The table below lists insider purchases and sales reported by company officers, directors, and major shareholders during the last 12 months.
DATE INSIDER |
INSIDER | TYPE | SHARES | PRICE | SHARES PRICE VALUE |
|---|---|---|---|---|---|
Aug 27, 2025 STAHLBERG JAN |
STAHLBERG JAN
|
Buy |
50,772 | $6.00 | 50,772 $6.00 $304,632 |
Aug 26, 2025 STAHLBERG JAN |
STAHLBERG JAN
|
Buy |
59,648 | $6.00 | 59,648 $6.00 $357,888 |
Aug 25, 2025 STAHLBERG JAN |
STAHLBERG JAN
|
Buy |
338,265 | $6.00 | 338,265 $6.00 $2,029,252 |
Aug 22, 2025 STAHLBERG JAN |
STAHLBERG JAN
|
Buy |
59,788 | $5.96 | 59,788 $5.96 $356,576 |
Aug 21, 2025 STAHLBERG JAN |
STAHLBERG JAN
|
Buy |
48,172 | $5.96 | 48,172 $5.96 $287,028 |
Aug 20, 2025 STAHLBERG JAN |
STAHLBERG JAN
|
Buy |
71,107 | $5.86 | 71,107 $5.86 $416,495 |
Aug 15, 2025 STAHLBERG JAN |
STAHLBERG JAN
|
Buy |
8,233 | $6.00 | 8,233 $6.00 $49,398 |
Aug 14, 2025 STAHLBERG JAN |
STAHLBERG JAN
|
Buy |
70,414 | $5.99 | 70,414 $5.99 $421,921 |
Aug 13, 2025 STAHLBERG JAN |
STAHLBERG JAN
|
Buy |
293,601 | $5.91 | 293,601 $5.91 $1,734,918 |
Jul 23, 2025 JACINTO RICHARD II |
JACINTO RICHARD II
|
Buy |
400,000 | $3.50 | 400,000 $3.50 $1,400,000 |
Jul 23, 2025 Von Koch Thomas |
Von Koch Thomas
|
Buy |
2,857,142 | $3.50 | 2,857,142 $3.50 $9,999,997 |
Jul 23, 2025 STAHLBERG JAN |
STAHLBERG JAN
|
Buy |
1,542,857 | $3.50 | 1,542,857 $3.50 $5,400,000 |
Jun 28, 2024 STAHLBERG JAN |
STAHLBERG JAN
|
Buy |
1,200,000 | $2.50 | 1,200,000 $2.50 $3,000,000 |
Jun 28, 2024 Von Koch Thomas |
Von Koch Thomas
|
Buy |
1,200,000 | $2.50 | 1,200,000 $2.50 $3,000,000 |
Nov 16, 2023 Wambeke David J. |
Wambeke David J.
CBO
|
Buy |
20,000 | $2.46 | 20,000 $2.46 $49,200 |
Jun 23, 2023 Kellen Scott |
Kellen Scott
CFO and Secretary
|
Buy |
10,000 | $3.91 | 10,000 $3.91 $39,100 |
Jun 23, 2023 Pauls Dietrich John |
Pauls Dietrich John
President and CEO
|
Buy |
12,787 | $3.91 | 12,787 $3.91 $49,997 |
Jun 23, 2023 Semba Charles Pauling |
Semba Charles Pauling
|
Buy |
12,787 | $3.91 | 12,787 $3.91 $49,997 |
Jun 23, 2023 Pilnik Richard D. |
Pilnik Richard D.
|
Buy |
38,363 | $3.91 | 38,363 $3.91 $149,999 |
Jun 23, 2023 Von Koch Thomas |
Von Koch Thomas
|
Buy |
1,470,588 | $3.40 | 1,470,588 $3.40 $4,999,999 |
Jun 23, 2023 Giuffre Randall Michael |
Giuffre Randall Michael
|
Buy |
65,000 | $3.91 | 65,000 $3.91 $254,150 |
Jun 23, 2023 Wambeke David J. |
Wambeke David J.
