BLFSNasdaqElectromedical & Electrotherapeutic ApparatusFiscal year ends December 31
BIOLIFE SOLUTIONS INC
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 6, 2026
$38.61+0.00 (0.00%)
Close on Oct 7, 2026
- Market cap
- $1.90B
- P/E (TTM)
- 33.6
- Dividend yield
- –
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
100.0%
49M of 49M shares
Institutional holders
216
57 new, 25 sold out
Net institutional buying
-0M
In Q2 2026
Insider trades, 12 months
0 buys · 40 sales
Net sold $34.09M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| BlackRock, Inc. | 5,424,116 | – | 13G (passive) amendment | Dec 31, 2023 |
| Casdin Partners GP, LLC | 4,757,165 | 9.70% | 13G (passive) | Jun 4, 2026 |
| Casdin Partners Master Fund, L.P. | 4,757,165 | 9.70% | 13D (active) amendment | May 20, 2026 |
| T. Rowe Price Investment Management, Inc. | 3,665,965 | 7.50% | 13G (passive) amendment | Aug 31, 2026 |
| Paul J. Glazer | 2,685,520 | 5.49% | 13G (passive) | Sep 17, 2026 |
| Millennium Group Management LLC | 2,412,650 | 5.40% | 13G (passive) amendment | Dec 31, 2023 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of BLFS | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 6,751,135 | 13.80% | $190.65K | +244,789 | 0.12% |
| BlackRock, Inc. | 6,375,545 | 13.04% | $180.05M | +273,780 | 0.00% |
| Casdin Capital, LLC | 4,655,000 | 9.52% | $131.46M | −1,302,165 | 6.58% |
| Invesco Ltd. | 2,240,423 | 4.58% | $63.27M | −108,109 | 0.01% |
| Vanguard Capital Management LLC | 1,964,084 | 4.02% | $55.47M | +46,376 | 0.00% |
| State Street Corp | 1,655,927 | 3.39% | $46.77M | +78,851 | 0.00% |
| Geode Capital Management, LLC | 1,086,865 | 2.22% | $30.70M | +114,938 | 0.00% |
| Massachusetts Financial Services Co /Ma/ | 1,079,270 | 2.21% | $30.48M | −117,987 | 0.01% |
| Fred Alger Management, LLC | 1,077,577 | 2.20% | $30.43M | −2,358 | 0.10% |
| Dimensional Fund Advisors LP | 1,046,252 | 2.14% | $29.55M | +10,495 | 0.01% |
| FMR LLC | 993,106 | 2.03% | $28.05M | −477,146 | 0.00% |
| Bank Of America Corp /De/ | 950,159 | 1.94% | $26.83M | +46,056 | 0.00% |
| Vanguard Portfolio Management LLC | 913,226 | 1.87% | $25.79M | +48,188 | 0.00% |
| Royal Bank of Canada | 890,908 | 1.82% | $25.16M | +5,610 | 0.00% |
| UBS Group AG | 832,143 | 1.70% | $23.50M | +566,165 | 0.00% |
| Stephens Investment Management Group LLC | 708,666 | 1.45% | $20.01M | +35,537 | 0.21% |
| Millennium Management LLC | 625,658 | 1.28% | $17.67M | New | 0.01% |
| Royce & Associates LP | 623,875 | 1.28% | $17.62M | +39,864 | 0.14% |
| Geneva Capital Management LLC | 582,141 | 1.19% | $16.44M | −157,662 | 0.38% |
| Cramer Rosenthal McGlynn LLC | 575,792 | 1.18% | $16.26M | −57,020 | 0.82% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 216 | 49M | 100.0% | 57 / 84 | 53 / 25 | 5M | 6M |
| Q1 2026 | 187 | 50M | 100.0% | 33 / 71 | 54 / 29 | 7M | 4M |
| Q4 2025 | 187 | 49M | 100.0% | 25 / 59 | 75 / 25 | 4M | 3M |
