SEC Form 4Coverage since May 21, 2026
$TWST insider trading
Over the last 12 months, Twist Bioscience insiders reported no purchases and 34 sales totaling $15.4M across SEC Form 4 filings. 35% of the activity was filed under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- — 0 events
- Sold · 12m
- $15.4M 34 events
- Events · 12m
- 34 Form 4 filings, grouped
- Insiders · 12m
- 7 distinct reporters
- 10b5-1 share
- 35% pre-arranged plans
Side
Price · $TWST · 12Mvia TradingView
Top insiders · 12m
Leproust Emily M.Chief Executive Officer10× · $7.2M
Cho DennisSee Remarks7× · $4.1M
Green PaulaSVP of Human Resources5× · $2.4M
WERNER ROBERT F.Chief Accounting Officer4× · $195K
Laponis AdamChief Financial Officer3× · $614K
All insider trades
34 events
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 5, 2026 | Cho DennisSee Remarks · O | ▼ Sale | 14,205 | $109.75 | $1.6M | -13.6% | plan |
| Aug 3, 2026 | Finn Patrick JohnPresident and COO · O | ▼ Sale | 2,888 | $85.32 | $246K | -1.1% | — |
| Aug 3, 2026 | Green PaulaSVP of Human Resources · O | ▼ Sale | 1,133 | $85.32 | $97K | -0.9% | — |
| Aug 3, 2026 | Leproust Emily M.Chief Executive Officer · O·D | ▼ Sale | 5,101 | $85.32 | $435K | -0.6% | — |
| Aug 3, 2026 | WERNER ROBERT F.Chief Accounting Officer · O | ▼ Sale | 167 | $85.32 | $14K | -0.4% | — |
| Aug 3, 2026 | Cho DennisSee Remarks · O | ▼ Sale | 1,070 | $85.32 | $91K | -1% | — |
| Jul 23, 2026 | Finn Patrick JohnPresident and COO · O | ▼ Sale | 2,238 | $93.89 | $210K | -0.8% | — |
| Jul 9, 2026 | Laponis AdamChief Financial Officer · O | ▼ Sale | 2,399 | $94.33 | $226K | -2.1% | — |
| Jun 25, 2026 | Leproust Emily M.Chief Executive Officer · O·D | ▼ Sale | 18,880 | $95 | $1.8M | -2.2% | plan |
| Jun 24, 2026 | Cho DennisSee Remarks · O | ▼ Sale | 14,205 | $89.75 | $1.3M | -11.9% | plan |
| Jun 22, 2026 | Green PaulaSVP of Human Resources · O | ▼ Sale | 291 | $87.32 | $25K | -0.2% | — |
| Jun 22, 2026 | Cho DennisSee Remarks · O | ▼ Sale | 346 | $87.32 | $30K | -0.3% | — |
| Jun 22, 2026 | Leproust Emily M.Chief Executive Officer · O·D | ▼ Sale | 1,688 | $87.32 | $147K | -0.2% | — |
| Jun 15, 2026 | Green PaulaSVP of Human Resources · O | ▼ Sale | 26,137 | $81.67 | $2.1M | -17.8% | 2 tranches |
| Jun 8, 2026 | Cho DennisSee Remarks · O | ▼ Sale | 402 | $69.84 | $28K | -0.3% | — |
| Jun 8, 2026 | Green PaulaSVP of Human Resources · O | ▼ Sale | 884 | $69.84 | $62K | -0.7% | — |
| Jun 8, 2026 | Leproust Emily M.Chief Executive Officer · O·D | ▼ Sale | 2,265 | $69.84 | $158K | -0.3% | — |
| Jun 8, 2026 | WERNER ROBERT F.Chief Accounting Officer · O | ▼ Sale | 1,359 | $69.2 | $94K | -2.8% | 2 tranches |
| May 29, 2026 | Cho DennisSee Remarks · O | ▼ Sale | 14,205 | $69.75 | $991K | -10.6% | plan |
| May 29, 2026 | Laponis AdamChief Financial Officer · O | ▼ Sale | 4,000 | $70 | $280K | -3.4% | plan |
| May 28, 2026 | Leproust Emily M.Chief Executive Officer · O·D | ▼ Sale | 6,465 | $68.61 | $444K | -0.8% | plan |
| May 28, 2026 | Leproust Emily M.Chief Executive Officer · O·D | ▼ Sale | 7,623 | $67.95 | $518K | -0.9% | plan |
| May 28, 2026 | Leproust Emily M.Chief Executive Officer · O·D | ▼ Sale | 900 | $66.85 | $60K | -0.1% | plan |
| May 28, 2026 | Leproust Emily M.Chief Executive Officer · O·D | ▼ Sale | 1,482 | $65.33 | $97K | -0.2% | plan |
| May 28, 2026 | Starovasnik Melissa A.D | ▼ Sale | 2,500 | $68 | $170K | -10.1% | plan |
| May 27, 2026 | Leproust Emily M.Chief Executive Officer · O·D | ▼ Sale | 49,299 | $65.19 | $3.2M | -5.5% | plan · 3 tranches |
| May 26, 2026 | WERNER ROBERT F.Chief Accounting Officer · O | ▼ Sale | 800 | $62.48 | $50K | -1.6% | — |
| May 26, 2026 | Starovasnik Melissa A.D | ▼ Sale | 500 | $61.04 | $31K | -2% | plan |
| May 21, 2026 | Green PaulaSVP of Human Resources · O | ▼ Sale | 1,399 | $53.26 | $75K | -1.1% | — |
| May 21, 2026 | Finn Patrick JohnPresident and COO · O | ▼ Sale | 4,160 | $53.26 | $222K | -1.5% | — |
| May 21, 2026 | Cho DennisSee Remarks · O | ▼ Sale | 1,642 | $53.26 | $87K | -1.2% | — |
| May 21, 2026 | WERNER ROBERT F.Chief Accounting Officer · O | ▼ Sale | 688 | $53.26 | $37K | -1.4% | — |
| May 21, 2026 | Leproust Emily M.Chief Executive Officer · O·D | ▼ Sale | 6,888 | $53.26 | $367K | -0.8% | — |
| May 21, 2026 | Laponis AdamChief Financial Officer · O | ▼ Sale | 2,019 | $53.26 | $108K | -1.7% | — |
About Form 4
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $TWST feed.