TWST: Twist Bioscience Corporation insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 26 sales totaling $21.36M in the last 180 days.
Insider sales
| Trade date | Insider | Role | Value | 10b5-1 plan |
|---|---|---|---|---|
| 2026-10-09 | Laponis Adam | CFO | $385K | |
| 2026-10-05 | Leproust Emily M. | CEO | $369K | yes |
| 2026-10-05 | Leproust Emily M. | CEO | $97K | yes |
| 2026-10-05 | Leproust Emily M. | CEO | $206K | yes |
| 2026-10-05 | Leproust Emily M. | CEO | $88K | yes |
| 2026-10-05 | Leproust Emily M. | CEO | $59K | yes |
| 2026-10-05 | Leproust Emily M. | CEO | $61K | yes |
| 2026-10-05 | Leproust Emily M. | CEO | $30K | yes |
| 2026-10-05 | Leproust Emily M. | CEO | $9K | yes |
| 2026-10-02 | Leproust Emily M. | CEO | $8.64M | yes |
| 2026-10-02 | Werner Robert F. | Officer | $280K | |
| 2026-10-02 | Laponis Adam | CFO | $1.52M | |
| 2026-10-02 | Green Paula | Officer | $1.91M | |
| 2026-10-02 | Finn Patrick John | President | $4.86M | |
| 2026-10-02 | Cho Dennis | Officer | $1.80M | |
| 2026-10-01 | Leproust Emily M. | CEO | $131K | yes |
| 2026-09-24 | Leproust Emily M. | CEO | $435K | yes |
| 2026-09-24 | Leproust Emily M. | CEO | $167K | yes |
| 2026-09-24 | Leproust Emily M. | CEO | $29K | yes |
| 2026-09-24 | Leproust Emily M. | CEO | $59K | yes |
| 2026-09-24 | Leproust Emily M. | CEO | $26K | yes |
| 2026-09-24 | Leproust Emily M. | CEO | $93K | yes |
| 2026-09-24 | Leproust Emily M. | CEO | $4K | yes |
| 2026-09-24 | Leproust Emily M. | CEO | $3K | yes |
| 2026-09-24 | Leproust Emily M. | CEO | $92K | yes |
| 2026-09-24 | Leproust Emily M. | CEO | $15K | yes |
Activist and 5% holders
| Filed | What | Holder | Stake | Change | Filing |
|---|---|---|---|---|---|
| 2026-09-08 | 13G stake cut | ARK Investment Management LLC | 5.11% | -2.20 pts | SEC |
| 2026-09-08 | 13G stake raised | FMR LLC | 13.20% | +5.60 pts | SEC |
| 2026-08-14 | 13G amendment | ARK Investment Management LLC | 7.31% | SEC | |
| 2026-08-14 | New 13G stake | T. Rowe Price Associates, Inc. | 5.80% | SEC | |
| 2026-08-14 | Fell below 5% | EdgePoint Investment Group Inc. | 4.21% | SEC | |
| 2026-08-13 | 13G amendment | Artisan Partners Asset Management Inc. | 7.70% | SEC | |
| 2026-08-11 | Fell below 5% | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 3.50% | SEC | |
| 2026-08-06 | New 13G stake | FMR LLC | 7.60% | SEC |
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