Biolife Solutions Inc (BLFS) · Insider trading
What Biolife Solutions's directors, officers and largest holders bought and sold themselves, from the Form 4 each of them files with the SEC within two business days of a trade. Open-market purchases and sales first: those are the trades somebody chose to make at the market price.
Bought, 12 months
$0
0 insiders, 0 trades
Sold, 12 months
$35.13M
10 insiders, 4% under a plan
Net, 12 months
−$35.13M
bought less sold
Latest filing
2026-10-08
filings read to 2026-10-19
Who traded, two years
| Insider | Bought | Sold | Trades | Last trade | Holds after |
|---|---|---|---|---|---|
| Casdin Partners GP, LLC10% owner | – | $96.84M | 7 | 2026-05-21 | – |
| De Greef RoderickDirector, President and CEO | – | $4.71M | 5 | 2025-11-13 | 389,998 |
| Foster Karen A.Chief Quality and Operations | – | $2.36M | 22 | 2026-03-23 | 108,758 |
| Mathew Aby J.EVP & Chief Scientific Officer | – | $1.93M | 24 | 2026-03-03 | 392,937 |
| Wichterman TroyChief Financial Officer | – | $1.77M | 20 | 2026-03-03 | 220,649 |
| Aebersold SarahChief Human Resources Officer | – | $695,733 | 24 | 2026-03-03 | 93,360 |
| Berard ToddChief Marketing Officer | – | $629,009 | 20 | 2026-03-03 | 165,940 |
| DuRoss AmyDirector | – | $446,320 | 7 | 2025-12-15 | 18,687 |
| Werner SeanChief Technology Officer | – | $50,876 | 10 | 2026-03-03 | 49,932 |
| Goswami JoydeepDirector | – | $48,297 | 2 | 2025-10-24 | 44,986 |
Open-market purchases and sales
Newest first. “Plan” marks a trade made under a 10b5-1 plan set up in advance.
| Date | Insider | Trade | Shares | Price | Value | Holds after | Filing |
|---|---|---|---|---|---|---|---|
| 2026-05-21 | Casdin Partners GP, LLC10% ownerwith Casdin Capital, LLC, Casdin Eli, Casdin Partners Master Fund, L.P. | Saleindirect | 650,000 | 23.70 | $15.40M | 4,757,165 | Form 4 |
| 2026-05-20 | Casdin Partners GP, LLC10% ownerwith Casdin Capital, LLC, Casdin Eli, Casdin Partners Master Fund, L.P. | Saleindirect | 250,000 | 23.70 | $5.92M | 5,407,165 | Form 4 |
| 2026-05-19 | Casdin Partners GP, LLC10% ownerwith Casdin Capital, LLC, Casdin Eli, Casdin Partners Master Fund, L.P. | Saleindirect | 300,000 | 22.65 | $6.79M | 5,657,165 | Form 4 |
| 2026-03-23 | Foster Karen A.Chief Quality and Operations | Saleplan | 2,577 | 19.17 | $49,401 | 108,758 | Form 4 |
| 2026-03-09 | Foster Karen A.Chief Quality and Operations | Sale | 500 | 20.00 | $10,000 | 113,242 | Form 4 |
| 2026-03-05 | Foster Karen A.Chief Quality and Operations | Sale | 96,923 | 20.15 | $1.95M | 113,742 | Form 4 |
| 2026-03-03 | Berard ToddChief Marketing Officer | Saleplan | 353 | 20.74 | $7,321 | 165,940 | Form 4 |
| 2026-03-03 | Aebersold SarahChief Human Resources Officer | Saleplan | 219 | 20.74 | $4,542 | 93,360 | Form 4 |
| 2026-03-03 | Wichterman TroyChief Financial Officer | Saleplan | 588 | 20.74 | $12,195 | 220,649 | Form 4 |
| 2026-03-03 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 529 | 20.74 | $10,971 | 392,937 | Form 4 |
| 2026-03-03 | Foster Karen A.Chief Quality and Operations | Saleplan | 418 | 20.74 | $8,669 | 210,665 | Form 4 |
| 2026-03-03 | Werner SeanChief Technology Officer | Saleplan | 111 | 20.74 | $2,302 | 49,932 | Form 4 |
| 2026-01-06 | Berard ToddChief Marketing Officer | Saleplan | 344 | 25.59 | $8,803 | 132,564 | Form 4 |
| 2026-01-06 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 405 | 25.59 | $10,364 | 349,350 | Form 4 |
| 2026-01-06 | Aebersold SarahChief Human Resources Officer | Saleplan | 241 | 25.59 | $6,167 | 75,765 | Form 4 |
