Key facts
- This page summarizes Ling Zhou's Form 3 filing for Adagene Inc. (ADAG).
- 0 reported transactions and 9 derivative rows are listed below.
- Accepted by SEC: 18 Mar 2026, 09:03.
Ling Zhou - 18 Mar 2026 Form 3 Insider Report for Adagene Inc. (ADAG)
- Reporting relationship
- ED of Human Resources
- Issuer ticker
- ADAG
- Reported as of
- 18 Mar 2026
- Net transaction value
- $0
- Reporting owner signature
- /s/ Ling Zhou
Source evidence
Original filing metadata and source links for verification.
3 source fields
Reporting owner
1 detail
Key filing fact
Ling Zhou filed Form 3 for Adagene Inc. (ADAG) on 18 Mar 2026.
Change
- No earlier filing in this sequence is available for direct comparison.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Official SEC source
View source filing
Ownership activity is grounded in SEC Form 3 disclosures.
Reporting Owners (1)
CIK 0002112499
Primary reporting owner
Zhou Ling
- Relationship
- ED of Human Resources
- Address
- 4F, BUILDING C14, NO. 218 XINGHU STREET, SUZHOU JIANGSU, CHINA
- Signature
- /s/ Ling Zhou
- Signature date
- 18 Mar 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
ADAG
holding
Ordinary Shares
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 2,969
- Date
- 18 Mar 2026
- Ownership
- Direct
ADAG
holding
Restricted Stock Unit
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 9,375
- Date
- 18 Mar 2026
- Ownership
- Direct
- Footnotes
- F1
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
ADAG
holding
Derivative
Nonqualified Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 18 Mar 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 25,000
- Exercise price
- $1.48
- Footnotes
- F2
ADAG
holding
Derivative
Nonqualified Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 18 Mar 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 3,125
- Exercise price
- $1.83
- Footnotes
- F3
ADAG
holding
Derivative
Nonqualified Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 18 Mar 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 1,250
- Exercise price
- $5.60
- Footnotes
- F4
ADAG
holding
Derivative
Nonqualified Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 18 Mar 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 20,000
- Exercise price
- $1.04
- Footnotes
- F5
ADAG
holding
Derivative
Nonqualified Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 18 Mar 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 20,000
- Exercise price
- $1.33
- Footnotes
- F6
ADAG
holding
Derivative
Nonqualified Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 18 Mar 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 26,217
- Exercise price
- $1.73
- Footnotes
- F7
ADAG
holding
Derivative
Nonqualified Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 18 Mar 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 25,000
- Exercise price
- $1.55
- Footnotes
- F8
ADAG
holding
Derivative
Nonqualified Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 18 Mar 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 35,000
- Exercise price
- $1.41
- Footnotes
- F9
ADAG
holding
Derivative
Nonqualified Stock Option (Right to Buy)
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- Date
- 18 Mar 2026
- Ownership
- Direct
- Underlying class
- Ordinary Shares
- Underlying amount
- 35,000
- Exercise price
- $2.03
- Footnotes
- F10
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 10 footnotes
Footnote F1
9,375 of Restricted Stock Units ("RSUs") granted under the Adagene Inc. 2021 Performance Incentive Plan. 3,125 of RSUs shall vest on each of the following dates: 7/23/2026, 7/23/2027, and 7/23/2028.
Footnote F2
25,000 of time-based incentive stock option granted under the Adagene Inc. Second Amended and Restated Share Incentive Plan (pre-IPO), and all such option are fully vested and exercisable.
Footnote F3
3,125 of performance-based incentive stock options granted under the Adagene Inc. Second Amended and Restated Share Incentive Plan (pre-IPO), and all such option are fully vested and exercisable.
Footnote F4
1,250 of performance-based stock options granted under the Adagene Inc. 2021 Performance Incentive Plan, and all such option are fully vested and exercisable.
Footnote F5
20,000 of time-based stock option granted on 5/3/2023 under the Adagene Inc. 2021 Performance Incentive Plan. The options shall become exercisable with respect to 25% of the options on each of the first four anniversaries of the grant date. Accordingly, 10,000 shares subject to this option are vested and exercisable.
Footnote F6
20,000 of time-based stock option granted on 12/27/2023 under the Adagene Inc. 2021 Performance Incentive Plan. The options shall become exercisable with respect to 25% of the options on each of the first four anniversaries of the grant date. Accordingly, 10,000 shares subject to this option are vested and exercisable.
Footnote F7
26,217 of time-based stock option granted on 11/17/2024 under the Adagene Inc. 2021 Performance Incentive Plan. 50% of the options shall vest on 6/30/2025 and 6/30/2026, respectively, so 13,109 shares subject to this option are vested and exercisable.
Footnote F8
25,000 of time-based stock option granted on 12/24/2024 under the Adagene Inc. 2021 Performance Incentive Plan. The options shall become exercisable with respect to 25% of the options on each of the first four anniversaries of the grant date. Accordingly, 6,250 shares subject to this option are vested and exercisable.
Footnote F9
35,000 of time-based stock option granted on 6/5/2025 under the Adagene Inc. 2021 Performance Incentive Plan, and become exercisable with respect to 25% of the stock options on each of the first four anniversaries of the grant.
Footnote F10
35,000 of time-based stock option granted on 2/5/2026 under the Adagene Inc. 2021 Performance Incentive Plan, and become exercisable with respect to 25% of the stock options on each of the first four anniversaries of the grant.