TWST
TWIST BIOSCIENCE (TWST)
NASDAQ
$127.25+$0.03 (+0.02%)
Price as of Sep 11, 2026 7:58 PM EDT
  • $8.4B
    Market Cap
  • 402.65%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
9.37%
5.8M
+279,529 (+4.79%)
Jun 30, 2026
VANGUARD GROUP INC
9.28%
5.8M
+8,049 (+0.14%)
Dec 31, 2025
BLACKROCK FUNDING, INC. /DE
8.96%
5.6M
+101,842 (+1.83%)
Dec 31, 2024
BLACKROCK INC.
8.71%
5.4M
-351,152 (-6.47%)
Jun 30, 2024
ARTISAN PARTNERS LIMITED PARTNERSHIP
7.71%
4.8M
-1.6M (-32.61%)
Jun 30, 2026
FMR LLC
7.55%
4.7M
+2.8M (+59.81%)
Jun 30, 2026
ARK INVESTMENT MANAGEMENT LLC
7.31%
4.5M
-1.8M (-39.41%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions1.3B (74.14%)
  • Mutual Funds433.1M (25.63%)
  • Insiders3.8M (0.23%)
  • Other0 (0.00%)

Insider Transactions

  • 0.23% (3.8M)
    Current InsiderOwnership (%, shares)
  • 0
    Number of InsiderBuying (last 12 months)
  • $0.00
    Amount of InsiderBuying (last 12 months)
  • 9
    Number of InsiderSelling (last 12 months)
  • $2.2B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Green Paula
SVP of Human Resources
Sell
Sep 08, 2026
$111,219.97
907
$122.62
117,014
Cho Dennis
See Remarks
Sell
Sep 08, 2026
$50,521.09
412
$122.62
73,651
WERNER ROBERT F.
Chief Accounting Officer
Sell
Sep 08, 2026
$29,184.51
238
$122.62
44,399
Leproust Emily M.
Chief Executive Officer
Sell
Sep 08, 2026
$282,280.45
2,302
$122.62
768,427
Leproust Emily M.
Chief Executive Officer
Sell
Aug 25, 2026
$1.9M
12,648
$150.56
799,651
Leproust Emily M.
Chief Executive Officer
Sell
Aug 25, 2026
$1.9M
12,236
$151.35
787,415
Leproust Emily M.
Chief Executive Officer
Sell
Aug 25, 2026
$979,433.00
6,412
$152.75
781,003
Leproust Emily M.
Chief Executive Officer
Sell
Aug 25, 2026
$1.4M
9,181
$153.93
771,822
Leproust Emily M.
Chief Executive Officer
Sell
Aug 25, 2026
$168,809.48
1,093
$154.45
770,729
WERNER ROBERT F.
Chief Accounting Officer
Sell
Aug 24, 2026
$120,220.14
854
$140.77
44,637
Leproust Emily M.
Chief Executive Officer
Sell
Aug 21, 2026
$923,259.17
6,639
$139.07
812,299
Laponis Adam
Chief Financial Officer
Sell
Aug 21, 2026
$273,264.69
1,965
$139.07
108,633
Green Paula
SVP of Human Resources
Sell
Aug 21, 2026
$189,129.76
1,360
$139.07
117,921
Finn Patrick John
President and COO
Sell
Aug 21, 2026
$562,661.04
4,046
$139.07
210,802
Cho Dennis
See Remarks
Sell
Aug 21, 2026
$222,227.47
1,598
$139.07
74,063
WERNER ROBERT F.
Chief Accounting Officer
Sell
Aug 21, 2026
$93,035.15
669
$139.07
45,491
Cho Dennis
See Remarks
Sell
Aug 19, 2026
$1.8M
14,205
$129.75
75,661
Finn Patrick John
President and COO
Exempt
Aug 18, 2026
$0.00
23,355
$0.00
0
Finn Patrick John
President and COO
Exempt
Aug 18, 2026
$1.6M
23,355
$67.85
293,033
Finn Patrick John
President and COO
Sell
Aug 18, 2026
$3.9M
33,354
$115.90
259,679
Finn Patrick John
President and COO
Sell
Aug 18, 2026
$1.2M
10,420
$116.82
249,259
Finn Patrick John
President and COO
Sell
Aug 18, 2026
$1.0M
8,868
$117.70
240,391
Finn Patrick John
President and COO
Sell
Aug 18, 2026
$535,680.00
4,500
$119.04
235,891
Finn Patrick John
President and COO
Sell
Aug 18, 2026
$1.5M
12,917
$119.86
222,974
Finn Patrick John
President and COO
Sell
Aug 18, 2026
$761,860.07
6,296
$121.01
216,678
Finn Patrick John
President and COO
Sell
Aug 18, 2026
$245,162.00
2,000
$122.58
214,678
Leproust Emily M.
Chief Executive Officer
Exempt
Aug 12, 2026
$0.00
19,952
$0.00
133,269
Leproust Emily M.
Chief Executive Officer
Exempt
Aug 12, 2026
$531,920.32
19,952
$26.66
838,890
Leproust Emily M.
Chief Executive Officer
Sell
Aug 12, 2026
$2.5M
19,952
$125.08
818,938
CHESS ROBERT
Exempt
Aug 07, 2026
$0.00
18,417
$0.00
0