Senior insider sale

VP Corporate Development at POWER INTEGRATIONS INC — senior position signals high conviction

$3.26M

44.40K shares

What this filing means

WALKER CLIFFORD plans to sell 44.40K shares of POWER INTEGRATIONS INC valued at approximately $3.26M. 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.

WALKER CLIFFORD

Filed: 5/26/2026ACC: 0001950047-26-005058

InsiderWALKER CLIFFORDCIK 1182413

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IssuerPOWER INTEGRATIONS INCCIK 833640

Officer· VP Corporate Development

Since Aug 2018

44.40K

Shares to sell

$3.26M

Approx. market value

14.70K

Acquired (3 months)

Planned

2 completed

Securities Acquired — Last 3 Months17

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Restricted stock vesting under a registered plan

Cash

2/9/2026

10.00

Restricted stock vesting under a registered plan

Cash

2/6/2026

1.95K

Restricted stock vesting under a registered plan

Cash

2/2/2026

781.00

Shares Purchased through Employee Stock Purchase Plan

Cash

1/31/2026

1.39K

Restricted stock vesting under a registered plan

Cash

1/30/2026

630.00

Restricted stock vesting under a registered plan

Cash

1/29/2026

477.00

Restricted stock vesting under a registered plan

Cash

1/27/2026

651.00

Restricted stock vesting under a registered plan

Cash

1/26/2026

1.06K

Restricted stock vesting under a registered plan

Cash

1/25/2026

276.00

Shares Purchased through Employee Stock Purchase Plan

Cash

7/31/2025

207.00

Restricted stock vesting under a registered plan

Cash

4/1/2025

1.91K

Restricted stock vesting under a registered plan

Cash

2/9/2025

1.46K

Restricted stock vesting under a registered plan

Cash

2/7/2025

933.00

Restricted stock vesting under a registered plan

Cash

2/5/2025

640.00

Shares Purchased through Employee Stock Purchase Plan

Cash

1/31/2025

225.00

Restricted stock vesting under a registered plan

Cash

1/30/2025

1.49K

Restricted stock vesting under a registered plan

Cash

1/29/2025

614.00

Total acquired14.70K

Acquisition Date	Type	Amount Acquired	Gift
2/9/2026	Restricted stock vesting under a registered plan Cash	10.00	—
2/6/2026	Restricted stock vesting under a registered plan Cash	1.95K	—
2/2/2026	Restricted stock vesting under a registered plan Cash	781.00	—
1/31/2026	Shares Purchased through Employee Stock Purchase Plan Cash	1.39K	—
1/30/2026	Restricted stock vesting under a registered plan Cash	630.00	—
1/29/2026	Restricted stock vesting under a registered plan Cash	477.00	—
1/27/2026	Restricted stock vesting under a registered plan Cash	651.00	—
1/26/2026	Restricted stock vesting under a registered plan Cash	1.06K	—
1/25/2026	Restricted stock vesting under a registered plan Cash	276.00	—
7/31/2025	Shares Purchased through Employee Stock Purchase Plan Cash	207.00	—
4/1/2025	Restricted stock vesting under a registered plan Cash	1.91K	—
2/9/2025	Restricted stock vesting under a registered plan Cash	1.46K	—
2/7/2025	Restricted stock vesting under a registered plan Cash	933.00	—
2/5/2025	Restricted stock vesting under a registered plan Cash	640.00	—
1/31/2025	Shares Purchased through Employee Stock Purchase Plan Cash	225.00	—
1/30/2025	Restricted stock vesting under a registered plan Cash	1.49K	—
1/29/2025	Restricted stock vesting under a registered plan Cash	614.00	—
Total		14.70K

Planned & Completed Dispositions3

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Completed

—Completed

Units to sell

20.34K

Market value

$1.47M

5/13/2026

—Completed

Units to sell

9.36K

Market value

$667.0K

5/12/2026

Planned — Approximate Date

NASDAQPlanned

Units to sell

14.70K

Market value

$1.13M

5/26/2026

Total

Units

44.40K

Value

$3.26M

Date	Units to Sell	Approx. Market Value	Exchange	Status
Completed
5/13/2026	20.34K	$1.47M	—	Completed
5/12/2026	9.36K	$667.0K	—	Completed
Planned — Approximate Date
5/26/2026	14.70K	$1.13M	NASDAQ	Planned
Total	44.40K	$3.26M