Twist Bioscience holder proposes $44.7M share sale
Twist Bioscience Corp (TWST) security holder Emily M. Leproust has provided notice under Rule 144 of a proposed sale of up to 295,037 shares of common stock, with an aggregate market value of $44,677,452.91, expected around September 17, 2026 on NASDAQ.
Rhea-AI Filing Summary
Twist Bioscience Corp (TWST) security holder Emily M. Leproust has provided notice under Rule 144 of a proposed sale of up to 295,037 shares of common stock, with an aggregate market value of $44,677,452.91, expected around September 17, 2026 on NASDAQ.
The notice lists these shares as having been acquired through various restricted stock vestings, an ESPP purchase, and a stock option exercise for 208,708 shares. Twist Bioscience Corp reports 62,707,424 common shares outstanding as of September 17, 2026; this is a baseline figure, not the amount being sold.
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Key Figures
Shares to be sold under Rule 144: 295,037 shares
Aggregate market value of shares to be sold: $44,677,452.91
Shares outstanding: 62,707,424 shares
+4 more
7 metrics
Shares to be sold under Rule 144
295,037 shares
Common stock covered by the Rule 144 notice for sale around September 17, 2026
Aggregate market value of shares to be sold
$44,677,452.91
Value of 295,037 Twist Bioscience Corp common shares in the planned Rule 144 sale
Shares outstanding
62,707,424 shares
Twist Bioscience Corp common shares outstanding as of September 17, 2026
Stock option exercise shares
208,708 shares
Common shares underlying options listed as acquired on September 17, 2026
Sale on August 10, 2026
113,318 shares for $14,183,062.19
Common stock sold by Emily M. Leproust during the past 3 months
Sale on August 25, 2026
41,570 shares for $6,317,760.97
Common stock sold by Emily M. Leproust during the past 3 months
Exchange
NASDAQ
Planned sales venue for Twist Bioscience Corp common stock
Key Terms
Rule 144, Restricted Stock Vesting, ESPP Purchase, Stock Option Exercise, +1 more
5 terms
Rule 144 regulatory
"See the definition of "person" in paragraph (a) of Rule 144."
Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.
Restricted Stock Vesting financial
"Common | 11/08/2024 | Restricted Stock Vesting | Issuer"
Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.
ESPP Purchase financial
"Common | 02/20/2025 | ESPP Purchase | Issuer"
Stock Option Exercise financial
"Common | 09/17/2026 | Stock Option Exercise | Issuer"
A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.
attorney-in-fact regulatory
"as attorney-in-fact for Emily M. Leproust"
An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
Who is acting for Emily M. Leproust in connection with the TWST Rule 144 notice?
The notice is signed by /s/ Gary Redman as a duly authorized representative of Fidelity Brokerage Services LLC, acting as attorney-in-fact for Emily M. Leproust.
AI-generated analysis. How Rhea-AI works. Not financial advice.
