TWST
TWIST BIOSCIENCE (TWST)
NASDAQ
$133.45-$15.68 (-10.52%)
Price as of Oct 22, 2026 7:58 PM EDT
  • $9.9B
    Market Cap
  • 380.14%
    1-Year Change
  • Biotechnology
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
BLACKROCK, INC.
8.86%
5.8M
+279,529 (+4.79%)
Jun 30, 2026
VANGUARD GROUP INC
8.77%
5.8M
+8,049 (+0.14%)
Dec 31, 2025
BLACKROCK FUNDING, INC. /DE
8.47%
5.6M
+101,842 (+1.83%)
Dec 31, 2024
BLACKROCK INC.
8.24%
5.4M
-351,152 (-6.47%)
Jun 30, 2024
ARTISAN PARTNERS LIMITED PARTNERSHIP
7.29%
4.8M
-1.6M (-32.61%)
Jun 30, 2026
FMR LLC
7.14%
4.7M
+2.8M (+59.81%)
Jun 30, 2026
ARK INVESTMENT MANAGEMENT LLC
6.91%
4.5M
-1.8M (-39.41%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions1.3B (73.53%)
  • Mutual Funds447.4M (26.26%)
  • Insiders3.5M (0.21%)
  • Other0 (0.00%)

Insider Transactions

  • 0.21% (3.5M)
    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)
  • $6.0B
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Laponis Adam
Chief Financial Officer
Sell
Oct 09, 2026
$384,822.66
2,462
$156.30
98,114
Leproust Emily M.
Chief Executive Officer
Sell
Oct 05, 2026
$368,805.74
1,840
$200.44
565,468
Leproust Emily M.
Chief Executive Officer
Sell
Oct 05, 2026
$96,803.94
481
$201.26
564,987
Leproust Emily M.
Chief Executive Officer
Sell
Oct 05, 2026
$205,763.10
1,017
$202.32
563,970
Leproust Emily M.
Chief Executive Officer
Sell
Oct 05, 2026
$87,958.31
432
$203.61
563,538
Leproust Emily M.
Chief Executive Officer
Sell
Oct 05, 2026
$59,391.88
290
$204.80
563,248
Leproust Emily M.
Chief Executive Officer
Sell
Oct 05, 2026
$61,115.83
297
$205.78
562,951
Leproust Emily M.
Chief Executive Officer
Sell
Oct 05, 2026
$30,199.36
146
$206.84
562,805
Leproust Emily M.
Chief Executive Officer
Sell
Oct 05, 2026
$9,335.50
45
$207.46
562,760
Laponis Adam
Chief Financial Officer
Sell
Oct 02, 2026
$1.5M
8,057
$188.88
100,576
Leproust Emily M.
Chief Executive Officer
Sell
Oct 02, 2026
$8.6M
45,736
$188.88
567,308
Green Paula
SVP of Human Resources
Sell
Oct 02, 2026
$1.9M
10,088
$188.88
106,632
Finn Patrick John
President and COO
Sell
Oct 02, 2026
$4.9M
25,714
$188.88
185,088
Cho Dennis
See Remarks
Sell
Oct 02, 2026
$1.8M
9,514
$188.88
63,789
WERNER ROBERT F.
Chief Accounting Officer
Sell
Oct 02, 2026
$279,926.09
1,482
$188.88
42,917
Leproust Emily M.
Chief Executive Officer
Sell
Oct 01, 2026
$131,000.00
655
$200.00
613,044
Leproust Emily M.
Chief Executive Officer
Sell
Sep 24, 2026
$435,449.78
2,485
$175.23
616,417
Leproust Emily M.
Chief Executive Officer
Sell
Sep 24, 2026
$166,690.16
945
$176.39
615,472
Leproust Emily M.
Chief Executive Officer
Sell
Sep 24, 2026
$29,055.86
164
$177.17
615,308
Leproust Emily M.
Chief Executive Officer
Sell
Sep 24, 2026
$58,960.54
330
$178.67
614,978
Leproust Emily M.
Chief Executive Officer
Sell
Sep 24, 2026
$25,730.43
143
$179.93
614,835
Leproust Emily M.
Chief Executive Officer
Sell
Sep 24, 2026
$92,901.42
515
$180.39
614,320
Leproust Emily M.
Chief Executive Officer
Sell
Sep 24, 2026
$3,810.49
21
$181.45
614,299
Leproust Emily M.
Chief Executive Officer
Sell
Sep 24, 2026
$2,920.00
16
$182.50
614,283
Leproust Emily M.
Chief Executive Officer
Sell
Sep 24, 2026
$92,065.81
501
$183.76
613,782
Leproust Emily M.
Chief Executive Officer
Sell
Sep 24, 2026
$15,322.05
83
$184.60
613,699
Leproust Emily M.
Chief Executive Officer
Exempt
Sep 17, 2026
$0.00
75,439
$0.00
0
Leproust Emily M.
Chief Executive Officer
Exempt
Sep 17, 2026
$0.00
133,269
$0.00
0
Leproust Emily M.
Chief Executive Officer
Exempt
Sep 17, 2026
$3.6M
133,269
$26.66
901,696
Leproust Emily M.
Chief Executive Officer
Exempt
Sep 17, 2026
$665,371.98
75,439
$8.82
977,135