Adam Laponis insider trades: Twist Bioscience (TWST) stock sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Adam reports to the SEC
Open-market buys and sales
29 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Oct 9, 2026 | TWST | ↓ Sell | 2,462 | $156.30 | $385K | Direct | Oct 13, 2026 (4d) |
| Oct 2, 2026 | TWST | ↓ Sell | 8,057 | $188.88 | $1.5M | Direct | Oct 5, 2026 (3d) |
| Aug 21, 2026 | TWST | ↓ Sell | 1,965 | $139.07 | $273K | Direct | Aug 25, 2026 (4d) |
| May 29, 2026 | TWST | ↓ Sell10b5-1 | 4,000 | $70.00 | $280K | Direct | Jun 2, 2026 (4d) |
| May 21, 2026 | TWST | ↓ Sell | 2,019 | $53.26 | $108K | Direct | May 26, 2026 (5d) |
| Apr 14, 2026 | TWST | ↓ Sell10b5-1 | 3,000 | $55.00 | $165K | Direct | Apr 16, 2026 (2d) |
| Apr 9, 2026 | TWST | ↓ Sell | 2,597 | $49.89 | $130K | Direct | Apr 13, 2026 (4d) |
| Feb 23, 2026 | TWST | ↓ Sell | 2,085 | $46.71 | $97K | Direct | Feb 25, 2026 (2d) |
| Jan 13, 2026 | TWST | ↓ Sell10b5-1 | 3,000 | $40.00 | $120K | Direct | Jan 15, 2026 (2d) |
| Jan 9, 2026 | TWST | ↓ Sell | 2,738 | $35.26 | $97K | Direct | Jan 13, 2026 (4d) |
| Nov 21, 2025 | TWST | ↓ Sell | 887 | $26.50 | $24K | Direct | Nov 25, 2025 (4d) |
| Oct 30, 2025 | TWST | ↓ Sell | 5,517 | $31.44 | $173K | Direct | Nov 3, 2025 (4d) |
| Oct 9, 2025 | TWST | ↓ Sell10b5-1 | 5,517 | $31.96 | $176K | Direct | Oct 10, 2025 (1d) |
| Oct 6, 2025 | TWST | ↓ Sell | 5,875 | $32.19 | $189K | Direct | Oct 8, 2025 (2d) |
| Aug 21, 2025 | TWST | ↓ Sell | 918 | $25.96 | $24K | Direct | Aug 25, 2025 (4d) |
| Jul 9, 2025 | TWST | ↓ Sell | 2,449 | $38.15 | $93K | Direct | Jul 11, 2025 (2d) |
| May 21, 2025 | TWST | ↓ Sell | 936 | $29.75 | $28K | Direct | May 23, 2025 (2d) |
| Apr 9, 2025 | TWST | ↓ Sell | 2,542 | $34.97 | $89K | Direct | Apr 11, 2025 (2d) |
| Feb 21, 2025 | TWST | ↓ Sell | 918 | $44.18 | $41K | Direct | Feb 25, 2025 (4d) |
| Jan 10, 2025 | TWST | ↓ Sell | 5,886 | $43.26 | $255K | Direct | Jan 14, 2025 (4d) |
| Nov 6, 2024 | TWST | ↓ Sell | 4,160 | $44.60 | $186K | Direct | Nov 8, 2024 (2d) |
| Oct 9, 2024 | TWST | ↓ Sell | 856 | $41.81 | $36K | Direct | Oct 11, 2024 (2d) |
| Jul 9, 2024 | TWST | ↓ Sell | 842 | $48.91 | $41K | Direct | Jul 11, 2024 (2d) |
| Apr 9, 2024 | TWST | ↓ Sell | 556 | $33.16 | $18K | Direct | Apr 11, 2024 (2d) |
| Aug 17, 2023 | EAR | ↓ Sell | 19 | $3.24 | $61 | Direct | Aug 17, 2023 (0d) |
| May 17, 2023 | EAR | ↓ Sell | 19 | $4.69 | $89 | Direct | May 18, 2023 (1d) |
| Feb 17, 2023 | EAR | ↓ Sell | 21 | $7.37 | $155 | Direct | Feb 22, 2023 (5d) |
| Nov 17, 2022 | EAR | ↓ Sell | 687 | $0.52 | $357 | Direct | Nov 21, 2022 (4d) |
| Jun 29, 2021 | EAR | ↓ Sell | 10,000 | $38.43 | $384K | Direct | Jul 1, 2021 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other TWST insiders
Open-market trades in the last 12 months
About Adam Laponis's insider trades
Adam Laponis is Chief Financial Officer at Twist Bioscience (TWST). Since Jun 29, 2021, Adam has reported no open-market purchases and 29 sales worth $4.9M on SEC Form 4. In the last 12 months: 11 sales ($3.2M).
4 sales (15% of the value sold) were made under a Rule 10b5-1 trading plan, which is set up months in advance and runs on a schedule, so they say little about how the insider sees the stock today.
Their filings also include grants and awards (8 filings), shares returned to the company (4 filings), shares withheld for taxes (3 filings), option exercises (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every TWST insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.