| Q3 2025 | 192 | 48M | 99.1% | 28 / 68 | 64 / 28 | 3M | 5M |
| Q2 2025 | 194 | 51M | 100.0% | 33 / 79 | 52 / 25 | 7M | 5M |
| Q1 2025 | 188 | 49M | 99.7% | 29 / 60 | 61 / 18 | 5M | 3M |
| Q4 2024 | 180 | 47M | 95.7% | 22 / 67 | 59 / 35 | 4M | 3M |
| Q3 2024 | 195 | 46M | 93.1% | 36 / 57 | 65 / 4 | 8M | 4M |
| Q2 2024 | 164 | 47M | 96.1% | 30 / 56 | 49 / 14 | 6M | 4M |
| Q1 2024 | 149 | 46M | 93.1% | 18 / 52 | 45 / 9 | 4M | 5M |
| Q4 2023 | 140 | 46M | 94.2% | 14 / 49 | 53 / 24 | 8M | 6M |
| Q3 2023 | 153 | 44M | 89.1% | 22 / 51 | 56 / 25 | 6M | 3M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
| Fund | Shares | % of BLFS | Value | % of fund | As of |
|---|---|---|---|---|---|
| T. Rowe Price Small-Cap Stock Fund, Inc. | 2,527,325 | 5.17% | $71.37M | 0.77% | Jun 30, 2026 |
| iShares Core S&P Small-Cap ETF | 2,384,752 | 4.88% | $67.35M | 0.06% | Jun 30, 2026 |
| Vanguard Total Stock Market Index Fund | 1,461,212 | 2.99% | $41.26M | 0.00% | Jun 30, 2026 |
| T. Rowe Price Institutional Small-Cap Stock Fund | 1,378,718 | 2.82% | $38.93M | 0.77% | Jun 30, 2026 |
| iShares Russell 2000 ETF | 1,095,515 | 2.24% | $30.94M | 0.04% | Jun 30, 2026 |
| MFS New Discovery Fund | 844,897 | 1.73% | $21.05M | 0.98% | May 31, 2026 |
| Invesco Main Street Small Cap Fund | 768,765 | 1.57% | $21.71M | 0.82% | Jun 30, 2026 |
| T. Rowe Price Small-Cap Value Fund, Inc. | 647,267 | 1.32% | $18.28M | 0.17% | Jun 30, 2026 |
| Fidelity Small Cap Growth Fund | 582,890 | 1.19% | $18.23M | 0.21% | Jul 31, 2026 |
| Alger Small Cap Focus Fund | 533,319 | 1.09% | $16.68M | 1.95% | Jul 31, 2026 |
| Fidelity Small Cap Index Fund | 466,282 | 0.95% | $14.59M | 0.04% | Jul 31, 2026 |
| Vanguard Extended Market Index Fund | 456,681 | 0.93% | $12.90M | 0.01% | Jun 30, 2026 |
| Invesco V.I. Main Street Small Cap Fund | 427,503 | 0.87% | $12.07M | 0.83% | Jun 30, 2026 |
| State Street(R) SPDR(R) Portfolio S&P 600(TM) Small Cap ETF | 362,498 | 0.74% | $10.24M | 0.06% | Jun 30, 2026 |
| Bridge Builder Small/Mid Cap Growth Fund | 335,638 | 0.69% | $9.48M | 0.08% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Greef Roderick De | President and CEO, Director | 728,196 | 1.49% | Sep 22, 2026 |
| Todd Berard | Chief Marketing Officer | 161,823 | 0.33% | Sep 22, 2026 |
| Troy Wichterman | Chief Financial Officer | 211,286 | 0.43% | Sep 22, 2026 |
| Sean Werner | Chief Technology Officer | 47,135 | 0.10% | Sep 22, 2026 |
| Aby J. Mathew | EVP & Chief Scientific Officer | 387,269 | 0.79% | Sep 22, 2026 |
| Karen A. Foster | Chief Quality and Operations | 108,758 | 0.22% | Mar 31, 2026 |
| Sarah Aebersold | Chief Human Resources Officer | 92,429 | 0.19% | Mar 23, 2026 |
| Amy DuRoss | Director | 26,857 | 0.05% | Feb 26, 2026 |
| Anthony Hunt | Director | 15,046 | 0.03% | Feb 26, 2026 |
| Timothy L. Moore | Director | 44,943 | 0.09% | Feb 26, 2026 |
| Joydeep Goswami | Director | 53,156 | 0.11% | Feb 26, 2026 |
