Foster Karen A. (CIK 0001683151)

Latest company ownership

BLFS - BIOLIFE SOLUTIONS INC
Role: Chief Quality and Operations
Shares held
192,838
Last filed at
Nov 28, 2025
Confidence Score
58.0
2025Q4
Confidence Score History
2020Q1 2025Q4

Recent buy/sell transactions

Exec date Filing date Company Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Dec 9, 2025 Dec 17, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 52.5 -519 -0.27% ✓ $13K
Nov 25, 2025 Nov 28, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 53.8 -415 -0.21% ✓ $11.1K
Oct 9, 2025 Oct 14, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 53.8 -419 -0.22% ✓ $11.5K
Sep 11, 2025 Sep 15, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 52.5 -511 -0.26% ✓ $13.7K
Aug 26, 2025 Aug 28, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 53.8 -413 -0.21% ✓ $10.5K
Jul 7, 2025 Jul 9, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 55.0 -400 -0.21% ✓ $8.9K
Jun 10, 2025 Jun 12, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 55.0 -320 -0.16% ✓ $7.6K
May 28, 2025 May 30, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 55.0 -251 -0.13% ✓ $5.6K
Apr 9, 2025 Apr 11, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 55.0 -286 -0.15% ✓ $5.8K
Apr 1, 2025 Apr 3, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 37.5 -7,869 -3.86% ✓ $178.3K
Mar 11, 2025 Mar 13, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 51.3 -1,331 -0.85% ✓ $33.3K
Mar 3, 2025 Mar 5, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 55.0 -324 -0.21% ✓ $8.2K
Feb 12, 2025 Feb 14, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 58.8 -78 -0.05% ✓ $2.1K
Jan 6, 2025 Jan 8, 2025 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 55.0 -328 -0.21% ✓ $8.9K
Nov 26, 2024 Nov 29, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 55.0 -252 -0.16% ✓ $6.9K
Nov 12, 2024 Nov 14, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 58.8 -66 -0.04% ✓ $1.7K
Oct 30, 2024 Nov 1, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 55.0 -277 -0.18% ✓ $6.4K
Jul 18, 2024 Sep 18, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 52.5 -603 -0.38% ✓ $14.6K
May 29, 2024 May 31, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 53.8 -408 -0.26% ✓ $8.9K
May 17, 2024 May 21, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 56.3 -85 -0.05% ✓ $1.9K
Apr 18, 2024 Apr 23, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 53.8 -481 -0.30% ✓ $7.4K
Mar 27, 2024 Mar 29, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 55.0 -395 -0.25% ✓ $7.1K
Mar 8, 2024 Mar 12, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 95.0 +35,600 28.72% ✓ $91.5K
Feb 21, 2024 Feb 23, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 56.3 -87 -0.07% ✓ $1.5K
Jan 19, 2024 Jan 23, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 51.3 -1,198 -0.96% ✓ $20.1K
Jan 2, 2024 Jan 4, 2024 BIOLIFE SOLUTIONS INC Chief Quality and Operations Sell 52.5 -601 -0.48% ✓ $10.1K
Nov 19, 2023 Dec 4, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 55.0 -199 -0.16% ✓ $5.8K
Nov 13, 2023 Nov 15, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 56.3 -114 -0.09% ✓ $1.2K
Sep 24, 2023 Oct 2, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 55.0 -308 -0.25% ✓ $8K
Aug 25, 2023 Aug 29, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 53.8 -410 -0.33% ✓ $4.5K
Aug 14, 2023 Aug 16, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 55.0 -156 -0.12% ✓ $1.9K
Jun 27, 2023 Jun 29, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -590 -0.47% ✓ $13.5K
May 31, 2023 Jun 2, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 53.8 -392 -0.31% ✓ $9.1K
May 15, 2023 May 17, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 56.3 -106 -0.08% ✓ $2K
Mar 31, 2023 May 16, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 51.3 -1,101 -0.87% ✓ $22.1K
Apr 6, 2023 Apr 10, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 48.8 -1,101 -0.90% ✗ $22.1K
Mar 29, 2023 Mar 31, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -390 -0.32% ✗ $8K
Mar 7, 2023 Mar 9, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -175 -0.14% ✗ $4K
