Senior insider sale

PRESIDENT, GLOBAL BUS. UNITS at LUMENTUM HOLDINGS INC. — senior position signals high conviction

$12.56M

14K shares

What this filing means

WUPEN YUEN plans to sell 14K shares of LUMENTUM HOLDINGS INC. valued at approximately $12.56M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

WUPEN YUEN

Filed: 9/25/2026ACC: 0001950047-26-009811

InsiderWUPEN YUENCIK 1489550

→

IssuerLUMENTUM HOLDINGS INC.CIK 1633978

Officer· PRESIDENT, GLOBAL BUS. UNITS

Since Feb 2026

14K

Shares to sell

$12.56M

Approx. market value

500.00

Acquired (3 months)

Planned

25 completed

Securities Acquired — Last 3 Months1

Sort

Restricted Stock

Not Applicable

8/21/2025

500.00

Total acquired500.00

Acquisition Date	Type	Amount Acquired	Gift
8/21/2025	Restricted Stock Not Applicable	500.00	—
Total		500.00

Planned & Completed Dispositions26

Sort

Completed

—Completed

Units to sell

500.00

Market value

$460.5K

9/24/2026

—Completed

Units to sell

500.00

Market value

$473.3K

9/23/2026

—Completed

Units to sell

500.00

Market value

$467.8K

9/22/2026

—Completed

Units to sell

500.00

Market value

$479.6K

9/21/2026

—Completed

Units to sell

500.00

Market value

$460.0K

9/18/2026

—Completed

Units to sell

500.00

Market value

$466.7K

9/17/2026

—Completed

Units to sell

500.00

Market value

$428.4K

9/16/2026

—Completed

Units to sell

500.00

Market value

$420.8K

9/15/2026

—Completed

Units to sell

500.00

Market value

$431.1K

9/14/2026

—Completed

Units to sell

500.00

Market value

$472.2K

9/11/2026

—Completed

Units to sell

500.00

Market value

$480.7K

9/10/2026

—Completed

Units to sell

500.00

Market value

$489.3K

9/9/2026

—Completed

Units to sell

500.00

Market value

$448.0K

9/8/2026

—Completed

Units to sell

500.00

Market value

$430.0K

9/4/2026

—Completed

Units to sell

500.00

Market value

$435.0K

9/3/2026

—Completed

Units to sell

500.00

Market value

$432.2K

9/2/2026

—Completed

Units to sell

500.00

Market value

$450.5K

9/1/2026

—Completed

Units to sell

500.00

Market value

$447.5K

8/31/2026

—Completed

Units to sell

500.00

Market value

$470.5K

8/28/2026

—Completed

Units to sell

500.00

Market value

$479.3K

8/27/2026

—Completed

Units to sell

500.00

Market value

$441.1K

8/26/2026

—Completed

Units to sell

500.00

Market value

$428.3K

8/25/2026

—Completed

Units to sell

500.00

Market value

$412.1K

8/24/2026

—Completed

Units to sell

500.00

Market value

$449.1K

8/21/2026

—Completed

Units to sell

1.50K

Market value

$1.24M

8/20/2026

Planned — Approximate Date

NASDAQPlanned

Units to sell

500.00

Market value

$467.9K

9/25/2026

Total

Units

14K

Value

$12.56M

Date	Units to Sell	Approx. Market Value	Exchange	Status
Completed
9/24/2026	500.00	$460.5K	—	Completed
9/23/2026	500.00	$473.3K	—	Completed
9/22/2026	500.00	$467.8K	—	Completed
9/21/2026	500.00	$479.6K	—	Completed
9/18/2026	500.00	$460.0K	—	Completed
9/17/2026	500.00	$466.7K	—	Completed
9/16/2026	500.00	$428.4K	—	Completed
9/15/2026	500.00	$420.8K	—	Completed
9/14/2026	500.00	$431.1K	—	Completed
9/11/2026	500.00	$472.2K	—	Completed
9/10/2026	500.00	$480.7K	—	Completed
9/9/2026	500.00	$489.3K	—	Completed
9/8/2026	500.00	$448.0K	—	Completed
9/4/2026	500.00	$430.0K	—	Completed
9/3/2026	500.00	$435.0K	—	Completed
9/2/2026	500.00	$432.2K	—	Completed
9/1/2026	500.00	$450.5K	—	Completed
8/31/2026	500.00	$447.5K	—	Completed
8/28/2026	500.00	$470.5K	—	Completed
8/27/2026	500.00	$479.3K	—	Completed
8/26/2026	500.00	$441.1K	—	Completed
8/25/2026	500.00	$428.3K	—	Completed
8/24/2026	500.00	$412.1K	—	Completed
8/21/2026	500.00	$449.1K	—	Completed
8/20/2026	1.50K	$1.24M	—	Completed
Planned — Approximate Date
9/25/2026	500.00	$467.9K	NASDAQ	Planned
Total	14K	$12.56M