TEH BAN SENG (SVP, Sales) sold 12.8% of their position (2.01K shares) of SEAGATE TECHNOLOGY HOLDINGS PLC on the open market

Open‑market sale worth $594.8K — a moderate reduction. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 1 sale

TEH BAN SENG

Filed: 12/12/2025ACC: 0001137789-25-000368

InsiderTEH BAN SENGCIK 1801425

→

IssuerSEAGATE TECHNOLOGY HOLDINGS PLCCIK 1137789

Officer· SVP, Sales

Since Jan 2020

-2.01K

Net shares

Net seller

$594.8K

Total sold

Open market trades

0B · 1S

Total transactions

2.40K acquired · 4.41K disposed

Non-Derivative Transactions4

Ordinary Shares

Direct

M · Option Exercise

+989.00

Price / share

—

Trade value

—

% of position

7.4%

12/11/2025

13.30K→14.29K

Ordinary Shares

Direct

M · Option Exercise

+532.00

Price / share

$68.83

Trade value

$36.62K

% of position

3.7%

12/11/2025

14.29K→14.82K

Ordinary Shares

Direct

M · Option Exercise

+879.00

Price / share

$64.31

Trade value

$56.53K

% of position

5.9%

12/11/2025

14.82K→15.70K

Ordinary Shares

Direct

S · Sale

−2.01K

Price / share

$295.90

Trade value

$594.76K

% of position

12.8%

12/11/2025

15.70K→13.69K

Total

Net shares

+390.00

Net value

-$501.61K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Ordinary Shares Direct	12/11/2025	M · Option Exercise	+989.00	—	—	7.4%	13.30K	14.29K
Ordinary Shares Direct	12/11/2025	M · Option Exercise	+532.00	$68.83	$36.62K	3.7%	14.29K	14.82K
Ordinary Shares Direct	12/11/2025	M · Option Exercise	+879.00	$64.31	$56.53K	5.9%	14.82K	15.70K
Ordinary Shares Direct	12/11/2025	S · Sale	−2.01K	$295.90	$594.76K	12.8%	15.70K	13.69K
Total			+390.00		-$501.61K

Derivative Transactions3

Restricted Share Unit

Direct

M · Option Exercise

Converts to

Ordinary Shares

989.00 shares

−989.00

Strike price

Held after

6.92K

Exercisable

—

12/11/2025

NQ Options

Direct

M · Option Exercise

Converts to

Ordinary Shares

532.00 shares

−532.00

Strike price

68.83

Held after

4.79K

Exercisable

—

12/11/2025

NQ Options

Direct

M · Option Exercise

Converts to

Ordinary Shares

879.00 shares

−879.00

Strike price

64.31

Held after

18.45K

Exercisable

—

12/11/2025

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Restricted Share Unit Direct	Ordinary Shares989.00 shares	12/11/2025	M · Option Exercise	−989.00	0	—	6.92K
NQ Options Direct	Ordinary Shares532.00 shares	12/11/2025	M · Option Exercise	−532.00	68.83	—	4.79K
NQ Options Direct	Ordinary Shares879.00 shares	12/11/2025	M · Option Exercise	−879.00	64.31	—	18.45K