Mar 1, 2023 Mar 3, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 48.8 -1,203 -0.96% ✗ $27.4K
Feb 9, 2023 Feb 13, 2023 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -81 -0.06% ✗ $2K
Dec 28, 2022 Dec 30, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 48.8 -605 -0.56% ✗ $10.2K
Nov 29, 2022 Nov 30, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -307 -0.28% ✗ $6.1K
Nov 10, 2022 Nov 14, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -91 -0.08% ✗ $2.1K
Sep 29, 2022 Sep 30, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 48.8 -559 -0.51% ✗ $12.9K
Aug 31, 2022 Sep 1, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -299 -0.27% ✗ $7K
Aug 10, 2022 Aug 11, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -95 -0.09% ✗ $2.2K
Jun 28, 2022 Jun 30, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 50.0 -598 -0.55% ✗ $8.9K
May 27, 2022 Jun 1, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -174 -0.16% ✗ $2.5K
May 13, 2022 May 17, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -58 -0.05% ✗ $714.6
Apr 18, 2022 Apr 19, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 40.0 -16,413 -13.24% ✗ $288.7K
Mar 29, 2022 Mar 31, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 48.8 -547 -0.64% ✗ $12.2K
Mar 1, 2022 Mar 3, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -221 -0.32% ✗ $5.3K
Feb 10, 2022 Feb 14, 2022 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -293 -0.42% ✗ $8.6K
Dec 29, 2021 Dec 30, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 48.8 -625 -0.89% ✗ $24.6K
Nov 30, 2021 Dec 2, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 51.3 -315 -0.45% ✗ $11.8K
Nov 22, 2021 Nov 24, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 17.5 -16,332 -18.75% ✓ $754.4K
Oct 25, 2021 Oct 27, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 17.5 -16,332 -18.75% ✓ $726K
Oct 14, 2021 Oct 18, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 46.3 -1,082 -1.51% ✗ $43.2K
Sep 28, 2021 Sep 30, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 48.8 -610 -0.84% ✗ $26.3K
Sep 27, 2021 Sep 29, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 17.5 -16,332 -18.40% ✓ $729.4K
Aug 26, 2021 Aug 30, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 51.3 -325 -0.45% ✗ $18.6K
Aug 23, 2021 Aug 25, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 17.5 -16,332 -18.33% ✓ $760.1K
Jul 26, 2021 Jul 28, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 17.5 -16,333 -18.33% ✓ $738.9K
Jun 29, 2021 Jul 1, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 48.8 -607 -0.83% ✗ $26.6K
Jun 21, 2021 Jun 22, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 17.5 -16,332 -18.20% ✓ $698.8K
May 28, 2021 Jun 2, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -264 -0.36% ✗ $8.9K
May 24, 2021 May 26, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 17.5 -16,332 -18.15% ✓ $513.5K
Apr 19, 2021 Apr 21, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 17.5 -16,332 -18.15% ✓ $532.1K
Apr 1, 2021 Apr 5, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 42.5 -3,414 -4.60% ✗ $124.7K
Mar 26, 2021 Mar 30, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 42.5 -2,562 -3.77% ✗ $89.7K
Mar 22, 2021 Mar 24, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 17.5 -16,332 -19.37% ✓ $613.4K
Feb 26, 2021 Mar 2, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 51.3 -284 -0.42% ✗ $11.2K
Feb 22, 2021 Feb 24, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 17.5 -16,334 -19.31% ✓ $647.8K
Feb 8, 2021 Feb 19, 2021 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 40.0 -5,821 -2.11% ✗ $409K
Dec 1, 2020 Dec 3, 2020 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -166 -0.33% ✗ $5.9K
Sep 29, 2020 Oct 1, 2020 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 46.3 -977 -1.88% ✗ $28K
Aug 26, 2020 Aug 28, 2020 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -179 -0.34% ✗ $3.7K
May 28, 2020 Jun 1, 2020 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 52.5 -170 -0.33% ✗ $2.9K
Feb 26, 2020 Feb 28, 2020 BIOLIFE SOLUTIONS INC Chief Quality Officer Sell 46.3 -884 -3.60% ✗ $13.3K