1, 2013
Michael Kauffman's trades of Verastem Inc's stock


Subscribe to get access to the transaction volume chart and in-chart transaction details
• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2025-11-25 2025-11-21
US Verastem Inc (VSTM)
PlS Planned sale
53,817 -15.3%
389.97
US$3,043,744 		53,817 -15.3% 389.97 US$3,043,744
2025-11-21 2025-11-21
US Verastem Inc (VSTM)
PrS Proposed sale
30,465
35.91
US$4,531,021 		30,465 35.91 US$4,531,021
2024-06-07 2024-06-05
S Sale
6,544 -22.3%
380.28
US$706,456 		6,544 -22.3% 380.28 US$706,456
2024-06-05 2024-06-05
PrS Proposed sale
5,900
1.43
US$8,437 		5,900 1.43 US$8,437
2022-03-02 2022-02-28
S Sale
6,226 -0.7%
10.24
US$63,739 		6,226 -0.7% 10.24 US$63,739
2022-03-02 2022-02-28
S Sale
6,226 -0.9%
10.24
US$63,739 		6,226 -0.9% 10.24 US$63,739
2022-02-22 2022-02-17
S Sale
9,088 -1.0%
12.12
US$110,177 		9,088 -1.0% 12.12 US$110,177
2022-02-22 2022-02-17
S Sale
9,079 -1.3%
12.12
US$110,068 		9,079 -1.3% 12.12 US$110,068
2022-02-09 2022-02-07
S Sale
6,707 -0.7%
9.86
US$66,144 		6,707 -0.7% 9.86 US$66,144
2022-02-09 2022-02-07
S Sale
6,764 -0.9%
9.86
US$66,707 		6,764 -0.9% 9.86 US$66,707
2022-01-05 2022-01-03
PlS Planned sale
5,000 -7.3%
16.45
US$82,250 		5,000 -7.3% 16.45 US$82,250
2021-03-23 2021-03-18
PlS Planned sale
4,000 -0.6%
12.39
US$49,553 		4,000 -0.6% 12.39 US$49,553
2021-02-22 2021-02-18
S Sale
9,495 -1.2%
14.83
US$140,822 		9,495 -1.2% 14.83 US$140,822
2021-02-22 2021-02-18
S Sale
9,495 -1.6%
14.83
US$140,822 		9,495 -1.6% 14.83 US$140,822
2021-02-17 2021-02-11
S Sale
6,642 -0.9%
15.52
US$103,077 		6,642 -0.9% 15.52 US$103,077
2021-02-17 2021-02-11
S Sale
6,601 -1.2%
15.52
US$102,441 		6,601 -1.2% 15.52 US$102,441
2020-10-14 2020-10-12
PlS Planned sale
7,500 -1.0%
14.89
US$111,682 		7,500 -1.0% 14.89 US$111,682
2020-08-18 2020-08-17
PlS Planned sale
1,477 -0.2%
15.00
US$22,155 		1,477 -0.2% 15.00 US$22,155
2020-07-17 2020-07-15
PlS Planned sale
7,500 -1.0%
19.43
US$145,723 		7,500 -1.0% 19.43 US$145,723
2020-07-13 2020-07-10
PlS Planned sale
300 -0.1%
19.71
US$5,912 		300 -0.1% 19.71 US$5,912
2020-07-13 2020-07-10
PlS Planned sale
7,200 -1.3%
18.98
US$136,627 		7,200 -1.3% 18.98 US$136,627
2020-07-13 2020-07-09
PlS Planned sale
7,500 -1.0%
19.53
US$146,487 		7,500 -1.0% 19.53 US$146,487
2020-06-24 2020-06-22
PlS Planned sale
7,500 -1.0%
20.00
US$150,000 		7,500 -1.0% 20.00 US$150,000
2020-06-17 2020-06-15
PlS Planned sale
357 -0.0%
16.20
US$5,783 		357 -0.0% 16.20 US$5,783
2020-06-17 2020-06-15
PlS Planned sale
7,143 -0.9%
16.38
US$116,996 		7,143 -0.9% 16.38 US$116,996
2020-06-11 2020-06-10
PlS Planned sale
7,500 -1.3%
18.13
US$135,944 		7,500 -1.3% 18.13 US$135,944
2020-06-11 2020-06-09
PlS Planned sale
7,500 -1.0%
18.50
US$138,746 		7,500 -1.0% 18.50 US$138,746
2020-05-19 2020-05-18
PlS Planned sale
7,500 -1.0%
20.00
US$150,000 		7,500 -1.0% 20.00 US$150,000
2020-05-19 2020-05-15
PlS Planned sale
7,500 -1.0%
18.65
US$139,840 		7,500 -1.0% 18.65 US$139,840
2020-05-11 2020-05-07
PlS Planned sale
7,500 -1.0%
19.63
US$147,205 		7,500 -1.0% 19.63 US$147,205
2020-05-11 2020-05-07
PlS Planned sale
7,500 -1.3%
19.63
US$147,209 		7,500 -1.3% 19.63 US$147,209
2020-04-10 2020-04-09
PlS Planned sale
10,000 -1.8%
20.64
US$206,404 		10,000 -1.8% 20.64 US$206,404
2020-04-10 2020-04-08
PlS Planned sale
10,000 -1.3%
18.61
US$186,115 		10,000 -1.3% 18.61 US$186,115
2020-03-11 2020-03-10
PlS Planned sale
2,068 -0.4%
22.64
US$46,821 		2,068 -0.4% 22.64 US$46,821
2020-03-11 2020-03-10
PlS Planned sale
7,932 -1.4%
22.11
US$175,365 		7,932 -1.4% 22.11 US$175,365
2020-03-11 2020-03-09
PlS Planned sale
3,000 -0.4%
22.38
US$67,141 		3,000 -0.4% 22.38 US$67,141
2020-03-11 2020-03-09
PlS Planned sale
7,000 -0.9%
22.58
US$158,054 		7,000 -0.9% 22.58 US$158,054
2020-02-21 2020-02-19
S Sale
8,817 -1.2%
16.48
US$145,321 		8,817 -1.2% 16.48 US$145,321
2020-02-21 2020-02-19
S Sale
8,817 -1.6%
16.48
US$145,321 		8,817 -1.6% 16.48 US$145,321
2020-02-12 2020-02-11
PlS Planned sale
10,000 -1.8%
17.43
US$174,294 		10,000 -1.8% 17.43 US$174,294
2020-02-12 2020-02-10
PlS Planned sale
10,000 -1.3%
16.93
US$169,327 		10,000 -1.3% 16.93 US$169,327
2020-01-10 2020-01-09
PlS Planned sale
10,000 -1.8%
19.19
US$191,880 		10,000 -1.8% 19.19 US$191,880
2020-01-10 2020-01-08
PlS Planned sale
10,000 -1.3%
18.57
US$185,705 		10,000 -1.3% 18.57 US$185,705
2019-11-05 2019-11-01
PlS Planned sale
10,000 -1.3%
12.00
US$120,000 		10,000 -1.3% 12.00 US$120,000
2019-11-05 2019-11-01
PlS Planned sale
10,000 -1.9%
12.00
US$120,000 		10,000 -1.9% 12.00 US$120,000