CBO
|
Buy |
38,364 | $3.91 | 38,364 $3.91 $150,003 |
Apr 10, 2023 Wambeke David J. |
Wambeke David J.
CBO
|
Buy |
468,750 | $1.60 | 468,750 $1.60 $750,000 |
Dec 09, 2022 Giuffre Randall Michael |
Giuffre Randall Michael
|
Buy |
37,079 | $1.43 | 37,079 $1.43 $53,023 |
Dec 08, 2022 Giuffre Randall Michael |
Giuffre Randall Michael
|
Buy |
20,000 | $1.40 | 20,000 $1.40 $28,000 |
Dec 07, 2022 Giuffre Randall Michael |
Giuffre Randall Michael
|
Buy |
22,574 | $1.40 | 22,574 $1.40 $31,604 |
Dec 06, 2022 Giuffre Randall Michael |
Giuffre Randall Michael
|
Buy |
2,300 | $1.35 | 2,300 $1.35 $3,105 |
Dec 05, 2022 Pilnik Richard D. |
Pilnik Richard D.
|
Buy |
35,000 | $1.39 | 35,000 $1.39 $48,493 |
Dec 02, 2022 Von Koch Thomas |
Von Koch Thomas
|
Buy |
2,855,847 | $1.24 | 2,855,847 $1.24 $3,526,971 |
Dec 02, 2022 Von Koch Thomas |
Von Koch Thomas
|
Sell |
2,855,847 | $1.24 | 2,855,847 $1.24 $3,526,971 |
Dec 01, 2022 Giuffre Randall Michael |
Giuffre Randall Michael
|
Buy |
46,133 | $1.20 | 46,133 $1.20 $55,360 |
Dec 01, 2022 Giuffre Randall Michael |
Giuffre Randall Michael
|
Buy |
819 | $1.19 | 819 $1.19 $975 |
Nov 30, 2022 Giuffre Randall Michael |
Giuffre Randall Michael
|
Buy |
2,970 | $1.19 | 2,970 $1.19 $3,534 |
Nov 29, 2022 Giuffre Randall Michael |
Giuffre Randall Michael
|
Buy |
18,125 | $1.19 | 18,125 $1.19 $21,569 |
Nov 16, 2022 Pauls Dietrich John |
Pauls Dietrich John
President and CEO
|
Buy |
20,000 | $1.21 | 20,000 $1.21 $24,200 |
Jul 08, 2022 Von Koch Thomas |
Von Koch Thomas
|
Buy |
207,974 | $1.33 | 207,974 $1.33 $275,898 |
Sep 15, 2021 ALCORN HARRY W JR |
ALCORN HARRY W JR
SVP, Clinical Operations
|
Buy |
15,000 | $3.80 | 15,000 $3.80 $56,960 |
Aug 16, 2021 Kellen Scott |
Kellen Scott
CFO and Secretary
|
Buy |
10,000 | $3.15 | 10,000 $3.15 $31,463 |
Aug 16, 2021 ALCORN HARRY W JR |
ALCORN HARRY W JR
Senior VP, Clinical Operations
|
Buy |
20,000 | $3.09 | 20,000 $3.09 $61,844 |
Aug 16, 2021 ALCORN HARRY W JR |
ALCORN HARRY W JR
Senior VP, Clinical Operations
|
Buy |
322 | $3.06 | 322 $3.06 $985 |
Aug 16, 2021 ALCORN HARRY W JR |
ALCORN HARRY W JR
Senior VP, Clinical Operations
|
Buy |
399 | $3.07 | 399 $3.07 $1,225 |
Aug 16, 2021 Pauls Dietrich John |
Pauls Dietrich John
President and CEO
|
Buy |
5,000 | $3.14 | 5,000 $3.14 $15,700 |
Aug 16, 2021 Burroughs Amy L. |
Burroughs Amy L.
