Tompkins Mark N.

Average Profitability
<0.0001%
Insider Buys Quantity
3
Insider Buys Sum
$1.2M
Insider Sells Quantity
40
Insider Sells Sum
$2.75M

Insider Activity of Tompkins Mark N.

The largest purchase of all time was on 2017-09-26 and amounted to 333334 shares of Exicure, Inc. for $1M.

The largest sale of all time was on 2021-04-06 and amounted to 67904 shares of Amesite Inc. for $284,518.

Biography of Tompkins Mark N.

No biography is available at this moment.

2021-06-01SaleAmesite Inc.
AMST
10 percent owner
35,822
0.0136%
$2.50$89,483-48.62%
2021-05-28SaleAmesite Inc.
AMST
10 percent owner
17,494
0.0067%
$2.39$41,741-45.19%
2021-05-27SaleAmesite Inc.
AMST
10 percent owner
13,600
0.0053%
$2.38$32,436-44.84%
2021-05-26SaleAmesite Inc.
AMST
10 percent owner
22,444
0.0084%
$2.27$51,038-43.4%
2021-05-25SaleAmesite Inc.
AMST
10 percent owner
11,453
0.0043%
$2.24$25,620-41.92%
2021-05-24SaleAmesite Inc.
AMST
10 percent owner
10,243
0.004%
$2.25$23,043-39.82%
2021-05-21SaleAmesite Inc.
AMST
10 percent owner
3,191
0.0012%
$2.20$7,023-39.23%
2021-05-20SaleAmesite Inc.
AMST
10 percent owner
56,437
0.0217%
$2.21$124,726-39.64%
2021-05-19SaleAmesite Inc.
AMST
10 percent owner
44,400
0.0168%
$2.23$98,968-40.53%
2021-05-18SaleAmesite Inc.
AMST
10 percent owner
16,430
0.0063%
$2.19$35,998-37.44%
2021-05-17SaleAmesite Inc.
AMST
10 percent owner
7,395
0.0029%
$2.22$16,432-36.24%
2021-05-14SaleAmesite Inc.
AMST
10 percent owner
40,109
0.0153%
$2.35$94,457-40.13%
2021-05-13SaleAmesite Inc.
AMST
10 percent owner
53,610
0.0217%
$2.30$123,410-34.25%
2021-05-12SaleAmesite Inc.
AMST
10 percent owner
13,705
0.0056%
$2.22$30,384-30.95%
2021-05-11SaleAmesite Inc.
AMST
10 percent owner
11,311
0.0044%
$2.31$26,094-34.36%
2021-05-10SaleAmesite Inc.
AMST
10 percent owner
12,600
0.0048%
$2.50$31,525-38.58%
2021-05-07SaleAmesite Inc.
AMST
10 percent owner
12,711
0.0049%
$2.69$34,218-40.37%
2021-05-06SaleAmesite Inc.
AMST
10 percent owner
13,777
0.0054%
$2.67$36,716-37.55%
2021-05-05SaleAmesite Inc.
AMST
10 percent owner
10,385
0.004%
$2.61$27,063-36.92%
2021-05-04SaleAmesite Inc.
AMST
10 percent owner
51,971
0.0213%
$2.96$154,042-40.86%
Company
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