de Greef Roderick (CIK 0001241181)

Latest company ownership

Shares held
389,998
Last filed at
Nov 13, 2025
Confidence Score
12.4
2025Q4
Confidence Score History
2019Q2 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Nov 11, 2025 Nov 13, 2025 BIOLIFE SOLUTIONS INC CEO Sell 17.5 -100,000 -20.41% $2.6M
Oct 22, 2025 Oct 24, 2025 BIOLIFE SOLUTIONS INC CEO Sell 27.5 -37,795 -7.16% $1M
Oct 31, 2024 Jan 8, 2025 BIOLIFE SOLUTIONS INC CEO Sell 20.0 -46,896 -10.15% $1.1M
Mar 8, 2024 Mar 12, 2024 BIOLIFE SOLUTIONS INC CEO Sell 87.5 +21,957 4.99% $120.3K
Jan 19, 2024 Jan 23, 2024 BIOLIFE SOLUTIONS INC CEO Sell 51.3 -2,642 -0.60% $44.3K
Jan 19, 2023 Jan 24, 2023 BIOLIFE SOLUTIONS INC Director Sell 42.5 -3,801 -8.65% $88.1K
Jan 19, 2023 Jan 20, 2023 BIOLIFE SOLUTIONS INC Director Buy 95.0 +3,801 10.45% $88.1K
Nov 28, 2022 Nov 30, 2022 BIOLIFE SOLUTIONS INC COO Sell 20.0 -45,405 -56.96% $939.6K
Nov 21, 2022 Nov 23, 2022 BIOLIFE SOLUTIONS INC COO Sell 20.0 -14,000 -14.94% $303.2K
Nov 16, 2022 Nov 18, 2022 BIOLIFE SOLUTIONS INC COO Sell 22.5 -3,000 -3.10% $68K
Nov 14, 2022 Nov 15, 2022 BIOLIFE SOLUTIONS INC COO Sell 20.0 -20,000 -17.14% $477.2K
Oct 7, 2022 Oct 11, 2022 BIOLIFE SOLUTIONS INC COO Sell 42.5 -8,552 -6.83% $194K
Oct 3, 2022 Oct 4, 2022 BIOLIFE SOLUTIONS INC COO Sell 48.8 -1,233 -0.97% $27.1K
Jul 12, 2022 Jul 14, 2022 BIOLIFE SOLUTIONS INC COO Sell 42.5 -9,158 -6.85% $144.6K
Apr 18, 2022 Apr 19, 2022 BIOLIFE SOLUTIONS INC COO Sell 40.0 -18,530 -12.49% $325.9K
Apr 7, 2022 Apr 11, 2022 BIOLIFE SOLUTIONS INC COO Sell 42.5 -10,713 -9.30% $233.8K
Jan 7, 2022 Jan 11, 2022 BIOLIFE SOLUTIONS INC COO Sell 40.0 -10,816 -10.54% $332.6K
Dec 29, 2021 Dec 30, 2021 BIOLIFE SOLUTIONS INC COO Sell 48.8 -705 -0.68% $27.8K
Nov 16, 2021 Nov 18, 2021 BIOLIFE SOLUTIONS INC COO Sell 15.0 -21,000 -16.89% $1.1M
Oct 25, 2021 Oct 27, 2021 BIOLIFE SOLUTIONS INC CFO Sell 42.5 -2,371 -1.87% $105.8K
Oct 14, 2021 Oct 18, 2021 BIOLIFE SOLUTIONS INC CFO Sell 48.8 -1,221 -0.95% $48.8K
Sep 28, 2021 Sep 30, 2021 BIOLIFE SOLUTIONS INC CFO Sell 48.8 -689 -0.54% $29.7K
Aug 17, 2021 Aug 19, 2021 BIOLIFE SOLUTIONS INC CFO Sell 5.0 -46,239 -26.44% $2.1M
Jun 29, 2021 Jul 1, 2021 BIOLIFE SOLUTIONS INC CFO Sell 51.3 -685 -0.39% $30K
Apr 13, 2021 Apr 15, 2021 BIOLIFE SOLUTIONS INC CFO Sell 38.8 -20,919 -2.24% $720.6K
Apr 1, 2021 Apr 5, 2021 BIOLIFE SOLUTIONS INC CFO Sell 42.5 -3,855 -2.07% $140.8K
Mar 26, 2021 Mar 30, 2021 BIOLIFE SOLUTIONS INC CFO Sell 42.5 -2,893 -1.62% $101.3K
Mar 23, 2021 Mar 25, 2021 BIOLIFE SOLUTIONS INC CFO Sell 27.5 -30,000 -5.29% $1.2M
Feb 8, 2021 Feb 19, 2021 BIOLIFE SOLUTIONS INC CFO Sell 40.0 -8,713 -1.21% $551.4K
Nov 12, 2020 Nov 16, 2020 BIOLIFE SOLUTIONS INC CFO Sell 20.0 -30,000 -6.01% $953K
Sep 29, 2020 Oct 1, 2020 BIOLIFE SOLUTIONS INC CFO Sell 42.5 -1,781 -3.07% $51K
Mar 4, 2020 Mar 6, 2020 BIOLIFE SOLUTIONS INC CFO Sell 7.5 -30,000 -27.89% $414.4K
Feb 5, 2020 Feb 7, 2020 BIOLIFE SOLUTIONS INC CFO Sell 7.5 -30,000 -27.89% $418.1K
Jan 6, 2020 Jan 8, 2020 BIOLIFE SOLUTIONS INC CFO Sell 7.5 -30,000 -27.89% $475.2K
Dec 4, 2019 Dec 6, 2019 BIOLIFE SOLUTIONS INC CFO Sell 7.5 -30,000 -27.89% $484.1K
Nov 6, 2019 Nov 8, 2019 BIOLIFE SOLUTIONS INC CFO Sell 7.5 -30,000 -27.89% $513.3K
Oct 2, 2019 Oct 4, 2019 BIOLIFE SOLUTIONS INC CFO Sell 7.5 -30,000 -27.89% $471.3K
Sep 4, 2019 Sep 6, 2019 BIOLIFE SOLUTIONS INC CFO Sell 7.5 -30,000 -27.89% $593.3K
Jul 31, 2019 Aug 2, 2019 BIOLIFE SOLUTIONS INC CFO Sell 7.5 -30,000 -27.89% $568.7K
Jul 1, 2019 Jul 3, 2019 BIOLIFE SOLUTIONS INC CFO Sell 7.5 -30,000 -27.89% $501.6K
Jun 19, 2019 Jun 21, 2019 BIOLIFE SOLUTIONS INC CFO Sell 10.0 -10,000 -27.89% $176K