The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of De Greef Roderick since 2017.
This trader's CIK number is 1241181.
At the time of last reporting, De Greef Roderick was the President and CEO of Biolife Solutions Inc. (stock ticker symbol BLFS).
Also see all insider trading activities at Biolife Solutions Inc.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2017 | TEUM | 275,911 | $30,350 | 0 | $0 | 0 | $0 |
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | BLFS | 0 | $0 | 84,691 | $2,130,576 | 0 | $0 |
| 2024 | BLFS | 0 | $0 | 9,891 | $164,612 | 0 | $0 |
| 2023 | BLFS | 0 | $0 | 3,801 | $88,145 | 4,740 | $0 |
| 2022 | BLFS | 0 | $0 | 147,572 | $3,184,866 | 43,846 | $0 |
| 2021 | BLFS | 0 | $0 | 144,030 | $6,099,076 | 82,403 | $72,829 |
| 2020 | BLFS | 0 | $0 | 121,781 | $2,311,690 | 120,000 | $214,200 |
| 2019 | BLFS | 0 | $0 | 254,500 | $4,395,966 | 250,000 | $427,900 |
| 2018 | BLFS | 0 | $0 | 95,000 | $1,242,050 | 95,000 | $166,000 |
1. Elephant Talk Communications Inc (TEUM)
2. Biolife Solutions Inc (BLFS)
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2017-02-19 | TEUM | Buy | 275,911 | .11 | 30,350 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-10-22 | BLFS | Sale | 37,795 | 27.30 | 1,031,803 |
| 2024-10-31 | BLFS | Sale | 46,896 | 23.43 | 1,098,773 |
| 2024-03-12 | BLFS | Sale | 7,249 | 16.60 | 120,333 |
| 2024-01-19 | BLFS | Sale | 2,642 | 16.76 | 44,279 |
| 2023-03-31 | BLFS | Option Ex | 4,740 | .00 | 0 |
| 2023-01-19 | BLFS | Sale | 3,801 | 23.19 | 88,145 |
| 2022-11-28 | BLFS | Sale | 10,000 | 21.09 | 210,950 |
| 2022-11-29 | BLFS | Sale | 1,500 | 20.20 | 30,300 |
| 2022-11-30 | BLFS | Sale | 33,905 | 20.59 | 698,103 |
| 2022-11-23 | BLFS | Sale | 4,500 | 21.71 | 97,695 |
| 2022-11-21 | BLFS | Sale | 9,500 | 21.63 | 205,485 |
| 2022-11-16 | BLFS | Sale | 1,500 | 23.21 | 34,815 |
| 2022-11-18 | BLFS | Sale | 1,500 | 22.13 | 33,195 |
| 2022-11-14 | BLFS | Sale | 20,000 | 24.05 | 481,000 |
| 2022-10-07 | BLFS | Sale | 8,552 | 22.69 | 194,044 |
| 2022-10-03 | BLFS | Sale | 1,233 | 21.95 | 27,064 |
| 2022-10-03 | BLFS | Sale | 1,233 | 21.95 | 27,064 |
| 2022-10-03 | BLFS | Sale | 1,233 | 21.95 | 27,064 |
| 2022-10-03 | BLFS | Sale | 1,233 | 21.95 | 27,064 |
| 2022-10-03 | BLFS | Sale | 1,233 | 21.95 | 27,064 |
| 2022-10-03 | BLFS | Sale | 1,233 | 21.95 | 27,064 |
| 2022-07-12 | BLFS | Sale | 9,158 | 15.79 | 144,604 |
| 2022-04-18 | BLFS | Sale | 18,530 | 17.59 | 325,942 |
| 2022-04-12 | BLFS | Option Ex | 43,846 | .00 | 0 |
| 2022-04-07 | BLFS | Sale | 10,713 | 21.82 | 233,757 |
| 2022-01-07 | BLFS | Sale | 10,816 | 30.75 | 332,592 |
| 2021-12-29 | BLFS | Sale | 705 | 39.37 | 27,755 |
| 2021-11-18 | BLFS | Sale | 7,000 | 50.75 | 355,250 |
| 2021-11-17 | BLFS | Sale | 7,000 | 51.08 | 357,560 |
| 2021-11-16 | BLFS | Sale | 7,000 | 51.39 | 359,730 |
| 2021-10-25 | BLFS | Sale | 2,371 | 44.62 | 105,794 |
| 2021-10-14 | BLFS | Sale | 1,221 | 39.97 | 48,803 |
| 2021-09-28 | BLFS | Sale | 689 | 43.12 | 29,709 |
| 2021-08-19 | BLFS | Sale | 12,000 | 45.12 | 541,440 |
| 2021-08-17 | BLFS | Sale | 12,000 | 44.81 | 537,720 |
| 2021-08-18 | BLFS | Sale | 22,239 | 44.70 | 993,972 |
| 2021-06-29 | BLFS | Sale | 685 | 43.75 | 29,968 |
| 2021-04-15 | BLFS | Sale | 5,000 | 33.69 | 168,450 |