| Catherine Coste | Director | 13,871 | 0.03% | Feb 26, 2026 |
| Rachel Ellingson | Director | 57,995 | 0.12% | Feb 26, 2026 |
| Eli Casdin | 10% owner | 15,764,330 | 32.23% | May 21, 2026 |
| Casdin Partners GP, LLC | 10% owner | 13,587,165 | 27.78% | May 21, 2026 |
| Casdin Capital, LLC | 10% owner | 14,147,272 | 28.93% | May 21, 2026 |
| Casdin Partners Master Fund, L.P. | 10% owner | 13,464,330 | 27.53% | May 21, 2026 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Sean Werner Chief Technology Officer | Sep 18, 2026 | Tax withholding | −421 | $36.69 | $15.45K | 47,135 |
| Aby J. Mathew EVP & Chief Scientific Officer | Sep 18, 2026 | Tax withholding | −564 | $36.69 | $20.69K | 387,269 |
| Todd Berard Chief Marketing Officer | Sep 18, 2026 | Tax withholding | −470 | $36.69 | $17.24K | 161,823 |
| Greef Roderick De President and CEO, Director | Sep 18, 2026 | Tax withholding | −2,775 | $36.69 | $101.81K | 728,196 |
| Troy Wichterman Chief Financial Officer | Sep 18, 2026 | Tax withholding | −937 | $36.69 | $34.38K | 211,286 |
| Aby J. Mathew EVP & Chief Scientific Officer | Sep 8, 2026 | Tax withholding | −627 | $35.38 | $22.18K | 387,833 |
| Todd Berard Chief Marketing Officer | Sep 8, 2026 | Tax withholding | −356 | $35.38 | $12.60K | 162,293 |
| Troy Wichterman Chief Financial Officer | Sep 8, 2026 | Tax withholding | −1,026 | $35.38 | $36.30K | 212,223 |
| Sean Werner Chief Technology Officer | Jul 17, 2026 | Tax withholding | −275 | $29.15 | $8.02K | 47,556 |
| Troy Wichterman Chief Financial Officer | Jul 7, 2026 | Tax withholding | −844 | $27.79 | $23.45K | 213,249 |
| Aby J. Mathew EVP & Chief Scientific Officer | Jul 7, 2026 | Tax withholding | −516 | $27.79 | $14.34K | 388,460 |
| Todd Berard Chief Marketing Officer | Jul 7, 2026 | Tax withholding | −293 | $27.79 | $8.14K | 162,649 |
| Aby J. Mathew EVP & Chief Scientific Officer | Jun 18, 2026 | Tax withholding | −564 | $26.04 | $14.69K | 388,976 |
| Troy Wichterman Chief Financial Officer | Jun 18, 2026 | Tax withholding | −937 | $26.04 | $24.40K | 214,093 |
| Sean Werner Chief Technology Officer | Jun 18, 2026 | Tax withholding | −420 | $26.04 | $10.94K | 47,831 |
| Greef Roderick De President and CEO, Director | Jun 18, 2026 | Tax withholding | −2,775 | $26.04 | $72.26K | 730,971 |
| Todd Berard Chief Marketing Officer | Jun 18, 2026 | Tax withholding | −470 | $26.04 | $12.24K | 162,942 |
| Troy Wichterman Chief Financial Officer | Jun 8, 2026 | Tax withholding | −1,026 | $26.10 | $26.78K | 215,030 |
| Todd Berard Chief Marketing Officer | Jun 8, 2026 | Tax withholding | −356 | $26.10 | $9.29K | 163,412 |
| Aby J. Mathew EVP & Chief Scientific Officer | Jun 8, 2026 | Tax withholding | −627 | $26.10 | $16.36K | 389,540 |
| Casdin Partners Master Fund, L.P. 10% owner | May 21, 2026 | Sale | −650,000 | $23.70 | $15.41M | 4,757,165 |
| Casdin Partners Master Fund, L.P. 10% owner | May 20, 2026 | Sale | −250,000 | $23.70 | $5.93M | 5,407,165 |
