Stocks › TWST
Twist Bioscience Corp
TWST·Nasdaq·
United States·USD
United States·USD$166.97
-38.03 (-18.55%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
TWST
Twist Bioscience Corp · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
TWSTS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of TWST by members of U.S. Congress · 2 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Dwight EvansHouse · D · PA |
TWSTTwist Bioscience Corp · Stock |
Sale $1,001 - $15,000 |
Apr 25, 2022 | Mar 30, 2022 | Filing ↗ |
| Dwight EvansHouse · D · PA |
TWSTTwist Bioscience Corp · Stock |
Purchase $1,001 - $15,000 |
Apr 23, 2020 | Mar 2, 2020 | Filing ↗ |
Whale Activity
Position changes in TWST reported for 2026-06-30 by 18 tracked institutional filers
- Increased5
- New1
- Held0
- Decreased2
- Closed1
- No prior filing9
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 5.8M | $600.2M | increased |
| Artisan Partners Limited Partnership | 4.8M | $494.0M | — |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2.8M | $290.6M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 2.7M | $277.7M | increased |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 2.2M | $223.7M | — |
| D. E. Shaw & Co., Inc. | 1.2M | $122.0M | increased |
| Amova Asset Management Americas, Inc. | 999.7K | $102.8M | — |
| CITADEL ADVISORS LLC | 862.0K | $88.7M | decreased |
| Stephens Investment Management Group LLC | 767.4K | $78.9M | — |
| MILLENNIUM MANAGEMENT LLC | 347.1K | $35.7M | decreased |
| Freshford Capital Management, LLC | 177.4K | $18.3M | — |
| Atika Capital Management LLC | 108.0K | $11.1M | — |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by TWST insiders, by quarter · Form 4
Recent Insider Transactions
1,819 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Leproust Emily M.Chief Executive Officer · Director | Sale | −45.7K | $188.88 | $8.6M | Oct 2, 2026 | Form 4 ↗ |
| WERNER ROBERT F.Chief Accounting Officer | Sale | −1,482 | $188.88 | $280K | Oct 2, 2026 | Form 4 ↗ |
| Laponis AdamChief Financial Officer | Sale | −8,057 | $188.88 | $1.5M | Oct 2, 2026 | Form 4 ↗ |
| Green PaulaSVP of Human Resources | Sale | −10.1K | $188.88 | $1.9M | Oct 2, 2026 | Form 4 ↗ |
| Finn Patrick JohnPresident and COO | Sale | −25.7K | $188.88 | $4.9M | Oct 2, 2026 | Form 4 ↗ |
| Cho DennisSee Remarks | Sale | −9,514 | $188.88 | $1.8M | Oct 2, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −655 | $200.00 | $131K | Oct 1, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −945 | $176.39 | $167K | Sep 24, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −83 | $184.60 | $15K | Sep 24, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −515 | $180.39 | $93K | Sep 24, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −501 | $183.76 | $92K | Sep 24, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −330 | $178.67 | $59K | Sep 24, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −2,485 | $175.23 | $435K | Sep 24, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −21 | $181.45 | $4K | Sep 24, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −164 | $177.17 | $29K | Sep 24, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −16 | $182.50 | $3K | Sep 24, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −143 | $179.93 | $26K | Sep 24, 2026 | Form 4 ↗ |
| Cho DennisSee Remarks | Sale | −348 | $165.49 | $58K | Sep 21, 2026 | Form 4 ↗ |
| Green PaulaSVP of Human Resources | Sale | −294 | $165.49 | $49K | Sep 21, 2026 | Form 4 ↗ |
| Leproust Emily M.Chief Executive Officer · Director | Sale | −1,687 | $165.49 | $279K | Sep 21, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding TWST · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 1.9M | $192.8M | 0.01% | Jun 30, 2026 |
| ARK Innovation ETF ARK ETF Trust | 2.0M | $184.1M | 3.31% | Jul 31, 2026 |