| 2021-04-14 | BLFS | Sale | 5,000 | 33.83 | 169,150 |
| 2021-04-13 | BLFS | Sale | 10,919 | 35.08 | 383,038 |
| 2021-04-13 | BLFS | Option Ex | 10,919 | 1.70 | 18,529 |
| 2021-04-01 | BLFS | Option Ex | 9,932 | .00 | 0 |
| 2021-04-01 | BLFS | Sale | 3,855 | 36.53 | 140,823 |
| 2021-03-26 | BLFS | Sale | 2,893 | 35.01 | 101,283 |
| 2021-03-25 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2021-03-23 | BLFS | Sale | 10,000 | 41.83 | 418,300 |
| 2021-03-24 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2021-03-23 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2021-03-25 | BLFS | Sale | 10,000 | 37.71 | 377,100 |
| 2021-03-24 | BLFS | Sale | 10,000 | 40.18 | 401,800 |
| 2021-02-19 | BLFS | Sale | 4,509 | 40.76 | 183,786 |
| 2021-02-18 | BLFS | Sale | 4,520 | 40.67 | 183,828 |
| 2021-02-08 | BLFS | Option Ex | 31,552 | .00 | 0 |
| 2021-02-17 | BLFS | Sale | 4,424 | 41.55 | 183,817 |
| 2020-11-16 | BLFS | Sale | 10,000 | 31.33 | 313,300 |
| 2020-11-16 | BLFS | Option Ex | 10,000 | 1.76 | 17,600 |
| 2020-11-13 | BLFS | Sale | 10,000 | 31.87 | 318,700 |
| 2020-11-12 | BLFS | Sale | 10,000 | 32.10 | 321,000 |
| 2020-11-13 | BLFS | Option Ex | 10,000 | 1.76 | 17,600 |
| 2020-11-12 | BLFS | Option Ex | 10,000 | 1.76 | 17,600 |
| 2020-09-29 | BLFS | Sale | 1,781 | 28.63 | 50,990 |
| 2020-03-06 | BLFS | Sale | 10,000 | 13.77 | 137,700 |
| 2020-03-05 | BLFS | Sale | 10,000 | 13.72 | 137,200 |
| 2020-03-06 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2020-03-04 | BLFS | Sale | 10,000 | 13.95 | 139,500 |
| 2020-03-05 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2020-03-04 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2020-02-07 | BLFS | Sale | 10,000 | 13.32 | 133,200 |
| 2020-02-06 | BLFS | Sale | 10,000 | 14.43 | 144,300 |
| 2020-02-07 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2020-02-05 | BLFS | Sale | 10,000 | 14.06 | 140,600 |
| 2020-02-06 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2020-02-05 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2020-01-06 | BLFS | Option Ex | 10,000 | 1.76 | 17,600 |
| 2020-01-07 | BLFS | Option Ex | 10,000 | 1.76 | 17,600 |
| 2020-01-06 | BLFS | Sale | 10,000 | 15.90 | 159,000 |
| 2020-01-08 | BLFS | Option Ex | 10,000 | 1.76 | 17,600 |
| 2020-01-07 | BLFS | Sale | 10,000 | 15.46 | 154,600 |
| 2020-01-08 | BLFS | Sale | 10,000 | 16.16 | 161,600 |
| 2019-12-06 | BLFS | Sale | 10,000 | 16.21 | 162,100 |
| 2019-12-05 | BLFS | Sale | 10,000 | 16.19 | 161,900 |
| 2019-12-06 | BLFS | Option Ex | 10,000 | 1.76 | 17,600 |
| 2019-12-04 | BLFS | Sale | 10,000 | 16.01 | 160,100 |
| 2019-12-05 | BLFS | Option Ex | 10,000 | 1.76 | 17,600 |
| 2019-12-04 | BLFS | Option Ex | 10,000 | 1.76 | 17,600 |
| 2019-11-08 | BLFS | Sale | 10,000 | 16.44 | 164,400 |
| 2019-11-07 | BLFS | Sale | 10,000 | 17.08 | 170,799 |
| 2019-11-08 | BLFS | Option Ex | 10,000 | 1.76 | 17,600 |
| 2019-11-06 | BLFS | Sale | 10,000 | 17.81 | 178,100 |
| 2019-11-07 | BLFS | Option Ex | 10,000 | 1.76 | 17,600 |
| 2019-11-06 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-10-03 | BLFS | Sale | 10,000 | 15.74 | 157,400 |
| 2019-10-04 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-10-02 | BLFS | Sale | 10,000 | 15.76 | 157,600 |