| 2026-01-06 | Foster Karen A.Chief Quality and Operations | Saleplan | 335 | 25.59 | $8,573 | 191,984 | Form 4 |
| 2026-01-06 | Wichterman TroyChief Financial Officer | Saleplan | 990 | 25.59 | $25,334 | 150,746 | Form 4 |
| 2025-12-15 | DuRoss AmyDirector | Sale | 2,000 | 24.60 | $49,200 | 18,687 | Form 4 |
| 2025-12-15 | Aebersold SarahChief Human Resources Officer | Saleplan | 713 | 24.46 | $17,440 | 76,006 | Form 4 |
| 2025-12-09 | Foster Karen A.Chief Quality and Operations | Saleplan | 519 | 25.13 | $13,042 | 192,319 | Form 4 |
| 2025-12-09 | Berard ToddChief Marketing Officer | Saleplan | 358 | 25.13 | $8,997 | 132,908 | Form 4 |
| 2025-12-09 | Aebersold SarahChief Human Resources Officer | Saleplan | 233 | 25.13 | $5,855 | 76,719 | Form 4 |
| 2025-12-09 | Wichterman TroyChief Financial Officer | Saleplan | 1,033 | 25.13 | $25,959 | 151,736 | Form 4 |
| 2025-12-09 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 631 | 25.13 | $15,857 | 349,755 | Form 4 |
| 2025-12-04 | Wichterman TroyChief Financial Officer | Sale | 30,000 | 25.72 | $771,600 | 152,769 | Form 4 |
| 2025-11-26 | DuRoss AmyDirector | Sale | 2,000 | 27.00 | $54,000 | 20,687 | Form 4 |
| 2025-11-25 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 526 | 26.74 | $14,065 | 350,386 | Form 4 |
| 2025-11-25 | Werner SeanChief Technology Officer | Saleplan | 110 | 26.74 | $2,941 | 25,927 | Form 4 |
| 2025-11-25 | Foster Karen A.Chief Quality and Operations | Saleplan | 415 | 26.74 | $11,097 | 192,838 | Form 4 |
| 2025-11-25 | Aebersold SarahChief Human Resources Officer | Saleplan | 217 | 26.74 | $5,803 | 76,952 | Form 4 |
| 2025-11-25 | Wichterman TroyChief Financial Officer | Saleplan | 584 | 26.74 | $15,616 | 182,769 | Form 4 |
| 2025-11-25 | Berard ToddChief Marketing Officer | Saleplan | 351 | 26.74 | $9,386 | 133,266 | Form 4 |
| 2025-11-25 | DuRoss AmyDirector | Sale | 2,000 | 27.00 | $54,000 | 22,687 | Form 4 |
| 2025-11-21 | DuRoss AmyDirector | Sale | 1,000 | 26.00 | $26,000 | 24,687 | Form 4 |
| 2025-11-20 | DuRoss AmyDirector | Sale | 4,523 | 24.51 | $110,859 | 25,687 | Form 4 |
| 2025-11-19 | DuRoss AmyDirector | Sale | 477 | 24.50 | $11,686 | 30,210 | Form 4 |
| 2025-11-13 | De Greef RoderickDirector, President and CEO | Sale | 31,165 | 25.33 | $789,409 | 389,998 | Form 4 |
| 2025-11-12 | De Greef RoderickDirector, President and CEO | Sale | 33,418 | 25.88 | $864,858 | 421,163 | Form 4 |
| 2025-11-11 | De Greef RoderickDirector, President and CEO | Sale | 35,417 | 26.15 | $926,155 | 454,581 | Form 4 |
| 2025-10-24 | Goswami JoydeepDirector | Saleplan | 1,666 | 28.99 | $48,297 | 44,986 | Form 4 |
101 more
| 2025-10-22 | De Greef RoderickDirector, President and CEO | Saleplan | 37,795 | 27.30 | $1.03M | 489,998 | Form 4 |
| 2025-10-20 | Werner SeanChief Technology Officer | Saleplan | 275 | 27.82 | $7,650 | 26,037 | Form 4 |
| 2025-10-16 | Goswami JoydeepDirector | Saleplan | 1,334 | – | – | 46,652 | Form 4 |
| 2025-10-15 | Casdin Partners GP, LLC10% ownerwith Casdin Capital, LLC, Casdin Eli, Casdin Partners Master Fund, L.P. | Saleindirect | 750,000 | 28.55 | $21.41M | 5,957,165 | Form 4 |
| 2025-10-09 | Foster Karen A.Chief Quality and Operations | Saleplan | 419 | 27.36 | $11,464 | 193,253 | Form 4 |
| 2025-10-09 | Aebersold SarahChief Human Resources Officer | Saleplan | 188 | 27.36 | $5,144 | 77,169 | Form 4 |
| 2025-10-09 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 509 | 27.36 | $13,926 | 350,912 | Form 4 |
| 2025-10-09 | Berard ToddChief Marketing Officer | Saleplan | 289 | 27.36 | $7,907 | 133,617 | Form 4 |