| Casdin Partners Master Fund, L.P. 10% owner | May 19, 2026 | Sale | −300,000 | $22.65 | $6.80M | 5,657,165 |
| Aby J. Mathew EVP & Chief Scientific Officer | Apr 8, 2026 | Tax withholding | −515 | $19.27 | $9.92K | 390,167 |
| Troy Wichterman Chief Financial Officer | Apr 8, 2026 | Tax withholding | −844 | $19.27 | $16.26K | 216,056 |
| Todd Berard Chief Marketing Officer | Apr 8, 2026 | Tax withholding | −293 | $19.27 | $5.65K | 163,768 |
| Karen A. Foster Chief Quality and Operations | Mar 23, 2026 | Sale(10b5-1 plan) | −2,577 | $19.17 | $49.40K | 108,758 |
| Karen A. Foster Chief Quality and Operations | Mar 19, 2026 | Tax withholding | −1,907 | $19.12 | $36.46K | 111,335 |
| Todd Berard Chief Marketing Officer | Mar 19, 2026 | Tax withholding | −1,879 | $19.12 | $35.93K | 164,061 |
| Sean Werner Chief Technology Officer | Mar 19, 2026 | Tax withholding | −1,681 | $19.12 | $32.14K | 48,251 |
| Sarah Aebersold Chief Human Resources Officer | Mar 19, 2026 | Tax withholding | −931 | $19.12 | $17.80K | 92,429 |
| Greef Roderick De President and CEO, Director | Mar 19, 2026 | Tax withholding | −11,101 | $19.12 | $212.25K | 733,746 |
| Aby J. Mathew EVP & Chief Scientific Officer | Mar 19, 2026 | Tax withholding | −2,255 | $19.12 | $43.12K | 390,682 |
| Troy Wichterman Chief Financial Officer | Mar 19, 2026 | Tax withholding | −3,749 | $19.12 | $71.68K | 216,900 |
| Karen A. Foster Chief Quality and Operations | Mar 9, 2026 | Sale | −500 | $20.00 | $10.00K | 113,242 |
| Karen A. Foster Chief Quality and Operations | Mar 5, 2026 | Sale | −96,923 | $20.15 | $1.95M | 113,742 |
| Sean Werner Chief Technology Officer | Mar 3, 2026 | Sale(10b5-1 plan) | −111 | $20.74 | $2.30K | 49,932 |
| Todd Berard Chief Marketing Officer | Mar 3, 2026 | Sale(10b5-1 plan) | −353 | $20.74 | $7.32K | 165,940 |
| Aby J. Mathew EVP & Chief Scientific Officer | Mar 3, 2026 | Sale(10b5-1 plan) | −529 | $20.74 | $10.97K | 392,937 |
| Karen A. Foster Chief Quality and Operations | Mar 3, 2026 | Sale(10b5-1 plan) | −418 | $20.74 | $8.67K | 210,665 |
| Sarah Aebersold Chief Human Resources Officer | Mar 3, 2026 | Sale(10b5-1 plan) | −219 | $20.74 | $4.54K | 93,360 |
| Troy Wichterman Chief Financial Officer | Mar 3, 2026 | Sale(10b5-1 plan) | −588 | $20.74 | $12.20K | 220,649 |
| Sean Werner Chief Technology Officer | Feb 24, 2026 | Award | +24,116 | – | – | 50,043 |
| Todd Berard Chief Marketing Officer | Feb 24, 2026 | Award | +20,096 | – | – | 152,660 |
| Todd Berard Chief Marketing Officer | Feb 24, 2026 | Tax withholding | −8,846 | $22.65 | $200.36K | 166,293 |
| Todd Berard Chief Marketing Officer | Feb 24, 2026 | Award | +22,479 | – | – | 175,139 |
| Troy Wichterman Chief Financial Officer | Feb 24, 2026 | Award | +31,150 | – | – | 181,896 |
| Troy Wichterman Chief Financial Officer | Feb 24, 2026 | Award | +64,866 | – | – | 246,762 |
