BLFS · NASDAQ · Medical - Instruments & Supplies

BioLife Solutions

Supplies preservation media and cell-processing tools for cell and gene therapy workflows.

$36.38
After-hours close−0.01 (−0.03%)
At close$36.39(−2.18%)

Breakdown13F · Form 4

Institutions 104.47%Insiders 4.00%

A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.

Shares outstanding 48.86M · Float 42.68M · 87.4% free float

Top shareholders13F · 13D/G · Form 4

HolderShares% outstandingFormFiled
T. Rowe Price Investment Management, Inc.6.75M13.82%13FAug 14, 2026
BlackRock, Inc.6.38M13.05%13FAug 7, 2026
Casdin Partners Master Fund, L.P.4.76M9.70%13DMay 22, 2026
Casdin Capital, LLC4.66M9.53%13FAug 14, 2026
Invesco Ltd.2.24M4.59%13FAug 14, 2026

Institutions13F, as of Jun 30, 2026

220 holders · 51.04M shares · 58 new positions · 140 increased · 54 reduced · 29 closed

HolderShares% outstandingChg q/qFiled
T. Rowe Price Investment Management, Inc.6.75M13.82%+244.8KAug 14, 2026
BlackRock, Inc.6.38M13.05%+273.8KAug 7, 2026
Casdin Capital, LLC4.66M9.53%−1.30MAug 14, 2026
Invesco Ltd.2.24M4.59%−108.1KAug 14, 2026
Vanguard Capital Management LLC1.96M4.02%+46.4KAug 13, 2026
State Street Corp1.66M3.39%+78.9KAug 7, 2026
Geode Capital Management, LLC1.09M2.22%+114.9KAug 12, 2026
Massachusetts Financial Services Co /MA/1.08M2.21%−118.0KAug 3, 2026

Beneficial owners13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
T. Rowe Price Investment Management, Inc.13.50%6.51M13GMay 15, 2026
Casdin Capital, LLC9.70%4.76M13GJun 4, 2026
Casdin Partners Master Fund, L.P.incl. Casdin Capital, LLC, Eli Casdin +1 more9.70%4.76M13DMay 22, 2026

InsidersForm 4

InsiderRoleShares% outstandingFiled
Casdin Partners Master Fund, L.P.10 percent owner4.76M9.74%May 21, 2026
Roderick de Greefdirector, officer: President and CEO731.0K1.50%Jun 22, 2026
Aby J. Mathewofficer: EVP & Chief Scientific Officer388.5K0.80%Jul 13, 2026
Troy Wichtermanofficer: Chief Financial Officer213.2K0.44%Jul 13, 2026
Todd Berardofficer: Chief Marketing Officer162.6K0.33%Jul 13, 2026
Karen A. Fosterofficer: Chief Quality and Operations108.8K0.22%Mar 31, 2026
Sarah Aebersoldofficer: Chief Human Resources Officer92.4K0.19%Mar 23, 2026
Rachel Ellingsondirector58.0K0.12%Feb 26, 2026
Joydeep Goswamidirector53.2K0.11%Feb 26, 2026
Sean Wernerofficer: Chief Technology Officer47.6K0.10%Jul 21, 2026

5 ten-percent owners hold 11.71M shares by Form 4 — the 13D/G table above shows those stakes, the figure above counts officers and directors only · 13 people have not refiled in the last 18 months (699.5K shares), so they are not in the figure above

Latest trades

DateInsiderTypeSharesAvg priceOwned after
May 21, 2026
Casdin Partners Master Fund, L.P.10 percent owner
Sale650,000$23.704,757,165
May 20, 2026
Casdin Partners Master Fund, L.P.10 percent owner
Sale250,000$23.705,407,165
May 19, 2026
Casdin Partners Master Fund, L.P.10 percent owner
Sale300,000$22.655,657,165
Mar 23, 2026
Karen A. Fosterofficer: Chief Quality and Operations
Sale2,577$19.17108,758
Mar 9, 2026
Karen A. Fosterofficer: Chief Quality and Operations
Sale500$20.00113,242
Mar 5, 2026
Karen A. Fosterofficer: Chief Quality and Operations
Sale96,923$20.15113,742
Mar 3, 2026
Todd Berardofficer: Chief Marketing Officer
Sale353$20.74165,940
Mar 3, 2026
Sarah Aebersoldofficer: Chief Human Resources Officer
Sale219$20.7493,360
Mar 3, 2026
Troy Wichtermanofficer: Chief Financial Officer
Sale588$20.74220,649
Mar 3, 2026
Aby J. Mathewofficer: EVP & Chief Scientific Officer
Sale529$20.74392,937

CongressHouse and Senate disclosures

Not reported.