| 2025-10-09 | Wichterman TroyChief Financial Officer | Saleplan | 833 | 27.36 | $22,791 | 183,353 | Form 4 |
| 2025-09-15 | Aebersold SarahChief Human Resources Officer | Saleplan | 714 | 25.61 | $18,286 | 77,357 | Form 4 |
| 2025-09-11 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 630 | 26.83 | $16,903 | 351,421 | Form 4 |
| 2025-09-11 | Berard ToddChief Marketing Officer | Saleplan | 358 | 26.83 | $9,605 | 133,906 | Form 4 |
| 2025-09-11 | Foster Karen A.Chief Quality and Operations | Saleplan | 511 | 26.83 | $13,710 | 193,672 | Form 4 |
| 2025-09-11 | Aebersold SarahChief Human Resources Officer | Saleplan | 233 | 26.83 | $6,251 | 78,071 | Form 4 |
| 2025-09-11 | Wichterman TroyChief Financial Officer | Saleplan | 1,032 | 26.83 | $27,689 | 184,186 | Form 4 |
| 2025-09-11 | Werner SeanChief Technology Officer | Saleplan | 72 | 26.83 | $1,932 | 26,312 | Form 4 |
| 2025-08-26 | Berard ToddChief Marketing Officer | Saleplan | 354 | 25.44 | $9,006 | 134,264 | Form 4 |
| 2025-08-26 | Aebersold SarahChief Human Resources Officer | Saleplan | 219 | 25.44 | $5,571 | 78,304 | Form 4 |
| 2025-08-26 | Wichterman TroyChief Financial Officer | Saleplan | 590 | 25.44 | $15,010 | 185,218 | Form 4 |
| 2025-08-26 | Werner SeanChief Technology Officer | Saleplan | 111 | 25.44 | $2,824 | 26,384 | Form 4 |
| 2025-08-26 | Foster Karen A.Chief Quality and Operations | Saleplan | 413 | 25.44 | $10,507 | 194,183 | Form 4 |
| 2025-08-26 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 531 | 25.44 | $13,509 | 352,051 | Form 4 |
| 2025-08-25 | Berard ToddChief Marketing Officer | Sale | 10,000 | 25.53 | $255,300 | 124,618 | Form 4 |
| 2025-08-15 | Casdin Partners GP, LLC10% ownerwith Casdin Capital, LLC, Casdin Eli, Casdin Partners Master Fund, L.P. | Saleindirect | 500,000 | 24.40 | $12.20M | 6,707,165 | Form 4 |
| 2025-08-11 | Casdin Partners GP, LLC10% ownerwith Casdin Capital, LLC, Casdin Eli, Casdin Partners Master Fund, L.P. | Saleindirect | 500,000 | 22.60 | $11.30M | 7,207,165 | Form 4 |
| 2025-07-18 | Werner SeanChief Technology Officer | Saleplan | 1,115 | 21.22 | $23,660 | 26,495 | Form 4 |
| 2025-07-07 | Berard ToddChief Marketing Officer | Saleplan | 304 | 22.27 | $6,770 | 134,618 | Form 4 |
| 2025-07-07 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 536 | 22.27 | $11,937 | 352,582 | Form 4 |
| 2025-07-07 | Wichterman TroyChief Financial Officer | Saleplan | 877 | 22.27 | $19,531 | 185,808 | Form 4 |
| 2025-07-07 | Foster Karen A.Chief Quality and Operations | Saleplan | 400 | 22.27 | $8,908 | 194,596 | Form 4 |
| 2025-07-07 | Aebersold SarahChief Human Resources Officer | Saleplan | 198 | 22.27 | $4,409 | 78,523 | Form 4 |
| 2025-06-16 | Aebersold SarahChief Human Resources Officer | Saleplan | 711 | 22.23 | $15,806 | 78,721 | Form 4 |
| 2025-06-10 | Casdin Partners GP, LLC10% ownerwith Casdin Capital, LLC, Casdin Eli, Casdin Partners Master Fund, L.P. | Saleindirect | 1,000,000 | 23.80 | $23.80M | 7,707,165 | Form 4 |
| 2025-06-10 | Foster Karen A.Chief Quality and Operations | Saleplan | 320 | 23.70 | $7,584 | 194,996 | Form 4 |
| 2025-06-10 | Aebersold SarahChief Human Resources Officer | Saleplan | 235 | 23.70 | $5,570 | 79,432 | Form 4 |
| 2025-06-10 | Werner SeanChief Technology Officer | Saleplan | 65 | 23.70 | $1,540 | 27,610 | Form 4 |
| 2025-06-10 | Wichterman TroyChief Financial Officer | Saleplan | 1,042 | 23.70 | $24,695 | 186,685 | Form 4 |
| 2025-06-10 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 637 | 23.70 | $15,097 | 353,118 | Form 4 |
