Zai Lab CEO exercises options, sells 100K ADS
Zai Lab Ltd chairperson and CEO Du Ying reported option exercises and share sales under a pre-arranged trading plan.
Rhea-AI Filing Summary
Zai Lab Ltd chairperson and CEO Du Ying reported option exercises and share sales under a pre-arranged trading plan. On March 6 and March 9, 2026, Du Ying exercised stock options for a total of 100,000 American Depositary Shares at an exercise price of $1.74 per ADS and then sold 100,000 ADS in open-market transactions at weighted average prices of $19.4187 and $19.0293 per ADS. Following these transactions, Du Ying directly holds 964,161 ADS. The filing notes that each ADS represents ten ordinary shares and that all trades were executed pursuant to a Rule 10b5-1 trading plan adopted on November 11, 2025, indicating the sales were pre-scheduled rather than opportunistic.
Positive
- None.
Negative
- None.
Insider Trade Summary 10b5-1
Exercise and Sale: 100,000 shares ($1.75M approx. pre-tax spread)
Exercise and Sale
6 txns
Insider
Du Ying
Role
Chairperson & CEO
Sold
100,000 shs ($1.92M)
Approx. gross sale proceeds
$1.92M
Approx. exercise cost
$174K
Approx. pre-tax spread
$1.75M
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Options (Right to Buy) | 50,000 | $0.00 | $0.00 |
| Exercise | American Depositary Shares | 50,000 | $1.74 | $87K |
| Sale | American Depositary Shares | 50,000 | $19.0293 | $951K |
| Exercise | Stock Options (Right to Buy) | 50,000 | $0.00 | $0.00 |
| Exercise | American Depositary Shares | 50,000 | $1.74 | $87K |
| Sale | American Depositary Shares | 50,000 | $19.4187 | $971K |
Holdings After Transaction:
Stock Options (Right to Buy) — 722,184 contracts (Direct);
American Depositary Shares — 964,161 shares (Direct)
Footnotes (5)
- F1. Each American Depositary Share ("ADS") represents ten Ordinary Shares of the issuer. Our ADSs and Ordinary Shares are fully fungible. For purposes of this Form 4, we are reporting this in terms of ADSs.
- F2. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 11, 2025.
- F3. Reflects a weighted average sale price of $19.4187 per share, at prices ranging from $19.04 to $19.68 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.
- F4. Reflects a weighted average sale price of $19.0293 per share, at prices ranging from $18.78 to $19.25 per share. The Reporting Person will provide, upon request by the staff of the Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, full information regarding the number of shares sold at each separate price.
- F5. The option vested in equal annual installments over five years beginning on August 25, 2017, the first anniversary of the date of grant.
FAQ
What insider transactions did Zai Lab (ZLAB) report for Du Ying?
Du Ying exercised stock options for 100,000 American Depositary Shares and sold 100,000 ADS in open-market transactions. These moves combined option exercises with share disposals while leaving a sizable remaining direct holding of 964,161 ADS after the reported trades.
At what prices did Du Ying sell Zai Lab (ZLAB) ADS in this Form 4?
Du Ying sold 50,000 American Depositary Shares at a weighted average price of $19.4187 and another 50,000 ADS at $19.0293. Each sale covered multiple trades within indicated price ranges, as detailed in the weighted-average footnotes.
Were Du Ying’s Zai Lab (ZLAB) transactions part of a Rule 10b5-1 plan?
Yes. The filing states all transactions were effected under a Rule 10b5-1 trading plan adopted on November 11, 2025. Such pre-arranged plans schedule trades in advance, reducing the significance of short-term market timing in interpreting these sales.
What type of securities did Du Ying exercise and sell for Zai Lab (ZLAB)?
Du Ying exercised stock options with a right to buy 100,000 American Depositary Shares at $1.74 per ADS and then sold 100,000 ADS. Each ADS represents ten ordinary shares of Zai Lab, and the company’s ADSs and ordinary shares are fully fungible.
Over what period did Du Ying’s exercised Zai Lab (ZLAB) options vest?
The stock option exercised in these transactions vested in equal annual installments over five years beginning August 25, 2017. That schedule reflects long-term compensation that became exercisable over time before being converted into American Depositary Shares.
AI-generated analysis. How Rhea-AI works. Not financial advice.
