WBTN

WEBTOON Entertainment Inc.

Insider trading activity for WEBTOON Entertainment Inc., straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 6 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Past 12 months

net buying

Bought(0 · 0 insiders): $0
Sold(0 · 0 insiders): $0

Transaction history

The 26 most recent Form 4 transactions.

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Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Aug 1	Lee David J.	See Remarks	FTAX	2,954	$9.12	$26.9K	-1.3%	Open the original filing on SEC.gov
Jul 12	Lee David J.	See Remarks	FTAX	9,463	$11.54	$109.2K	-4.1%	Open the original filing on SEC.gov
May 28	Kim Yongsoo	See Remarks	FTAX	12,053	$11.98	$144.4K	-5.5%	Open the original filing on SEC.gov
May 1	Lee David J.	See Remarks	FTAX	3,018	$13.24	$40K	-1.3%	Open the original filing on SEC.gov
Apr 26	Kim Yongsoo	See Remarks	FTAX	6,178	$11.13	$68.8K	-2.8%	Open the original filing on SEC.gov
Apr 26	Kim Junkoo	See Remarks	FTAX	28,887	$11.13	$321.5K	-4.2%	Open the original filing on SEC.gov
Apr 15	Kim Yongsoo	See Remarks	FTAX	985	$11.46	$11.3K	-0.4%	Open the original filing on SEC.gov
Apr 12	Lee David J.	See Remarks	FTAX	9,686	$11.12	$107.7K	-4.0%	Open the original filing on SEC.gov
Mar 26	Son Hyeeun	Chief Design Officer	AGRANT	17,848	—	—	+19.7%	Open the original filing on SEC.gov
Mar 26	Kim Yongsoo	See Remarks	AGRANT	66,930	—	—	+42.6%	Open the original filing on SEC.gov
Mar 26	Kim Junkoo	See Remarks	AGRANT	178,480	—	—	+35.0%	Open the original filing on SEC.gov
Mar 26	Kim Hyojung	Chief Product Officer	AGRANT	17,848	—	—	+21.0%	Open the original filing on SEC.gov
Mar 15	Kim Yongsoo	See Remarks	FTAX	1,964	$9.21	$18.1K	-1.2%	Open the original filing on SEC.gov
Feb 15	Kim Yongsoo	See Remarks	FTAX	4,679	$10.61	$49.6K	-2.9%	Open the original filing on SEC.gov
Feb 1	Lee David J.	See Remarks	FTAX	3,018	$12.09	$36.5K	-1.2%	Open the original filing on SEC.gov
Jan 30	Kim Yongsoo	See Remarks	AGRANT	37,868	—	—	+30.0%	Open the original filing on SEC.gov
Jan 12	Lee David J.	See Remarks	FTAX	10,311	$13.80	$142.3K	-4.0%	Open the original filing on SEC.gov
Nov 1, 2025	Lee David J.	See Remarks	FTAX	3,012	$17.53	$52.8K	-1.2%	Open the original filing on SEC.gov
Oct 12, 2025	Lee David J.	See Remarks	FTAX	9,666	$16.70	$161.4K	-3.6%	Open the original filing on SEC.gov
Aug 1, 2025	Lee David J.	See Remarks	FTAX	3,012	$9.23	$27.8K	-1.1%	Open the original filing on SEC.gov
Jul 12, 2025	Lee David J.	See Remarks	FTAX	9,347	$9.81	$91.7K	-3.3%	Open the original filing on SEC.gov
Jul 2, 2025	Jeong Saeju	Director	AGRANT	48,491	—	—	—	Open the original filing on SEC.gov
May 28, 2025	Kim Yongsoo	See Remarks	FTAX	11,132	$9.07	$101K	-8.1%	Open the original filing on SEC.gov
May 1, 2025	Lee David J.	See Remarks	FTAX	2,123	$9.23	$19.6K	-0.8%	Open the original filing on SEC.gov
Apr 15, 2025	Kim Yongsoo	See Remarks	FTAX	1,127	$8.29	$9.3K	-0.8%	Open the original filing on SEC.gov
Apr 12, 2025	Lee David J.	See Remarks	FTAX	6,811	$8.09	$55.1K	-2.3%	Open the original filing on SEC.gov