| 2025-06-10 | Berard ToddChief Marketing Officer | Saleplan | 362 | 23.70 | $8,579 | 134,922 | Form 4 |
| 2025-05-28 | Wichterman TroyChief Financial Officer | Saleplan | 583 | 22.46 | $13,094 | 187,727 | Form 4 |
| 2025-05-28 | Werner SeanChief Technology Officer | Saleplan | 109 | 22.46 | $2,448 | 27,675 | Form 4 |
| 2025-05-28 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 521 | 22.46 | $11,702 | 308,486 | Form 4 |
| 2025-05-28 | Berard ToddChief Marketing Officer | Saleplan | 348 | 22.46 | $7,816 | 135,284 | Form 4 |
| 2025-05-28 | Aebersold SarahChief Human Resources Officer | Saleplan | 217 | 22.46 | $4,874 | 79,667 | Form 4 |
| 2025-05-28 | Foster Karen A.Chief Quality and Operations | Saleplan | 251 | 22.46 | $5,637 | 195,316 | Form 4 |
| 2025-04-09 | Foster Karen A.Chief Quality and Operations | Saleplan | 286 | 20.11 | $5,751 | 195,567 | Form 4 |
| 2025-04-09 | Berard ToddChief Marketing Officer | Saleplan | 324 | 20.11 | $6,516 | 135,632 | Form 4 |
| 2025-04-09 | Aebersold SarahChief Human Resources Officer | Saleplan | 210 | 20.11 | $4,223 | 79,884 | Form 4 |
| 2025-04-09 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 569 | 20.11 | $11,443 | 309,007 | Form 4 |
| 2025-04-09 | Wichterman TroyChief Financial Officer | Saleplan | 932 | 20.11 | $18,743 | 188,310 | Form 4 |
| 2025-04-01 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 10,589 | 22.66 | $239,947 | 309,576 | Form 4 |
| 2025-04-01 | Foster Karen A.Chief Quality and Operations | Saleplan | 7,869 | 22.66 | $178,312 | 195,853 | Form 4 |
| 2025-04-01 | Wichterman TroyChief Financial Officer | Saleplan | 25,687 | 22.66 | $582,067 | 189,242 | Form 4 |
| 2025-04-01 | Berard ToddChief Marketing Officer | Saleplan | 8,902 | 22.66 | $201,719 | 135,956 | Form 4 |
| 2025-04-01 | Aebersold SarahChief Human Resources Officer | Saleplan | 5,771 | 22.66 | $130,771 | 80,094 | Form 4 |
| 2025-03-17 | Aebersold SarahChief Human Resources Officer | Saleplan | 2,695 | 25.44 | $68,561 | 48,797 | Form 4/A |
| 2025-03-14 | DuRoss AmyDirector | Saleplan | 5,632 | 24.96 | $140,575 | 23,811 | Form 4 |
| 2025-03-14 | Aebersold SarahChief Human Resources Officer | Saleplan | 5,632 | 24.96 | $140,575 | 45,860 | Form 4 |
| 2025-03-12 | Aebersold SarahChief Human Resources Officer | Saleplan | 7,324 | 26.34 | $192,914 | 51,492 | Form 4 |
| 2025-03-11 | Wichterman TroyChief Financial Officer | Saleplan | 4,151 | 25.00 | $103,775 | 116,809 | Form 4 |
| 2025-03-11 | Foster Karen A.Chief Quality and Operations | Saleplan | 1,331 | 25.00 | $33,275 | 154,912 | Form 4 |
| 2025-03-11 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 1,597 | 25.00 | $39,925 | 260,601 | Form 4 |
| 2025-03-11 | Aebersold SarahChief Human Resources Officer | Saleplan | 1,091 | 25.00 | $27,275 | 58,816 | Form 4 |
| 2025-03-11 | Berard ToddChief Marketing Officer | Saleplan | 1,577 | 25.00 | $39,425 | 104,961 | Form 4 |
| 2025-03-04 | Werner SeanChief Technology Officer | Saleplan | 88 | 24.03 | $2,115 | 4,865 | Form 4 |
| 2025-03-03 | Berard ToddChief Marketing Officer | Saleplan | 424 | 25.46 | $10,795 | 106,538 | Form 4 |
| 2025-03-03 | Aebersold SarahChief Human Resources Officer | Saleplan | 284 | 25.46 | $7,231 | 59,907 | Form 4 |
| 2025-03-03 | Wichterman TroyChief Financial Officer | Saleplan | 660 | 25.46 | $16,804 | 120,960 | Form 4 |
| 2025-03-03 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 425 | 25.46 | $10,820 | 262,198 | Form 4 |
| 2025-03-03 | Foster Karen A.Chief Quality and Operations | Saleplan | 324 | 25.46 | $8,249 | 156,243 | Form 4 |
