RUPPERT JENS FRANK (EVP Canvys) sold 30.1% of their position (17K shares) of RICHARDSON ELECTRONICS, LTD. on the open market

Open‑market sale worth $205.5K — a major position exit. Review remaining holdings and any 10b5‑1 plan disclosures.

S · 3 sales

RUPPERT JENS FRANK

Filed: 1/29/2026ACC: 0001193125-26-029164

InsiderRUPPERT JENS FRANKCIK 1690429

→

IssuerRICHARDSON ELECTRONICS, LTD.CIK 355948

Officer· EVP Canvys

Since Aug 2018

-17K

Net shares

Net seller

$205.5K

Total sold

Open market trades

0B · 3S

Total transactions

17K acquired · 34K disposed

Non-Derivative Transactions7

Common Stock

Direct

M · Option Exercise

+6K

Price / share

$9.10

Trade value

$54.60K

% of position

15.2%

1/27/2026

39.50K→45.50K

Common Stock

Direct

M · Option Exercise

+2K

Price / share

$5.61

Trade value

$11.22K

% of position

4.4%

1/27/2026

45.50K→47.50K

Common Stock

Direct

M · Option Exercise

+5K

Price / share

$4.26

Trade value

$21.30K

% of position

10.5%

1/27/2026

47.50K→52.50K

Common Stock

Direct

M · Option Exercise

+4K

Price / share

$7.66

Trade value

$30.64K

% of position

7.6%

1/27/2026

52.50K→56.50K

Common Stock

Direct

S · Sale

−8K

Price / share

$12.19

Trade value

$97.49K

% of position

14.2%

1/27/2026

56.50K→48.50K

Common Stock

Direct

S · Sale

−7.90K

Price / share

$12.00

Trade value

$94.80K

% of position

16.3%

1/27/2026

48.50K→40.60K

Common Stock

Direct

S · Sale

−1.10K

Price / share

$11.99

Trade value

$13.19K

% of position

2.7%

1/27/2026

40.60K→39.50K

Total

Net shares

+0.00

Net value

-$87.72K

Security	Date	Type	Shares	Price / Share	Trade Value	% of Position	Held Before	Held After
Common Stock Direct	1/27/2026	M · Option Exercise	+6K	$9.10	$54.60K	15.2%	39.50K	45.50K
Common Stock Direct	1/27/2026	M · Option Exercise	+2K	$5.61	$11.22K	4.4%	45.50K	47.50K
Common Stock Direct	1/27/2026	M · Option Exercise	+5K	$4.26	$21.30K	10.5%	47.50K	52.50K
Common Stock Direct	1/27/2026	M · Option Exercise	+4K	$7.66	$30.64K	7.6%	52.50K	56.50K
Common Stock Direct	1/27/2026	S · Sale	−8K	$12.19	$97.49K	14.2%	56.50K	48.50K
Common Stock Direct	1/27/2026	S · Sale	−7.90K	$12.00	$94.80K	16.3%	48.50K	40.60K
Common Stock Direct	1/27/2026	S · Sale	−1.10K	$11.99	$13.19K	2.7%	40.60K	39.50K
Total			+0.00		-$87.72K

Derivative Transactions4

Employe Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

6K shares

−6K

Strike price

9.10

Held after

0.00

Exercisable

—

1/27/2026

Employe Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

2K shares

−2K

Strike price

5.61

Held after

0.00

Exercisable

—

1/27/2026

Employe Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

5K shares

−5K

Strike price

4.26

Held after

0.00

Exercisable

—

1/27/2026

Employe Stock Option (Right to Buy)

Direct

M · Option Exercise

Converts to

Common Stock

4K shares

−4K

Strike price

7.66

Held after

Exercisable

—

1/27/2026

Security	Converts To	Date	Type	Shares	Strike Price	Exercisable	Held After
Employe Stock Option (Right to Buy) Direct	Common Stock6K shares	1/27/2026	M · Option Exercise	−6K	9.10	—	0.00
Employe Stock Option (Right to Buy) Direct	Common Stock2K shares	1/27/2026	M · Option Exercise	−2K	5.61	—	0.00
Employe Stock Option (Right to Buy) Direct	Common Stock5K shares	1/27/2026	M · Option Exercise	−5K	4.26	—	0.00
Employe Stock Option (Right to Buy) Direct	Common Stock4K shares	1/27/2026	M · Option Exercise	−4K	7.66	—	1K