| 2019-10-03 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-10-02 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-10-04 | BLFS | Sale | 10,000 | 15.63 | 156,300 |
| 2019-09-05 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-09-04 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-09-06 | BLFS | Sale | 10,000 | 19.88 | 198,800 |
| 2019-09-05 | BLFS | Sale | 10,000 | 19.99 | 199,899 |
| 2019-09-06 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-09-04 | BLFS | Sale | 10,000 | 19.46 | 194,600 |
| 2019-07-31 | BLFS | Sale | 10,000 | 19.17 | 191,700 |
| 2019-08-02 | BLFS | Sale | 10,000 | 18.33 | 183,299 |
| 2019-08-01 | BLFS | Sale | 10,000 | 19.37 | 193,700 |
| 2019-07-31 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-08-02 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-08-01 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-07-03 | BLFS | Sale | 10,000 | 16.09 | 160,900 |
| 2019-07-02 | BLFS | Sale | 10,000 | 16.84 | 168,400 |
| 2019-07-03 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-07-01 | BLFS | Sale | 10,000 | 17.23 | 172,300 |
| 2019-07-02 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-07-01 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-06-19 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2019-06-19 | BLFS | Sale | 10,000 | 17.60 | 176,000 |
| 2019-05-23 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2019-05-22 | BLFS | Sale | 4,500 | 18.06 | 81,270 |
| 2019-05-23 | BLFS | Sale | 10,000 | 17.80 | 178,000 |
| 2019-05-16 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2019-05-16 | BLFS | Sale | 10,000 | 16.76 | 167,600 |
| 2019-04-17 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2019-04-17 | BLFS | Sale | 10,000 | 16.53 | 165,300 |
| 2019-03-20 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2019-03-20 | BLFS | Sale | 10,000 | 19.83 | 198,299 |
| 2019-02-20 | BLFS | Sale | 10,000 | 17.23 | 172,300 |
| 2019-02-20 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2019-01-17 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2019-01-17 | BLFS | Sale | 10,000 | 12.49 | 124,900 |
| 2018-12-19 | BLFS | Sale | 10,000 | 10.67 | 106,700 |
| 2018-12-19 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2018-10-21 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2018-10-21 | BLFS | Sale | 10,000 | 10.00 | 100,000 |
| 2018-10-17 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2018-10-17 | BLFS | Sale | 10,000 | 12.95 | 129,500 |
| 2018-09-19 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2018-09-19 | BLFS | Sale | 10,000 | 17.22 | 172,200 |
| 2018-08-16 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2018-08-16 | BLFS | Sale | 10,000 | 19.10 | 191,000 |
| 2018-07-18 | BLFS | Option Ex | 10,000 | 1.81 | 18,100 |
| 2018-07-18 | BLFS | Sale | 10,000 | 20.00 | 200,000 |
| 2018-05-31 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2018-05-31 | BLFS | Sale | 10,000 | 10.44 | 104,400 |
| 2019-05-29 | BLFS | Option Ex | 15,000 | 1.64 | 24,600 |
| 2019-05-25 | BLFS | Sale | 10,000 | 9.35 | 93,500 |
| 2019-05-25 | BLFS | Option Ex | 10,000 | 1.64 | 16,400 |
| 2019-05-29 | BLFS | Sale | 15,000 | 9.65 | 144,750 |
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 De Greef Roderick (President and CEO of Biolife Solutions Inc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.