| Troy Wichterman Chief Financial Officer | Feb 24, 2026 | Tax withholding | −25,525 | $22.65 | $578.14K | 221,237 |
| Timothy L. Moore Director | Feb 24, 2026 | Award | +8,170 | – | – | 44,943 |
| Karen A. Foster Chief Quality and Operations | Feb 24, 2026 | Award | +32,112 | – | – | 224,096 |
| Karen A. Foster Chief Quality and Operations | Feb 24, 2026 | Tax withholding | −13,013 | $22.65 | $294.74K | 211,083 |
| Amy DuRoss Director | Feb 24, 2026 | Award | +8,170 | – | – | 26,857 |
| Aby J. Mathew EVP & Chief Scientific Officer | Feb 24, 2026 | Tax withholding | −15,585 | $22.65 | $353.00K | 393,466 |
| Aby J. Mathew EVP & Chief Scientific Officer | Feb 24, 2026 | Award | +39,605 | – | – | 409,051 |
| Aby J. Mathew EVP & Chief Scientific Officer | Feb 24, 2026 | Award | +20,096 | – | – | 369,446 |
| Joydeep Goswami Director | Feb 24, 2026 | Award | +8,170 | – | – | 53,156 |
| Rachel Ellingson Director | Feb 24, 2026 | Award | +8,170 | – | – | 57,995 |
| Anthony Hunt Director | Feb 24, 2026 | Award | +8,170 | – | – | 15,046 |
| Sarah Aebersold Chief Human Resources Officer | Feb 24, 2026 | Tax withholding | −5,734 | $22.65 | $129.88K | 93,579 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Casdin Partners Master Fund, L.P. 10% Shareholder | May 21, 2026 | 650,000 | $15.60M | May 21, 2026 | Purchase |
| Casdin Partners Master Fund, L.P 10% Shareholder | May 20, 2026 | 250,000 | $6.00M | May 20, 2026 | Purchase |
| Casdin Partners Master Fund, L.P. 10% Shareholder | May 19, 2026 | 300,000 | $6.69M | May 19, 2026 | Purchase |
| Foster Karen Officer | Mar 23, 2026 | 2,577 | $48.58K | Mar 23, 2026 | Exercise of Stock Options |
| Foster Karen Officer | Mar 9, 2026 | 500 | $9.93K | Mar 9, 2026 | Exercise of Stock Options |
| Foster Karen Officer | Mar 5, 2026 | 96,923 | $2.00M | Mar 5, 2026 | Exercise of Stock Options |
| Aebersold Sarah Officer | Dec 15, 2025 | 713 | $17.39K | Dec 15, 2025 | Restricted Stock Units |
| Wichterman Troy Officer | Dec 4, 2025 | 30,000 | $771.50K | Dec 4, 2025 | Restricted stock vesting under a registered plan |
| De Greef Roderick Officer | Nov 13, 2025 | 31,165 | $789.30K | Nov 13, 2025 | Restricted stock vesting under a registered plan |
| De Greef Roderick Officer | Nov 12, 2025 | 33,418 | $864.99K | Nov 12, 2025 | Restricted stock vesting under a registered plan |
| Amy DuRoss Director | Nov 12, 2025 | 12,000 | $316.56K | Nov 12, 2025 | rsu grants from board service |
| De Greef Roderick Officer | Nov 12, 2025 | 35,417 | $926.09K | Nov 11, 2025 | Restricted stock vesting under a registered plan |
| Greef Roderick De Officer, Director | Oct 22, 2025 | 37,795 | $1.03M | Oct 22, 2025 | Restricted Stock Units |
| Joydeep Goswami Director | Oct 16, 2025 | 9,000 | $278.91K | Oct 16, 2025 | COMPENSATION ACQUIRED BETWEEN 8/9/22 TO 05/06/23 |
| Casdin Partners Master Fund, L.P. 10% Shareholder | Oct 15, 2025 | 750,000 | $21.41M | Oct 15, 2025 | Purchase |