Rallybio director exercises options for 3,562 shares
Rallybio director Wendy Chung exercised options into 3,562 common shares at a $2.38 strike, increasing her directly held stock position.
Rhea-AI Filing Summary
Rallybio Corp (RLYB) director Wendy Chung exercised stock options into common shares. On September 16, 2026, she exercised options for 3,562 shares of common stock at an exercise price of $2.38 per share, converting an option position into directly held stock.
The exercised option for 3,562 underlying shares now shows 0 options remaining from that grant, while her direct ownership in Rallybio common stock is reported as 3,562 shares following the transaction. No Rule 10b5-1 trading plan is reported for this activity.
Positive
- None.
Negative
- None.
Insider Trade Summary
3,562 shares exercised/converted
Exercise
2 txns
Insider
Chung Wendy
Role
Director
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Option (Right to Buy) | 3,562 | $0.00 | $0.00 |
| Exercise | Common Stock | 3,562 | $2.38 | $8K |
Holdings After Transaction:
Option (Right to Buy) — 0 contracts (Direct);
Common Stock — 3,562 shares (Direct)
Key Figures
Options exercised: 3,562 shares
Exercise price: $2.38 per share
Common shares acquired: 3,562 shares
+4 more
7 metrics
Options exercised
3,562 shares
Options (Right to Buy) for Rallybio common stock exercised on September 16, 2026
Exercise price
$2.38 per share
Conversion or exercise price for the options exercised into common stock
Common shares acquired
3,562 shares
Common stock received upon exercise of options on September 16, 2026
Common shares held after transaction
3,562 shares
Direct ownership in Rallybio common stock following the reported transactions
Options remaining from this grant
0 options
Total option shares following the exercise of 3,562 option shares
Option grant expiration date
May 13, 2035
Expiration date associated with the exercised option award
Option grant exercise date field
May 13, 2026
Exercise date associated with the option terms in the derivative entry
Key Terms
Option (Right to Buy), derivative security, Rule 10b5-1
3 terms
Option (Right to Buy) financial
"Security title is reported as Option (Right to Buy) for 3,562 shares"
derivative security financial
"The option exercise is described as Exercise or conversion of derivative security"
A derivative security is a financial contract whose value comes from the price or performance of something else, such as a stock, bond, commodity, or market index. For investors it acts like an insurance policy or a wager: it can be used to protect against losses, lock in prices, or amplify gains and losses, so it can change a portfolio’s risk and potential return without owning the underlying asset directly.
Rule 10b5-1 regulatory
"No Rule 10b5-1 trading plan is reported for this activity"
Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What did Rallybio (RLYB) director Wendy Chung report on this Form 4?
She reported exercising options covering 3,562 shares of Rallybio common stock at an exercise price of $2.38 per share on September 16, 2026, resulting in direct ownership of 3,562 common shares.
How many Rallybio (RLYB) options did Wendy Chung exercise and at what price?
Wendy Chung exercised 3,562 options for Rallybio common stock at an exercise (conversion) price of $2.38 per share, receiving 3,562 common shares in the transaction.
Did this Rallybio (RLYB) Form 4 show any remaining options from the exercised grant?
No. The option position associated with this exercise shows 0 options remaining following the transaction, indicating the 3,562-option grant was fully exercised.
Was the Rallybio (RLYB) option exercise by Wendy Chung under a Rule 10b5-1 plan?
The Form 4 indicates no Rule 10b5-1 trading plan for these transactions; the document-level Rule 10b5-1 checkbox is not affirmed for this filing.
AI-generated analysis. How Rhea-AI works. Not financial advice.
