BioLife Solutions (BLFS)
Supplies preservation media and cell-processing tools for cell and gene therapy workflows.
$37.86
vs last close−0.21 (−0.56%)
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13F · 13D/G · Form 4
| Institutions | ≈ 101.33% | 49.56M shares | |
|---|---|---|---|
| 221 holders · as of Jun 30, 2026 · largest filers plus last quarter's tail | |||
| Insiders | 3.98% | 1.95M shares | |
| 13 holders · as of Sep 22, 2026 | |||
| Adds to | 105.31% | ||
48.91M company shares as of Sep 23, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing
This quarter's institutional total failed a plausibility check; shown: the largest filers plus last quarter's remainder.
These groups come from separate filings that can overlap, so they add to 105.31%; nothing is left for Other.
13F, as of Jun 30, 2026
221 holders · 49.56M shares · 58 new positions · 140 increased · 55 reduced · 28 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 6.75M | 13.80% | +244.8K | Aug 14, 2026 |
| BlackRock, Inc. | 6.38M | 13.04% | +273.8K | Aug 7, 2026 |
| Casdin Capital, LLC | 4.66M | 9.52% | −1.30M | Aug 14, 2026 |
| Invesco Ltd. | 2.24M | 4.58% | −108.1K | Aug 14, 2026 |
| Vanguard Capital Management LLC | 1.96M | 4.02% | +46.4K | Aug 13, 2026 |
| State Street Corp | 1.66M | 3.39% | +78.9K | Aug 7, 2026 |
| Geode Capital Management, LLC | 1.09M | 2.22% | +114.9K | Aug 12, 2026 |
| Massachusetts Financial Services Co /MA/ | 1.08M | 2.21% | −118.0K | Aug 3, 2026 |
13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Casdin Capital, LLC | 9.70% | 4.76M | 13G | Jun 4, 2026 |
| Casdin Partners Master Fund, L.P.incl. Casdin Capital, LLC, Eli Casdin +1 more | 9.70% | 4.76M | 13D | May 22, 2026 |
| T. Rowe Price Investment Management, Inc. | 7.50% | 3.67M | 13G | Sep 8, 2026 |
Form 4
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| May 21, 2026 | Casdin Partners Master Fund, L.P.10 percent owner | Sale | 650,000 | $23.70 | 4,757,165 |
| May 20, 2026 | Casdin Partners Master Fund, L.P.10 percent owner | Sale | 250,000 | $23.70 | 5,407,165 |
| May 19, 2026 | Casdin Partners Master Fund, L.P.10 percent owner | Sale | 300,000 | $22.65 | 5,657,165 |
| Mar 23, 2026 | Karen A. Fosterofficer: Chief Quality and Operations | Sale | 2,577 | $19.17 | 108,758 |
| Mar 9, 2026 | Karen A. Fosterofficer: Chief Quality and Operations | Sale | 500 | $20.00 | 113,242 |
| Mar 5, 2026 | Karen A. Fosterofficer: Chief Quality and Operations | Sale | 96,923 | $20.15 | 113,742 |
| Mar 3, 2026 | Todd Berardofficer: Chief Marketing Officer | Sale | 353 | $20.74 | 165,940 |
| Mar 3, 2026 | Sarah Aebersoldofficer: Chief Human Resources Officer | Sale | 219 | $20.74 | 93,360 |
| Mar 3, 2026 | Troy Wichtermanofficer: Chief Financial Officer | Sale | 588 | $20.74 | 220,649 |
| Mar 3, 2026 | Aby J. Mathewofficer: EVP & Chief Scientific Officer | Sale | 529 | $20.74 | 392,937 |
House and Senate disclosures
Not reported.