Penbrook Management LLC
- SEC CIK
- 0001381055
- Latest filing
- Jul 23, 2026
BLFS holding history
Biolife Solutions Inc in every 13F filed by Penbrook Management LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.
BLFS overviewAll 13F holders of BLFSFull Q2 2026 holdings
- Shares (Q2 2026)
- 39,705
- Value
- $1.12M
- % of portfolio
- 0.7%
- Quarters held
- 22
- Since Q1 2021
| Quarter | Shares | Value | % of portfolio | Share change | Action | All holders |
|---|---|---|---|---|---|---|
| Q2 2026 | 39,705 | $1.12M | 0.7% | +16,550+71.5% | Added | Holders |
| Q1 2026 | 23,155 | $441.8K | 0.3% | +200+0.9% | Added | Holders |
| Q4 2025 | 22,955 | $555.1K | 0.4% | −200−0.9% | Reduced | Holders |
| Q3 2025 | 23,155 | $590.7K | 0.4% | 00.0% | Unchanged | Holders |
| Q2 2025 | 23,155 | $498.8K | 0.4% | −7,270−23.9% | Reduced | Holders |
| Q1 2025 | 30,425 | $694.9K | 0.5% | −225−0.7% | Reduced | Holders |
| Q4 2024 | 30,650 | $795.7K | 0.5% | 00.0% | Unchanged | Holders |
| Q3 2024 | 30,650 | $767.5K | 0.5% | −8,365−21.4% | Reduced | Holders |
| Q2 2024 | 39,015 | $836.1K | 0.5% | −1,235−3.1% | Reduced | Holders |
| Q1 2024 | 40,250 | $746.6K | 0.5% | −700−1.7% | Reduced | Holders |
| Q4 2023 | 40,950 | $665.4K | 0.4% | −550−1.3% | Reduced | Holders |
| Q3 2023 | 41,500 | $573.1K | 0.4% | 00.0% | Unchanged | Holders |
| Q2 2023 | 41,500 | $917.1K | 0.7% | 00.0% | Unchanged | Holders |
| Q1 2023 | 41,500 | $902.6K | 0.7% | +920+2.3% | Added | Holders |
| Q4 2022 | 40,580 | $738.6K | 0.6% | −50−0.1% | Reduced | Holders |
| Q3 2022 | 40,630 | $924.0K | 0.8% | −7,685−15.9% | Reduced | Holders |
| Q2 2022 | 48,315 | $667.0K | 0.5% | −300−0.6% | Reduced | Holders |
| Q1 2022 | 48,615 | $1.10M | 0.7% | 00.0% | Unchanged | Holders |
| Q4 2021 | 48,615 | $1.81M | 1.1% | −80−0.2% | Reduced | Holders |
| Q3 2021 | 48,695 | $2.06M | 1.3% | +100+0.2% | Added | Holders |
| Q2 2021 | 48,595 | $2.16M | 1.4% | −230−0.5% | Reduced | Holders |
| Q1 2021 | 48,825 | $1.76M | 1.3% | – | – | Holders |
Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.