Insider Transactions last 24 months for Twist Bioscience Corporation - NSDQ: TWST
Transactions
All
Buy
Sell
Option Exercise
Filer's Name
Relationship/
Trans.
Trans. Type
Ownership Type
Security Type
Shares
Price
Trans.
Total Shares Owned
Leproust Emily M. Chief Executive Officer 03/20/2026 DS Direct COM 1,742 $43.79 $76,275.91 858,887 Green Paula SVP of Human Resources 03/20/2026 DS Direct COM 297 $43.79 $13,004.56 124,104 Cho Dennis See Remarks 03/20/2026 DS Direct COM 354 $43.79 $15,500.39 137,903 Chess Robert Director 03/17/2026 DS Direct COM 10,000 $47.00 $470,000.00 21,084 Chess Robert Director 03/17/2026 AM Direct COM 10,000 $11.89 $118,900.00 31,084 Leproust Emily M. Chief Executive Officer 03/06/2026 DS Direct COM 2,423 $46.43 $112,490.20 860,629 Green Paula SVP of Human Resources 03/06/2026 DS Direct COM 935 $46.43 $43,408.31 124,401 Cho Dennis See Remarks 03/06/2026 DS Direct COM 425 $46.43 $19,731.05 138,257 Werner Robert F. Chief Accounting Officer 03/06/2026 DS Direct COM 246 $46.43 $11,420.80 54,799 Leproust Emily M. Chief Executive Officer 02/23/2026 DS Direct COM 7,205 $46.71 $336,544.11 863,052 Laponis Adam Chief Financial Officer 02/23/2026 DS Direct COM 2,085 $46.71 $97,389.93 128,291 Werner Robert F. Chief Accounting Officer 02/23/2026 DS Direct COM 1,693 $46.71 $79,079.69 55,045 Finn Patrick John President and COO 02/23/2026 DS Direct COM 4,294 $46.71 $200,571.88 284,129 Cho Dennis See Remarks 02/23/2026 DS Direct COM 844 $46.71 $39,423.07 138,682 Green Paula SVP of Human Resources 02/23/2026 DS Direct COM 1,465 $46.71 $68,429.86 125,336 Finn Patrick John President and COO 02/17/2026 DS Direct COM 3,541 $53.11 $188,062.51 287,788 Finn Patrick John President and COO 02/17/2026 DS Direct COM 26,952 $52.69 $1,419,993.07 291,329 Finn Patrick John President and COO 02/17/2026 DS Direct COM 16,616 $51.42 $854,444.57 318,281 Finn Patrick John President and COO 02/17/2026 DS Direct COM 21,858 $50.32 $1,099,916.42 334,897 Finn Patrick John President and COO 02/17/2026 AM Direct COM 32,300 $26.66 $861,118.00 356,755 Finn Patrick John President and COO 02/17/2026 AM Direct COM 18,205 $23.33 $424,722.65 324,455 Green Paula SVP of Human Resources 02/17/2026 DS Direct COM 39,404 $52.40 $2,064,769.60 126,041 Finn Patrick John President and COO 02/13/2026 DS Direct COM 1,750 $50.04 $87,571.75 306,250 Finn Patrick John President and COO 02/13/2026 AM Direct COM 712 $26.66 $18,981.92 308,000 Finn Patrick John President and COO 02/13/2026 AM Direct COM 500 $23.33 $11,665.00 307,288
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Filer's Name
Relationship/
Trans.
Trans. Type
Ownership Type
Security Type
Shares
Price
Trans.
