See how company executives and directors have been buying or selling shares over the past 30 days. Insider trading activity can help investors better understand company leadership's actions.
Transactions7
Insider Involved1
Total Buys$284.18K
Total Sells$0.00
Browse insider buying and selling activity reported to the SEC over the past year, including who traded, when they traded, and the value of each transaction.
DATE INSIDER |
INSIDER | TYPE | SHARES | PRICE | SHARES PRICE VALUE |
|---|---|---|---|---|---|
Jul 21, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
2,975 | $2.44 | 2,975 $2.44 $7,259 |
Jul 20, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
1,623 | $2.44 | 1,623 $2.44 $3,960 |
Jul 17, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
265 | $2.44 | 265 $2.44 $647 |
Jul 16, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
18,491 | $2.44 | 18,491 $2.44 $45,118 |
Jul 15, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
1,600 | $2.44 | 1,600 $2.44 $3,904 |
Jul 14, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
43,878 | $2.43 | 43,878 $2.43 $106,624 |
Jul 13, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
48,211 | $2.42 | 48,211 $2.42 $116,671 |
Jul 10, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
43,367 | $2.43 | 43,367 $2.43 $105,382 |
Jul 09, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
7 | $2.48 | 7 $2.48 $17 |
Jul 08, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
14,338 | $2.46 | 14,338 $2.46 $35,271 |
Jul 07, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
15,810 | $2.48 | 15,810 $2.48 $39,209 |
Jul 06, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
27,062 | $2.49 | 27,062 $2.49 $67,384 |
Jul 02, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
9,821 | $2.49 | 9,821 $2.49 $24,454 |
Jul 01, 2026 ARCH Venture Fund IX, L.P. |
ARCH Venture Fund IX, L.P.
|
Sell |
16,000 | $2.49 | 16,000 $2.49 $39,840 |
Jul 01, 2026 CRANDELL KEITH |
CRANDELL KEITH
|
Sell |
16,000 | $2.49 | 16,000 $2.49 $39,840 |
Jul 01, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
71,612 | $2.49 | 71,612 $2.49 $178,314 |
Jun 30, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
100 | $2.50 | 100 $2.50 $250 |
Jun 30, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
25,930 | $2.54 | 25,930 $2.54 $65,862 |
Jun 29, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
777 | $2.48 | 777 $2.48 $1,927 |
Jun 29, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
63,985 | $2.47 | 63,985 $2.47 $158,043 |
Jun 26, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
134 | $2.54 | 134 $2.54 $340 |
Jun 26, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
75,047 | $2.55 | 75,047 $2.55 $191,370 |
Jun 25, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
510 | $2.56 | 510 $2.56 $1,306 |
Jun 25, 2026 TANG KEVIN C |
TANG KEVIN C
|
Buy |
145,880 | $2.48 | 145,880 $2.48 $361,782 |
View older insider trading records reported to the SEC to research long-term buying and selling trends.
DATE INSIDER |
INSIDER | TYPE | SHARES | PRICE | SHARES PRICE VALUE |
|---|---|---|---|---|---|
Apr 02, 2024 CRANDELL KEITH |
CRANDELL KEITH
|
Buy |
66,667 | $16.00 | 66,667 $16.00 $1,066,672 |
Apr 02, 2024 RA CAPITAL MANAGEMENT, L.P. |
RA CAPITAL MANAGEMENT, L.P.
|
Buy |
296,875 | $16.00 | 296,875 $16.00 $4,750,000 |
Apr 02, 2024 CRANDELL KEITH |
CRANDELL KEITH
|
Buy |
133,333 | $16.00 | 133,333 $16.00 $2,133,328 |
Apr 02, 2024 RA CAPITAL MANAGEMENT, L.P. |
RA CAPITAL MANAGEMENT, L.P.
|
Buy |
15,625 | $16.00 | 15,625 $16.00 $250,000 |
Apr 02, 2024 Burow Kristina |
Burow Kristina
|
Buy |
66,667 | $16.00 | 66,667 $16.00 $1,066,672 |
Apr 02, 2024 ARCH Venture Fund IX, L.P. |
ARCH Venture Fund IX, L.P.
|
Buy |
133,333 | $16.00 | 133,333 $16.00 $2,133,328 |
Apr 02, 2024 ARCH Venture Fund IX, L.P. |
ARCH Venture Fund IX, L.P.
|
Buy |
66,667 | $16.00 | 66,667 $16.00 $1,066,672 |
Apr 02, 2024 Burow Kristina |
Burow Kristina
|
Buy |
133,333 | $16.00 | 133,333 $16.00 $2,133,328 |
Dec 23, 2019 LANGE LOUIS G |
LANGE LOUIS G
|
Sell |
1,000 | $59.60 | 1,000 $59.60 $59,596 |
Dec 23, 2019 LANGE LOUIS G |
LANGE LOUIS G
|
Sell |
10,000 | $59.60 | 10,000 $59.60 $595,993 |
Nov 08, 2019 Patterson Matthew R |
Patterson Matthew R
CEO
|
Sell |
14,426 | $30.00 | 14,426 $30.00 $432,780 |
Sep 23, 2019 LANGE LOUIS G |
LANGE LOUIS G
|
Sell |
1,000 | $32.18 | 1,000 $32.18 $32,182 |
Sep 23, 2019 LANGE LOUIS G |
LANGE LOUIS G
|
Sell |
245 | $32.66 | 245 $32.66 $8,002 |
Sep 23, 2019 LANGE LOUIS G |
LANGE LOUIS G
|
Sell |
9,755 | $32.15 | 9,755 $32.15 $313,613 |
Aug 12, 2019 Patterson Matthew R |
Patterson Matthew R
CEO
|
Sell |
1,000 | $34.53 | 1,000 $34.53 $34,525 |
Aug 12, 2019 Patterson Matthew R |
Patterson Matthew R
CEO
|
Sell |
19,000 | $34.02 | 19,000 $34.02 $646,310 |
Jun 24, 2019 LANGE LOUIS G |
LANGE LOUIS G
|
Sell |
15,798 | $37.60 | 15,798 $37.60 $594,005 |
Jun 24, 2019 LANGE LOUIS G |
LANGE LOUIS G
|
Sell |
3,602 | $38.15 | 3,602 $38.15 $137,409 |
Jun 24, 2019 LANGE LOUIS G |
LANGE LOUIS G
|
Sell |
600 | $40.00 | 600 $40.00 $23,999 |
Jun 24, 2019 LANGE LOUIS G |
LANGE LOUIS G
|
Sell |
800 | $37.89 | 800 $37.89 $30,309 |
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