FTAX$26.9K

Lee David J. · See RemarksAug 1

2,954 sh @ $9.12 · -1.3% own

FTAX$109.2K

Lee David J. · See RemarksJul 12

9,463 sh @ $11.54 · -4.1% own

FTAX$144.4K

Kim Yongsoo · See RemarksMay 28

12,053 sh @ $11.98 · -5.5% own

FTAX$40K

Lee David J. · See RemarksMay 1

3,018 sh @ $13.24 · -1.3% own

FTAX$68.8K

Kim Yongsoo · See RemarksApr 26

6,178 sh @ $11.13 · -2.8% own

FTAX$321.5K

Kim Junkoo · See RemarksApr 26

28,887 sh @ $11.13 · -4.2% own

FTAX$11.3K

Kim Yongsoo · See RemarksApr 15

985 sh @ $11.46 · -0.4% own

FTAX$107.7K

Lee David J. · See RemarksApr 12

9,686 sh @ $11.12 · -4.0% own

AGRANT—

Son Hyeeun · Chief Design…Mar 26

17,848 sh · +19.7% own

AGRANT—

Kim Yongsoo · See RemarksMar 26

66,930 sh · +42.6% own

AGRANT—

Kim Junkoo · See RemarksMar 26

178,480 sh · +35.0% own

AGRANT—

Kim Hyojung · Chief Product…Mar 26

17,848 sh · +21.0% own

FTAX$18.1K

Kim Yongsoo · See RemarksMar 15

1,964 sh @ $9.21 · -1.2% own

FTAX$49.6K

Kim Yongsoo · See RemarksFeb 15

4,679 sh @ $10.61 · -2.9% own

FTAX$36.5K

Lee David J. · See RemarksFeb 1

3,018 sh @ $12.09 · -1.2% own

AGRANT—

Kim Yongsoo · See RemarksJan 30

37,868 sh · +30.0% own

FTAX$142.3K

Lee David J. · See RemarksJan 12

10,311 sh @ $13.80 · -4.0% own

FTAX$52.8K

Lee David J. · See RemarksNov 1, 2025

3,012 sh @ $17.53 · -1.2% own

FTAX$161.4K

Lee David J. · See RemarksOct 12, 2025

9,666 sh @ $16.70 · -3.6% own

FTAX$27.8K

Lee David J. · See RemarksAug 1, 2025

3,012 sh @ $9.23 · -1.1% own

FTAX$91.7K

Lee David J. · See RemarksJul 12, 2025

9,347 sh @ $9.81 · -3.3% own

AGRANT—

Jeong Saeju · DirectorJul 2, 2025

48,491 sh

FTAX$101K

Kim Yongsoo · See RemarksMay 28, 2025

11,132 sh @ $9.07 · -8.1% own

FTAX$19.6K

Lee David J. · See RemarksMay 1, 2025

2,123 sh @ $9.23 · -0.8% own

FTAX$9.3K

Kim Yongsoo · See RemarksApr 15, 2025

1,127 sh @ $8.29 · -0.8% own

FTAX$55.1K

Lee David J. · See RemarksApr 12, 2025

6,811 sh @ $8.09 · -2.3% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

4 of 26 filings we hold were filed after the two-business-day deadline. The furthest past the deadline was 5 business days late.

Form 4 filings made after the two-business-day deadline, with the transaction date, the filing date and the number of business days between them.
Traded	Filed	Insider	Past deadline	Largest line	Source
Mar 26	Apr 6	Kim HyojungChief Product Officer	5days	—	Filing ↗
Mar 26	Apr 6	Son HyeeunChief Design Officer	5days	—	Filing ↗
Mar 26	Apr 6	Kim YongsooSee Remarks	5days	—	Filing ↗
Mar 26	Apr 6	Kim JunkooSee Remarks	5days	—	Filing ↗

Kim HyojungChief Product Officer

5days

Traded Mar 26 · filed Apr 6Filing ↗

Son HyeeunChief Design Officer

5days

Traded Mar 26 · filed Apr 6Filing ↗

Kim YongsooSee Remarks

5days

Traded Mar 26 · filed Apr 6Filing ↗

Kim JunkooSee Remarks

5days

Traded Mar 26 · filed Apr 6Filing ↗

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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