HUANG JACK JIAJIA (Chief Executive Officer) purchased 3.9% of their position (1.06M shares) of 51TALK ONLINE EDUCATION GROUP on the open market

Open‑market purchase worth $16.52M — a small addition. The strongest form of insider conviction signal.

P · 16 purchases

HUANG JACK JIAJIA

Filed: 6/30/2026ACC: 0001104659-26-079099

InsiderHUANG JACK JIAJIACIK 2029760

→

Issuer51TALK ONLINE EDUCATION GROUPCIK 1659494

DirectorOfficer10% Owner· Chief Executive Officer

Since Mar 2026

+1.06M

Net shares

Net buyer

$16.52M

Total acquired

Open market trades

16B · 0S

Total transactions

1.34M acquired · 275K disposed

Non-Derivative Transactions17

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+12K

Price / share

$15.63

Trade value

$187.56K

% of position

0.0%

6/23/2026

27.30M→27.31M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+13.62K

Price / share

$15.50

Trade value

$211.11K

% of position

0.0%

6/23/2026

27.31M→27.32M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+72.78K

Price / share

$16.01

Trade value

$1.17M

% of position

0.3%

6/23/2026

27.32M→27.40M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+60K

Price / share

$16.00

Trade value

$960K

% of position

0.2%

6/23/2026

27.40M→27.46M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+60K

Price / share

$16.00

Trade value

$960K

% of position

0.2%

6/23/2026

27.46M→27.52M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+30K

Price / share

$16.00

Trade value

$480K

% of position

0.1%

6/23/2026

27.52M→27.55M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+3.72K

Price / share

$15.04

Trade value

$55.95K

% of position

0.0%

6/24/2026

27.55M→27.55M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+210K

Price / share

$15.46

Trade value

$3.25M

% of position

0.8%

6/24/2026

27.55M→27.76M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+60K

Price / share

$14.85

Trade value

$891K

% of position

0.2%

6/24/2026

27.76M→27.82M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+58.50K

Price / share

$14.81

Trade value

$866.38K

% of position

0.2%

6/24/2026

27.82M→27.88M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+60K

Price / share

$15.19

Trade value

$911.40K

% of position

0.2%

6/24/2026

27.88M→27.94M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+60K

Price / share

$15.40

Trade value

$924K

% of position

0.2%

6/24/2026

27.94M→28M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+60K

Price / share

$15.36

Trade value

$921.60K

% of position

0.2%

6/24/2026

28M→28.06M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+150.60K

Price / share

$15.76

Trade value

$2.37M

% of position

0.5%

6/25/2026

28.06M→28.21M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+60.00

Price / share

$14.85

Trade value

$891.00

% of position

0.0%

6/26/2026

28.21M→28.21M

Class A Ordinary Share, par value US$0.0001

Indirect

P · Purchase

+151.80K

Price / share

$15.61

Trade value

$2.37M

% of position

0.5%

6/26/2026

28.21M→28.36M

Class A Ordinary Share, par value US$0.0001

Indirect

M · Option Exercise

+275K

Price / share

—

Trade value

—

% of position

0.7%

6/30/2026

41.98M→42.25M

Total

Net shares

+1.34M

Net value

$16.52M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Class A Ordinary Share, par value US$0.0001 Indirect	6/23/2026	P · Purchase	+12K	$15.63	$187.56K	0.0%	27.30M	27.31M
Class A Ordinary Share, par value US$0.0001 Indirect	6/23/2026	P · Purchase	+13.62K	$15.50	$211.11K	0.0%	27.31M	27.32M
Class A Ordinary Share, par value US$0.0001 Indirect	6/23/2026	P · Purchase	+72.78K	$16.01	$1.17M	0.3%	27.32M	27.40M
Class A Ordinary Share, par value US$0.0001 Indirect	6/23/2026	P · Purchase	+60K	$16.00	$960K	0.2%	27.40M	27.46M
Class A Ordinary Share, par value US$0.0001 Indirect	6/23/2026	P · Purchase	+60K	$16.00	$960K	0.2%	27.46M	27.52M
Class A Ordinary Share, par value US$0.0001 Indirect	6/23/2026	P · Purchase	+30K	$16.00	$480K	0.1%	27.52M	27.55M
Class A Ordinary Share, par value US$0.0001 Indirect	6/24/2026	P · Purchase	+3.72K	$15.04	$55.95K	0.0%	27.55M	27.55M
Class A Ordinary Share, par value US$0.0001 Indirect	6/24/2026	P · Purchase	+210K	$15.46	$3.25M	0.8%	27.55M	27.76M
Class A Ordinary Share, par value US$0.0001 Indirect	6/24/2026	P · Purchase	+60K	$14.85	$891K	0.2%	27.76M	27.82M
Class A Ordinary Share, par value US$0.0001 Indirect	6/24/2026	P · Purchase	+58.50K	$14.81	$866.38K	0.2%	27.82M	27.88M
Class A Ordinary Share, par value US$0.0001 Indirect	6/24/2026	P · Purchase	+60K	$15.19	$911.40K	0.2%	27.88M	27.94M
Class A Ordinary Share, par value US$0.0001 Indirect	6/24/2026	P · Purchase	+60K	$15.40	$924K	0.2%	27.94M	28M
Class A Ordinary Share, par value US$0.0001 Indirect	6/24/2026	P · Purchase	+60K	$15.36	$921.60K	0.2%	28M	28.06M
Class A Ordinary Share, par value US$0.0001 Indirect	6/25/2026	P · Purchase	+150.60K	$15.76	$2.37M	0.5%	28.06M	28.21M
Class A Ordinary Share, par value US$0.0001 Indirect	6/26/2026	P · Purchase	+60.00	$14.85	$891.00	0.0%	28.21M	28.21M
Class A Ordinary Share, par value US$0.0001 Indirect	6/26/2026	P · Purchase	+151.80K	$15.61	$2.37M	0.5%	28.21M	28.36M
Class A Ordinary Share, par value US$0.0001 Indirect	6/30/2026	M · Option Exercise	+275K	—	—	0.7%	41.98M	42.25M
Total			+1.34M		$16.52M

Derivative Transactions1

Restricted Share Units (RSUs)

Indirect

M · Option Exercise

Converts to

Class A Ordinary Share, par value US$0.0001

275K shares

−275K

Strike price

Held after

0.00

Exercisable

—

6/30/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Restricted Share Units (RSUs) Indirect	Class A Ordinary Share, par value US$0.0001275K shares	6/30/2026	M · Option Exercise	−275K		—	0.00

Non-Derivative Holdings (Post-Transaction)2

Class A Ordinary Share, par value US$0.0001

Indirect

Shares owned432.90K

Class A Ordinary Share, par value US$0.0001

Direct

Shares owned7.30M

Total

7.30M direct·432.90K indirect7.73M

Security Title	Shares Owned	Ownership Type
Class A Ordinary Share, par value US$0.0001	432.90K	Indirect
Class A Ordinary Share, par value US$0.0001	7.30M	Direct
Total	7.73M	7.30M direct·432.90K indirect

Derivative Holdings (Post-Transaction)0

No derivative holdings reported