Total Shares Owned
Johannessen Jan Director 02/05/2026 AA Direct COM 5,095 $0.00 $0.00 19,954 Blake Katryn Director 02/05/2026 AA Direct COM 5,095 $0.00 $0.00 19,448 Chan Nelson Director 02/05/2026 AA Direct COM 5,095 $0.00 $0.00 33,251 Chess Robert Director 02/05/2026 AA Direct COM 5,095 $0.00 $0.00 23,268 Ragusa Robert P Director 02/05/2026 AA Direct COM 5,095 $0.00 $0.00 28,983 Starovasnik Melissa A. Director 02/05/2026 AA Direct COM 5,095 $0.00 $0.00 26,722 Crandell Keith Director 02/05/2026 AA Direct COM 5,095 $0.00 $0.00 27,571 Werner Robert F. Chief Accounting Officer 11/18/2025 AA Direct COM 16,324 $0.00 $0.00 67,194 Green Paula SVP of Human Resources 11/18/2025 AA Direct COM 26,200 $0.00 $0.00 168,387 Cho Dennis See Remarks 11/18/2025 AA Direct COM 25,465 $0.00 $0.00 146,159 Finn Patrick John President and COO 11/18/2025 AA Direct COM 68,740 $0.00 $0.00 334,659 Laponis Adam Chief Financial Officer 11/18/2025 AA Direct COM 32,648 $0.00 $0.00 143,656 Leproust Emily M. Chief Executive Officer 11/18/2025 AA Direct COM 146,914 $0.00 $0.00 880,836 Laponis Adam Chief Financial Officer 10/28/2025 AA Direct COM 25,000 $0.00 $0.00 116,525 Leproust Emily M. Chief Executive Officer 10/28/2025 AA Direct COM 168,976 $0.00 $0.00 770,188 Green Paula SVP of Human Resources 10/28/2025 AA Direct COM 35,513 $0.00 $0.00 150,191 Cho Dennis See Remarks 10/28/2025 AA Direct COM 29,518 $0.00 $0.00 128,228 Finn Patrick John President and COO 10/28/2025 AA Direct COM 79,785 $0.00 $0.00 286,280 Werner Robert F. Chief Accounting Officer 10/28/2025 AA Direct COM 5,633 $0.00 $0.00 52,046 Blake Katryn Director 08/05/2025 AA Direct COM 14,353 $0.00 $0.00 14,353 Chan Nelson C Director 02/05/2025 AA Direct COM 4,472 $0.00 $0.00 28,156 Chess Robert Director 02/05/2025 AA Direct COM 4,472 $0.00 $0.00 21,113 Starovasnik Melissa A. Director 02/05/2025 AA Direct COM 4,472 $0.00 $0.00 21,627 Ragusa Robert P Director 02/05/2025 AA Direct COM 4,472 $0.00 $0.00 23,888 Johannessen Jan Director 02/05/2025 AA Direct COM 4,472 $0.00 $0.00 21,903
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Filer's Name
Relationship/
Trans.
Trans. Type
Ownership Type
Security Type
Shares
Price
Trans.
Total Shares Owned
Leproust Emily M. Chief Executive Officer 03/20/2026 DS Direct COM 1,742 $43.79 $76,275.91 858,887 Green Paula SVP of Human Resources 03/20/2026 DS Direct COM 297 $43.79 $13,004.56 124,104 Cho Dennis See Remarks 03/20/2026 DS Direct COM 354 $43.79 $15,500.39 137,903 Chess Robert Director 03/17/2026 DS Direct COM 10,000 $47.00 $470,000.00 21,084 Leproust Emily M. Chief Executive Officer 03/06/2026 DS Direct COM 2,423 $46.43 $112,490.20 860,629 Green Paula SVP of Human Resources 03/06/2026 DS Direct COM 935 $46.43 $43,408.31 124,401 Cho Dennis See Remarks 03/06/2026 DS Direct COM 425 $46.43 $19,731.05 138,257 Werner Robert F. Chief Accounting Officer 03/06/2026 DS Direct COM 246 $46.43 $11,420.80 54,799 Leproust Emily M. Chief Executive Officer 02/23/2026 DS Direct COM 7,205 $46.71 $336,544.11 863,052 Laponis Adam Chief Financial Officer 02/23/2026 DS Direct COM 2,085 $46.71 $97,389.93 128,291 Werner Robert F. Chief Accounting Officer 02/23/2026 DS Direct COM 1,693 $46.71 $79,079.69 55,045 Finn Patrick John President and COO 02/23/2026 DS Direct COM 4,294 $46.71 $200,571.88 284,129 Cho Dennis