BLFS — BIOLIFE SOLUTIONS INC
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.
Performance
Technicals
Others in Healthcare
Measured signals that fired on BLFS
| date | signal | measured base rate |
|---|---|---|
| 2026-08-11 | Equal highs taken out structure | -0.70% over 21 days · t = -8.28 · n = 68,636 statistically distinguishable from its control group |
| 2026-08-06 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-08-03 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-07-29 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-07-23 | Volume shock without a price move price | -1.33% over 21 days · t = -4.53 · n = 16,432 statistically distinguishable from its control group |
| 2026-07-15 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-07-17 | Werner Sean Chief Technology Officer | Shares withheld for tax | 275 | 29.15 | 8.0K |
| 2026-07-07 | Wichterman Troy Chief Financial Officer | Shares withheld for tax | 844 | 27.79 | 23.5K |
| 2026-07-07 | Mathew Aby J. EVP & Chief Scientific Officer | Shares withheld for tax | 516 | 27.79 | 14.3K |
| 2026-07-07 | Berard Todd Chief Marketing Officer | Shares withheld for tax | 293 | 27.79 | 8.1K |
| 2026-06-18 | DE GREEF RODERICK President and CEO | Shares withheld for tax | 2.8K | 26.04 | 72.3K |
| 2026-06-18 | Wichterman Troy Chief Financial Officer | Shares withheld for tax | 937 | 26.04 | 24.4K |
| 2026-06-18 | Mathew Aby J. EVP & Chief Scientific Officer | Shares withheld for tax | 564 | 26.04 | 14.7K |
| 2026-06-18 | Berard Todd Chief Marketing Officer | Shares withheld for tax | 470 | 26.04 | 12.2K |
| 2026-06-18 | Werner Sean Chief Technology Officer | Shares withheld for tax | 420 | 26.04 | 10.9K |
| 2026-06-08 | Wichterman Troy Chief Financial Officer | Shares withheld for tax | 1.0K | 26.10 | 26.8K |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| BlackRock, Inc. | 116.4M | 6.1M |
| Casdin Capital, LLC | 113.7M | 6.0M |
| Invesco Ltd. | 44.8M | 2.3M |
| VANGUARD CAPITAL MANAGEMENT LLC | 36.6M | 1.9M |
| STATE STREET CORP | 30.1M | 1.6M |
| FMR LLC | 28.1M | 1.5M |
| MASSACHUSETTS FINANCIAL SERVICES CO /MA/ | 22.8M | 1.2M |
| FRED ALGER MANAGEMENT, LLC | 20.6M | 1.1M |
| DIMENSIONAL FUND ADVISORS LP | 19.8M | 1.0M |
| GEODE CAPITAL MANAGEMENT, LLC | 18.5M | 971.9K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
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