| iShares Russell 2000 ETF iShares Trust | 1.6M | $164.0M | 0.20% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P(R) Biotech ETF SPDR SERIES TRUST | 1.5M | $151.1M | 1.41% | Jun 30, 2026 |
| VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS | 1.4M | $139.6M | 0.07% | Jun 30, 2026 |
| ARK Genomic Revolution ETF ARK ETF Trust | 1.3M | $120.4M | 7.73% | Jul 31, 2026 |
| T. Rowe Price New Horizons Fund, Inc. | 959.3K | $98.7M | 0.67% | Jun 30, 2026 |
| Artisan Mid Cap Fund Artisan Partners Funds Inc. | 893.2K | $91.9M | 2.88% | Jun 30, 2026 |
| Bridge Builder Small/Mid Cap Growth Fund Bridge Builder Trust | 866.9K | $89.2M | 0.80% | Jun 30, 2026 |
| VANGUARD SMALL-CAP GROWTH INDEX FUND VANGUARD INDEX FUNDS | 780.8K | $80.3M | 0.17% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list TWST's shares (CUSIP 90184D100), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- Catherine D. WoodSCHEDULE 13G/A · passive (13G) · 3.4M shares5.1%
Sep 8, 2026 · ↗ - ARK Investment Management LLCSCHEDULE 13G/A · passive (13G) · 3.4M shares5.1%
Sep 8, 2026 · ↗ - Abigail P. JohnsonSCHEDULE 13G/A · passive (13G) · 8.8M shares13.2%
Sep 8, 2026 · ↗ - FMR LLCSCHEDULE 13G/A · passive (13G) · 8.8M shares13.2%
Sep 8, 2026 · ↗ - EdgePoint Investment Group Inc.SCHEDULE 13G/A · passive (13G) · 2.5M shares4.2%
Aug 14, 2026 · ↗ - Catherine D. WoodSCHEDULE 13G/A · passive (13G) · 4.5M shares7.3%
Aug 14, 2026 · ↗ - ARK Investment Management LLCSCHEDULE 13G/A · passive (13G) · 4.5M shares7.3%
Aug 14, 2026 · ↗ - T. Rowe Price Associates, Inc.SCHEDULE 13G · passive (13G) · 3.6M shares5.8%
Aug 14, 2026 · ↗ - Artisan Partners Limited PartnershipSCHEDULE 13G/A · passive (13G) · 4.8M shares7.7%
Aug 13, 2026 · ↗ - Artisan Investments GP LLCSCHEDULE 13G/A · passive (13G) · 4.8M shares7.7%
Aug 13, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming twist bioscience as client
- IPOLICY SOLUTIONSTWIST BIOSCIENCE CORPORATION · 2026 Q2 · SCI, TRD$83K
Filing ↗ - IPOLICY SOLUTIONSTWIST BIOSCIENCE CORPORATION · 2026 Q1 · SCI, TRD$83K
Filing ↗ - IPOLICY SOLUTIONSTWIST BIOSCIENCE CORPORATION · 2025 Q4 · SCI, DEF, TRD$75K
Filing ↗ - IPOLICY SOLUTIONSTWIST BIOSCIENCE CORPORATION · 2025 Q3 · INT, CPT, SCI$75K
Filing ↗ - IPOLICY SOLUTIONSTWIST BIOSCIENCE CORPORATION · 2025 Q2 · INT, CPT, TAR, SCI$75K
Filing ↗
Government Contracts
Federal awards to twist bioscience · USAspending
$228KAwarded · 4 contracts on record
- Department of Veterans AffairsSHAHRARA HUMANIZED MONOCLONAL ANTIBODY FOR SYNDECAN TWIST BIOSCIENCE$105K
Sep 18, 2024 · ↗ - Department of Health and Human ServicesTHE PURPOSE OF THIS PURCHASE ORDER IS TO PROVIDE THE NATIONAL INSTITUTE OF ENVIRONMENTAL HEALTH SCIENCES / DIVISION OF TRANSLATIONAL TOXICOL$27K
Jul 30, 2026 · ↗ - Department of Health and Human ServicesTWIST BIOSCIENCE$0
Dec 18, 2020 · ↗ - Department of JusticeTWIST BIOSCIENCE EQUIPMENT$97K
Jun 29, 2026 · ↗
U.S. Patents
Recent USPTO applications naming Twist Bioscience Corp
No USPTO patent applications found for Twist Bioscience Corp.
Annual Financials
From TWST's 10-K filings · XBRL
No annual XBRL figures on record for TWST. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in TWST's price history.
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 7.01Reg FD disclosureAug 19, 2026
EDGAR ↗ - 8-K · Items 8.01, 9.01Other eventsAug 19, 2026
EDGAR ↗ - 8-K · Items 1.01, 7.01, 9.01Material agreement · Reg FD disclosureAug 5, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsAug 3, 2026
EDGAR ↗ - 8-K · Items 2.02, 9.01Results of operationsMay 4, 2026
EDGAR ↗
About Twist Bioscience Corp
From SEC EDGAR company records
Industry (SIC 2836)Biological Products, (No Diagnostic Substances)
SectorHealthcare
HeadquartersSOUTH SAN FRANCISCO, CA
IncorporatedDE
SEC CIK0001581280 ↗