See Remarks 02/23/2026 DS Direct COM 844 $46.71 $39,423.07 138,682 Green Paula SVP of Human Resources 02/23/2026 DS Direct COM 1,465 $46.71 $68,429.86 125,336 Finn Patrick John President and COO 02/17/2026 DS Direct COM 3,541 $53.11 $188,062.51 287,788 Finn Patrick John President and COO 02/17/2026 DS Direct COM 26,952 $52.69 $1,419,993.07 291,329 Finn Patrick John President and COO 02/17/2026 DS Direct COM 16,616 $51.42 $854,444.57 318,281 Finn Patrick John President and COO 02/17/2026 DS Direct COM 21,858 $50.32 $1,099,916.42 334,897 Green Paula SVP of Human Resources 02/17/2026 DS Direct COM 39,404 $52.40 $2,064,769.60 126,041 Finn Patrick John President and COO 02/13/2026 DS Direct COM 1,750 $50.04 $87,571.75 306,250 Chess Robert Director 02/13/2026 DS Direct COM 2,184 $48.26 $105,402.02 21,084 Laponis Adam Chief Financial Officer 02/12/2026 DS Direct COM 7,000 $50.00 $350,000.00 130,031 Finn Patrick John President and COO 02/12/2026 DS Direct COM 3,500 $50.23 $175,787.50 306,788 Cho Dennis See Remarks 02/11/2026 DS Direct COM 5,000 $49.93 $249,650.00 138,581 Werner Robert F. Chief Accounting Officer 02/09/2026 DG Direct COM 2,000 $0.00 $0.00 56,738
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Filer's Name
Relationship/
Trans.
Trans. Type
Ownership Type
Security Type
Shares
Price
Trans.
Total Shares Owned
Chess Robert Director 03/17/2026 AM Direct COM 10,000 $11.89 $118,900.00 31,084 Finn Patrick John President and COO 02/17/2026 AM Direct COM 32,300 $26.66 $861,118.00 356,755 Finn Patrick John President and COO 02/17/2026 AM Direct COM 18,205 $23.33 $424,722.65 324,455 Finn Patrick John President and COO 02/13/2026 AM Direct COM 712 $26.66 $18,981.92 308,000 Finn Patrick John President and COO 02/13/2026 AM Direct COM 500 $23.33 $11,665.00 307,288 Finn Patrick John President and COO 02/12/2026 AM Direct COM 1,500 $26.66 $39,990.00 310,288 Finn Patrick John President and COO 02/12/2026 AM Direct COM 1,000 $23.33 $23,330.00 308,788 Finn Patrick John President and COO 01/13/2026 AM Direct COM 3,279 $8.82 $28,920.78 336,162 Chess Robert Director 12/05/2024 AM Direct COM 3,504 $8.82 $30,905.28 25,145 Chess Robert Director 11/11/2024 AM Direct COM 3,600 $8.82 $31,752.00 25,241
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Transaction Type Key A = Acquired, D = Disposed A = Grant, award or other acquisition pursuant to Rule 16b-3(d)
C = Conversion of derivative security |
D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) |
E = Expiration of short derivative position |
F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. |
G = Gift |
H = Expiration (or cancellation) of long derivative position with value received |
I = Discretionary transaction in accordance with Rule 16b-3(f) |
J = Other |
L = Small acquisition under Rule 16a-6 |
M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 |
O = Exercise of out-of-the-money derivative security |
P = Open market or private purchase |
S = Open market or private sale |
U = Disposition pursuant to a tender of shares in a change of control transaction |
W = Acquisition or disposition by will or the laws of descent and distribution |
X = Exercise of in-the-money or at-the-money derivative security |
Z = Deposit into or withdrawal from voting trust
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