| 2025-03-03 | Werner SeanChief Technology Officer | Saleplan | 136 | 25.46 | $3,463 | 4,953 | Form 4 |
| 2025-02-12 | Aebersold SarahChief Human Resources Officer | Saleplan | 53 | 26.54 | $1,407 | 60,191 | Form 4 |
| 2025-02-12 | Berard ToddChief Marketing Officer | Saleplan | 102 | 26.54 | $2,707 | 106,962 | Form 4 |
| 2025-02-12 | Foster Karen A.Chief Quality and Operations | Saleplan | 78 | 26.54 | $2,070 | 156,567 | Form 4 |
| 2025-02-12 | Wichterman TroyChief Financial Officer | Saleplan | 159 | 26.54 | $4,220 | 121,620 | Form 4 |
| 2025-02-12 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 92 | 26.54 | $2,442 | 262,623 | Form 4 |
| 2025-01-06 | Wichterman TroyChief Financial Officer | Saleplan | 987 | 27.02 | $26,669 | 121,779 | Form 4 |
| 2025-01-06 | Foster Karen A.Chief Quality and Operations | Saleplan | 328 | 27.02 | $8,863 | 156,645 | Form 4 |
| 2025-01-06 | Berard ToddChief Marketing Officer | Saleplan | 343 | 27.02 | $9,268 | 107,064 | Form 4 |
| 2025-01-06 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 404 | 27.02 | $10,916 | 262,715 | Form 4 |
| 2025-01-06 | Aebersold SarahChief Human Resources Officer | Saleplan | 240 | 27.02 | $6,485 | 60,244 | Form 4 |
| 2024-12-17 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 13,196 | 27.16 | $358,403 | 263,119 | Form 4 |
| 2024-12-16 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 7,604 | 27.33 | $207,817 | 276,315 | Form 4 |
| 2024-11-26 | Foster Karen A.Chief Quality and Operations | Saleplan | 252 | 27.20 | $6,854 | 156,973 | Form 4 |
| 2024-11-26 | Aebersold SarahChief Human Resources Officer | Saleplan | 216 | 27.20 | $5,875 | 60,484 | Form 4 |
| 2024-11-26 | Berard ToddChief Marketing Officer | Saleplan | 349 | 27.20 | $9,493 | 107,407 | Form 4 |
| 2024-11-26 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 523 | 27.20 | $14,226 | 283,919 | Form 4 |
| 2024-11-26 | Wichterman TroyChief Financial Officer | Saleplan | 581 | 27.20 | $15,803 | 122,766 | Form 4 |
| 2024-11-18 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 17,604 | 20.05 | $352,960 | 284,442 | Form 4 |
| 2024-11-15 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 10,000 | 21.16 | $211,600 | 317,046 | Form 4 |
| 2024-11-15 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 15,000 | 21.17 | $317,550 | 302,046 | Form 4 |
| 2024-11-12 | Wichterman TroyChief Financial Officer | Saleplan | 147 | 26.19 | $3,850 | 123,347 | Form 4 |
| 2024-11-12 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 123 | 26.34 | $3,240 | 317,046 | Form 4 |
| 2024-11-12 | Foster Karen A.Chief Quality and Operations | Saleplan | 66 | 26.34 | $1,738 | 157,225 | Form 4 |
| 2024-11-12 | Berard ToddChief Marketing Officer | Saleplan | 91 | 26.34 | $2,397 | 107,756 | Form 4 |
| 2024-10-31 | De Greef RoderickDirector, President and CEO | Saleplan | 46,896 | 23.43 | $1.10M | 414,958 | Form 4 |
| 2024-10-30 | Wichterman TroyChief Financial Officer | Saleplan | 894 | 23.15 | $20,696 | 123,494 | Form 4 |
| 2024-10-30 | Mathew Aby J.EVP & Chief Scientific Officer | Saleplan | 547 | 23.15 | $12,663 | 317,169 | Form 4 |
| 2024-10-30 | Foster Karen A.Chief Quality and Operations | Saleplan | 277 | 23.15 | $6,413 | 157,291 | Form 4 |
| 2024-10-30 | Berard ToddChief Marketing Officer | Saleplan | 311 | 23.15 | $7,200 | 107,847 | Form 4 |
| 2024-10-30 | Aebersold SarahChief Human Resources Officer | Saleplan | 203 | 23.15 | $4,699 | 60,700 | Form 4 |
Grants, exercises and other transactions
Pay, tax and paperwork rather than a choice to trade at the market price. Two years.
