CHU MAGGIE (SVP, CHRO) sold 65.5% of their position (11.40K shares) of LITTELFUSE INC /DE on the open market

Open‑market sale worth $4.96M — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales

CHU MAGGIE

Filed: 5/21/2026ACC: 0001872974-26-000011

InsiderCHU MAGGIECIK 1872974

→

IssuerLITTELFUSE INC /DECIK 889331

Officer· SVP, CHRO

Since Jul 2021

-11.40K

Net shares

Net seller

$4.96M

Total sold

Open market trades

0B · 3S

Total transactions

11.40K acquired · 22.79K disposed

Non-Derivative Transactions6

Common Stock

Direct

M · Option Exercise

+4.03K

Price / share

$231.64

Trade value

$933.51K

% of position

67.2%

5/20/2026

6K→10.03K

Common Stock

Direct

M · Option Exercise

+4.28K

Price / share

$240.76

Trade value

$1.03M

% of position

42.7%

5/20/2026

10.03K→14.31K

Common Stock

Direct

M · Option Exercise

+3.08K

Price / share

$230.39

Trade value

$710.52K

% of position

21.5%

5/20/2026

14.31K→17.40K

Common Stock

Direct

S · Sale

−8.93K

Price / share

$435.22

Trade value

$3.88M

% of position

51.3%

5/20/2026

17.40K→8.47K

Common Stock

Direct

S · Sale

−2.41K

Price / share

$436.38

Trade value

$1.05M

% of position

28.4%

5/20/2026

8.47K→6.06K

Common Stock

Direct

S · Sale

−63.00

Price / share

$437.37

Trade value

$27.55K

% of position

1.0%

5/20/2026

6.06K→6K

Total

Net shares

+0.00

Net value

-$2.29M

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	5/20/2026	M · Option Exercise	+4.03K	$231.64	$933.51K	67.2%	6K	10.03K
Common Stock Direct	5/20/2026	M · Option Exercise	+4.28K	$240.76	$1.03M	42.7%	10.03K	14.31K
Common Stock Direct	5/20/2026	M · Option Exercise	+3.08K	$230.39	$710.52K	21.5%	14.31K	17.40K
Common Stock Direct	5/20/2026	S · Sale	−8.93K	$435.22	$3.88M	51.3%	17.40K	8.47K
Common Stock Direct	5/20/2026	S · Sale	−2.41K	$436.38	$1.05M	28.4%	8.47K	6.06K
Common Stock Direct	5/20/2026	S · Sale	−63.00	$437.37	$27.55K	1.0%	6.06K	6K
Total			+0.00		-$2.29M

Derivative Transactions3

Stock Option (right to buy)

Direct

M · Option Exercise

Converts to

Common Stock

4.03K shares

−4.03K

Strike price

231.64

Held after

0.00

Exercisable

—

4/28/2022

Stock Option (right to buy)

Direct

M · Option Exercise

Converts to

Common Stock

4.28K shares

−4.28K

Strike price

240.76

Held after

0.00

Exercisable

—

4/27/2023

Stock Option (right to buy)

Direct

M · Option Exercise

Converts to

Common Stock

3.08K shares

−3.08K

Strike price

230.39

Held after

1.54K

Exercisable

—

4/25/2024

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Stock Option (right to buy) Direct	Common Stock4.03K shares	4/28/2022	M · Option Exercise	−4.03K	231.64	—	0.00
Stock Option (right to buy) Direct	Common Stock4.28K shares	4/27/2023	M · Option Exercise	−4.28K	240.76	—	0.00
Stock Option (right to buy) Direct	Common Stock3.08K shares	4/25/2024	M · Option Exercise	−3.08K	230.39	—	1.54K