Assembly Biosciences’ White sells shares for taxes
The two reported sales were required sell-to-cover transactions for tax withholding and were described as non-discretionary.
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Form Type
4
Rhea-AI Filing Summary
Assembly Biosciences, Inc. (ASMB) Chief Manufacturing Officer Nicole S. White reported a performance-based restricted stock unit award covering 13,705 common shares. The performance condition was achieved October 30, 2026; vesting is in two equal installments on October 30, 2026 and October 30, 2027, subject to continuous service on each date. On November 2, 2026, she sold 2,564 shares at a weighted average price of $19.6077 per share and 29 shares at $20.3480 per share to cover tax withholding. The sales were required by an administrative rule adopted by the issuer’s Compensation Committee and were not discretionary; no Rule 10b5-1 plan is reported.
Insider Trade Summary
Net Seller: 2,593 shares
Net Sell
3 txns
Insider
White Nicole S
Role
Chief Manufacturing Officer
Sold
2,593 shs ($51K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock F2, F3 | 2,564 | $19.6077 | $50K |
| Sale | Common Stock F2, F4 | 29 | $20.348 | $590.09 |
| Grant/Award | Common Stock F1 | 13,705 | $0.00 | $0.00 |
Holdings After Transaction:
Common Stock — 59,257 shares (Direct)
Footnotes (4)
- F1. Represents shares of common stock issuable under a performance-based restricted stock unit award dated June 16, 2025. On October 30, 2026, the performance-based vesting condition was achieved. These shares of common stock vest in two equal installments, assuming continuous service on each vesting date, as follows: October 30, 2026 and October 30, 2027.
- F2. The sales reported on this Form 4 represent shares sold by the reporting person to cover tax withholding obligations in connection with the vesting and settlement of restricted stock units. The sales are mandated by an administrative rule adopted by the Compensation Committee of the Issuer's Board of Directors that requires the satisfaction of tax withholding obligations to be funded by a "sell-to-cover" transaction and do not represent discretionary transactions by the reporting person.
- F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.28 to $20.27, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within.
- F4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.30 to $20.37, inclusive. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within.
Key Figures
Shares covered by performance-based restricted stock unit award: 13,705 common shares
Shares sold: 2,564 shares
Weighted average sale price: $19.6077 per share
+2 more
5 metrics
Shares covered by performance-based restricted stock unit award
13,705 common shares
Performance condition achieved October 30, 2026
Shares sold
2,564 shares
November 2, 2026; sell-to-cover transaction
Weighted average sale price
$19.6077 per share
2,564 shares sold November 2, 2026
Shares sold
29 shares
November 2, 2026; sell-to-cover transaction
Weighted average sale price
$20.3480 per share
29 shares sold November 2, 2026
Key Terms
performance-based restricted stock unit award, sell-to-cover transaction, weighted average price, vesting condition
4 terms
performance-based restricted stock unit award financial
"performance-based restricted stock unit award dated June 16, 2025"
A performance-based restricted stock unit award is a promise to give company shares to an employee or executive only if the business hits specific targets over a set period. Think of it as a conditional prize that vests like a savings plan: if agreed goals (such as revenue, profit, or stock performance) are met, the recipient receives the shares; if not, they get nothing. Investors pay attention because these awards align management incentives with company results and can affect share count, future earnings and executive behavior.
sell-to-cover transaction financial
"funded by a "sell-to-cover" transaction"
A sell-to-cover transaction is when a person granted company stock (for example as part of compensation or option exercise) immediately sells enough of those shares to pay required taxes or exercise costs and keeps the rest. Think of it like cashing part of a bonus to cover the tax bill; it provides necessary cash without the holder needing outside funds. Investors watch these sales because they increase trading volume and slightly reduce insider holdings, but they often reflect routine tax or cost management rather than a judgment on the company’s prospects.
weighted average price financial
"The price reported in Column 4 is a weighted average price."
Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.
vesting condition financial
"the performance-based vesting condition was achieved"
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
How does Nicole S. White’s ASMB restricted stock unit award vest?
The performance-based award covered 13,705 common shares, and its performance-based vesting condition was achieved October 30, 2026. The shares vest in two equal installments on October 30, 2026 and October 30, 2027, assuming continuous service on each vesting date.
AI-generated analysis. How Rhea-AI works. Not financial advice.
