WEBTOON Entertainment Inc. (WBTN) Insider Trading & SEC Filings
Last SEC filing
WEBTOON Entertainment Inc. (WBTN) has filed 2 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-07-13. 2 Form 8-K material event filings were reported by WBTN in the last 90 days. InsiderAlpha tracks every WBTN SEC filing - Form 4, Form 144, and 8-K - in real time, including Rule 10b5-1 plan detection.
About WEBTOON Entertainment Inc. (WBTN)
WEBTOON Entertainment Inc. trades under the ticker WBTN. InsiderAlpha tracks 22 primary SEC Form 4 filings from 6 reporting insiders for WBTN since 2024, sourced directly from SEC EDGAR.
| Sector | Communication Services insider trading |
|---|---|
| SIC classification | Miscellaneous Publishing (SIC 2741) |
| SEC CIK | 0001997859 |
90-Day SEC Filing Activity
| Form 4 filings (90d) | 2 |
|---|---|
| Form 8-K filings (90d) | 2 |
| Latest Form 4 filing | 2026-07-13 |
Recent WBTN Insider Transactions (Form 4)
| Date | Insider | Role | Transaction | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| David J. Lee | Chief Financial Officer and Director | F - Tax withholding / forfeiture | 9.5K | $11.54 | $109K | SEC | |
| Yongsoo Kim | President and Director | F - Tax withholding / forfeiture | 12.1K | $11.98 | $144K | SEC | |
| David J. Lee | Chief Financial Officer and Director | F - Tax withholding / forfeiture | 3.0K | $13.24 | $40K | SEC | |
| Yongsoo Kim | President and Director | F - Tax withholding / forfeiture | 6.2K | $11.13 | $69K | SEC | |
| Junkoo Kim | Founder, CEO and Chairman of the Board | F - Tax withholding / forfeiture | 28.9K | $11.13 | $322K | SEC | |
| Yongsoo Kim | President and Director | F - Tax withholding / forfeiture | 985 | $11.46 | $11K | SEC | |
| David J. Lee | Chief Financial Officer and Director | F - Tax withholding / forfeiture | 9.7K | $11.12 | $108K | SEC | |
| Hyeeun Son | Chief Design Officer | A - Grant or award | 17.8K | $0.00 | - | SEC | |
| Junkoo Kim | Founder, CEO and Chairman of the Board | A - Grant or award | 178.5K | $0.00 | - | SEC | |
| Hyojung Kim | Chief Product Officer | A - Grant or award | 17.8K | $0.00 | - | SEC | |
| Yongsoo Kim | President and Director | A - Grant or award | 66.9K | $0.00 | - | SEC | |
| Yongsoo Kim | President and Director | F - Tax withholding / forfeiture | 2.0K | $9.21 | $18K | SEC | |
| Yongsoo Kim | Chief Strategy Officer, Head of Global WEBTOON | F - Tax withholding / forfeiture | 4.7K | $10.61 | $50K | SEC | |
| David J. Lee | Chief Financial Officer, Chief Operating Officer and Director | F - Tax withholding / forfeiture | 3.0K | $12.09 | $36K | SEC | |
| Yongsoo Kim | Chief Strategy Officer, Head of Global WEBTOON | A - Grant or award | 37.9K | $0.00 | - | SEC |
All transactions sourced from SEC EDGAR Form 4 filings for WEBTOON Entertainment Inc. (WBTN). Updated in real time as new filings are submitted to the SEC.
Most-Active WBTN Insiders - Last 90 Days
| Insider | Form 4 filings | Total transaction value |
|---|---|---|
| David J. Lee | 1 | $109K |
| Yongsoo Kim | 1 | $144K |
Recent WBTN Form 8-K Material Events
- - Item 5.07 [SEC]
- - Item 2.02, 9.01 [SEC]
- - Item 5.02, 7.01, 9.01 · Leadership · neutral [SEC]
WEBTOON Entertainment announced executive leadership changes effective April 10, 2026, including the resignation of Chief Technology Officer Chankyu Park (who will remain through May 2026 in a transition role) and a title change for David J. Lee from Chief Financial Officer and C - - Item 5.02, 9.01 · Leadership · neutral [SEC]
WEBTOON's Board of Directors approved a housing assistance policy for the CEO providing a fixed annual cash allowance of $250,350 to support relocation of the CEO's primary residence from Korea to the United States for business purposes. The policy requires the CEO to be actively - - Item 5.02, 9.01 · Leadership · neutral [SEC]
This is an amended 8-K/A filing that supplements a previously filed 8-K from March 5, 2026 regarding the appointment of Yongsoo Kim as President of WEBTOON Entertainment. The amendment discloses compensation details for Mr. Kim's appointment that were not determinable at the time
Recent Insider Filings
- - David J. Lee (Chief Financial Officer and Director)
- - Yongsoo Kim (President and Director)
- - David J. Lee (Chief Financial Officer and Director)
- - Yongsoo Kim (President and Director)
- - Junkoo Kim (Founder, CEO and Chairman of the Board)
Form 4 Transaction Code Reference
SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in WBTN insider filings:
| P | Open-market purchase by the insider |
|---|---|
| S | Open-market sale by the insider |
| A | Grant, award, or other acquisition from the issuer |
| M | Exercise or conversion of derivative security (e.g. options) |
| F | Payment of exercise price or tax liability via share withholding |
| G | Bona-fide gift of securities |
| D | Disposition to the issuer (e.g. share buyback participation) |
| J | Other acquisition or disposition |
| X | Exercise of in-the-money or at-the-money derivative security |
| C | Conversion of derivative security |
| V | Transaction voluntarily reported earlier than required |
WBTN Insider Trading - FAQ
- What is the latest insider trade for WBTN?
- WEBTOON Entertainment Inc. (WBTN) had 2 insider filings in the last 90 days, with the most recent on 2026-07-13. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
- How many insiders are buying WBTN stock?
- 0 insider purchases of WBTN were filed in the last 90 days.
- How many insiders are selling WBTN stock?
- 0 insider sales of WBTN were filed in the last 90 days.
- Where can I see WBTN SEC filings (Form 4, 10-K, 10-Q, 8-K)?
- This page tracks WBTN Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Learn More
- What is SEC Form 4?
- How to read insider buying signals
- Rule 10b5-1 trading plans explained
- The cluster buying signal
Open the live WBTN dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.