47 × grant or award42 × shares withheld for tax11 × returned to the company1 × other1 × option exercise
Show them
| Date | Insider | What | Shares | Price | Holds after | Filing |
|---|---|---|---|---|---|---|
| 2026-10-06 | Werner SeanChief Technology Officer | Grant or award A | +45,838 | – | 47,033 | Form 4 |
| 2026-10-06 | Werner SeanChief Technology Officer | Grant or award A | +48,232 | – | 95,265 | Form 4 |
| 2026-10-06 | Werner SeanChief Technology Officer | Shares withheld for tax F | −71,226 | 38.61 | 24,039 | Form 4 |
| 2026-10-06 | Werner SeanChief Technology Officer | Returned to the company D | −69,979 | – | 0 | Form 4 |
| 2026-10-06 | Berard ToddChief Marketing Officer | Grant or award A | +38,198 | – | 162,567 | Form 4 |
| 2026-10-06 | Berard ToddChief Marketing Officer | Grant or award A | +40,192 | – | 202,759 | Form 4 |
| 2026-10-06 | Berard ToddChief Marketing Officer | Shares withheld for tax F | −46,170 | 38.61 | 156,589 | Form 4 |
| 2026-10-06 | Berard ToddChief Marketing Officer | Returned to the company D | −194,786 | – | 0 | Form 4 |
| 2026-10-06 | Mathew Aby J.EVP & Chief Scientific Officer | Grant or award A | +45,838 | – | 343,866 | Form 4 |
| 2026-10-06 | Mathew Aby J.EVP & Chief Scientific Officer | Grant or award A | +40,192 | – | 384,058 | Form 4 |
| 2026-10-06 | Mathew Aby J.EVP & Chief Scientific Officer | Shares withheld for tax F | −70,000 | 38.61 | 314,058 | Form 4 |
| 2026-10-06 | Mathew Aby J.EVP & Chief Scientific Officer | Returned to the company D | −404,608 | – | 0 | Form 4 |
| 2026-10-06 | Moore Timothy L.Director | Returned to the company D | −44,943 | – | 0 | Form 4 |
| 2026-10-06 | Hunt AnthonyDirector | Returned to the company D | −15,046 | – | 0 | Form 4 |
| 2026-10-06 | De Greef RoderickDirector, Chief Executive Officer | Grant or award A | +225,670 | – | 567,186 | Form 4 |
| 2026-10-06 | De Greef RoderickDirector, Chief Executive Officer | Grant or award A | +237,460 | – | 804,646 | Form 4 |
| 2026-10-06 | De Greef RoderickDirector, Chief Executive Officer | Shares withheld for tax F | −364,872 | 38.61 | 439,774 | Form 4 |
| 2026-10-06 | De Greef RoderickDirector, Chief Executive Officer | Returned to the company D | −826,454 | – | 0 | Form 4 |
| 2026-10-06 | Coste CatherineDirector | Returned to the company D | −13,871 | – | 0 | Form 4 |
| 2026-10-06 | DuRoss AmyDirector | Returned to the company D | −26,857 | – | 0 | Form 4 |
| 2026-10-06 | Ellingson RachelDirector | Returned to the company D | −57,995 | – | 0 | Form 4 |
| 2026-10-06 | Goswami JoydeepDirector | Returned to the company D | −53,156 | – | 0 | Form 4 |
| 2026-10-06 | Wichterman TroyChief Financial Officer | Grant or award A | +76,204 | – | 216,881 | Form 4 |
| 2026-10-06 | Wichterman TroyChief Financial Officer | Grant or award A | +62,300 | – | 279,181 | Form 4 |
| 2026-10-06 | Wichterman TroyChief Financial Officer | Shares withheld for tax F | −95,933 | 38.61 | 183,248 | Form 4 |
| 2026-10-06 | Wichterman TroyChief Financial Officer | Returned to the company D | −256,000 | – | 0 | Form 4 |
| 2026-09-18 | Wichterman TroyChief Financial Officer | Shares withheld for tax F | −937 | 36.69 | 211,286 | Form 4 |
| 2026-09-18 | De Greef RoderickDirector, President and CEO | Shares withheld for tax F | −2,775 | 36.69 | 728,196 | Form 4 |
| 2026-09-18 | Werner SeanChief Technology Officer | Shares withheld for tax F | −421 | 36.69 | 47,135 | Form 4 |
| 2026-09-18 | Mathew Aby J.EVP & Chief Scientific Officer | Shares withheld for tax F | −564 | 36.69 | 387,269 | Form 4 |
| 2026-09-18 | Berard ToddChief Marketing Officer | Shares withheld for tax F | −470 | 36.69 | 161,823 | Form 4 |
| 2026-09-08 | Wichterman TroyChief Financial Officer | Shares withheld for tax F | −1,026 | 35.38 | 212,223 | Form 4 |
| 2026-09-08 | Mathew Aby J.EVP & Chief Scientific Officer | Shares withheld for tax F | −627 | 35.38 | 387,833 | Form 4 |
| 2026-09-08 | Berard ToddChief Marketing Officer | Shares withheld for tax F | −356 | 35.38 | 162,293 | Form 4 |
| 2026-07-17 | Werner SeanChief Technology Officer | Shares withheld for tax F | −275 | 29.15 | 47,556 | Form 4 |
| 2026-07-07 | Berard ToddChief Marketing Officer | Shares withheld for tax F | −293 | 27.79 | 162,649 | Form 4 |