|
Buy |
44,950 | $3.15 | 44,950 $3.15 $141,593 |
Aug 16, 2021 Pilnik Richard D. |
Pilnik Richard D.
|
Buy |
12,500 | $3.28 | 12,500 $3.28 $41,033 |
Aug 16, 2021 Pilnik Richard D. |
Pilnik Richard D.
|
Buy |
2,500 | $3.21 | 2,500 $3.21 $8,032 |
Dec 04, 2020 Pilnik Richard D. |
Pilnik Richard D.
|
Buy |
5,000 | $5.50 | 5,000 $5.50 $27,497 |
Dec 04, 2020 Pilnik Richard D. |
Pilnik Richard D.
|
Buy |
5,000 | $5.24 | 5,000 $5.24 $26,200 |
Nov 20, 2020 Giuffre Randall Michael |
Giuffre Randall Michael
|
Buy |
15,000 | $4.26 | 15,000 $4.26 $63,912 |
Nov 09, 2020 Kellen Scott |
Kellen Scott
CFO and Secretary
|
Buy |
2,000 | $4.19 | 2,000 $4.19 $8,387 |
Aug 19, 2019 Kellen Scott |
Kellen Scott
CFO and Secretary
|
Buy |
3,000 | $2.43 | 3,000 $2.43 $7,290 |
Aug 16, 2019 Pauls Dietrich John |
Pauls Dietrich John
President and CEO
|
Buy |
1,000 | $2.68 | 1,000 $2.68 $2,677 |
Aug 16, 2019 ALCORN HARRY W JR |
ALCORN HARRY W JR
CMO
|
Buy |
7,260 | $2.67 | 7,260 $2.67 $19,365 |
Aug 16, 2019 Pilnik Richard D. |
Pilnik Richard D.
|
Buy |
7,840 | $2.56 | 7,840 $2.56 $20,039 |
May 31, 2019 Pilnik Richard D. |
Pilnik Richard D.
|
Buy |
19,000 | $2.80 | 19,000 $2.80 $53,200 |
May 24, 2019 Kellen Scott |
Kellen Scott
CFO and Secretary
|
Buy |
4,000 | $2.94 | 4,000 $2.94 $11,770 |
Mar 27, 2019 ALCORN HARRY W JR |
ALCORN HARRY W JR
CMO
|
Buy |
150 | $4.46 | 150 $4.46 $668 |
Dec 11, 2018 Verdoorn Todd A. |
Verdoorn Todd A.
Chief Scientific Officer
|
Buy |
1,000 | $4.00 | 1,000 $4.00 $4,000 |
Dec 11, 2018 Xiao Zhenyu |
Xiao Zhenyu
|
Buy |
3,250 | $4.00 | 3,250 $4.00 $13,000 |
Dec 11, 2018 ALCORN HARRY W JR |
ALCORN HARRY W JR
CMO
|
Buy |
1,000 | $4.00 | 1,000 $4.00 $4,000 |
Dec 11, 2018 Kellen Scott |
Kellen Scott
CFO and Secretary
|
Buy |
1,250 | $4.00 | 1,250 $4.00 $5,000 |
Dec 11, 2018 Pilnik Richard D. |
Pilnik Richard D.
|
Buy |
6,250 | $4.00 | 6,250 $4.00 $25,000 |
Dec 11, 2018 Parsons James T. |
Parsons James T.
|
Buy |
2,250 | $4.00 | 2,250 $4.00 $9,000 |
Dec 11, 2018 Giuffre Randall Michael |
Giuffre Randall Michael
|
Buy |
11,250 | $4.00 | 11,250 $4.00 $45,000 |
Dec 11, 2018 Pauls Dietrich John |
Pauls Dietrich John
President and CEO
|
Buy |
5,000 | $4.00 | 5,000 $4.00 $20,000 |
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