TWST
TWIST BIOSCIENCE (TWST)
NASDAQ
$86.00+$1.00 (+1.18%)
Price as of Jun 23, 2026 7:12 PM EDT
  • $5.3B
    Market Cap
  • 141.07%
    1-Year Change
  • Diagnostics & Research
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
ARTISAN PARTNERS LIMITED PARTNERSHIP
10.23%
6.4M
+537,572 (+8.44%)
Mar 31, 2026
ARK INVESTMENT MANAGEMENT LLC
10.19%
6.3M
-1.2M (-19.18%)
Mar 31, 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.
8.92%
5.6M
-340,610 (-6.13%)
Mar 31, 2026
BLACKROCK INC.
8.71%
5.4M
-351,152 (-6.47%)
Jun 30, 2024
EDGEPOINT INVESTMENT GROUP INC.
8.64%
5.4M
+4,530 (+0.08%)
Mar 31, 2026

Current Ownership Distribution

  • Institutions1.2B (75.05%)
  • Mutual Funds386.4M (24.69%)
  • Insiders4.0M (0.26%)
  • Other0 (0.00%)

Insider Transactions

  • 0.26% (4.0M)
    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)
  • $907.7M
    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
Exempt
Jun 15, 2026
$0.00
26,137
$0.00
0
Green Paula
SVP of Human Resources
Exempt
Jun 15, 2026
$609,776.21
26,137
$23.33
146,842
Green Paula
SVP of Human Resources
Sell
Jun 15, 2026
$2.0M
24,109
$81.62
122,733
Green Paula
SVP of Human Resources
Sell
Jun 15, 2026
$166,631.63
2,028
$82.17
120,705
Cho Dennis
See Remarks
Sell
Jun 08, 2026
$28,077.37
402
$69.84
119,692
WERNER ROBERT F.
Chief Accounting Officer
Sell
Jun 08, 2026
$16,203.85
232
$69.84
47,954
Leproust Emily M.
Chief Executive Officer
Sell
Jun 08, 2026
$158,197.11
2,265
$69.84
844,607
WERNER ROBERT F.
Chief Accounting Officer
Sell
Jun 08, 2026
$77,841.89
1,127
$69.07
46,827
Green Paula
SVP of Human Resources
Sell
Jun 08, 2026
$61,742.27
884
$69.84
120,705
WERNER ROBERT F.
Chief Accounting Officer
Gift
Jun 08, 2026
$0.00
500
$0.00
46,327
Starovasnik Melissa A.
Sell
Apr 01, 2026
$51,000.00
1,000
$51.00
25,722
Green Paula
SVP of Human Resources
Sell
Mar 20, 2026
$13,004.56
297
$43.79
124,104
Cho Dennis
See Remarks
Sell
Mar 20, 2026
$15,500.39
354
$43.79
137,903
Leproust Emily M.
Chief Executive Officer
Sell
Mar 20, 2026
$76,275.91
1,742
$43.79
858,887
CHESS ROBERT
Exempt
Mar 17, 2026
$0.00
10,000
$0.00
18,417
CHESS ROBERT
Exempt
Mar 17, 2026
$118,900.00
10,000
$11.89
31,084
CHESS ROBERT
Sell
Mar 17, 2026
$470,000.00
10,000
$47.00
21,084
Leproust Emily M.
Chief Executive Officer
Sell
Mar 06, 2026
$112,490.20
2,423
$46.43
860,629
Cho Dennis
See Remarks
Sell
Mar 06, 2026
$19,731.05
425
$46.43
138,257
Green Paula
SVP of Human Resources
Sell
Mar 06, 2026
$43,408.31
935
$46.43
124,401
WERNER ROBERT F.
Chief Accounting Officer
Sell
Mar 06, 2026
$11,420.80
246
$46.43
54,799
Finn Patrick John
President and COO
Sell
Feb 23, 2026
$200,571.88
4,294
$46.71
284,129
WERNER ROBERT F.
Chief Accounting Officer
Sell
Feb 23, 2026
$79,079.69
1,693
$46.71
55,045
Laponis Adam
Chief Financial Officer
Sell
Feb 23, 2026
$97,389.93
2,085
$46.71
128,291
Green Paula
SVP of Human Resources
Sell
Feb 23, 2026
$68,429.86
1,465
$46.71
125,336
Cho Dennis
See Remarks
Sell
Feb 23, 2026
$39,423.07
844
$46.71
138,682
Leproust Emily M.
Chief Executive Officer
Sell
Feb 23, 2026
$336,544.11
7,205
$46.71
863,052
Green Paula
SVP of Human Resources
Sell
Feb 17, 2026
$2.1M
39,404
$52.40
126,041
Finn Patrick John
President and COO
Exempt
Feb 17, 2026
$0.00
32,300
$0.00
0
Finn Patrick John
President and COO
Exempt
Feb 17, 2026
$0.00
18,205
$0.00
0