| 2026-07-07 | Mathew Aby J.EVP & Chief Scientific Officer | Shares withheld for tax F | −516 | 27.79 | 388,460 | Form 4 |
| 2026-07-07 | Wichterman TroyChief Financial Officer | Shares withheld for tax F | −844 | 27.79 | 213,249 | Form 4 |
| 2026-06-18 | Mathew Aby J.EVP & Chief Scientific Officer | Shares withheld for tax F | −564 | 26.04 | 388,976 | Form 4 |
| 2026-06-18 | Wichterman TroyChief Financial Officer | Shares withheld for tax F | −937 | 26.04 | 214,093 | Form 4 |
| 2026-06-18 | De Greef RoderickDirector, President and CEO | Shares withheld for tax F | −2,775 | 26.04 | 730,971 | Form 4 |
| 2026-06-18 | Werner SeanChief Technology Officer | Shares withheld for tax F | −420 | 26.04 | 47,831 | Form 4 |
| 2026-06-18 | Berard ToddChief Marketing Officer | Shares withheld for tax F | −470 | 26.04 | 162,942 | Form 4 |
| 2026-06-08 | Mathew Aby J.EVP & Chief Scientific Officer | Shares withheld for tax F | −627 | 26.10 | 389,540 | Form 4 |
| 2026-06-08 | Berard ToddChief Marketing Officer | Shares withheld for tax F | −356 | 26.10 | 163,412 | Form 4 |
| 2026-06-08 | Wichterman TroyChief Financial Officer | Shares withheld for tax F | −1,026 | 26.10 | 215,030 | Form 4 |
| 2026-04-08 | Wichterman TroyChief Financial Officer | Shares withheld for tax F | −844 | 19.27 | 216,056 | Form 4 |
| 2026-04-08 | Berard ToddChief Marketing Officer | Shares withheld for tax F | −293 | 19.27 | 163,768 | Form 4 |
| 2026-04-08 | Mathew Aby J.EVP & Chief Scientific Officer | Shares withheld for tax F | −515 | 19.27 | 390,167 | Form 4 |
| 2026-03-19 | Mathew Aby J.EVP & Chief Scientific Officer | Shares withheld for tax F | −2,255 | 19.12 | 390,682 | Form 4 |
| 2026-03-19 | Foster Karen A.Chief Quality and Operations | Shares withheld for tax F | −1,907 | 19.12 | 111,335 | Form 4 |
| 2026-03-19 | Aebersold SarahChief Human Resources Officer | Shares withheld for tax F | −931 | 19.12 | 92,429 | Form 4 |
| 2026-03-19 | Wichterman TroyChief Financial Officer | Shares withheld for tax F | −3,749 | 19.12 | 216,900 | Form 4 |
| 2026-03-19 | Werner SeanChief Technology Officer | Shares withheld for tax F | −1,681 | 19.12 | 48,251 | Form 4 |
| 2026-03-19 | Berard ToddChief Marketing Officer | Shares withheld for tax F | −1,879 | 19.12 | 164,061 | Form 4 |
| 2026-03-19 | De Greef RoderickDirector, President and CEO | Shares withheld for tax F | −11,101 | 19.12 | 733,746 | Form 4 |
| 2026-02-24 | Goswami JoydeepDirector | Grant or award A | +8,170 | – | 53,156 | Form 4 |
| 2026-02-24 | Foster Karen A.Chief Quality and Operations | Grant or award A | +32,112 | – | 224,096 | Form 4 |
| 2026-02-24 | Foster Karen A.Chief Quality and Operations | Shares withheld for tax F | −13,013 | 22.65 | 211,083 | Form 4 |
| 2026-02-24 | Moore Timothy L.Director | Grant or award A | +8,170 | – | 44,943 | Form 4 |
| 2026-02-24 | Werner SeanChief Technology Officer | Grant or award A | +24,116 | – | 50,043 | Form 4 |
| 2026-02-24 | Aebersold SarahChief Human Resources Officer | Grant or award A | +23,548 | – | 99,313 | Form 4 |
| 2026-02-24 | Aebersold SarahChief Human Resources Officer | Shares withheld for tax F | −5,734 | 22.65 | 93,579 | Form 4 |
| 2026-02-24 | Mathew Aby J.EVP & Chief Scientific Officer | Grant or award A | +20,096 | – | 369,446 | Form 4 |
| 2026-02-24 | Mathew Aby J.EVP & Chief Scientific Officer | Grant or award A | +39,605 | – | 409,051 | Form 4 |
| 2026-02-24 | Mathew Aby J.EVP & Chief Scientific Officer | Shares withheld for tax F | −15,585 | 22.65 | 393,466 | Form 4 |
| 2026-02-24 | De Greef RoderickDirector, President and CEO | Grant or award A | +118,730 | – | 508,728 | Form 4 |
| 2026-02-24 | De Greef RoderickDirector, President and CEO | Grant or award A | +170,291 | – | 679,019 | Form 4 |
| 2026-02-24 | De Greef RoderickDirector, President and CEO | Shares withheld for tax F | −67,010 | 22.65 | 612,009 | Form 4 |
| 2026-02-24 | De Greef RoderickDirector, President and CEO | Grant or award A | +219,024 | – | 831,033 | Form 4 |
| 2026-02-24 | De Greef RoderickDirector, President and CEO | Shares withheld for tax F | −86,186 | 22.65 | 744,847 | Form 4 |
