Twist Bioscience
Writes synthetic DNA on silicon for sequencing workflows, biological research, and antibody discovery.
$141.01
After-hours close−0.28 (−0.20%)
At close$141.29(−7.72%)
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Breakdown13F · Form 4
Institutions 135.93%Insiders 2.40%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 62.27M · Float 59.69M · 95.9% free float
Institutions13F, as of Jun 30, 2026
346 holders · 84.64M shares · 93 new positions · 192 increased · 101 reduced · 36 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 5.83M | 9.37% | +279.5K | Aug 7, 2026 |
| Artisan Partners Limited Partnership | 4.80M | 7.71% | −1.57M | Aug 13, 2026 |
| FMR LLC | 4.70M | 7.55% | +2.81M | Aug 13, 2026 |
| Ark Investment Management LLC | 4.55M | 7.31% | −1.79M | Aug 14, 2026 |
| Price T Rowe Associates Inc /MD/ | 3.63M | 5.84% | +3.56M | Aug 14, 2026 |
| State Street Corp | 3.23M | 5.19% | −438.2K | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 2.82M | 4.54% | +175.9K | Aug 13, 2026 |
| Vanguard Capital Management LLC | 2.70M | 4.33% | +60.2K | Aug 13, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| ARK Investment Management LLC | 10.35% | 6.34M | 13G | Apr 30, 2026 ↗ |
| Artisan Partners Asset Management Inc. | 10.10% | 6.22M | 13G | Mar 6, 2026 ↗ |
| EdgePoint Investment Group Inc. | 8.80% | 5.38M | 13G | Feb 17, 2026 ↗ |
| William Blair Investment Management, LLC | 8.60% | 5.27M | 13G | May 7, 2026 ↗ |
| BlackRock, Inc. | 8.30% | 4.93M | 13G | Apr 17, 2025 ↗ |
| T. Rowe Price Associates, Inc. | 5.80% | 3.63M | 13G | Aug 14, 2026 ↗ |
| State Street Corporation | 5.10% | 3.09M | 13G | Nov 10, 2025 ↗ |
| Vanguard Capital Management | 5.05% | 3.10M | 13G | Apr 30, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Emily M. Leproust | director, officer: Chief Executive Officer | 770.7K | 1.24% | Aug 27, 2026 |
| Patrick John Finn | officer: President and COO | 210.8K | 0.34% | Aug 25, 2026 |
| Paula Green | officer: SVP of Human Resources | 117.9K | 0.19% | Aug 25, 2026 |
| Adam Laponis | officer: Chief Financial Officer | 108.6K | 0.17% | Aug 25, 2026 |
| Dennis Cho | officer: See Remarks | 74.1K | 0.12% | Aug 25, 2026 |
| Robert F. Werner | officer: Chief Accounting Officer | 44.6K | 0.07% | Aug 25, 2026 |
| Nelson Chan | director | 33.3K | 0.05% | Feb 9, 2026 |
| Robert P. Ragusa | director | 29.0K | 0.05% | Feb 9, 2026 |
| Keith Crandell | director | 27.6K | 0.04% | Feb 9, 2026 |
| Melissa A. Starovasnik | director | 22.2K | 0.04% | Jun 1, 2026 |
3 ten-percent owners hold 4.26M shares by Form 4, outside the officers-and-directors figure above · 9 people have not refiled in the last 18 months (1.26M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 25, 2026 | Emily M. Leproustdirector, officer: Chief Executive Officer | Sale · 5 lots | 41,570 | $151.98 | 770,729 |
| Aug 24, 2026 | Robert F. Wernerofficer: Chief Accounting Officer | Sale | 854 | $140.77 | 44,637 |
| Aug 21, 2026 | Robert F. Wernerofficer: Chief Accounting Officer | Sale | 669 | $139.07 | 45,491 |
| Aug 21, 2026 | Emily M. Leproustdirector, officer: Chief Executive Officer | Sale | 6,639 | $139.07 | 812,299 |
| Aug 21, 2026 | Adam Laponisofficer: Chief Financial Officer | Sale | 1,965 | $139.07 | 108,633 |
| Aug 21, 2026 | Paula Greenofficer: SVP of Human Resources | Sale | 1,360 | $139.07 | 117,921 |
| Aug 21, 2026 | Patrick John Finnofficer: President and COO | Sale | 4,046 | $139.07 | 210,802 |
| Aug 21, 2026 | Dennis Choofficer: See Remarks | Sale | 1,598 | $139.07 | 74,063 |
| Aug 19, 2026 | Dennis Choofficer: See Remarks | Sale | 14,205 | $129.75 | 75,661 |
| Aug 18, 2026 | Patrick John Finnofficer: President and COO | Sale · 7 lots | 78,355 | $117.64 | 214,678 |
CongressHouse and Senate disclosures
Not reported.