| 2026-02-24 | Ellingson RachelDirector | Grant or award A | +8,170 | – | 57,995 | Form 4 |
| 2026-02-24 | Coste CatherineDirector | Grant or award A | +8,170 | – | 13,871 | Form 4 |
| 2026-02-24 | Hunt AnthonyDirector | Grant or award A | +8,170 | – | 15,046 | Form 4 |
| 2026-02-24 | Wichterman TroyChief Financial Officer | Grant or award A | +31,150 | – | 181,896 | Form 4 |
| 2026-02-24 | Wichterman TroyChief Financial Officer | Grant or award A | +64,866 | – | 246,762 | Form 4 |
| 2026-02-24 | Wichterman TroyChief Financial Officer | Shares withheld for tax F | −25,525 | 22.65 | 221,237 | Form 4 |
| 2026-02-24 | DuRoss AmyDirector | Grant or award A | +8,170 | – | 26,857 | Form 4 |
| 2026-02-24 | Berard ToddChief Marketing Officer | Grant or award A | +20,096 | – | 152,660 | Form 4 |
| 2026-02-24 | Berard ToddChief Marketing Officer | Grant or award A | +22,479 | – | 175,139 | Form 4 |
| 2026-02-24 | Berard ToddChief Marketing Officer | Shares withheld for tax F | −8,846 | 22.65 | 166,293 | Form 4 |
| 2025-05-29 | Mathew Aby J.EVP & Chief Scientific Officer | Grant or award A | +45,269 | – | 353,755 | Form 4 |
| 2025-04-07 | Casdin Partners GP, LLC10% owner | Other J | +27,994 | – | 8,735,159 | Form 4 |
| 2025-03-18 | De Greef RoderickDirector, President and CEO | Grant or award A | +112,835 | – | 527,793 | Form 4 |
| 2025-03-18 | Werner SeanChief Technology Officer | Grant or award A | +22,919 | – | 27,784 | Form 4 |
| 2025-03-18 | Goswami JoydeepDirector | Grant or award A | +6,876 | – | 47,986 | Form 4 |
| 2025-03-18 | Wichterman TroyChief Financial Officer | Grant or award A | +38,102 | – | 154,911 | Form 4 |
| 2025-03-18 | Wichterman TroyChief Financial Officer | Grant or award A | +60,018 | – | 214,929 | Form 4 |
| 2025-03-18 | Berard ToddChief Marketing Officer | Grant or award A | +19,099 | – | 124,060 | Form 4 |
| 2025-03-18 | Berard ToddChief Marketing Officer | Grant or award A | +20,798 | – | 144,858 | Form 4 |
| 2025-03-18 | Mathew Aby J.EVP & Chief Scientific Officer | Grant or award A | +22,919 | – | 283,520 | Form 4 |
| 2025-03-18 | Mathew Aby J.EVP & Chief Scientific Officer | Grant or award A | +36,645 | – | 320,165 | Form 4 |
| 2025-03-18 | Ellingson RachelDirector | Grant or award A | +6,876 | – | 49,825 | Form 4 |
| 2025-03-18 | Foster Karen A.Chief Quality and Operations | Grant or award A | +19,099 | – | 174,011 | Form 4 |
| 2025-03-18 | Foster Karen A.Chief Quality and Operations | Grant or award A | +29,711 | – | 203,722 | Form 4 |
| 2025-03-18 | Moore Timothy L.Director | Grant or award A | +6,876 | – | 36,773 | Form 4 |
| 2025-03-18 | Hunt AnthonyDirector | Grant or award A | +6,876 | – | 6,876 | Form 4 |
| 2025-03-18 | Coste CatherineDirector | Grant or award A | +5,701 | – | 5,701 | Form 4 |
| 2025-03-18 | DuRoss AmyDirector | Grant or award A | +6,876 | – | 30,687 | Form 4 |
| 2025-03-18 | Aebersold SarahChief Human Resources Officer | Grant or award A | +15,279 | – | 64,076 | Form 4 |
| 2025-03-18 | Aebersold SarahChief Human Resources Officer | Grant or award A | +21,789 | – | 85,865 | Form 4 |
| 2024-11-15 | Mathew Aby J.EVP & Chief Scientific Officer | Option exercise M | +10,000 | 2.06 | 327,046 | Form 4 |
How to read it
- Buy, sale
- Code P and S on the form: shares bought or sold in the market, at the market price. The other codes are mostly pay (a grant, an option exercised) or tax (shares the company withheld), and say little about what the insider thinks of the price.
- Plan
- A sale or purchase under a Rule 10b5-1 plan, set up in advance and running on its own schedule. Since April 2023 the form has a box for it. Much executive selling is planned and says more about diversifying than about the company.
- Holds after
- The shares the insider still held after the trade, in the form the trade was in (directly, or indirectly through a trust or a fund).
- Value
- Shares times the price the form reports, which is often an average over several fills on the day.
Read from the SEC's own quarterly data sets of Forms 3, 4 and 5, and from each day's filings since the last one. A correcting amendment replaces the lines it restates. Every row links to its filing. None of this is advice: insiders sell for many reasons, and buy for fewer.